Support distinct versions of types we know how to convert.

`tryGet<RecordName>`  returns Option types rather than raise exceptions.

For example:

    generateProcsForModels(MyDb, [ User ])

will now create both:

    proc getUser*(db: MyDb, id: string): User
    proc tryGetUser*(db: MyDb, id: string): Option[User]

.gitignore

@@ -1,2 +1,4 @@
 *.sw?
 nimcache/
+nimble.develop
+nimble.paths

Makefile

@@ -0,0 +1,10 @@
+SOURCES=$(shell find src -type f)
+
+build: $(shell find src -type f)
+	nimble build
+
+docs: $(shell find src -type f)
+	nim doc --project --index:on --git.url:https://github.com/jdbernard/fiber-orm --outdir:docs src/fiber_orm
+	nim rst2html --outdir:docs README.rst
+	cp docs/fiber_orm.html docs/index.html
+.PHONY: docs

README.rst

@@ -0,0 +1,277 @@
+Fiber ORM
+~~~~~~~~~
+
+Lightweight ORM supporting the `Postgres`_ and `SQLite`_ databases in Nim.
+It supports a simple, opinionated model mapper to generate SQL queries based
+on Nim objects. It also includes a simple connection pooling implementation.
+
+Fiber ORM is not intended to be a 100% all-cases-covered ORM that handles
+every potential data access pattern one might wish to implement. It is best
+thought of as a collection of common SQL generation patterns. It is intended
+to cover 90% of the common queries and functions one might write when
+implementing an SQL-based access layer. It is expected that there may be a
+few more complicated queries that need to be implemented to handle specific
+access patterns.
+
+The simple mapping pattern provided by Fiber ORM also works well on top of
+databases that encapsulate data access logic in SQL with, for example,
+views.
+
+.. _Postgres: https://nim-lang.org/docs/db_postgres.html
+.. _SQLite: https://nim-lang.org/docs/db_sqlite.html
+
+Basic Usage
+===========
+
+Consider a simple TODO list application that keeps track of TODO items as
+well as time logged against those items.
+
+Example DB Schema
+-----------------
+
+You might have a schema such as:
+
+.. code-block:: SQL
+   create extension if not exists "pgcrypto";
+
+   create table todo_items columns (
+     id uuid not null primary key default gen_random_uuid(),
+     owner varchar not null,
+     summary varchar not null,
+     details varchar default null,
+     priority integer not null default 0,
+     related_todo_item_ids uuid[] not null default '{}'
+   );
+
+   create table time_entries columns (
+     id uuid not null primary key default gen_random_uuid(),
+     todo_item_id uuid not null references todo_items (id) on delete cascade,
+     start timestamp with timezone not null default current_timestamp,
+     stop timestamp with timezone default null,
+   );
+
+Example Model Definitions
+-------------------------
+
+Models may be defined as:
+
+.. code-block:: Nim
+   # models.nim
+   import std/[options, times]
+   import uuids
+
+   type
+     TodoItem* = object
+       id*: UUID
+       owner*: string
+       summary*: string
+       details*: Option[string]
+       priority*: int
+       relatedTodoItemIds*: seq[UUID]
+
+     TimeEntry* = object
+       id*: UUID
+       todoItemId*: Option[UUID]
+       start*: DateTime
+       stop*: Option[DateTime]
+
+Example Fiber ORM Usage
+-----------------------
+
+Using Fiber ORM we can generate a data access layer with:
+
+.. code-block:: Nim
+   # db.nim
+   import std/[options]
+   import db_connectors/db_postgres
+   import fiber_orm
+   import ./models.nim
+
+   type TodoDB* = DbConnPool
+
+   proc initDb*(connString: string): TodoDB =
+     result = fiber_orm.initPool(
+       connect = proc(): DbConn = open("", "", "", connString),
+       poolSize = 20,
+       hardCap = false)
+
+
+   generateProcsForModels(TodoDB, [TodoItem, TimeEntry])
+
+   generateLookup(TodoDB, TimeEntry, @["todoItemId"])
+
+This will generate the following procedures:
+
+.. code-block:: Nim
+   proc getTodoItem*(db: TodoDB, id: UUID): TodoItem;
+   proc getTodoItemIfItExists*(db: TodoDB, id: UUID): Option[TodoItem];
+   proc getAllTodoItems*(db: TodoDB): seq[TodoItem];
+   proc createTodoItem*(db: TodoDB, rec: TodoItem): TodoItem;
+   proc updateTodoItem*(db: TodoDB, rec: TodoItem): bool;
+   proc deleteTodoItem*(db: TodoDB, rec: TodoItem): bool;
+   proc deleteTodoItem*(db: TodoDB, id: UUID): bool;
+
+   proc findTodoItemsWhere*(db: TodoDB, whereClause: string,
+     values: varargs[string, dbFormat]): seq[TodoItem];
+
+   proc getTimeEntry*(db: TodoDB, id: UUID): TimeEntry;
+   proc getTimeEntryIfItExists*(db: TodoDB, id: UUID): Option[TimeEntry];
+   proc getAllTimeEntries*(db: TodoDB): seq[TimeEntry];
+   proc createTimeEntry*(db: TodoDB, rec: TimeEntry): TimeEntry;
+   proc updateTimeEntry*(db: TodoDB, rec: TimeEntry): bool;
+   proc deleteTimeEntry*(db: TodoDB, rec: TimeEntry): bool;
+   proc deleteTimeEntry*(db: TodoDB, id: UUID): bool;
+
+   proc findTimeEntriesWhere*(db: TodoDB, whereClause: string,
+     values: varargs[string, dbFormat]): seq[TimeEntry];
+
+   proc findTimeEntriesByTodoItemId(db: TodoDB, todoItemId: UUID): seq[TimeEntry];
+
+Object-Relational Modeling
+==========================
+
+Model Class
+-----------
+
+Fiber ORM uses simple Nim `object`s and `ref object`s as model classes.
+Fiber ORM expects there to be one table for each model class.
+
+Name Mapping
+````````````
+Fiber ORM uses `snake_case` for database identifiers (column names, table
+names, etc.) and `camelCase` for Nim identifiers. We automatically convert
+model names to and from table names (`TodoItem` <-> `todo_items`), as well
+as column names (`userId` <-> `user_id`).
+
+Notice that table names are automatically pluralized from model class names.
+In the above example, you have:
+
+===========    ================
+Model Class    Table Name
+===========    ================
+TodoItem       todo_items
+TimeEntry      time_entries
+===========    ================
+
+Because Nim is style-insensitive, you can generall refer to model classes
+and fields using `snake_case`, `camelCase`, or `PascalCase` in your code and
+expect Fiber ORM to be able to map the names to DB identifier names properly
+(though FiberORM will always use `camelCase` internally).
+
+See the `identNameToDb`_, `dbNameToIdent`_, `tableName`_ and `dbFormat`_
+procedures in the `fiber_orm/util`_ module for details.
+
+.. _identNameToDb: fiber_orm/util.html#identNameToDb,string
+.. _dbNameToIdent: fiber_orm/util.html#dbNameToIdent,string
+.. _tableName: fiber_orm/util.html#tableName,type
+.. _dbFormat: fiber_orm/util.html#dbFormat,DateTime
+.. _util: fiber_orm/util.html
+
+ID Field
+````````
+
+Fiber ORM expects every model class to have a field named `id`, with a
+corresponding `id` column in the model table. This field must be either a
+`string`, `integer`, or `UUID`_.
+
+When creating a new record the `id` field will be omitted if it is empty
+(`Option.isNone`_, `UUID.isZero`_, value of `0`, or only whitespace).  This
+is intended to allow for cases like the example where the database may
+generate an ID when a new record is inserted. If a non-zero value is
+provided, the create call will include the `id` field in the `INSERT` query.
+
+For example, to allow the database to create the id:
+
+.. code-block:: Nim
+   let item = TodoItem(
+     owner: "John Mann",
+     summary: "Create a grocery list.",
+     details: none[string](),
+     priority: 0,
+     relatedTodoItemIds: @[])
+
+   let itemWithId = db.createTodoItem(item)
+   echo $itemWithId.id # generated in the database
+
+And to create it in code:
+
+.. code-block:: Nim
+   import uuids
+
+   let item = TodoItem(
+     id: genUUID(),
+     owner: "John Mann",
+     summary: "Create a grocery list.",
+     details: none[string](),
+     priority: 0,
+     relatedTodoItemIds: @[])
+
+   let itemInDb = db.createTodoItem(item)
+   echo $itemInDb.id # will be the same as what was provided
+
+.. _Option.isNone: https://nim-lang.org/docs/options.html#isNone,Option[T]
+.. _UUID.isZero: https://github.com/pragmagic/uuids/blob/8cb8720b567c6bcb261bd1c0f7491bdb5209ad06/uuids.nim#L72
+
+Supported Data Types
+--------------------
+
+The following Nim data types are supported by Fiber ORM:
+
+===============  ======================  =================
+Nim Type         Postgres Type           SQLite Type
+===============  ======================  =================
+`string`         `varchar`_
+`int`            `integer`_
+`float`          `double`_
+`bool`           `boolean`_
+`DateTime`_      `timestamp`_
+`seq[]`          `array`_
+`UUID`_          `uuid (pg)`_
+`Option`_        *allows* `NULL` [#f1]_
+`JsonNode`_      `jsonb`_
+===============  ======================  =================
+
+.. [#f1] Note that this implies that all `NULL`-able fields should be typed
+         as optional using `Option[fieldType]`. Conversely, any fields with
+         non-optional types should also be constrained to be `NOT NULL` in
+         the database schema.
+
+.. _DateTime: https://nim-lang.org/docs/times.html#DateTime
+.. _UUID: https://github.com/pragmagic/uuids
+.. _Option: https://nim-lang.org/docs/options.html#Option
+.. _JsonNode: https://nim-lang.org/docs/json.html#JsonNode
+
+.. _varchar: https://www.postgresql.org/docs/current/datatype-character.html
+.. _integer: https://www.postgresql.org/docs/current/datatype-numeric.html#DATATYPE-INT
+.. _double: https://www.postgresql.org/docs/current/datatype-numeric.html#DATATYPE-FLOAT
+.. _boolean: https://www.postgresql.org/docs/current/datatype-boolean.html
+.. _timestamp: https://www.postgresql.org/docs/current/datatype-datetime.html
+.. _array: https://www.postgresql.org/docs/current/arrays.html
+.. _uuid (pg): https://www.postgresql.org/docs/current/datatype-uuid.html
+.. _jsonb: https://www.postgresql.org/docs/current/datatype-json.html
+
+Database Object
+===============
+
+Many of the Fiber ORM macros expect a database object type to be passed.
+In the example above the `pool.DbConnPool`_ object is used as database
+object type (aliased as `TodoDB`). This is the intended usage pattern, but
+anything can be passed as the database object type so long as there is a
+defined `withConn` template that provides an injected `conn: DbConn` object
+to the provided statement body.
+
+For example, a valid database object implementation that opens a new
+connection for every request might look like this:
+
+.. code-block:: Nim
+   import std/db_postgres
+
+   type TodoDB* = object
+     connString: string
+
+   template withConn*(db: TodoDB, stmt: untyped): untyped =
+     let conn {.inject.} = open("", "", "", db.connString)
+     try: stmt
+     finally: close(conn)
+
+.. _pool.DbConnPool: fiber_orm/pool.html#DbConnPool

docs/README.html

@@ -0,0 +1,202 @@
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+<div class="document" id="documentId">
+  <div class="container">
+    <h1 class="title">README</h1>
+    
+<h1 id="fiber-orm">Fiber ORM</h1><p>Lightweight ORM supporting the <a class="reference external" href="https://nim-lang.org/docs/db_postgres.html">Postgres</a> and <a class="reference external" href="https://nim-lang.org/docs/db_sqlite.html">SQLite</a> databases in Nim. It supports a simple, opinionated model mapper to generate SQL queries based on Nim objects. It also includes a simple connection pooling implementation.</p>
+<p>Fiber ORM is not intended to be a 100% all-cases-covered ORM that handles every potential data access pattern one might wish to implement. It is best thought of as a collection of common SQL generation patterns. It is intended to cover 90% of the common queries and functions one might write when implementing an SQL-based access layer. It is expected that there may be a few more complicated queries that need to be implemented to handle specific access patterns.</p>
+<p>The simple mapping pattern provided by Fiber ORM also works well on top of databases that encapsulate data access logic in SQL with, for example, views.</p>
+
+<h2 id="basic-usage">Basic Usage</h2><p>Consider a simple TODO list application that keeps track of TODO items as well as time logged against those items. You might have a schema such as:</p>
+<pre class="listing">create extension if not exists &quot;pgcrypto&quot;;
+
+create table todo_items columns (
+  id uuid not null primary key default gen_random_uuid(),
+  owner varchar not null,
+  summary varchar not null,
+  details varchar default null,
+  priority integer not null default 0,
+  related_todo_item_ids uuid[] not null default '{}'
+);
+
+create table time_entries columns (
+  id uuid not null primary key default gen_random_uuid(),
+  todo_item_id uuid not null references todo_items (id) on delete cascade,
+  start timestamp with timezone not null default current_timestamp,
+  stop timestamp with timezone default null,
+);</pre><p>Models may be defined as:</p>
+<pre class="listing"><span class="Comment"># models.nim</span>
+<span class="Keyword">import</span> <span class="Identifier">std</span><span class="Operator">/</span><span class="Identifier">options</span><span class="Punctuation">,</span> <span class="Identifier">std</span><span class="Operator">/</span><span class="Identifier">times</span>
+<span class="Keyword">import</span> <span class="Identifier">uuids</span>
+
+<span class="Keyword">type</span>
+  <span class="Identifier">TodoItem</span><span class="Operator">*</span> <span class="Operator">=</span> <span class="Keyword">object</span>
+    <span class="Identifier">id</span><span class="Operator">*:</span> <span class="Identifier">UUID</span>
+    <span class="Identifier">owner</span><span class="Operator">*:</span> <span class="Identifier">string</span>
+    <span class="Identifier">summary</span><span class="Operator">*:</span> <span class="Identifier">string</span>
+    <span class="Identifier">details</span><span class="Operator">*:</span> <span class="Identifier">Option</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">]</span>
+    <span class="Identifier">priority</span><span class="Operator">*:</span> <span class="Identifier">int</span>
+    <span class="Identifier">relatedTodoItemIds</span><span class="Operator">*:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">UUID</span><span class="Punctuation">]</span>
+  
+  <span class="Identifier">TimeEntry</span><span class="Operator">*</span> <span class="Operator">=</span> <span class="Keyword">object</span>
+    <span class="Identifier">id</span><span class="Operator">*:</span> <span class="Identifier">UUID</span>
+    <span class="Identifier">todoItemId</span><span class="Operator">*:</span> <span class="Identifier">Option</span><span class="Punctuation">[</span><span class="Identifier">UUID</span><span class="Punctuation">]</span>
+    <span class="Identifier">start</span><span class="Operator">*:</span> <span class="Identifier">DateTime</span>
+    <span class="Identifier">stop</span><span class="Operator">*:</span> <span class="Identifier">Option</span><span class="Punctuation">[</span><span class="Identifier">DateTime</span><span class="Punctuation">]</span></pre><p>Using Fiber ORM we can generate a data access layer with:</p>
+<pre class="listing"><span class="Comment"># db.nim</span>
+<span class="Keyword">import</span> <span class="Identifier">fiber_orm</span>
+<span class="Keyword">import</span> <span class="Operator">./</span><span class="Identifier">models</span><span class="Operator">.</span><span class="Identifier">nim</span>
+
+<span class="Keyword">type</span> <span class="Identifier">TodoDB</span><span class="Operator">*</span> <span class="Operator">=</span> <span class="Identifier">DbConnPool</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">initDb</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">connString</span><span class="Punctuation">:</span> <span class="Identifier">string</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span> <span class="Operator">=</span>
+  <span class="Identifier">fiber_orm</span><span class="Operator">.</span><span class="Identifier">initPool</span><span class="Punctuation">(</span><span class="Identifier">connect</span> <span class="Operator">=</span>
+    <span class="Keyword">proc</span><span class="Punctuation">(</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">DbConn</span> <span class="Operator">=</span> <span class="Identifier">open</span><span class="Punctuation">(</span><span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="Identifier">connString</span><span class="Punctuation">)</span><span class="Punctuation">)</span>
+
+<span class="Identifier">generateProcsForModels</span><span class="Punctuation">(</span><span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Punctuation">[</span><span class="Identifier">TodoItem</span><span class="Punctuation">,</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">]</span><span class="Punctuation">)</span>
+
+<span class="Identifier">generateLookup</span><span class="Punctuation">(</span><span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">,</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="StringLit">&quot;todoItemId&quot;</span><span class="Punctuation">]</span><span class="Punctuation">)</span></pre><p>This will generate the following procedures:</p>
+<pre class="listing"><span class="Keyword">proc</span> <span class="Identifier">getTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">UUID</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">getAllTodoItems</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TodoItem</span><span class="Punctuation">]</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">createTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">updateTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">deleteTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">deleteTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">UUID</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">findTodoItemsWhere</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">whereClause</span><span class="Punctuation">:</span> <span class="Identifier">string</span><span class="Punctuation">,</span>
+  <span class="Identifier">values</span><span class="Punctuation">:</span> <span class="Identifier">varargs</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">,</span> <span class="Identifier">dbFormat</span><span class="Punctuation">]</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TodoItem</span><span class="Punctuation">]</span><span class="Punctuation">;</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">getTimeEntry</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">UUID</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">getAllTimeEntries</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TimeEntry</span><span class="Punctuation">]</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">createTimeEntry</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">updateTimeEntry</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">deleteTimeEntry</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">deleteTimeEntry</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">UUID</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">findTimeEntriesWhere</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">whereClause</span><span class="Punctuation">:</span> <span class="Identifier">string</span><span class="Punctuation">,</span>
+  <span class="Identifier">values</span><span class="Punctuation">:</span> <span class="Identifier">varargs</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">,</span> <span class="Identifier">dbFormat</span><span class="Punctuation">]</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TimeEntry</span><span class="Punctuation">]</span><span class="Punctuation">;</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">findTimeEntriesByTodoItemId</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">todoItemId</span><span class="Punctuation">:</span> <span class="Identifier">UUID</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TimeEntry</span><span class="Punctuation">]</span><span class="Punctuation">;</span></pre>
+<h2 id="objectminusrelational-modeling">Object-Relational Modeling</h2>
+<h3 id="model-class">Model Class</h3><p>Fiber ORM uses simple Nim <tt class="docutils literal"><span class="pre">object</span></tt>s and <tt class="docutils literal"><span class="pre">ref object</span></tt>s as model classes. Fiber ORM expects there to be one table for each model class.</p>
+
+<h4 id="name-mapping">Name Mapping</h4><p>Fiber ORM uses <tt class="docutils literal"><span class="pre">snake_case</span></tt> for database identifiers (column names, table names, etc.) and <tt class="docutils literal"><span class="pre">camelCase</span></tt> for Nim identifiers. We automatically convert model names to and from table names (<tt class="docutils literal"><span class="pre">TodoItem</span></tt> &lt;-&gt; <tt class="docutils literal"><span class="pre">todo_items</span></tt>), as well as column names (<tt class="docutils literal"><span class="pre">userId</span></tt> &lt;-&gt; <tt class="docutils literal"><span class="pre">user_id</span></tt>).</p>
+<p>Notice that table names are automatically pluralized from model class names. In the above example, you have:</p>
+<table border="1" class="docutils"><tr><th>Model Class</th><th>Table Name</th></tr>
+<tr><td>TodoItem</td><td>todo_items</td></tr>
+<tr><td>TimeEntry</td><td>time_entries</td></tr>
+</table><p>Because Nim is style-insensitive, you can generall refer to model classes and fields using <tt class="docutils literal"><span class="pre">snake_case</span></tt>, <tt class="docutils literal"><span class="pre">camelCase</span></tt>, or <tt class="docutils literal"><span class="pre">PascalCase</span></tt> in your code and expect Fiber ORM to be able to map the names to DB identifier names properly (though FiberORM will always use <tt class="docutils literal"><span class="pre">camelCase</span></tt> internally).</p>
+<p>See the <a class="reference external" href="fiber_orm/util.html#identNameToDb,string">identNameToDb</a>, <a class="reference external" href="fiber_orm/util.html#dbNameToIdent,string">dbNameToIdent</a>, <a class="reference external" href="fiber_orm/util.html#tableName,type">tableName</a> and <a class="reference external" href="fiber_orm/util.html#dbFormat,DateTime">dbFormat</a> procedures in the <a class="reference internal" href="#fiber">fiber</a> module for details.</p>
+
+<h4 id="id-field">ID Field</h4><p>Fiber ORM expects every model class to have a field named <tt class="docutils literal"><span class="pre">id</span></tt>, with a corresponding <tt class="docutils literal"><span class="pre">id</span></tt> column in the model table. This field must be either a <tt class="docutils literal"><span class="pre">string</span></tt>, <tt class="docutils literal"><span class="pre">integer</span></tt>, or <a class="reference external" href="https://github.com/pragmagic/uuids">UUID</a>.</p>
+<p>When creating a new record the <tt class="docutils literal"><span class="pre">id</span></tt> field will be omitted if it is empty (<a class="reference external" href="https://nim-lang.org/docs/options.html#isNone,Option[T]">Option.isNone</a>, <a class="reference external" href="https://github.com/pragmagic/uuids/blob/8cb8720b567c6bcb261bd1c0f7491bdb5209ad06/uuids.nim#L72">UUID.isZero</a>, value of <tt class="docutils literal"><span class="pre">0</span></tt>, or only whitespace).  This is intended to allow for cases like the example where the database may generate an ID when a new record is inserted. If a non-zero value is provided, the create call will include the <tt class="docutils literal"><span class="pre">id</span></tt> field in the <tt class="docutils literal"><span class="pre">INSERT</span></tt> query.</p>
+
+<h3 id="supported-data-types">Supported Data Types</h3><p>The following Nim data types are supported by Fiber ORM:</p>
+<table border="1" class="docutils"><tr><th>Nim Type</th><th>Postgres Type</th><th>SQLite Type</th></tr>
+<tr><td><tt class="docutils literal"><span class="pre">string</span></tt></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-character.html">varchar</a></td><td></td></tr>
+<tr><td><tt class="docutils literal"><span class="pre">int</span></tt></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-numeric.html#DATATYPE-INT">integer</a></td><td></td></tr>
+<tr><td><tt class="docutils literal"><span class="pre">float</span></tt></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-numeric.html#DATATYPE-FLOAT">double</a></td><td></td></tr>
+<tr><td><tt class="docutils literal"><span class="pre">bool</span></tt></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-boolean.html">boolean</a></td><td></td></tr>
+<tr><td><a class="reference external" href="https://nim-lang.org/docs/times.html#DateTime">DateTime</a></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-datetime.html">timestamp</a></td><td></td></tr>
+<tr><td><tt class="docutils literal"><span class="pre">seq[]</span></tt></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/arrays.html">array</a></td><td></td></tr>
+<tr><td><a class="reference external" href="https://github.com/pragmagic/uuids">UUID</a></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-uuid.html">uuid (pg)</a></td><td></td></tr>
+<tr><td><a class="reference external" href="https://nim-lang.org/docs/options.html#Option">Option</a></td><td><em>allows</em> <tt class="docutils literal"><span class="pre">NULL</span></tt> <sup><strong><a class="reference internal" href="#footnote-f1">[1]</a></strong></sup></td><td></td></tr>
+<tr><td><a class="reference external" href="https://nim-lang.org/docs/json.html#JsonNode">JsonNode</a></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-json.html">jsonb</a></td><td></td></tr>
+</table><hr class="footnote"><div class="footnote-group">
+<div id="footnote-f1"><div class="footnote-label"><sup><strong><a href="#footnote-f1">[1]</a></strong></sup></div> &ensp; Note that this implies that all <tt class="docutils literal"><span class="pre">NULL</span></tt>-able fields should be typed as optional using <tt class="docutils literal"><span class="pre">Option[fieldType]</span></tt>. Conversely, any fields with non-optional types should also be constrained to be <tt class="docutils literal"><span class="pre">NOT NULL</span></tt> in the database schema.
+</div>
+</div>
+
+<h2 id="database-object">Database Object</h2><p>Many of the Fiber ORM macros expect a database object type to be passed. In the example above the <a class="reference internal" href="#fiber">fiber</a> object is used as database object type (aliased as <tt class="docutils literal"><span class="pre">TodoDB</span></tt>). This is the intended usage pattern, but anything can be passed as the database object type so long as there is a defined <tt class="docutils literal"><span class="pre">withConn</span></tt> template that provides an injected <tt class="docutils literal"><span class="pre">conn: DbConn</span></tt> object to the provided statement body.</p>
+<p>For example, a valid database object implementation that opens a new connection for every request might look like this:</p>
+<pre class="listing"><span class="Keyword">import</span> <span class="Identifier">std</span><span class="Operator">/</span><span class="Identifier">db_postgres</span>
+
+<span class="Keyword">type</span> <span class="Identifier">TodoDB</span><span class="Operator">*</span> <span class="Operator">=</span> <span class="Keyword">object</span>
+  <span class="Identifier">connString</span><span class="Punctuation">:</span> <span class="Identifier">string</span>
+
+<span class="Keyword">template</span> <span class="Identifier">withConn</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">stmt</span><span class="Punctuation">:</span> <span class="Identifier">untyped</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">untyped</span> <span class="Operator">=</span>
+  <span class="Keyword">let</span> <span class="Identifier">conn</span> <span class="Punctuation">{</span><span class="Operator">.</span><span class="Identifier">inject</span><span class="Operator">.</span><span class="Punctuation">}</span> <span class="Operator">=</span> <span class="Identifier">open</span><span class="Punctuation">(</span><span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="Identifier">db</span><span class="Operator">.</span><span class="Identifier">connString</span><span class="Punctuation">)</span>
+  <span class="Keyword">try</span><span class="Punctuation">:</span> <span class="Identifier">stmt</span>
+  <span class="Keyword">finally</span><span class="Punctuation">:</span> <span class="Identifier">close</span><span class="Punctuation">(</span><span class="Identifier">conn</span><span class="Punctuation">)</span></pre>
+
+
+    <div class="row">
+      <div class="twelve-columns footer">
+        <span class="nim-sprite"></span>
+        <br/>
+        <small style="color: var(--hint);">Made with Nim. Generated: 2022-09-04 02:31:20 UTC</small>
+      </div>
+    </div>
+  </div>
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docs/fiber_orm.html

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+    <h1 class="title">src/fiber_orm</h1>
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+    &nbsp;&nbsp;&nbsp; <em>Dark Mode</em>
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+  <div id="global-links">
+    <ul class="simple">
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+      <a href="theindex.html">Index</a>
+    </li>
+    </ul>
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+  <div id="searchInputDiv">
+    Search: <input type="text" id="searchInput"
+      onkeyup="search()" />
+  </div>
+  <div>
+    Group by:
+    <select onchange="groupBy(this.value)">
+      <option value="section">Section</option>
+      <option value="type">Type</option>
+    </select>
+  </div>
+  <ul class="simple simple-toc" id="toc-list">
+<li><a class="reference" id="basic-usage_toc" href="#basic-usage">Basic Usage</a></li>
+<ul class="simple"><li><a class="reference" id="basic-usage-example-db-schema_toc" href="#basic-usage-example-db-schema">Example DB Schema</a></li>
+<li><a class="reference" id="basic-usage-example-model-definitions_toc" href="#basic-usage-example-model-definitions">Example Model Definitions</a></li>
+<li><a class="reference" id="basic-usage-example-fiber-orm-usage_toc" href="#basic-usage-example-fiber-orm-usage">Example Fiber ORM Usage</a></li>
+</ul><li><a class="reference" id="objectminusrelational-modeling_toc" href="#objectminusrelational-modeling">Object-Relational Modeling</a></li>
+<ul class="simple"><li><a class="reference" id="objectminusrelational-modeling-model-class_toc" href="#objectminusrelational-modeling-model-class">Model Class</a></li>
+<ul class="simple"><li><a class="reference" id="model-class-name-mapping_toc" href="#model-class-name-mapping">Name Mapping</a></li>
+<li><a class="reference" id="model-class-id-field_toc" href="#model-class-id-field">ID Field</a></li>
+</ul><li><a class="reference" id="objectminusrelational-modeling-supported-data-types_toc" href="#objectminusrelational-modeling-supported-data-types">Supported Data Types</a></li>
+</ul><li><a class="reference" id="database-object_toc" href="#database-object">Database Object</a></li>
+<li><a class="reference" id="see-also_toc" href="#see-also">See Also</a></li>
+<li>
+  <a class="reference reference-toplevel" href="#6" id="56">Imports</a>
+  <ul class="simple simple-toc-section">
+    
+  </ul>
+</li>
+<li>
+  <a class="reference reference-toplevel" href="#7" id="57">Types</a>
+  <ul class="simple simple-toc-section">
+      <li><a class="reference" href="#NotFoundError"
+    title="NotFoundError = object of CatchableError">NotFoundError</a></li>
+
+  </ul>
+</li>
+<li>
+  <a class="reference reference-toplevel" href="#12" id="62">Procs</a>
+  <ul class="simple simple-toc-section">
+      <ul class="simple nested-toc-section">createRecord
+      <li><a class="reference" href="#createRecord%2CDbConn%2CT"
+    title="createRecord[T](db: DbConn; rec: T): T">createRecord[T](db: DbConn; rec: T): T</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">deleteRecord
+      <li><a class="reference" href="#deleteRecord%2CDbConn%2CT"
+    title="deleteRecord[T](db: DbConn; rec: T): bool">deleteRecord[T](db: DbConn; rec: T): bool</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">initPool
+      <li><a class="reference" href="#initPool%2Cproc%29%2Cint%2Cstring"
+    title="initPool(connect: proc (): DbConn; poolSize = 10; hardCap = false;
+         healthCheckQuery = &quot;SELECT \'true\' AS alive&quot;): DbConnPool">initPool(connect: proc (): DbConn; poolSize = 10; hardCap = false;
+         healthCheckQuery = &quot;SELECT \'true\' AS alive&quot;): DbConnPool</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">updateRecord
+      <li><a class="reference" href="#updateRecord%2CDbConn%2CT"
+    title="updateRecord[T](db: DbConn; rec: T): bool">updateRecord[T](db: DbConn; rec: T): bool</a></li>
+
+  </ul>
+
+  </ul>
+</li>
+<li>
+  <a class="reference reference-toplevel" href="#17" id="67">Macros</a>
+  <ul class="simple simple-toc-section">
+      <ul class="simple nested-toc-section">generateLookup
+      <li><a class="reference" href="#generateLookup.m%2Ctype%2Ctype%2Cseq%5Bstring%5D"
+    title="generateLookup(dbType: type; modelType: type; fields: seq[string]): untyped">generateLookup(dbType: type; modelType: type; fields: seq[string]): untyped</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">generateProcsForFieldLookups
+      <li><a class="reference" href="#generateProcsForFieldLookups.m%2Ctype%2CopenArray%5Btuple%5Btype%2Cseq%5Bstring%5D%5D%5D"
+    title="generateProcsForFieldLookups(dbType: type; modelsAndFields: openArray[
+    tuple[t: type, fields: seq[string]]]): untyped">generateProcsForFieldLookups(dbType: type; modelsAndFields: openArray[
+    tuple[t: type, fields: seq[string]]]): untyped</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">generateProcsForModels
+      <li><a class="reference" href="#generateProcsForModels.m%2Ctype%2CopenArray%5Btype%5D"
+    title="generateProcsForModels(dbType: type; modelTypes: openArray[type]): untyped">generateProcsForModels(dbType: type; modelTypes: openArray[type]): untyped</a></li>
+
+  </ul>
+
+  </ul>
+</li>
+<li>
+  <a class="reference reference-toplevel" href="#18" id="68">Templates</a>
+  <ul class="simple simple-toc-section">
+      <ul class="simple nested-toc-section">deleteRecord
+      <li><a class="reference" href="#deleteRecord.t%2CDbConn%2Ctype%2Ctyped"
+    title="deleteRecord(db: DbConn; modelType: type; id: typed): untyped">deleteRecord(db: DbConn; modelType: type; id: typed): untyped</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">findRecordsBy
+      <li><a class="reference" href="#findRecordsBy.t%2CDbConn%2Ctype%2Cseq%5Btuple%5Bstring%2Cstring%5D%5D"
+    title="findRecordsBy(db: DbConn; modelType: type;
+              lookups: seq[tuple[field: string, value: string]]): untyped">findRecordsBy(db: DbConn; modelType: type;
+              lookups: seq[tuple[field: string, value: string]]): untyped</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">findRecordsWhere
+      <li><a class="reference" href="#findRecordsWhere.t%2CDbConn%2Ctype%2Cstring%2Cvarargs%5Bstring%2CdbFormat%5D"
+    title="findRecordsWhere(db: DbConn; modelType: type; whereClause: string;
+                 values: varargs[string, dbFormat]): untyped">findRecordsWhere(db: DbConn; modelType: type; whereClause: string;
+                 values: varargs[string, dbFormat]): untyped</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">getAllRecords
+      <li><a class="reference" href="#getAllRecords.t%2CDbConn%2Ctype"
+    title="getAllRecords(db: DbConn; modelType: type): untyped">getAllRecords(db: DbConn; modelType: type): untyped</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">getRecord
+      <li><a class="reference" href="#getRecord.t%2CDbConn%2Ctype%2Ctyped"
+    title="getRecord(db: DbConn; modelType: type; id: typed): untyped">getRecord(db: DbConn; modelType: type; id: typed): untyped</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">inTransaction
+      <li><a class="reference" href="#inTransaction.t%2CDbConnPool%2Cuntyped"
+    title="inTransaction(db: DbConnPool; body: untyped)">inTransaction(db: DbConnPool; body: untyped)</a></li>
+
+  </ul>
+
+  </ul>
+</li>
+<li>
+  <a class="reference reference-toplevel" href="#19" id="69">Exports</a>
+  <ul class="simple simple-toc-section">
+    
+  </ul>
+</li>
+
+</ul>
+
+  </div>
+  &nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L1"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L1" class="link-seesrc" target="_blank" >Edit</a>
+
+  <div class="nine columns" id="content">
+  <div id="tocRoot"></div>
+  
+  <p class="module-desc"><p>Lightweight ORM supporting the <a class="reference external" href="https://nim-lang.org/docs/db_postgres.html">Postgres</a> and <a class="reference external" href="https://nim-lang.org/docs/db_sqlite.html">SQLite</a> databases in Nim. It supports a simple, opinionated model mapper to generate SQL queries based on Nim objects. It also includes a simple connection pooling implementation.</p>
+<p>Fiber ORM is not intended to be a 100% all-cases-covered ORM that handles every potential data access pattern one might wish to implement. It is best thought of as a collection of common SQL generation patterns. It is intended to cover 90% of the common queries and functions one might write when implementing an SQL-based access layer. It is expected that there may be a few more complicated queries that need to be implemented to handle specific access patterns.</p>
+<p>The simple mapping pattern provided by Fiber ORM also works well on top of databases that encapsulate data access logic in SQL with, for example, views.</p>
+
+<h1><a class="toc-backref" id="basic-usage" href="#basic-usage">Basic Usage</a></h1><p>Consider a simple TODO list application that keeps track of TODO items as well as time logged against those items.</p>
+
+<h2><a class="toc-backref" id="basic-usage-example-db-schema" href="#basic-usage-example-db-schema">Example DB Schema</a></h2><p>You might have a schema such as:</p>
+<pre class="listing">create extension if not exists &quot;pgcrypto&quot;;
+
+create table todo_items columns (
+  id uuid not null primary key default gen_random_uuid(),
+  owner varchar not null,
+  summary varchar not null,
+  details varchar default null,
+  priority integer not null default 0,
+  related_todo_item_ids uuid[] not null default '{}'
+);
+
+create table time_entries columns (
+  id uuid not null primary key default gen_random_uuid(),
+  todo_item_id uuid not null references todo_items (id) on delete cascade,
+  start timestamp with timezone not null default current_timestamp,
+  stop timestamp with timezone default null,
+);</pre>
+<h2><a class="toc-backref" id="basic-usage-example-model-definitions" href="#basic-usage-example-model-definitions">Example Model Definitions</a></h2><p>Models may be defined as:</p>
+<pre class="listing"><span class="Comment"># models.nim</span>
+<span class="Keyword">import</span> <span class="Identifier">std</span><span class="Operator">/</span><span class="Identifier">options</span><span class="Punctuation">,</span> <span class="Identifier">std</span><span class="Operator">/</span><span class="Identifier">times</span>
+<span class="Keyword">import</span> <span class="Identifier">uuids</span>
+
+<span class="Keyword">type</span>
+  <span class="Identifier">TodoItem</span><span class="Operator">*</span> <span class="Operator">=</span> <span class="Keyword">object</span>
+    <span class="Identifier">id</span><span class="Operator">*:</span> <span class="Identifier">UUID</span>
+    <span class="Identifier">owner</span><span class="Operator">*:</span> <span class="Identifier">string</span>
+    <span class="Identifier">summary</span><span class="Operator">*:</span> <span class="Identifier">string</span>
+    <span class="Identifier">details</span><span class="Operator">*:</span> <span class="Identifier">Option</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">]</span>
+    <span class="Identifier">priority</span><span class="Operator">*:</span> <span class="Identifier">int</span>
+    <span class="Identifier">relatedTodoItemIds</span><span class="Operator">*:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">UUID</span><span class="Punctuation">]</span>
+  
+  <span class="Identifier">TimeEntry</span><span class="Operator">*</span> <span class="Operator">=</span> <span class="Keyword">object</span>
+    <span class="Identifier">id</span><span class="Operator">*:</span> <span class="Identifier">UUID</span>
+    <span class="Identifier">todoItemId</span><span class="Operator">*:</span> <span class="Identifier">Option</span><span class="Punctuation">[</span><span class="Identifier">UUID</span><span class="Punctuation">]</span>
+    <span class="Identifier">start</span><span class="Operator">*:</span> <span class="Identifier">DateTime</span>
+    <span class="Identifier">stop</span><span class="Operator">*:</span> <span class="Identifier">Option</span><span class="Punctuation">[</span><span class="Identifier">DateTime</span><span class="Punctuation">]</span></pre>
+<h2><a class="toc-backref" id="basic-usage-example-fiber-orm-usage" href="#basic-usage-example-fiber-orm-usage">Example Fiber ORM Usage</a></h2><p>Using Fiber ORM we can generate a data access layer with:</p>
+<pre class="listing"><span class="Comment"># db.nim</span>
+<span class="Keyword">import</span> <span class="Identifier">fiber_orm</span>
+<span class="Keyword">import</span> <span class="Operator">./</span><span class="Identifier">models</span><span class="Operator">.</span><span class="Identifier">nim</span>
+
+<span class="Keyword">type</span> <span class="Identifier">TodoDB</span><span class="Operator">*</span> <span class="Operator">=</span> <span class="Identifier">DbConnPool</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">initDb</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">connString</span><span class="Punctuation">:</span> <span class="Identifier">string</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span> <span class="Operator">=</span>
+  <span class="Identifier">result</span> <span class="Operator">=</span> <span class="Identifier">fiber_orm</span><span class="Operator">.</span><span class="Identifier">initPool</span><span class="Punctuation">(</span>
+    <span class="Identifier">connect</span> <span class="Operator">=</span> <span class="Keyword">proc</span><span class="Punctuation">(</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">DbConn</span> <span class="Operator">=</span> <span class="Identifier">open</span><span class="Punctuation">(</span><span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="Identifier">connString</span><span class="Punctuation">)</span><span class="Punctuation">,</span>
+    <span class="Identifier">poolSize</span> <span class="Operator">=</span> <span class="DecNumber">20</span><span class="Punctuation">,</span>
+    <span class="Identifier">hardCap</span> <span class="Operator">=</span> <span class="Identifier">false</span><span class="Punctuation">)</span>
+
+
+<span class="Identifier">generateProcsForModels</span><span class="Punctuation">(</span><span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Punctuation">[</span><span class="Identifier">TodoItem</span><span class="Punctuation">,</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">]</span><span class="Punctuation">)</span>
+
+<span class="Identifier">generateLookup</span><span class="Punctuation">(</span><span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">,</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="StringLit">&quot;todoItemId&quot;</span><span class="Punctuation">]</span><span class="Punctuation">)</span></pre><p>This will generate the following procedures:</p>
+<pre class="listing"><span class="Keyword">proc</span> <span class="Identifier">getTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">UUID</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">getAllTodoItems</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TodoItem</span><span class="Punctuation">]</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">createTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">updateTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">deleteTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">deleteTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">UUID</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">findTodoItemsWhere</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">whereClause</span><span class="Punctuation">:</span> <span class="Identifier">string</span><span class="Punctuation">,</span>
+  <span class="Identifier">values</span><span class="Punctuation">:</span> <span class="Identifier">varargs</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">,</span> <span class="Identifier">dbFormat</span><span class="Punctuation">]</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TodoItem</span><span class="Punctuation">]</span><span class="Punctuation">;</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">getTimeEntry</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">UUID</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">getAllTimeEntries</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TimeEntry</span><span class="Punctuation">]</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">createTimeEntry</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">updateTimeEntry</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">deleteTimeEntry</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">deleteTimeEntry</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">UUID</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">findTimeEntriesWhere</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">whereClause</span><span class="Punctuation">:</span> <span class="Identifier">string</span><span class="Punctuation">,</span>
+  <span class="Identifier">values</span><span class="Punctuation">:</span> <span class="Identifier">varargs</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">,</span> <span class="Identifier">dbFormat</span><span class="Punctuation">]</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TimeEntry</span><span class="Punctuation">]</span><span class="Punctuation">;</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">findTimeEntriesByTodoItemId</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">todoItemId</span><span class="Punctuation">:</span> <span class="Identifier">UUID</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TimeEntry</span><span class="Punctuation">]</span><span class="Punctuation">;</span></pre>
+<h1><a class="toc-backref" id="objectminusrelational-modeling" href="#objectminusrelational-modeling">Object-Relational Modeling</a></h1>
+<h2><a class="toc-backref" id="objectminusrelational-modeling-model-class" href="#objectminusrelational-modeling-model-class">Model Class</a></h2><p>Fiber ORM uses simple Nim <tt class="docutils literal"><span class="pre"><span class="Keyword">object</span></span></tt>s and <tt class="docutils literal"><span class="pre"><span class="Keyword">ref</span> <span class="Keyword">object</span></span></tt>s as model classes. Fiber ORM expects there to be one table for each model class.</p>
+
+<h3><a class="toc-backref" id="model-class-name-mapping" href="#model-class-name-mapping">Name Mapping</a></h3><p>Fiber ORM uses <tt class="docutils literal"><span class="pre"><span class="Identifier">snake_case</span></span></tt> for database identifiers (column names, table names, etc.) and <tt class="docutils literal"><span class="pre"><span class="Identifier">camelCase</span></span></tt> for Nim identifiers. We automatically convert model names to and from table names (<tt class="docutils literal"><span class="pre"><span class="Identifier">TodoItem</span></span></tt> &lt;-&gt; <tt class="docutils literal"><span class="pre"><span class="Identifier">todo_items</span></span></tt>), as well as column names (<tt class="docutils literal"><span class="pre"><span class="Identifier">userId</span></span></tt> &lt;-&gt; <tt class="docutils literal"><span class="pre"><span class="Identifier">user_id</span></span></tt>).</p>
+<p>Notice that table names are automatically pluralized from model class names. In the above example, you have:</p>
+<table border="1" class="docutils"><tr><th>Model Class</th><th>Table Name</th></tr>
+<tr><td>TodoItem</td><td>todo_items</td></tr>
+<tr><td>TimeEntry</td><td>time_entries</td></tr>
+</table><p>Because Nim is style-insensitive, you can generall refer to model classes and fields using <tt class="docutils literal"><span class="pre"><span class="Identifier">snake_case</span></span></tt>, <tt class="docutils literal"><span class="pre"><span class="Identifier">camelCase</span></span></tt>, or <tt class="docutils literal"><span class="pre"><span class="Identifier">PascalCase</span></span></tt> in your code and expect Fiber ORM to be able to map the names to DB identifier names properly (though FiberORM will always use <tt class="docutils literal"><span class="pre"><span class="Identifier">camelCase</span></span></tt> internally).</p>
+<p>See the <a class="reference external" href="fiber_orm/util.html#identNameToDb,string">identNameToDb</a>, <a class="reference external" href="fiber_orm/util.html#dbNameToIdent,string">dbNameToIdent</a>, <a class="reference external" href="fiber_orm/util.html#tableName,type">tableName</a> and <a class="reference external" href="fiber_orm/util.html#dbFormat,DateTime">dbFormat</a> procedures in the <a class="reference internal" href="#fiber">fiber</a> module for details.</p>
+
+<h3><a class="toc-backref" id="model-class-id-field" href="#model-class-id-field">ID Field</a></h3><p>Fiber ORM expects every model class to have a field named <tt class="docutils literal"><span class="pre"><span class="Identifier">id</span></span></tt>, with a corresponding <tt class="docutils literal"><span class="pre"><span class="Identifier">id</span></span></tt> column in the model table. This field must be either a <tt class="docutils literal"><span class="pre"><span class="Identifier">string</span></span></tt>, <tt class="docutils literal"><span class="pre"><span class="Identifier">integer</span></span></tt>, or <a class="reference external" href="https://github.com/pragmagic/uuids">UUID</a>.</p>
+<p>When creating a new record the <tt class="docutils literal"><span class="pre"><span class="Identifier">id</span></span></tt> field will be omitted if it is empty (<a class="reference external" href="https://nim-lang.org/docs/options.html#isNone,Option[T]">Option.isNone</a>, <a class="reference external" href="https://github.com/pragmagic/uuids/blob/8cb8720b567c6bcb261bd1c0f7491bdb5209ad06/uuids.nim#L72">UUID.isZero</a>, value of <tt class="docutils literal"><span class="pre"><span class="DecNumber">0</span></span></tt>, or only whitespace).  This is intended to allow for cases like the example where the database may generate an ID when a new record is inserted. If a non-zero value is provided, the create call will include the <tt class="docutils literal"><span class="pre"><span class="Identifier">id</span></span></tt> field in the <tt class="docutils literal"><span class="pre"><span class="Identifier">INSERT</span></span></tt> query.</p>
+<p>For example, to allow the database to create the id:</p>
+<pre class="listing"><span class="Keyword">let</span> <span class="Identifier">item</span> <span class="Operator">=</span> <span class="Identifier">TodoItem</span><span class="Punctuation">(</span>
+  <span class="Identifier">owner</span><span class="Punctuation">:</span> <span class="StringLit">&quot;John Mann&quot;</span><span class="Punctuation">,</span>
+  <span class="Identifier">summary</span><span class="Punctuation">:</span> <span class="StringLit">&quot;Create a grocery list.&quot;</span><span class="Punctuation">,</span>
+  <span class="Identifier">details</span><span class="Punctuation">:</span> <span class="Identifier">none</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">]</span><span class="Punctuation">(</span><span class="Punctuation">)</span><span class="Punctuation">,</span>
+  <span class="Identifier">priority</span><span class="Punctuation">:</span> <span class="DecNumber">0</span><span class="Punctuation">,</span>
+  <span class="Identifier">relatedTodoItemIds</span><span class="Punctuation">:</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="Punctuation">]</span><span class="Punctuation">)</span>
+
+<span class="Keyword">let</span> <span class="Identifier">itemWithId</span> <span class="Operator">=</span> <span class="Identifier">db</span><span class="Operator">.</span><span class="Identifier">createTodoItem</span><span class="Punctuation">(</span><span class="Identifier">item</span><span class="Punctuation">)</span>
+<span class="Identifier">echo</span> <span class="Operator">$</span><span class="Identifier">itemWithId</span><span class="Operator">.</span><span class="Identifier">id</span> <span class="Comment"># generated in the database</span></pre><p>And to create it in code:</p>
+<pre class="listing"><span class="Keyword">import</span> <span class="Identifier">uuids</span>
+
+<span class="Keyword">let</span> <span class="Identifier">item</span> <span class="Operator">=</span> <span class="Identifier">TodoItem</span><span class="Punctuation">(</span>
+  <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">genUUID</span><span class="Punctuation">(</span><span class="Punctuation">)</span><span class="Punctuation">,</span>
+  <span class="Identifier">owner</span><span class="Punctuation">:</span> <span class="StringLit">&quot;John Mann&quot;</span><span class="Punctuation">,</span>
+  <span class="Identifier">summary</span><span class="Punctuation">:</span> <span class="StringLit">&quot;Create a grocery list.&quot;</span><span class="Punctuation">,</span>
+  <span class="Identifier">details</span><span class="Punctuation">:</span> <span class="Identifier">none</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">]</span><span class="Punctuation">(</span><span class="Punctuation">)</span><span class="Punctuation">,</span>
+  <span class="Identifier">priority</span><span class="Punctuation">:</span> <span class="DecNumber">0</span><span class="Punctuation">,</span>
+  <span class="Identifier">relatedTodoItemIds</span><span class="Punctuation">:</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="Punctuation">]</span><span class="Punctuation">)</span>
+
+<span class="Keyword">let</span> <span class="Identifier">itemInDb</span> <span class="Operator">=</span> <span class="Identifier">db</span><span class="Operator">.</span><span class="Identifier">createTodoItem</span><span class="Punctuation">(</span><span class="Identifier">item</span><span class="Punctuation">)</span>
+<span class="Identifier">echo</span> <span class="Operator">$</span><span class="Identifier">itemInDb</span><span class="Operator">.</span><span class="Identifier">id</span> <span class="Comment"># will be the same as what was provided</span></pre>
+<h2><a class="toc-backref" id="objectminusrelational-modeling-supported-data-types" href="#objectminusrelational-modeling-supported-data-types">Supported Data Types</a></h2><p>The following Nim data types are supported by Fiber ORM:</p>
+<table border="1" class="docutils"><tr><th>Nim Type</th><th>Postgres Type</th><th>SQLite Type</th></tr>
+<tr><td><tt class="docutils literal"><span class="pre"><span class="Identifier">string</span></span></tt></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-character.html">varchar</a></td><td></td></tr>
+<tr><td><tt class="docutils literal"><span class="pre"><span class="Identifier">int</span></span></tt></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-numeric.html#DATATYPE-INT">integer</a></td><td></td></tr>
+<tr><td><tt class="docutils literal"><span class="pre"><span class="Identifier">float</span></span></tt></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-numeric.html#DATATYPE-FLOAT">double</a></td><td></td></tr>
+<tr><td><tt class="docutils literal"><span class="pre"><span class="Identifier">bool</span></span></tt></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-boolean.html">boolean</a></td><td></td></tr>
+<tr><td><a class="reference external" href="https://nim-lang.org/docs/times.html#DateTime">DateTime</a></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-datetime.html">timestamp</a></td><td></td></tr>
+<tr><td><tt class="docutils literal"><span class="pre"><span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Punctuation">]</span></span></tt></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/arrays.html">array</a></td><td></td></tr>
+<tr><td><a class="reference external" href="https://github.com/pragmagic/uuids">UUID</a></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-uuid.html">uuid (pg)</a></td><td></td></tr>
+<tr><td><a class="reference external" href="https://nim-lang.org/docs/options.html#Option">Option</a></td><td><em>allows</em> <tt class="docutils literal"><span class="pre"><span class="Identifier">NULL</span></span></tt> <sup><strong><a class="reference internal" href="#footnote-f1">[1]</a></strong></sup></td><td></td></tr>
+<tr><td><a class="reference external" href="https://nim-lang.org/docs/json.html#JsonNode">JsonNode</a></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-json.html">jsonb</a></td><td></td></tr>
+</table><hr class="footnote"><div class="footnote-group">
+<div id="footnote-f1"><div class="footnote-label"><sup><strong><a href="#footnote-f1">[1]</a></strong></sup></div> &ensp; Note that this implies that all <tt class="docutils literal"><span class="pre"><span class="Identifier">NULL</span></span></tt>-able fields should be typed as optional using <tt class="docutils literal"><span class="pre"><span class="Identifier">Option</span><span class="Punctuation">[</span><span class="Identifier">fieldType</span><span class="Punctuation">]</span></span></tt>. Conversely, any fields with non-optional types should also be constrained to be <tt class="docutils literal"><span class="pre"><span class="Keyword">NOT</span> <span class="Identifier">NULL</span></span></tt> in the database schema.
+</div>
+</div>
+
+<h1><a class="toc-backref" id="database-object" href="#database-object">Database Object</a></h1><p>Many of the Fiber ORM macros expect a database object type to be passed. In the example above the <a class="reference external" href="fiber_orm/pool.html#DbConnPool">pool.DbConnPool</a> object is used as database object type (aliased as <tt class="docutils literal"><span class="pre"><span class="Identifier">TodoDB</span></span></tt>). This is the intended usage pattern, but anything can be passed as the database object type so long as there is a defined <tt class="docutils literal"><span class="pre"><span class="Identifier">withConn</span></span></tt> template that provides an injected <tt class="docutils literal"><span class="pre"><span class="Identifier">conn</span><span class="Punctuation">:</span> <span class="Identifier">DbConn</span></span></tt> object to the provided statement body.</p>
+<p>For example, a valid database object implementation that opens a new connection for every request might look like this:</p>
+<pre class="listing"><span class="Keyword">import</span> <span class="Identifier">std</span><span class="Operator">/</span><span class="Identifier">db_postgres</span>
+
+<span class="Keyword">type</span> <span class="Identifier">TodoDB</span><span class="Operator">*</span> <span class="Operator">=</span> <span class="Keyword">object</span>
+  <span class="Identifier">connString</span><span class="Punctuation">:</span> <span class="Identifier">string</span>
+
+<span class="Keyword">template</span> <span class="Identifier">withConn</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">stmt</span><span class="Punctuation">:</span> <span class="Identifier">untyped</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">untyped</span> <span class="Operator">=</span>
+  <span class="Keyword">let</span> <span class="Identifier">conn</span> <span class="Punctuation">{</span><span class="Operator">.</span><span class="Identifier">inject</span><span class="Operator">.</span><span class="Punctuation">}</span> <span class="Operator">=</span> <span class="Identifier">open</span><span class="Punctuation">(</span><span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="Identifier">db</span><span class="Operator">.</span><span class="Identifier">connString</span><span class="Punctuation">)</span>
+  <span class="Keyword">try</span><span class="Punctuation">:</span> <span class="Identifier">stmt</span>
+  <span class="Keyword">finally</span><span class="Punctuation">:</span> <span class="Identifier">close</span><span class="Punctuation">(</span><span class="Identifier">conn</span><span class="Punctuation">)</span></pre>
+<h1><a class="toc-backref" id="see-also" href="#see-also">See Also</a></h1><p><a class="reference external" href="fiber_orm/pool.html">fiber_orm/pool</a></p>
+</p>
+  <div class="section" id="6">
+<h1><a class="toc-backref" href="#6">Imports</a></h1>
+<dl class="item">
+<a class="reference external" href="fiber_orm/pool.html">fiber_orm/pool</a>, <a class="reference external" href="fiber_orm/util.html">fiber_orm/util</a>
+</dl></div>
+<div class="section" id="7">
+<h1><a class="toc-backref" href="#7">Types</a></h1>
+<dl class="item">
+<div id="NotFoundError">
+<dt><pre><a href="fiber_orm.html#NotFoundError"><span class="Identifier">NotFoundError</span></a> <span class="Other">=</span> <span class="Keyword">object</span> <span class="Keyword">of</span> <span class="Identifier">CatchableError</span></pre></dt>
+<dd>
+
+
+ Error type raised when no record matches a given ID
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L299"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L299" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+
+</dl></div>
+<div class="section" id="12">
+<h1><a class="toc-backref" href="#12">Procs</a></h1>
+<dl class="item">
+<div id="createRecord,DbConn,T">
+<dt><pre><span class="Keyword">proc</span> <a href="#createRecord%2CDbConn%2CT"><span class="Identifier">createRecord</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">rec</span><span class="Other">:</span> <span class="Identifier">T</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">T</span></pre></dt>
+<dd>
+
+<p>Create a new record. <tt class="docutils literal"><span class="pre"><span class="Identifier">rec</span></span></tt> is expected to be a <a class="reference external" href="#objectminusrelational-modeling-model-class">model class</a>. The <tt class="docutils literal"><span class="pre"><span class="Identifier">id</span></span></tt> field is only set if it is non-empty (see <a class="reference external" href="#model-class-id-field">ID Field</a> for details).</p>
+<p>Returns the newly created record.</p>
+
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L314"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L314" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="deleteRecord,DbConn,T">
+<dt><pre><span class="Keyword">proc</span> <a href="#deleteRecord%2CDbConn%2CT"><span class="Identifier">deleteRecord</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">rec</span><span class="Other">:</span> <span class="Identifier">T</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span></pre></dt>
+<dd>
+
+Delete a record by <a class="reference external" href="#model-class-id-field">id</a>.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L359"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L359" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="initPool,proc),int,string">
+<dt><pre><span class="Keyword">proc</span> <a href="#initPool%2Cproc%29%2Cint%2Cstring"><span class="Identifier">initPool</span></a><span class="Other">(</span><span class="Identifier">connect</span><span class="Other">:</span> <span class="Keyword">proc</span> <span class="Other">(</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">poolSize</span> <span class="Other">=</span> <span class="DecNumber">10</span><span class="Other">;</span> <span class="Identifier">hardCap</span> <span class="Other">=</span> <span class="Identifier">false</span><span class="Other">;</span>
+              <span class="Identifier">healthCheckQuery</span> <span class="Other">=</span> <span class="StringLit">&quot;SELECT \'true\' AS alive&quot;</span><span class="Other">)</span><span class="Other">:</span> <a href="fiber_orm/pool.html#DbConnPool"><span class="Identifier">DbConnPool</span></a> {.
+    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">Exception</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">RootEffect</span><span class="Other">]</span></span>.}</pre></dt>
+<dd>
+
+Initialize a new DbConnPool. See the <tt class="docutils literal"><span class="pre"><span class="Identifier">initDb</span></span></tt> procedure in the <a class="reference external" href="#basic-usage-example-fiber-orm-usage">Example Fiber ORM Usage</a> for an example<ul class="simple"><li><tt class="docutils literal"><span class="pre"><span class="Identifier">connect</span></span></tt> must be a factory which creates a new <tt class="docutils literal"><span class="pre"><span class="Identifier">DbConn</span></span></tt>.</li>
+<li><tt class="docutils literal"><span class="pre"><span class="Identifier">poolSize</span></span></tt> sets the desired capacity of the connection pool.</li>
+<li><p><tt class="docutils literal"><span class="pre"><span class="Identifier">hardCap</span></span></tt> defaults to <tt class="docutils literal"><span class="pre"><span class="Identifier">false</span></span></tt>. When <tt class="docutils literal"><span class="pre"><span class="Identifier">false</span></span></tt>, the pool can grow beyond the configured capacity, but will release connections down to the its capacity (no less than <tt class="docutils literal"><span class="pre"><span class="Identifier">poolSize</span></span></tt>).</p>
+<p>When <tt class="docutils literal"><span class="pre"><span class="Identifier">true</span></span></tt> the pool will not create more than its configured capacity. It a connection is requested, none are free, and the pool is at capacity, this will result in an Error being raised.</p>
+</li>
+<li><tt class="docutils literal"><span class="pre"><span class="Identifier">healthCheckQuery</span></span></tt> should be a simple and fast SQL query that the pool can use to test the liveliness of pooled connections.</li>
+</ul>
+
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L539"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L539" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="updateRecord,DbConn,T">
+<dt><pre><span class="Keyword">proc</span> <a href="#updateRecord%2CDbConn%2CT"><span class="Identifier">updateRecord</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">rec</span><span class="Other">:</span> <span class="Identifier">T</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span></pre></dt>
+<dd>
+
+Update a record by id. <tt class="docutils literal"><span class="pre"><span class="Identifier">rec</span></span></tt> is expected to be a <a class="reference external" href="#objectminusrelational-modeling-model-class">model class</a>.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L337"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L337" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+
+</dl></div>
+<div class="section" id="17">
+<h1><a class="toc-backref" href="#17">Macros</a></h1>
+<dl class="item">
+<div id="generateLookup.m,type,type,seq[string]">
+<dt><pre><span class="Keyword">macro</span> <a href="#generateLookup.m%2Ctype%2Ctype%2Cseq%5Bstring%5D"><span class="Identifier">generateLookup</span></a><span class="Other">(</span><span class="Identifier">dbType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">;</span> <span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">;</span> <span class="Identifier">fields</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+Create a lookup procedure for a given set of field names. For example, given the TODO database demostrated above,<pre class="listing"><span class="Identifier">generateLookup</span><span class="Punctuation">(</span><span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">TodoItem</span><span class="Punctuation">,</span> <span class="Punctuation">[</span><span class="StringLit">&quot;owner&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;priority&quot;</span><span class="Punctuation">]</span><span class="Punctuation">)</span></pre><p>will generate the following procedure:</p>
+<pre class="listing"><span class="Keyword">proc</span> <span class="Identifier">findTodoItemsByOwnerAndPriority</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">SampleDB</span><span class="Punctuation">,</span>
+  <span class="Identifier">owner</span><span class="Punctuation">:</span> <span class="Identifier">string</span><span class="Punctuation">,</span> <span class="Identifier">priority</span><span class="Punctuation">:</span> <span class="Identifier">int</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TodoItem</span><span class="Punctuation">]</span></pre>
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L468"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L468" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="generateProcsForFieldLookups.m,type,openArray[tuple[type,seq[string]]]">
+<dt><pre><span class="Keyword">macro</span> <a href="#generateProcsForFieldLookups.m%2Ctype%2CopenArray%5Btuple%5Btype%2Cseq%5Bstring%5D%5D%5D"><span class="Identifier">generateProcsForFieldLookups</span></a><span class="Other">(</span><span class="Identifier">dbType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">;</span> <span class="Identifier">modelsAndFields</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span>
+    <span class="Keyword">tuple</span><span class="Other">[</span><span class="Identifier">t</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">,</span> <span class="Identifier">fields</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">]</span><span class="Other">]</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L510"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L510" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="generateProcsForModels.m,type,openArray[type]">
+<dt><pre><span class="Keyword">macro</span> <a href="#generateProcsForModels.m%2Ctype%2CopenArray%5Btype%5D"><span class="Identifier">generateProcsForModels</span></a><span class="Other">(</span><span class="Identifier">dbType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">;</span> <span class="Identifier">modelTypes</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">type</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+Generate all standard access procedures for the given model types. For a <a class="reference external" href="#objectminusrelational-modeling-model-class">model class</a> named <tt class="docutils literal"><span class="pre"><span class="Identifier">TodoItem</span></span></tt>, this will generate the following procedures:<pre class="listing"><span class="Keyword">proc</span> <span class="Identifier">getTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">idType</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">getAllTodoItems</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">createTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">deleteTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">deleteTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">idType</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">updateTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">findTodoItemsWhere</span><span class="Operator">*</span><span class="Punctuation">(</span>
+  <span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">whereClause</span><span class="Punctuation">:</span> <span class="Identifier">string</span><span class="Punctuation">,</span> <span class="Identifier">values</span><span class="Punctuation">:</span> <span class="Identifier">varargs</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">]</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">;</span></pre><p><tt class="docutils literal"><span class="pre"><span class="Identifier">dbType</span></span></tt> is expected to be some type that has a defined <tt class="docutils literal"><span class="pre"><span class="Identifier">withConn</span></span></tt> procedure (see <a class="reference external" href="#database-object">Database Object</a> for details).</p>
+
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L414"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L414" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+
+</dl></div>
+<div class="section" id="18">
+<h1><a class="toc-backref" href="#18">Templates</a></h1>
+<dl class="item">
+<div id="deleteRecord.t,DbConn,type,typed">
+<dt><pre><span class="Keyword">template</span> <a href="#deleteRecord.t%2CDbConn%2Ctype%2Ctyped"><span class="Identifier">deleteRecord</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">;</span> <span class="Identifier">id</span><span class="Other">:</span> <span class="Identifier">typed</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+Delete a record by id.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L353"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L353" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="findRecordsBy.t,DbConn,type,seq[tuple[string,string]]">
+<dt><pre><span class="Keyword">template</span> <a href="#findRecordsBy.t%2CDbConn%2Ctype%2Cseq%5Btuple%5Bstring%2Cstring%5D%5D"><span class="Identifier">findRecordsBy</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">;</span>
+                       <span class="Identifier">lookups</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Keyword">tuple</span><span class="Other">[</span><span class="Identifier">field</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">,</span> <span class="Identifier">value</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">]</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+Find all records matching the provided lookup values.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L403"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L403" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="findRecordsWhere.t,DbConn,type,string,varargs[string,dbFormat]">
+<dt><pre><span class="Keyword">template</span> <a href="#findRecordsWhere.t%2CDbConn%2Ctype%2Cstring%2Cvarargs%5Bstring%2CdbFormat%5D"><span class="Identifier">findRecordsWhere</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">;</span> <span class="Identifier">whereClause</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">;</span>
+                          <span class="Identifier">values</span><span class="Other">:</span> <span class="Identifier">varargs</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Identifier">dbFormat</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+Find all records matching a given <tt class="docutils literal"><span class="pre"><span class="Identifier">WHERE</span></span></tt> clause. The number of elements in the <tt class="docutils literal"><span class="pre"><span class="Identifier">values</span></span></tt> array must match the number of placeholders (<tt class="docutils literal"><span class="pre"><span class="Operator">?</span></span></tt>) in the provided <tt class="docutils literal"><span class="pre"><span class="Identifier">WHERE</span></span></tt> clause.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L382"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L382" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="getAllRecords.t,DbConn,type">
+<dt><pre><span class="Keyword">template</span> <a href="#getAllRecords.t%2CDbConn%2Ctype"><span class="Identifier">getAllRecords</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+Fetch all records of the given type.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L394"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L394" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="getRecord.t,DbConn,type,typed">
+<dt><pre><span class="Keyword">template</span> <a href="#getRecord.t%2CDbConn%2Ctype%2Ctyped"><span class="Identifier">getRecord</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">;</span> <span class="Identifier">id</span><span class="Other">:</span> <span class="Identifier">typed</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+Fetch a record by id.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L367"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L367" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="inTransaction.t,DbConnPool,untyped">
+<dt><pre><span class="Keyword">template</span> <a href="#inTransaction.t%2CDbConnPool%2Cuntyped"><span class="Identifier">inTransaction</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="fiber_orm/pool.html#DbConnPool"><span class="Identifier">DbConnPool</span></a><span class="Other">;</span> <span class="Identifier">body</span><span class="Other">:</span> <span class="Identifier">untyped</span><span class="Other">)</span></pre></dt>
+<dd>
+
+
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L567"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L567" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+
+</dl></div>
+<div class="section" id="19">
+<h1><a class="toc-backref" href="#19">Exports</a></h1>
+<dl class="item">
+<a href="fiber_orm/pool.html#DbConnPoolConfig"><span class="Identifier">DbConnPoolConfig</span></a>, <a href="fiber_orm/pool.html#initDbConnPool,DbConnPoolConfig"><span class="Identifier">initDbConnPool</span></a>, <a href="fiber_orm/pool.html#withConn.t,DbConnPool,untyped"><span class="Identifier">withConn</span></a>, <a href="fiber_orm/pool.html#take,DbConnPool"><span class="Identifier">take</span></a>, <a href="fiber_orm/pool.html#DbConnPool"><span class="Identifier">DbConnPool</span></a>, <a href="fiber_orm/pool.html#release,DbConnPool,int"><span class="Identifier">release</span></a>, <a href="fiber_orm/util.html#columnNamesForModel.m,typed"><span class="Identifier">columnNamesForModel</span></a>, <a href="fiber_orm/util.html#dbFormat,DateTime"><span class="Identifier">dbFormat</span></a>, <a href="fiber_orm/util.html#dbFormat,seq[T]"><span class="Identifier">dbFormat</span></a>, <a href="fiber_orm/util.html#dbFormat,string"><span class="Identifier">dbFormat</span></a>, <a href="fiber_orm/util.html#dbFormat,T"><span class="Identifier">dbFormat</span></a>, <a href="fiber_orm/util.html#dbNameToIdent,string"><span class="Identifier">dbNameToIdent</span></a>, <a href="fiber_orm/util.html#identNameToDb,string"><span class="Identifier">identNameToDb</span></a>, <a href="fiber_orm/util.html#modelName.m,type"><span class="Identifier">modelName</span></a>, <a href="fiber_orm/util.html#modelName.m"><span class="Identifier">modelName</span></a>, <a href="fiber_orm/util.html#rowToModel.m,typed,seq[string]"><span class="Identifier">rowToModel</span></a>, <a href="fiber_orm/util.html#tableName,type"><span class="Identifier">tableName</span></a>, <a href="fiber_orm/util.html#tableName,T"><span class="Identifier">tableName</span></a>
+</dl></div>
+
+  </div>
+</div>
+
+    <div class="row">
+      <div class="twelve-columns footer">
+        <span class="nim-sprite"></span>
+        <br/>
+        <small style="color: var(--hint);">Made with Nim. Generated: 2022-09-04 02:31:20 UTC</small>
+      </div>
+    </div>
+  </div>
+</div>
+
+</body>
+</html>

docs/fiber_orm.idx

@@ -0,0 +1,25 @@
+NotFoundError	fiber_orm.html#NotFoundError	fiber_orm: NotFoundError	
+createRecord	fiber_orm.html#createRecord,DbConn,T	fiber_orm: createRecord[T](db: DbConn; rec: T): T	
+updateRecord	fiber_orm.html#updateRecord,DbConn,T	fiber_orm: updateRecord[T](db: DbConn; rec: T): bool	
+deleteRecord	fiber_orm.html#deleteRecord.t,DbConn,type,typed	fiber_orm: deleteRecord(db: DbConn; modelType: type; id: typed): untyped	
+deleteRecord	fiber_orm.html#deleteRecord,DbConn,T	fiber_orm: deleteRecord[T](db: DbConn; rec: T): bool	
+getRecord	fiber_orm.html#getRecord.t,DbConn,type,typed	fiber_orm: getRecord(db: DbConn; modelType: type; id: typed): untyped	
+findRecordsWhere	fiber_orm.html#findRecordsWhere.t,DbConn,type,string,varargs[string,dbFormat]	fiber_orm: findRecordsWhere(db: DbConn; modelType: type; whereClause: string;\n                 values: varargs[string, dbFormat]): untyped	
+getAllRecords	fiber_orm.html#getAllRecords.t,DbConn,type	fiber_orm: getAllRecords(db: DbConn; modelType: type): untyped	
+findRecordsBy	fiber_orm.html#findRecordsBy.t,DbConn,type,seq[tuple[string,string]]	fiber_orm: findRecordsBy(db: DbConn; modelType: type;\n              lookups: seq[tuple[field: string, value: string]]): untyped	
+generateProcsForModels	fiber_orm.html#generateProcsForModels.m,type,openArray[type]	fiber_orm: generateProcsForModels(dbType: type; modelTypes: openArray[type]): untyped	
+generateLookup	fiber_orm.html#generateLookup.m,type,type,seq[string]	fiber_orm: generateLookup(dbType: type; modelType: type; fields: seq[string]): untyped	
+generateProcsForFieldLookups	fiber_orm.html#generateProcsForFieldLookups.m,type,openArray[tuple[type,seq[string]]]	fiber_orm: generateProcsForFieldLookups(dbType: type; modelsAndFields: openArray[\n    tuple[t: type, fields: seq[string]]]): untyped	
+initPool	fiber_orm.html#initPool,proc),int,string	fiber_orm: initPool(connect: proc (): DbConn; poolSize = 10; hardCap = false;\n         healthCheckQuery = "SELECT \'true\' AS alive"): DbConnPool	
+inTransaction	fiber_orm.html#inTransaction.t,DbConnPool,untyped	fiber_orm: inTransaction(db: DbConnPool; body: untyped)	
+Basic Usage	fiber_orm.html#basic-usage	 Basic Usage	
+Example DB Schema	fiber_orm.html#basic-usage-example-db-schema	  Example DB Schema	
+Example Model Definitions	fiber_orm.html#basic-usage-example-model-definitions	  Example Model Definitions	
+Example Fiber ORM Usage	fiber_orm.html#basic-usage-example-fiber-orm-usage	  Example Fiber ORM Usage	
+Object-Relational Modeling	fiber_orm.html#objectminusrelational-modeling	 Object-Relational Modeling	
+Model Class	fiber_orm.html#objectminusrelational-modeling-model-class	  Model Class	
+Name Mapping	fiber_orm.html#model-class-name-mapping	   Name Mapping	
+ID Field	fiber_orm.html#model-class-id-field	   ID Field	
+Supported Data Types	fiber_orm.html#objectminusrelational-modeling-supported-data-types	  Supported Data Types	
+Database Object	fiber_orm.html#database-object	 Database Object	
+See Also	fiber_orm.html#see-also	 See Also	

docs/fiber_orm/pool.html

@@ -0,0 +1,303 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<!--  This file is generated by Nim. -->
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
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+    <h1 class="title">src/fiber_orm/pool</h1>
+    <div class="row">
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+    &nbsp;&nbsp;&nbsp; <em>Dark Mode</em>
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+    <ul class="simple">
+    <li>
+      <a href="../theindex.html">Index</a>
+    </li>
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+    Search: <input type="text" id="searchInput"
+      onkeyup="search()" />
+  </div>
+  <div>
+    Group by:
+    <select onchange="groupBy(this.value)">
+      <option value="section">Section</option>
+      <option value="type">Type</option>
+    </select>
+  </div>
+  <ul class="simple simple-toc" id="toc-list">
+<li>
+  <a class="reference reference-toplevel" href="#7" id="57">Types</a>
+  <ul class="simple simple-toc-section">
+      <li><a class="reference" href="#DbConnPool"
+    title="DbConnPool = ref object
+  conns: seq[PooledDbConn]
+  cfg: DbConnPoolConfig
+  lastId: int">DbConnPool</a></li>
+  <li><a class="reference" href="#DbConnPoolConfig"
+    title="DbConnPoolConfig = object
+  connect*: () -&gt; DbConn     ## Factory procedure to create a new DBConn
+  poolSize*: int             ## The pool capacity.
+  hardCap*: bool ## Is the pool capacity a hard cap?
+                 ## 
+                 ## When `false`, the pool can grow beyond the configured
+                 ## capacity, but will release connections down to the its
+                 ## capacity (no less than `poolSize`).
+                 ## 
+                 ## When `true` the pool will not create more than its
+                 ## configured capacity.  It a connection is requested, none
+                 ## are free, and the pool is at capacity, this will result
+                 ## in an Error being raised.
+  healthCheckQuery*: string  ## Should be a simple and fast SQL query that the
+                             ## pool can use to test the liveliness of pooled
+                             ## connections.">DbConnPoolConfig</a></li>
+
+  </ul>
+</li>
+<li>
+  <a class="reference reference-toplevel" href="#12" id="62">Procs</a>
+  <ul class="simple simple-toc-section">
+      <ul class="simple nested-toc-section">initDbConnPool
+      <li><a class="reference" href="#initDbConnPool%2CDbConnPoolConfig"
+    title="initDbConnPool(cfg: DbConnPoolConfig): DbConnPool">initDbConnPool(cfg: DbConnPoolConfig): DbConnPool</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">release
+      <li><a class="reference" href="#release%2CDbConnPool%2Cint"
+    title="release(pool: DbConnPool; connId: int): void">release(pool: DbConnPool; connId: int): void</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">take
+      <li><a class="reference" href="#take%2CDbConnPool"
+    title="take(pool: DbConnPool): tuple[id: int, conn: DbConn]">take(pool: DbConnPool): tuple[id: int, conn: DbConn]</a></li>
+
+  </ul>
+
+  </ul>
+</li>
+<li>
+  <a class="reference reference-toplevel" href="#18" id="68">Templates</a>
+  <ul class="simple simple-toc-section">
+      <ul class="simple nested-toc-section">withConn
+      <li><a class="reference" href="#withConn.t%2CDbConnPool%2Cuntyped"
+    title="withConn(pool: DbConnPool; stmt: untyped): untyped">withConn(pool: DbConnPool; stmt: untyped): untyped</a></li>
+
+  </ul>
+
+  </ul>
+</li>
+
+</ul>
+
+  </div>
+  &nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/pool.nim#L1"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/pool.nim#L1" class="link-seesrc" target="_blank" >Edit</a>
+
+  <div class="nine columns" id="content">
+  <div id="tocRoot"></div>
+  
+  <p class="module-desc">Simple database connection pooling implementation compatible with Fiber ORM.</p>
+  <div class="section" id="7">
+<h1><a class="toc-backref" href="#7">Types</a></h1>
+<dl class="item">
+<div id="DbConnPool">
+<dt><pre><a href="pool.html#DbConnPool"><span class="Identifier">DbConnPool</span></a> <span class="Other">=</span> <span class="Keyword">ref</span> <span class="Keyword">object</span>
+  <span class="Identifier">conns</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">PooledDbConn</span><span class="Other">]</span>
+  <span class="Identifier">cfg</span><span class="Other">:</span> <a href="pool.html#DbConnPoolConfig"><span class="Identifier">DbConnPoolConfig</span></a>
+  <span class="Identifier">lastId</span><span class="Other">:</span> <span class="Identifier">int</span>
+</pre></dt>
+<dd>
+
+Database connection pool
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/pool.nim#L35"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/pool.nim#L35" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="DbConnPoolConfig">
+<dt><pre><a href="pool.html#DbConnPoolConfig"><span class="Identifier">DbConnPoolConfig</span></a> <span class="Other">=</span> <span class="Keyword">object</span>
+  <span class="Identifier">connect</span><span class="Operator">*</span><span class="Other">:</span> <span class="Other">(</span><span class="Other">)</span> <span class="Operator">-&gt;</span> <span class="Identifier">DbConn</span>     <span class="Comment">## Factory procedure to create a new DBConn</span>
+  <span class="Identifier">poolSize</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">int</span>             <span class="Comment">## The pool capacity.</span>
+  <span class="Identifier">hardCap</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">bool</span> <span class="Comment">## Is the pool capacity a hard cap?</span>
+                 <span class="Comment">## </span>
+                 <span class="Comment">## When `false`, the pool can grow beyond the configured</span>
+                 <span class="Comment">## capacity, but will release connections down to the its</span>
+                 <span class="Comment">## capacity (no less than `poolSize`).</span>
+                 <span class="Comment">## </span>
+                 <span class="Comment">## When `true` the pool will not create more than its</span>
+                 <span class="Comment">## configured capacity.  It a connection is requested, none</span>
+                 <span class="Comment">## are free, and the pool is at capacity, this will result</span>
+                 <span class="Comment">## in an Error being raised.</span>
+  <span class="Identifier">healthCheckQuery</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">string</span>  <span class="Comment">## Should be a simple and fast SQL query that the</span>
+                             <span class="Comment">## pool can use to test the liveliness of pooled</span>
+                             <span class="Comment">## connections.</span>
+  </pre></dt>
+<dd>
+
+
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/pool.nim#L13"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/pool.nim#L13" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+
+</dl></div>
+<div class="section" id="12">
+<h1><a class="toc-backref" href="#12">Procs</a></h1>
+<dl class="item">
+<div id="initDbConnPool,DbConnPoolConfig">
+<dt><pre><span class="Keyword">proc</span> <a href="#initDbConnPool%2CDbConnPoolConfig"><span class="Identifier">initDbConnPool</span></a><span class="Other">(</span><span class="Identifier">cfg</span><span class="Other">:</span> <a href="pool.html#DbConnPoolConfig"><span class="Identifier">DbConnPoolConfig</span></a><span class="Other">)</span><span class="Other">:</span> <a href="pool.html#DbConnPool"><span class="Identifier">DbConnPool</span></a> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">Exception</span><span class="Other">]</span><span class="Other">,</span>
+    <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">RootEffect</span><span class="Other">]</span></span>.}</pre></dt>
+<dd>
+
+
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/pool.nim#L47"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/pool.nim#L47" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="release,DbConnPool,int">
+<dt><pre><span class="Keyword">proc</span> <a href="#release%2CDbConnPool%2Cint"><span class="Identifier">release</span></a><span class="Other">(</span><span class="Identifier">pool</span><span class="Other">:</span> <a href="pool.html#DbConnPool"><span class="Identifier">DbConnPool</span></a><span class="Other">;</span> <span class="Identifier">connId</span><span class="Other">:</span> <span class="Identifier">int</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">void</span> {.
+    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">Exception</span><span class="Other">,</span> <span class="Identifier">ValueError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">RootEffect</span><span class="Other">]</span></span>.}</pre></dt>
+<dd>
+
+Release a connection back to the pool.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/pool.nim#L116"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/pool.nim#L116" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="take,DbConnPool">
+<dt><pre><span class="Keyword">proc</span> <a href="#take%2CDbConnPool"><span class="Identifier">take</span></a><span class="Other">(</span><span class="Identifier">pool</span><span class="Other">:</span> <a href="pool.html#DbConnPool"><span class="Identifier">DbConnPool</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Keyword">tuple</span><span class="Other">[</span><span class="Identifier">id</span><span class="Other">:</span> <span class="Identifier">int</span><span class="Other">,</span> <span class="Identifier">conn</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">]</span> {.
+    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">Exception</span><span class="Other">,</span> <span class="Identifier">ValueError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">RootEffect</span><span class="Other">,</span> <span class="Identifier">ReadDbEffect</span><span class="Other">,</span> <span class="Identifier">DbEffect</span><span class="Other">]</span></span>.}</pre></dt>
+<dd>
+
+<p>Request a connection from the pool. Returns a DbConn if the pool has free connections, or if it has the capacity to create a new connection. If the pool is configured with a hard capacity limit and is out of free connections, this will raise an Error.</p>
+<p>Connections taken must be returned via <tt class="docutils literal"><span class="pre"><span class="Identifier">release</span></span></tt> when the caller is finished using them in order for them to be released back to the pool.</p>
+
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/pool.nim#L94"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/pool.nim#L94" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+
+</dl></div>
+<div class="section" id="18">
+<h1><a class="toc-backref" href="#18">Templates</a></h1>
+<dl class="item">
+<div id="withConn.t,DbConnPool,untyped">
+<dt><pre><span class="Keyword">template</span> <a href="#withConn.t%2CDbConnPool%2Cuntyped"><span class="Identifier">withConn</span></a><span class="Other">(</span><span class="Identifier">pool</span><span class="Other">:</span> <a href="pool.html#DbConnPool"><span class="Identifier">DbConnPool</span></a><span class="Other">;</span> <span class="Identifier">stmt</span><span class="Other">:</span> <span class="Identifier">untyped</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+<p>Convenience template to provide a connection from the pool for use in a statement block, automatically releasing that connnection when done.</p>
+<p>The provided connection is injected as the variable <tt class="docutils literal"><span class="pre"><span class="Identifier">conn</span></span></tt> in the statement body.</p>
+
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/pool.nim#L122"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/pool.nim#L122" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+
+</dl></div>
+
+  </div>
+</div>
+
+    <div class="row">
+      <div class="twelve-columns footer">
+        <span class="nim-sprite"></span>
+        <br/>
+        <small style="color: var(--hint);">Made with Nim. Generated: 2022-09-04 02:31:19 UTC</small>
+      </div>
+    </div>
+  </div>
+</div>
+
+</body>
+</html>

docs/fiber_orm/pool.idx

@@ -0,0 +1,6 @@
+DbConnPoolConfig	fiber_orm/pool.html#DbConnPoolConfig	pool: DbConnPoolConfig	
+DbConnPool	fiber_orm/pool.html#DbConnPool	pool: DbConnPool	
+initDbConnPool	fiber_orm/pool.html#initDbConnPool,DbConnPoolConfig	pool: initDbConnPool(cfg: DbConnPoolConfig): DbConnPool	
+take	fiber_orm/pool.html#take,DbConnPool	pool: take(pool: DbConnPool): tuple[id: int, conn: DbConn]	
+release	fiber_orm/pool.html#release,DbConnPool,int	pool: release(pool: DbConnPool; connId: int): void	
+withConn	fiber_orm/pool.html#withConn.t,DbConnPool,untyped	pool: withConn(pool: DbConnPool; stmt: untyped): untyped	

docs/fiber_orm/util.html

@@ -0,0 +1,524 @@
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+    <h1 class="title">src/fiber_orm/util</h1>
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+  <div class="theme-switch-wrapper">
+    <label class="theme-switch" for="checkbox">
+      <input type="checkbox" id="checkbox" />
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+    </label>
+    &nbsp;&nbsp;&nbsp; <em>Dark Mode</em>
+  </div>
+  <div id="global-links">
+    <ul class="simple">
+    <li>
+      <a href="../theindex.html">Index</a>
+    </li>
+    </ul>
+  </div>
+  <div id="searchInputDiv">
+    Search: <input type="text" id="searchInput"
+      onkeyup="search()" />
+  </div>
+  <div>
+    Group by:
+    <select onchange="groupBy(this.value)">
+      <option value="section">Section</option>
+      <option value="type">Type</option>
+    </select>
+  </div>
+  <ul class="simple simple-toc" id="toc-list">
+<li>
+  <a class="reference reference-toplevel" href="#7" id="57">Types</a>
+  <ul class="simple simple-toc-section">
+      <li><a class="reference" href="#MutateClauses"
+    title="MutateClauses = object
+  columns*: seq[string]
+  placeholders*: seq[string]
+  values*: seq[string]">MutateClauses</a></li>
+
+  </ul>
+</li>
+<li>
+  <a class="reference reference-toplevel" href="#12" id="62">Procs</a>
+  <ul class="simple simple-toc-section">
+      <ul class="simple nested-toc-section">createParseStmt
+      <li><a class="reference" href="#createParseStmt%2CNimNode%2CNimNode"
+    title="createParseStmt(t, value: NimNode): NimNode">createParseStmt(t, value: NimNode): NimNode</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">dbFormat
+      <li><a class="reference" href="#dbFormat%2CDateTime"
+    title="dbFormat(dt: DateTime): string">dbFormat(dt: DateTime): string</a></li>
+  <li><a class="reference" href="#dbFormat%2Cstring"
+    title="dbFormat(s: string): string">dbFormat(s: string): string</a></li>
+  <li><a class="reference" href="#dbFormat%2CT"
+    title="dbFormat[T](item: T): string">dbFormat[T](item: T): string</a></li>
+  <li><a class="reference" href="#dbFormat%2Cseq%5BT%5D"
+    title="dbFormat[T](list: seq[T]): string">dbFormat[T](list: seq[T]): string</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">dbNameToIdent
+      <li><a class="reference" href="#dbNameToIdent%2Cstring"
+    title="dbNameToIdent(name: string): string">dbNameToIdent(name: string): string</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">identNameToDb
+      <li><a class="reference" href="#identNameToDb%2Cstring"
+    title="identNameToDb(name: string): string">identNameToDb(name: string): string</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">parseDbArray
+      <li><a class="reference" href="#parseDbArray%2Cstring"
+    title="parseDbArray(val: string): seq[string]">parseDbArray(val: string): seq[string]</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">parsePGDatetime
+      <li><a class="reference" href="#parsePGDatetime%2Cstring"
+    title="parsePGDatetime(val: string): DateTime">parsePGDatetime(val: string): DateTime</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">pluralize
+      <li><a class="reference" href="#pluralize%2Cstring"
+    title="pluralize(name: string): string">pluralize(name: string): string</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">tableName
+      <li><a class="reference" href="#tableName%2Ctype"
+    title="tableName(modelType: type): string">tableName(modelType: type): string</a></li>
+  <li><a class="reference" href="#tableName%2CT"
+    title="tableName[T](rec: T): string">tableName[T](rec: T): string</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">typeOfColumn
+      <li><a class="reference" href="#typeOfColumn%2CNimNode%2Cstring"
+    title="typeOfColumn(modelType: NimNode; colName: string): NimNode">typeOfColumn(modelType: NimNode; colName: string): NimNode</a></li>
+
+  </ul>
+
+  </ul>
+</li>
+<li>
+  <a class="reference reference-toplevel" href="#17" id="67">Macros</a>
+  <ul class="simple simple-toc-section">
+      <ul class="simple nested-toc-section">columnNamesForModel
+      <li><a class="reference" href="#columnNamesForModel.m%2Ctyped"
+    title="columnNamesForModel(modelType: typed): seq[string]">columnNamesForModel(modelType: typed): seq[string]</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">listFields
+      <li><a class="reference" href="#listFields.m%2Ctyped"
+    title="listFields(t: typed): untyped">listFields(t: typed): untyped</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">modelName
+      <li><a class="reference" href="#modelName.m"
+    title="modelName(model: object): string">modelName(model: object): string</a></li>
+  <li><a class="reference" href="#modelName.m%2Ctype"
+    title="modelName(modelType: type): string">modelName(modelType: type): string</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">populateMutateClauses
+      <li><a class="reference" href="#populateMutateClauses.m%2Ctyped%2Cbool%2CMutateClauses"
+    title="populateMutateClauses(t: typed; newRecord: bool; mc: var MutateClauses): untyped">populateMutateClauses(t: typed; newRecord: bool; mc: var MutateClauses): untyped</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">rowToModel
+      <li><a class="reference" href="#rowToModel.m%2Ctyped%2Cseq%5Bstring%5D"
+    title="rowToModel(modelType: typed; row: seq[string]): untyped">rowToModel(modelType: typed; row: seq[string]): untyped</a></li>
+
+  </ul>
+
+  </ul>
+</li>
+<li>
+  <a class="reference reference-toplevel" href="#18" id="68">Templates</a>
+  <ul class="simple simple-toc-section">
+      <ul class="simple nested-toc-section">walkFieldDefs
+      <li><a class="reference" href="#walkFieldDefs.t%2CNimNode%2Cuntyped"
+    title="walkFieldDefs(t: NimNode; body: untyped)">walkFieldDefs(t: NimNode; body: untyped)</a></li>
+
+  </ul>
+
+  </ul>
+</li>
+
+</ul>
+
+  </div>
+  &nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L1"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L1" class="link-seesrc" target="_blank" >Edit</a>
+
+  <div class="nine columns" id="content">
+  <div id="tocRoot"></div>
+  
+  <p class="module-desc">Utility methods used internally by Fiber ORM.</p>
+  <div class="section" id="7">
+<h1><a class="toc-backref" href="#7">Types</a></h1>
+<dl class="item">
+<div id="MutateClauses">
+<dt><pre><a href="util.html#MutateClauses"><span class="Identifier">MutateClauses</span></a> <span class="Other">=</span> <span class="Keyword">object</span>
+  <span class="Identifier">columns</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">]</span>
+  <span class="Identifier">placeholders</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">]</span>
+  <span class="Identifier">values</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">]</span>
+</pre></dt>
+<dd>
+
+Data structure to hold information about the clauses that should be added to a query. How these clauses are used will depend on the query. This common data structure provides the information needed to create WHERE clauses, UPDATE clauses, etc.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L12"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L12" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+
+</dl></div>
+<div class="section" id="12">
+<h1><a class="toc-backref" href="#12">Procs</a></h1>
+<dl class="item">
+<div id="createParseStmt,NimNode,NimNode">
+<dt><pre><span class="Keyword">proc</span> <a href="#createParseStmt%2CNimNode%2CNimNode"><span class="Identifier">createParseStmt</span></a><span class="Other">(</span><span class="Identifier">t</span><span class="Other">,</span> <span class="Identifier">value</span><span class="Other">:</span> <span class="Identifier">NimNode</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">NimNode</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
+<dd>
+
+Utility method to create the Nim cod required to parse a value coming from the a database query. This is used by functions like <tt class="docutils literal"><span class="pre"><span class="Identifier">rowToModel</span></span></tt> to parse the dataabase columns into the Nim object fields.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L190"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L190" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="dbFormat,DateTime">
+<dt><pre><span class="Keyword">proc</span> <a href="#dbFormat%2CDateTime"><span class="Identifier">dbFormat</span></a><span class="Other">(</span><span class="Identifier">dt</span><span class="Other">:</span> <span class="Identifier">DateTime</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
+<dd>
+
+Format a DateTime for inclusion in a SQL Query.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L75"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L75" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="dbFormat,string">
+<dt><pre><span class="Keyword">proc</span> <a href="#dbFormat%2Cstring"><span class="Identifier">dbFormat</span></a><span class="Other">(</span><span class="Identifier">s</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
+<dd>
+
+Format a string for inclusion in a SQL Query.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L71"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L71" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="dbFormat,T">
+<dt><pre><span class="Keyword">proc</span> <a href="#dbFormat%2CT"><span class="Identifier">dbFormat</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">item</span><span class="Other">:</span> <span class="Identifier">T</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span></pre></dt>
+<dd>
+
+For all other types, fall back on a defined <tt class="docutils literal"><span class="pre"><span class="Operator">$</span></span></tt> function to create a string version of the value we can include in an SQL query&gt;
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L83"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L83" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="dbFormat,seq[T]">
+<dt><pre><span class="Keyword">proc</span> <a href="#dbFormat%2Cseq%5BT%5D"><span class="Identifier">dbFormat</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">list</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span></pre></dt>
+<dd>
+
+Format a <tt class="docutils literal"><span class="pre"><span class="Identifier">seq</span></span></tt> for inclusion in a SQL Query.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L79"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L79" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="dbNameToIdent,string">
+<dt><pre><span class="Keyword">proc</span> <a href="#dbNameToIdent%2Cstring"><span class="Identifier">dbNameToIdent</span></a><span class="Other">(</span><span class="Identifier">name</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
+<dd>
+
+Map a DB name to a Nim identifier name. See the <a class="reference external" href="../fiber_orm.html">rules for name mapping</a>
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L58"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L58" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="identNameToDb,string">
+<dt><pre><span class="Keyword">proc</span> <a href="#identNameToDb%2Cstring"><span class="Identifier">identNameToDb</span></a><span class="Other">(</span><span class="Identifier">name</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
+<dd>
+
+<p>Map a Nim identifier name to a DB name. See the <a class="reference external" href="../fiber_orm.html">rules for name mapping</a></p>
+<p>TODO link above</p>
+
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L37"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L37" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="parseDbArray,string">
+<dt><pre><span class="Keyword">proc</span> <a href="#parseDbArray%2Cstring"><span class="Identifier">parseDbArray</span></a><span class="Other">(</span><span class="Identifier">val</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">]</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">ValueError</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
+<dd>
+
+Parse a Postgres array column into a Nim seq[string]
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L131"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L131" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="parsePGDatetime,string">
+<dt><pre><span class="Keyword">proc</span> <a href="#parsePGDatetime%2Cstring"><span class="Identifier">parsePGDatetime</span></a><span class="Other">(</span><span class="Identifier">val</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">DateTime</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">KeyError</span><span class="Other">,</span> <span class="Identifier">SyntaxError</span><span class="Other">,</span>
+    <span class="Identifier">StudyError</span><span class="Other">,</span> <span class="Identifier">ValueError</span><span class="Other">,</span> <span class="Identifier">RegexInternalError</span><span class="Other">,</span> <span class="Identifier">InvalidUnicodeError</span><span class="Other">]</span><span class="Other">,</span>
+    <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">TimeEffect</span><span class="Other">]</span></span>.}</pre></dt>
+<dd>
+
+Parse a Postgres datetime value into a Nim DateTime object.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L91"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L91" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="pluralize,string">
+<dt><pre><span class="Keyword">proc</span> <a href="#pluralize%2Cstring"><span class="Identifier">pluralize</span></a><span class="Other">(</span><span class="Identifier">name</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
+<dd>
+
+Return the plural form of the given name.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L23"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L23" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="tableName,type">
+<dt><pre><span class="Keyword">proc</span> <a href="#tableName%2Ctype"><span class="Identifier">tableName</span></a><span class="Other">(</span><span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span></pre></dt>
+<dd>
+
+Get the <a class="reference external" href="../fiber_orm.html">table name</a> for a given <a class="reference external" href="../fiber_orm.html#objectminusrelational-modeling-model-class">model class</a>
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L63"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L63" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="tableName,T">
+<dt><pre><span class="Keyword">proc</span> <a href="#tableName%2CT"><span class="Identifier">tableName</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">rec</span><span class="Other">:</span> <span class="Identifier">T</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span></pre></dt>
+<dd>
+
+Get the <a class="reference external" href="../fiber_orm.html">table name</a> for a given record.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L67"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L67" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="typeOfColumn,NimNode,string">
+<dt><pre><span class="Keyword">proc</span> <a href="#typeOfColumn%2CNimNode%2Cstring"><span class="Identifier">typeOfColumn</span></a><span class="Other">(</span><span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">NimNode</span><span class="Other">;</span> <span class="Identifier">colName</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">NimNode</span> {.
+    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">Exception</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
+<dd>
+
+Given a model type and a column name, return the Nim type for that column.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L308"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L308" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+
+</dl></div>
+<div class="section" id="17">
+<h1><a class="toc-backref" href="#17">Macros</a></h1>
+<dl class="item">
+<div id="columnNamesForModel.m,typed">
+<dt><pre><span class="Keyword">macro</span> <a href="#columnNamesForModel.m%2Ctyped"><span class="Identifier">columnNamesForModel</span></a><span class="Other">(</span><span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">typed</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">]</span></pre></dt>
+<dd>
+
+Return the column names corresponding to the the fields of the given <a class="reference external" href="../fiber_orm.html#objectminusrelational-modeling-model-class">model class</a>
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L274"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L274" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="listFields.m,typed">
+<dt><pre><span class="Keyword">macro</span> <a href="#listFields.m%2Ctyped"><span class="Identifier">listFields</span></a><span class="Other">(</span><span class="Identifier">t</span><span class="Other">:</span> <span class="Identifier">typed</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L300"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L300" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="modelName.m">
+<dt><pre><span class="Keyword">macro</span> <a href="#modelName.m"><span class="Identifier">modelName</span></a><span class="Other">(</span><span class="Identifier">model</span><span class="Other">:</span> <span class="Keyword">object</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span></pre></dt>
+<dd>
+
+For a given concrete record object, return the name of the <a class="reference external" href="../fiber_orm.html#objectminusrelational-modeling-model-class">model class</a>
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L29"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L29" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="modelName.m,type">
+<dt><pre><span class="Keyword">macro</span> <a href="#modelName.m%2Ctype"><span class="Identifier">modelName</span></a><span class="Other">(</span><span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span></pre></dt>
+<dd>
+
+Get the name of a given <a class="reference external" href="../fiber_orm.html#objectminusrelational-modeling-model-class">model class</a>
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L33"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L33" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="populateMutateClauses.m,typed,bool,MutateClauses">
+<dt><pre><span class="Keyword">macro</span> <a href="#populateMutateClauses.m%2Ctyped%2Cbool%2CMutateClauses"><span class="Identifier">populateMutateClauses</span></a><span class="Other">(</span><span class="Identifier">t</span><span class="Other">:</span> <span class="Identifier">typed</span><span class="Other">;</span> <span class="Identifier">newRecord</span><span class="Other">:</span> <span class="Identifier">bool</span><span class="Other">;</span> <span class="Identifier">mc</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="util.html#MutateClauses"><span class="Identifier">MutateClauses</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+Given a record type, create the datastructure used to generate SQL clauses for the fields of this record type.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L330"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L330" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="rowToModel.m,typed,seq[string]">
+<dt><pre><span class="Keyword">macro</span> <a href="#rowToModel.m%2Ctyped%2Cseq%5Bstring%5D"><span class="Identifier">rowToModel</span></a><span class="Other">(</span><span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">typed</span><span class="Other">;</span> <span class="Identifier">row</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+Return a new Nim model object of type <tt class="docutils literal"><span class="pre"><span class="Identifier">modelType</span></span></tt> populated with the values returned in the given database <tt class="docutils literal"><span class="pre"><span class="Identifier">row</span></span></tt>
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L284"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L284" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+
+</dl></div>
+<div class="section" id="18">
+<h1><a class="toc-backref" href="#18">Templates</a></h1>
+<dl class="item">
+<div id="walkFieldDefs.t,NimNode,untyped">
+<dt><pre><span class="Keyword">template</span> <a href="#walkFieldDefs.t%2CNimNode%2Cuntyped"><span class="Identifier">walkFieldDefs</span></a><span class="Other">(</span><span class="Identifier">t</span><span class="Other">:</span> <span class="Identifier">NimNode</span><span class="Other">;</span> <span class="Identifier">body</span><span class="Other">:</span> <span class="Identifier">untyped</span><span class="Other">)</span></pre></dt>
+<dd>
+
+Iterate over every field of the given Nim object, yielding and defining <tt class="docutils literal"><span class="pre"><span class="Identifier">fieldIdent</span></span></tt> and <tt class="docutils literal"><span class="pre"><span class="Identifier">fieldType</span></span></tt>, the name of the field as a Nim Ident node and the type of the field as a Nim Type node respectively.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm/util.nim#L251"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm/util.nim#L251" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+
+</dl></div>
+
+  </div>
+</div>
+
+    <div class="row">
+      <div class="twelve-columns footer">
+        <span class="nim-sprite"></span>
+        <br/>
+        <small style="color: var(--hint);">Made with Nim. Generated: 2022-09-04 02:31:20 UTC</small>
+      </div>
+    </div>
+  </div>
+</div>
+
+</body>
+</html>

docs/fiber_orm/util.idx

@@ -0,0 +1,21 @@
+MutateClauses	fiber_orm/util.html#MutateClauses	util: MutateClauses	
+pluralize	fiber_orm/util.html#pluralize,string	util: pluralize(name: string): string	
+modelName	fiber_orm/util.html#modelName.m	util: modelName(model: object): string	
+modelName	fiber_orm/util.html#modelName.m,type	util: modelName(modelType: type): string	
+identNameToDb	fiber_orm/util.html#identNameToDb,string	util: identNameToDb(name: string): string	
+dbNameToIdent	fiber_orm/util.html#dbNameToIdent,string	util: dbNameToIdent(name: string): string	
+tableName	fiber_orm/util.html#tableName,type	util: tableName(modelType: type): string	
+tableName	fiber_orm/util.html#tableName,T	util: tableName[T](rec: T): string	
+dbFormat	fiber_orm/util.html#dbFormat,string	util: dbFormat(s: string): string	
+dbFormat	fiber_orm/util.html#dbFormat,DateTime	util: dbFormat(dt: DateTime): string	
+dbFormat	fiber_orm/util.html#dbFormat,seq[T]	util: dbFormat[T](list: seq[T]): string	
+dbFormat	fiber_orm/util.html#dbFormat,T	util: dbFormat[T](item: T): string	
+parsePGDatetime	fiber_orm/util.html#parsePGDatetime,string	util: parsePGDatetime(val: string): DateTime	
+parseDbArray	fiber_orm/util.html#parseDbArray,string	util: parseDbArray(val: string): seq[string]	
+createParseStmt	fiber_orm/util.html#createParseStmt,NimNode,NimNode	util: createParseStmt(t, value: NimNode): NimNode	
+walkFieldDefs	fiber_orm/util.html#walkFieldDefs.t,NimNode,untyped	util: walkFieldDefs(t: NimNode; body: untyped)	
+columnNamesForModel	fiber_orm/util.html#columnNamesForModel.m,typed	util: columnNamesForModel(modelType: typed): seq[string]	
+rowToModel	fiber_orm/util.html#rowToModel.m,typed,seq[string]	util: rowToModel(modelType: typed; row: seq[string]): untyped	
+listFields	fiber_orm/util.html#listFields.m,typed	util: listFields(t: typed): untyped	
+typeOfColumn	fiber_orm/util.html#typeOfColumn,NimNode,string	util: typeOfColumn(modelType: NimNode; colName: string): NimNode	
+populateMutateClauses	fiber_orm/util.html#populateMutateClauses.m,typed,bool,MutateClauses	util: populateMutateClauses(t: typed; newRecord: bool; mc: var MutateClauses): untyped	

docs/index.html

@@ -0,0 +1,619 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<!--  This file is generated by Nim. -->
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+
+<!-- Favicon -->
+<link rel="shortcut icon" href="data:image/x-icon;base64,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"/>
+<link rel="icon" type="image/png" sizes="32x32" href="data:image/png;base64,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">
+
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+    Group by:
+    <select onchange="groupBy(this.value)">
+      <option value="section">Section</option>
+      <option value="type">Type</option>
+    </select>
+  </div>
+  <ul class="simple simple-toc" id="toc-list">
+<li><a class="reference" id="basic-usage_toc" href="#basic-usage">Basic Usage</a></li>
+<ul class="simple"><li><a class="reference" id="basic-usage-example-db-schema_toc" href="#basic-usage-example-db-schema">Example DB Schema</a></li>
+<li><a class="reference" id="basic-usage-example-model-definitions_toc" href="#basic-usage-example-model-definitions">Example Model Definitions</a></li>
+<li><a class="reference" id="basic-usage-example-fiber-orm-usage_toc" href="#basic-usage-example-fiber-orm-usage">Example Fiber ORM Usage</a></li>
+</ul><li><a class="reference" id="objectminusrelational-modeling_toc" href="#objectminusrelational-modeling">Object-Relational Modeling</a></li>
+<ul class="simple"><li><a class="reference" id="objectminusrelational-modeling-model-class_toc" href="#objectminusrelational-modeling-model-class">Model Class</a></li>
+<ul class="simple"><li><a class="reference" id="model-class-name-mapping_toc" href="#model-class-name-mapping">Name Mapping</a></li>
+<li><a class="reference" id="model-class-id-field_toc" href="#model-class-id-field">ID Field</a></li>
+</ul><li><a class="reference" id="objectminusrelational-modeling-supported-data-types_toc" href="#objectminusrelational-modeling-supported-data-types">Supported Data Types</a></li>
+</ul><li><a class="reference" id="database-object_toc" href="#database-object">Database Object</a></li>
+<li><a class="reference" id="see-also_toc" href="#see-also">See Also</a></li>
+<li>
+  <a class="reference reference-toplevel" href="#6" id="56">Imports</a>
+  <ul class="simple simple-toc-section">
+    
+  </ul>
+</li>
+<li>
+  <a class="reference reference-toplevel" href="#7" id="57">Types</a>
+  <ul class="simple simple-toc-section">
+      <li><a class="reference" href="#NotFoundError"
+    title="NotFoundError = object of CatchableError">NotFoundError</a></li>
+
+  </ul>
+</li>
+<li>
+  <a class="reference reference-toplevel" href="#12" id="62">Procs</a>
+  <ul class="simple simple-toc-section">
+      <ul class="simple nested-toc-section">createRecord
+      <li><a class="reference" href="#createRecord%2CDbConn%2CT"
+    title="createRecord[T](db: DbConn; rec: T): T">createRecord[T](db: DbConn; rec: T): T</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">deleteRecord
+      <li><a class="reference" href="#deleteRecord%2CDbConn%2CT"
+    title="deleteRecord[T](db: DbConn; rec: T): bool">deleteRecord[T](db: DbConn; rec: T): bool</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">initPool
+      <li><a class="reference" href="#initPool%2Cproc%29%2Cint%2Cstring"
+    title="initPool(connect: proc (): DbConn; poolSize = 10; hardCap = false;
+         healthCheckQuery = &quot;SELECT \'true\' AS alive&quot;): DbConnPool">initPool(connect: proc (): DbConn; poolSize = 10; hardCap = false;
+         healthCheckQuery = &quot;SELECT \'true\' AS alive&quot;): DbConnPool</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">updateRecord
+      <li><a class="reference" href="#updateRecord%2CDbConn%2CT"
+    title="updateRecord[T](db: DbConn; rec: T): bool">updateRecord[T](db: DbConn; rec: T): bool</a></li>
+
+  </ul>
+
+  </ul>
+</li>
+<li>
+  <a class="reference reference-toplevel" href="#17" id="67">Macros</a>
+  <ul class="simple simple-toc-section">
+      <ul class="simple nested-toc-section">generateLookup
+      <li><a class="reference" href="#generateLookup.m%2Ctype%2Ctype%2Cseq%5Bstring%5D"
+    title="generateLookup(dbType: type; modelType: type; fields: seq[string]): untyped">generateLookup(dbType: type; modelType: type; fields: seq[string]): untyped</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">generateProcsForFieldLookups
+      <li><a class="reference" href="#generateProcsForFieldLookups.m%2Ctype%2CopenArray%5Btuple%5Btype%2Cseq%5Bstring%5D%5D%5D"
+    title="generateProcsForFieldLookups(dbType: type; modelsAndFields: openArray[
+    tuple[t: type, fields: seq[string]]]): untyped">generateProcsForFieldLookups(dbType: type; modelsAndFields: openArray[
+    tuple[t: type, fields: seq[string]]]): untyped</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">generateProcsForModels
+      <li><a class="reference" href="#generateProcsForModels.m%2Ctype%2CopenArray%5Btype%5D"
+    title="generateProcsForModels(dbType: type; modelTypes: openArray[type]): untyped">generateProcsForModels(dbType: type; modelTypes: openArray[type]): untyped</a></li>
+
+  </ul>
+
+  </ul>
+</li>
+<li>
+  <a class="reference reference-toplevel" href="#18" id="68">Templates</a>
+  <ul class="simple simple-toc-section">
+      <ul class="simple nested-toc-section">deleteRecord
+      <li><a class="reference" href="#deleteRecord.t%2CDbConn%2Ctype%2Ctyped"
+    title="deleteRecord(db: DbConn; modelType: type; id: typed): untyped">deleteRecord(db: DbConn; modelType: type; id: typed): untyped</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">findRecordsBy
+      <li><a class="reference" href="#findRecordsBy.t%2CDbConn%2Ctype%2Cseq%5Btuple%5Bstring%2Cstring%5D%5D"
+    title="findRecordsBy(db: DbConn; modelType: type;
+              lookups: seq[tuple[field: string, value: string]]): untyped">findRecordsBy(db: DbConn; modelType: type;
+              lookups: seq[tuple[field: string, value: string]]): untyped</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">findRecordsWhere
+      <li><a class="reference" href="#findRecordsWhere.t%2CDbConn%2Ctype%2Cstring%2Cvarargs%5Bstring%2CdbFormat%5D"
+    title="findRecordsWhere(db: DbConn; modelType: type; whereClause: string;
+                 values: varargs[string, dbFormat]): untyped">findRecordsWhere(db: DbConn; modelType: type; whereClause: string;
+                 values: varargs[string, dbFormat]): untyped</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">getAllRecords
+      <li><a class="reference" href="#getAllRecords.t%2CDbConn%2Ctype"
+    title="getAllRecords(db: DbConn; modelType: type): untyped">getAllRecords(db: DbConn; modelType: type): untyped</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">getRecord
+      <li><a class="reference" href="#getRecord.t%2CDbConn%2Ctype%2Ctyped"
+    title="getRecord(db: DbConn; modelType: type; id: typed): untyped">getRecord(db: DbConn; modelType: type; id: typed): untyped</a></li>
+
+  </ul>
+  <ul class="simple nested-toc-section">inTransaction
+      <li><a class="reference" href="#inTransaction.t%2CDbConnPool%2Cuntyped"
+    title="inTransaction(db: DbConnPool; body: untyped)">inTransaction(db: DbConnPool; body: untyped)</a></li>
+
+  </ul>
+
+  </ul>
+</li>
+<li>
+  <a class="reference reference-toplevel" href="#19" id="69">Exports</a>
+  <ul class="simple simple-toc-section">
+    
+  </ul>
+</li>
+
+</ul>
+
+  </div>
+  &nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L1"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L1" class="link-seesrc" target="_blank" >Edit</a>
+
+  <div class="nine columns" id="content">
+  <div id="tocRoot"></div>
+  
+  <p class="module-desc"><p>Lightweight ORM supporting the <a class="reference external" href="https://nim-lang.org/docs/db_postgres.html">Postgres</a> and <a class="reference external" href="https://nim-lang.org/docs/db_sqlite.html">SQLite</a> databases in Nim. It supports a simple, opinionated model mapper to generate SQL queries based on Nim objects. It also includes a simple connection pooling implementation.</p>
+<p>Fiber ORM is not intended to be a 100% all-cases-covered ORM that handles every potential data access pattern one might wish to implement. It is best thought of as a collection of common SQL generation patterns. It is intended to cover 90% of the common queries and functions one might write when implementing an SQL-based access layer. It is expected that there may be a few more complicated queries that need to be implemented to handle specific access patterns.</p>
+<p>The simple mapping pattern provided by Fiber ORM also works well on top of databases that encapsulate data access logic in SQL with, for example, views.</p>
+
+<h1><a class="toc-backref" id="basic-usage" href="#basic-usage">Basic Usage</a></h1><p>Consider a simple TODO list application that keeps track of TODO items as well as time logged against those items.</p>
+
+<h2><a class="toc-backref" id="basic-usage-example-db-schema" href="#basic-usage-example-db-schema">Example DB Schema</a></h2><p>You might have a schema such as:</p>
+<pre class="listing">create extension if not exists &quot;pgcrypto&quot;;
+
+create table todo_items columns (
+  id uuid not null primary key default gen_random_uuid(),
+  owner varchar not null,
+  summary varchar not null,
+  details varchar default null,
+  priority integer not null default 0,
+  related_todo_item_ids uuid[] not null default '{}'
+);
+
+create table time_entries columns (
+  id uuid not null primary key default gen_random_uuid(),
+  todo_item_id uuid not null references todo_items (id) on delete cascade,
+  start timestamp with timezone not null default current_timestamp,
+  stop timestamp with timezone default null,
+);</pre>
+<h2><a class="toc-backref" id="basic-usage-example-model-definitions" href="#basic-usage-example-model-definitions">Example Model Definitions</a></h2><p>Models may be defined as:</p>
+<pre class="listing"><span class="Comment"># models.nim</span>
+<span class="Keyword">import</span> <span class="Identifier">std</span><span class="Operator">/</span><span class="Identifier">options</span><span class="Punctuation">,</span> <span class="Identifier">std</span><span class="Operator">/</span><span class="Identifier">times</span>
+<span class="Keyword">import</span> <span class="Identifier">uuids</span>
+
+<span class="Keyword">type</span>
+  <span class="Identifier">TodoItem</span><span class="Operator">*</span> <span class="Operator">=</span> <span class="Keyword">object</span>
+    <span class="Identifier">id</span><span class="Operator">*:</span> <span class="Identifier">UUID</span>
+    <span class="Identifier">owner</span><span class="Operator">*:</span> <span class="Identifier">string</span>
+    <span class="Identifier">summary</span><span class="Operator">*:</span> <span class="Identifier">string</span>
+    <span class="Identifier">details</span><span class="Operator">*:</span> <span class="Identifier">Option</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">]</span>
+    <span class="Identifier">priority</span><span class="Operator">*:</span> <span class="Identifier">int</span>
+    <span class="Identifier">relatedTodoItemIds</span><span class="Operator">*:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">UUID</span><span class="Punctuation">]</span>
+  
+  <span class="Identifier">TimeEntry</span><span class="Operator">*</span> <span class="Operator">=</span> <span class="Keyword">object</span>
+    <span class="Identifier">id</span><span class="Operator">*:</span> <span class="Identifier">UUID</span>
+    <span class="Identifier">todoItemId</span><span class="Operator">*:</span> <span class="Identifier">Option</span><span class="Punctuation">[</span><span class="Identifier">UUID</span><span class="Punctuation">]</span>
+    <span class="Identifier">start</span><span class="Operator">*:</span> <span class="Identifier">DateTime</span>
+    <span class="Identifier">stop</span><span class="Operator">*:</span> <span class="Identifier">Option</span><span class="Punctuation">[</span><span class="Identifier">DateTime</span><span class="Punctuation">]</span></pre>
+<h2><a class="toc-backref" id="basic-usage-example-fiber-orm-usage" href="#basic-usage-example-fiber-orm-usage">Example Fiber ORM Usage</a></h2><p>Using Fiber ORM we can generate a data access layer with:</p>
+<pre class="listing"><span class="Comment"># db.nim</span>
+<span class="Keyword">import</span> <span class="Identifier">fiber_orm</span>
+<span class="Keyword">import</span> <span class="Operator">./</span><span class="Identifier">models</span><span class="Operator">.</span><span class="Identifier">nim</span>
+
+<span class="Keyword">type</span> <span class="Identifier">TodoDB</span><span class="Operator">*</span> <span class="Operator">=</span> <span class="Identifier">DbConnPool</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">initDb</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">connString</span><span class="Punctuation">:</span> <span class="Identifier">string</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span> <span class="Operator">=</span>
+  <span class="Identifier">result</span> <span class="Operator">=</span> <span class="Identifier">fiber_orm</span><span class="Operator">.</span><span class="Identifier">initPool</span><span class="Punctuation">(</span>
+    <span class="Identifier">connect</span> <span class="Operator">=</span> <span class="Keyword">proc</span><span class="Punctuation">(</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">DbConn</span> <span class="Operator">=</span> <span class="Identifier">open</span><span class="Punctuation">(</span><span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="Identifier">connString</span><span class="Punctuation">)</span><span class="Punctuation">,</span>
+    <span class="Identifier">poolSize</span> <span class="Operator">=</span> <span class="DecNumber">20</span><span class="Punctuation">,</span>
+    <span class="Identifier">hardCap</span> <span class="Operator">=</span> <span class="Identifier">false</span><span class="Punctuation">)</span>
+
+
+<span class="Identifier">generateProcsForModels</span><span class="Punctuation">(</span><span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Punctuation">[</span><span class="Identifier">TodoItem</span><span class="Punctuation">,</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">]</span><span class="Punctuation">)</span>
+
+<span class="Identifier">generateLookup</span><span class="Punctuation">(</span><span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">,</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="StringLit">&quot;todoItemId&quot;</span><span class="Punctuation">]</span><span class="Punctuation">)</span></pre><p>This will generate the following procedures:</p>
+<pre class="listing"><span class="Keyword">proc</span> <span class="Identifier">getTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">UUID</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">getAllTodoItems</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TodoItem</span><span class="Punctuation">]</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">createTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">updateTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">deleteTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">deleteTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">UUID</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">findTodoItemsWhere</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">whereClause</span><span class="Punctuation">:</span> <span class="Identifier">string</span><span class="Punctuation">,</span>
+  <span class="Identifier">values</span><span class="Punctuation">:</span> <span class="Identifier">varargs</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">,</span> <span class="Identifier">dbFormat</span><span class="Punctuation">]</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TodoItem</span><span class="Punctuation">]</span><span class="Punctuation">;</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">getTimeEntry</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">UUID</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">getAllTimeEntries</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TimeEntry</span><span class="Punctuation">]</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">createTimeEntry</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">updateTimeEntry</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">deleteTimeEntry</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TimeEntry</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">deleteTimeEntry</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">UUID</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">findTimeEntriesWhere</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">whereClause</span><span class="Punctuation">:</span> <span class="Identifier">string</span><span class="Punctuation">,</span>
+  <span class="Identifier">values</span><span class="Punctuation">:</span> <span class="Identifier">varargs</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">,</span> <span class="Identifier">dbFormat</span><span class="Punctuation">]</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TimeEntry</span><span class="Punctuation">]</span><span class="Punctuation">;</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">findTimeEntriesByTodoItemId</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">todoItemId</span><span class="Punctuation">:</span> <span class="Identifier">UUID</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TimeEntry</span><span class="Punctuation">]</span><span class="Punctuation">;</span></pre>
+<h1><a class="toc-backref" id="objectminusrelational-modeling" href="#objectminusrelational-modeling">Object-Relational Modeling</a></h1>
+<h2><a class="toc-backref" id="objectminusrelational-modeling-model-class" href="#objectminusrelational-modeling-model-class">Model Class</a></h2><p>Fiber ORM uses simple Nim <tt class="docutils literal"><span class="pre"><span class="Keyword">object</span></span></tt>s and <tt class="docutils literal"><span class="pre"><span class="Keyword">ref</span> <span class="Keyword">object</span></span></tt>s as model classes. Fiber ORM expects there to be one table for each model class.</p>
+
+<h3><a class="toc-backref" id="model-class-name-mapping" href="#model-class-name-mapping">Name Mapping</a></h3><p>Fiber ORM uses <tt class="docutils literal"><span class="pre"><span class="Identifier">snake_case</span></span></tt> for database identifiers (column names, table names, etc.) and <tt class="docutils literal"><span class="pre"><span class="Identifier">camelCase</span></span></tt> for Nim identifiers. We automatically convert model names to and from table names (<tt class="docutils literal"><span class="pre"><span class="Identifier">TodoItem</span></span></tt> &lt;-&gt; <tt class="docutils literal"><span class="pre"><span class="Identifier">todo_items</span></span></tt>), as well as column names (<tt class="docutils literal"><span class="pre"><span class="Identifier">userId</span></span></tt> &lt;-&gt; <tt class="docutils literal"><span class="pre"><span class="Identifier">user_id</span></span></tt>).</p>
+<p>Notice that table names are automatically pluralized from model class names. In the above example, you have:</p>
+<table border="1" class="docutils"><tr><th>Model Class</th><th>Table Name</th></tr>
+<tr><td>TodoItem</td><td>todo_items</td></tr>
+<tr><td>TimeEntry</td><td>time_entries</td></tr>
+</table><p>Because Nim is style-insensitive, you can generall refer to model classes and fields using <tt class="docutils literal"><span class="pre"><span class="Identifier">snake_case</span></span></tt>, <tt class="docutils literal"><span class="pre"><span class="Identifier">camelCase</span></span></tt>, or <tt class="docutils literal"><span class="pre"><span class="Identifier">PascalCase</span></span></tt> in your code and expect Fiber ORM to be able to map the names to DB identifier names properly (though FiberORM will always use <tt class="docutils literal"><span class="pre"><span class="Identifier">camelCase</span></span></tt> internally).</p>
+<p>See the <a class="reference external" href="fiber_orm/util.html#identNameToDb,string">identNameToDb</a>, <a class="reference external" href="fiber_orm/util.html#dbNameToIdent,string">dbNameToIdent</a>, <a class="reference external" href="fiber_orm/util.html#tableName,type">tableName</a> and <a class="reference external" href="fiber_orm/util.html#dbFormat,DateTime">dbFormat</a> procedures in the <a class="reference internal" href="#fiber">fiber</a> module for details.</p>
+
+<h3><a class="toc-backref" id="model-class-id-field" href="#model-class-id-field">ID Field</a></h3><p>Fiber ORM expects every model class to have a field named <tt class="docutils literal"><span class="pre"><span class="Identifier">id</span></span></tt>, with a corresponding <tt class="docutils literal"><span class="pre"><span class="Identifier">id</span></span></tt> column in the model table. This field must be either a <tt class="docutils literal"><span class="pre"><span class="Identifier">string</span></span></tt>, <tt class="docutils literal"><span class="pre"><span class="Identifier">integer</span></span></tt>, or <a class="reference external" href="https://github.com/pragmagic/uuids">UUID</a>.</p>
+<p>When creating a new record the <tt class="docutils literal"><span class="pre"><span class="Identifier">id</span></span></tt> field will be omitted if it is empty (<a class="reference external" href="https://nim-lang.org/docs/options.html#isNone,Option[T]">Option.isNone</a>, <a class="reference external" href="https://github.com/pragmagic/uuids/blob/8cb8720b567c6bcb261bd1c0f7491bdb5209ad06/uuids.nim#L72">UUID.isZero</a>, value of <tt class="docutils literal"><span class="pre"><span class="DecNumber">0</span></span></tt>, or only whitespace).  This is intended to allow for cases like the example where the database may generate an ID when a new record is inserted. If a non-zero value is provided, the create call will include the <tt class="docutils literal"><span class="pre"><span class="Identifier">id</span></span></tt> field in the <tt class="docutils literal"><span class="pre"><span class="Identifier">INSERT</span></span></tt> query.</p>
+<p>For example, to allow the database to create the id:</p>
+<pre class="listing"><span class="Keyword">let</span> <span class="Identifier">item</span> <span class="Operator">=</span> <span class="Identifier">TodoItem</span><span class="Punctuation">(</span>
+  <span class="Identifier">owner</span><span class="Punctuation">:</span> <span class="StringLit">&quot;John Mann&quot;</span><span class="Punctuation">,</span>
+  <span class="Identifier">summary</span><span class="Punctuation">:</span> <span class="StringLit">&quot;Create a grocery list.&quot;</span><span class="Punctuation">,</span>
+  <span class="Identifier">details</span><span class="Punctuation">:</span> <span class="Identifier">none</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">]</span><span class="Punctuation">(</span><span class="Punctuation">)</span><span class="Punctuation">,</span>
+  <span class="Identifier">priority</span><span class="Punctuation">:</span> <span class="DecNumber">0</span><span class="Punctuation">,</span>
+  <span class="Identifier">relatedTodoItemIds</span><span class="Punctuation">:</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="Punctuation">]</span><span class="Punctuation">)</span>
+
+<span class="Keyword">let</span> <span class="Identifier">itemWithId</span> <span class="Operator">=</span> <span class="Identifier">db</span><span class="Operator">.</span><span class="Identifier">createTodoItem</span><span class="Punctuation">(</span><span class="Identifier">item</span><span class="Punctuation">)</span>
+<span class="Identifier">echo</span> <span class="Operator">$</span><span class="Identifier">itemWithId</span><span class="Operator">.</span><span class="Identifier">id</span> <span class="Comment"># generated in the database</span></pre><p>And to create it in code:</p>
+<pre class="listing"><span class="Keyword">import</span> <span class="Identifier">uuids</span>
+
+<span class="Keyword">let</span> <span class="Identifier">item</span> <span class="Operator">=</span> <span class="Identifier">TodoItem</span><span class="Punctuation">(</span>
+  <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">genUUID</span><span class="Punctuation">(</span><span class="Punctuation">)</span><span class="Punctuation">,</span>
+  <span class="Identifier">owner</span><span class="Punctuation">:</span> <span class="StringLit">&quot;John Mann&quot;</span><span class="Punctuation">,</span>
+  <span class="Identifier">summary</span><span class="Punctuation">:</span> <span class="StringLit">&quot;Create a grocery list.&quot;</span><span class="Punctuation">,</span>
+  <span class="Identifier">details</span><span class="Punctuation">:</span> <span class="Identifier">none</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">]</span><span class="Punctuation">(</span><span class="Punctuation">)</span><span class="Punctuation">,</span>
+  <span class="Identifier">priority</span><span class="Punctuation">:</span> <span class="DecNumber">0</span><span class="Punctuation">,</span>
+  <span class="Identifier">relatedTodoItemIds</span><span class="Punctuation">:</span> <span class="Operator">@</span><span class="Punctuation">[</span><span class="Punctuation">]</span><span class="Punctuation">)</span>
+
+<span class="Keyword">let</span> <span class="Identifier">itemInDb</span> <span class="Operator">=</span> <span class="Identifier">db</span><span class="Operator">.</span><span class="Identifier">createTodoItem</span><span class="Punctuation">(</span><span class="Identifier">item</span><span class="Punctuation">)</span>
+<span class="Identifier">echo</span> <span class="Operator">$</span><span class="Identifier">itemInDb</span><span class="Operator">.</span><span class="Identifier">id</span> <span class="Comment"># will be the same as what was provided</span></pre>
+<h2><a class="toc-backref" id="objectminusrelational-modeling-supported-data-types" href="#objectminusrelational-modeling-supported-data-types">Supported Data Types</a></h2><p>The following Nim data types are supported by Fiber ORM:</p>
+<table border="1" class="docutils"><tr><th>Nim Type</th><th>Postgres Type</th><th>SQLite Type</th></tr>
+<tr><td><tt class="docutils literal"><span class="pre"><span class="Identifier">string</span></span></tt></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-character.html">varchar</a></td><td></td></tr>
+<tr><td><tt class="docutils literal"><span class="pre"><span class="Identifier">int</span></span></tt></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-numeric.html#DATATYPE-INT">integer</a></td><td></td></tr>
+<tr><td><tt class="docutils literal"><span class="pre"><span class="Identifier">float</span></span></tt></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-numeric.html#DATATYPE-FLOAT">double</a></td><td></td></tr>
+<tr><td><tt class="docutils literal"><span class="pre"><span class="Identifier">bool</span></span></tt></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-boolean.html">boolean</a></td><td></td></tr>
+<tr><td><a class="reference external" href="https://nim-lang.org/docs/times.html#DateTime">DateTime</a></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-datetime.html">timestamp</a></td><td></td></tr>
+<tr><td><tt class="docutils literal"><span class="pre"><span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Punctuation">]</span></span></tt></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/arrays.html">array</a></td><td></td></tr>
+<tr><td><a class="reference external" href="https://github.com/pragmagic/uuids">UUID</a></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-uuid.html">uuid (pg)</a></td><td></td></tr>
+<tr><td><a class="reference external" href="https://nim-lang.org/docs/options.html#Option">Option</a></td><td><em>allows</em> <tt class="docutils literal"><span class="pre"><span class="Identifier">NULL</span></span></tt> <sup><strong><a class="reference internal" href="#footnote-f1">[1]</a></strong></sup></td><td></td></tr>
+<tr><td><a class="reference external" href="https://nim-lang.org/docs/json.html#JsonNode">JsonNode</a></td><td><a class="reference external" href="https://www.postgresql.org/docs/current/datatype-json.html">jsonb</a></td><td></td></tr>
+</table><hr class="footnote"><div class="footnote-group">
+<div id="footnote-f1"><div class="footnote-label"><sup><strong><a href="#footnote-f1">[1]</a></strong></sup></div> &ensp; Note that this implies that all <tt class="docutils literal"><span class="pre"><span class="Identifier">NULL</span></span></tt>-able fields should be typed as optional using <tt class="docutils literal"><span class="pre"><span class="Identifier">Option</span><span class="Punctuation">[</span><span class="Identifier">fieldType</span><span class="Punctuation">]</span></span></tt>. Conversely, any fields with non-optional types should also be constrained to be <tt class="docutils literal"><span class="pre"><span class="Keyword">NOT</span> <span class="Identifier">NULL</span></span></tt> in the database schema.
+</div>
+</div>
+
+<h1><a class="toc-backref" id="database-object" href="#database-object">Database Object</a></h1><p>Many of the Fiber ORM macros expect a database object type to be passed. In the example above the <a class="reference external" href="fiber_orm/pool.html#DbConnPool">pool.DbConnPool</a> object is used as database object type (aliased as <tt class="docutils literal"><span class="pre"><span class="Identifier">TodoDB</span></span></tt>). This is the intended usage pattern, but anything can be passed as the database object type so long as there is a defined <tt class="docutils literal"><span class="pre"><span class="Identifier">withConn</span></span></tt> template that provides an injected <tt class="docutils literal"><span class="pre"><span class="Identifier">conn</span><span class="Punctuation">:</span> <span class="Identifier">DbConn</span></span></tt> object to the provided statement body.</p>
+<p>For example, a valid database object implementation that opens a new connection for every request might look like this:</p>
+<pre class="listing"><span class="Keyword">import</span> <span class="Identifier">std</span><span class="Operator">/</span><span class="Identifier">db_postgres</span>
+
+<span class="Keyword">type</span> <span class="Identifier">TodoDB</span><span class="Operator">*</span> <span class="Operator">=</span> <span class="Keyword">object</span>
+  <span class="Identifier">connString</span><span class="Punctuation">:</span> <span class="Identifier">string</span>
+
+<span class="Keyword">template</span> <span class="Identifier">withConn</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">stmt</span><span class="Punctuation">:</span> <span class="Identifier">untyped</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">untyped</span> <span class="Operator">=</span>
+  <span class="Keyword">let</span> <span class="Identifier">conn</span> <span class="Punctuation">{</span><span class="Operator">.</span><span class="Identifier">inject</span><span class="Operator">.</span><span class="Punctuation">}</span> <span class="Operator">=</span> <span class="Identifier">open</span><span class="Punctuation">(</span><span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;&quot;</span><span class="Punctuation">,</span> <span class="Identifier">db</span><span class="Operator">.</span><span class="Identifier">connString</span><span class="Punctuation">)</span>
+  <span class="Keyword">try</span><span class="Punctuation">:</span> <span class="Identifier">stmt</span>
+  <span class="Keyword">finally</span><span class="Punctuation">:</span> <span class="Identifier">close</span><span class="Punctuation">(</span><span class="Identifier">conn</span><span class="Punctuation">)</span></pre>
+<h1><a class="toc-backref" id="see-also" href="#see-also">See Also</a></h1><p><a class="reference external" href="fiber_orm/pool.html">fiber_orm/pool</a></p>
+</p>
+  <div class="section" id="6">
+<h1><a class="toc-backref" href="#6">Imports</a></h1>
+<dl class="item">
+<a class="reference external" href="fiber_orm/pool.html">fiber_orm/pool</a>, <a class="reference external" href="fiber_orm/util.html">fiber_orm/util</a>
+</dl></div>
+<div class="section" id="7">
+<h1><a class="toc-backref" href="#7">Types</a></h1>
+<dl class="item">
+<div id="NotFoundError">
+<dt><pre><a href="fiber_orm.html#NotFoundError"><span class="Identifier">NotFoundError</span></a> <span class="Other">=</span> <span class="Keyword">object</span> <span class="Keyword">of</span> <span class="Identifier">CatchableError</span></pre></dt>
+<dd>
+
+
+ Error type raised when no record matches a given ID
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L299"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L299" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+
+</dl></div>
+<div class="section" id="12">
+<h1><a class="toc-backref" href="#12">Procs</a></h1>
+<dl class="item">
+<div id="createRecord,DbConn,T">
+<dt><pre><span class="Keyword">proc</span> <a href="#createRecord%2CDbConn%2CT"><span class="Identifier">createRecord</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">rec</span><span class="Other">:</span> <span class="Identifier">T</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">T</span></pre></dt>
+<dd>
+
+<p>Create a new record. <tt class="docutils literal"><span class="pre"><span class="Identifier">rec</span></span></tt> is expected to be a <a class="reference external" href="#objectminusrelational-modeling-model-class">model class</a>. The <tt class="docutils literal"><span class="pre"><span class="Identifier">id</span></span></tt> field is only set if it is non-empty (see <a class="reference external" href="#model-class-id-field">ID Field</a> for details).</p>
+<p>Returns the newly created record.</p>
+
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L314"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L314" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="deleteRecord,DbConn,T">
+<dt><pre><span class="Keyword">proc</span> <a href="#deleteRecord%2CDbConn%2CT"><span class="Identifier">deleteRecord</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">rec</span><span class="Other">:</span> <span class="Identifier">T</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span></pre></dt>
+<dd>
+
+Delete a record by <a class="reference external" href="#model-class-id-field">id</a>.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L359"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L359" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="initPool,proc),int,string">
+<dt><pre><span class="Keyword">proc</span> <a href="#initPool%2Cproc%29%2Cint%2Cstring"><span class="Identifier">initPool</span></a><span class="Other">(</span><span class="Identifier">connect</span><span class="Other">:</span> <span class="Keyword">proc</span> <span class="Other">(</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">poolSize</span> <span class="Other">=</span> <span class="DecNumber">10</span><span class="Other">;</span> <span class="Identifier">hardCap</span> <span class="Other">=</span> <span class="Identifier">false</span><span class="Other">;</span>
+              <span class="Identifier">healthCheckQuery</span> <span class="Other">=</span> <span class="StringLit">&quot;SELECT \'true\' AS alive&quot;</span><span class="Other">)</span><span class="Other">:</span> <a href="fiber_orm/pool.html#DbConnPool"><span class="Identifier">DbConnPool</span></a> {.
+    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">Exception</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Identifier">RootEffect</span><span class="Other">]</span></span>.}</pre></dt>
+<dd>
+
+Initialize a new DbConnPool. See the <tt class="docutils literal"><span class="pre"><span class="Identifier">initDb</span></span></tt> procedure in the <a class="reference external" href="#basic-usage-example-fiber-orm-usage">Example Fiber ORM Usage</a> for an example<ul class="simple"><li><tt class="docutils literal"><span class="pre"><span class="Identifier">connect</span></span></tt> must be a factory which creates a new <tt class="docutils literal"><span class="pre"><span class="Identifier">DbConn</span></span></tt>.</li>
+<li><tt class="docutils literal"><span class="pre"><span class="Identifier">poolSize</span></span></tt> sets the desired capacity of the connection pool.</li>
+<li><p><tt class="docutils literal"><span class="pre"><span class="Identifier">hardCap</span></span></tt> defaults to <tt class="docutils literal"><span class="pre"><span class="Identifier">false</span></span></tt>. When <tt class="docutils literal"><span class="pre"><span class="Identifier">false</span></span></tt>, the pool can grow beyond the configured capacity, but will release connections down to the its capacity (no less than <tt class="docutils literal"><span class="pre"><span class="Identifier">poolSize</span></span></tt>).</p>
+<p>When <tt class="docutils literal"><span class="pre"><span class="Identifier">true</span></span></tt> the pool will not create more than its configured capacity. It a connection is requested, none are free, and the pool is at capacity, this will result in an Error being raised.</p>
+</li>
+<li><tt class="docutils literal"><span class="pre"><span class="Identifier">healthCheckQuery</span></span></tt> should be a simple and fast SQL query that the pool can use to test the liveliness of pooled connections.</li>
+</ul>
+
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L539"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L539" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="updateRecord,DbConn,T">
+<dt><pre><span class="Keyword">proc</span> <a href="#updateRecord%2CDbConn%2CT"><span class="Identifier">updateRecord</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">rec</span><span class="Other">:</span> <span class="Identifier">T</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span></pre></dt>
+<dd>
+
+Update a record by id. <tt class="docutils literal"><span class="pre"><span class="Identifier">rec</span></span></tt> is expected to be a <a class="reference external" href="#objectminusrelational-modeling-model-class">model class</a>.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L337"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L337" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+
+</dl></div>
+<div class="section" id="17">
+<h1><a class="toc-backref" href="#17">Macros</a></h1>
+<dl class="item">
+<div id="generateLookup.m,type,type,seq[string]">
+<dt><pre><span class="Keyword">macro</span> <a href="#generateLookup.m%2Ctype%2Ctype%2Cseq%5Bstring%5D"><span class="Identifier">generateLookup</span></a><span class="Other">(</span><span class="Identifier">dbType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">;</span> <span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">;</span> <span class="Identifier">fields</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+Create a lookup procedure for a given set of field names. For example, given the TODO database demostrated above,<pre class="listing"><span class="Identifier">generateLookup</span><span class="Punctuation">(</span><span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">TodoItem</span><span class="Punctuation">,</span> <span class="Punctuation">[</span><span class="StringLit">&quot;owner&quot;</span><span class="Punctuation">,</span> <span class="StringLit">&quot;priority&quot;</span><span class="Punctuation">]</span><span class="Punctuation">)</span></pre><p>will generate the following procedure:</p>
+<pre class="listing"><span class="Keyword">proc</span> <span class="Identifier">findTodoItemsByOwnerAndPriority</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">SampleDB</span><span class="Punctuation">,</span>
+  <span class="Identifier">owner</span><span class="Punctuation">:</span> <span class="Identifier">string</span><span class="Punctuation">,</span> <span class="Identifier">priority</span><span class="Punctuation">:</span> <span class="Identifier">int</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">TodoItem</span><span class="Punctuation">]</span></pre>
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L468"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L468" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="generateProcsForFieldLookups.m,type,openArray[tuple[type,seq[string]]]">
+<dt><pre><span class="Keyword">macro</span> <a href="#generateProcsForFieldLookups.m%2Ctype%2CopenArray%5Btuple%5Btype%2Cseq%5Bstring%5D%5D%5D"><span class="Identifier">generateProcsForFieldLookups</span></a><span class="Other">(</span><span class="Identifier">dbType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">;</span> <span class="Identifier">modelsAndFields</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span>
+    <span class="Keyword">tuple</span><span class="Other">[</span><span class="Identifier">t</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">,</span> <span class="Identifier">fields</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">]</span><span class="Other">]</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L510"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L510" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="generateProcsForModels.m,type,openArray[type]">
+<dt><pre><span class="Keyword">macro</span> <a href="#generateProcsForModels.m%2Ctype%2CopenArray%5Btype%5D"><span class="Identifier">generateProcsForModels</span></a><span class="Other">(</span><span class="Identifier">dbType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">;</span> <span class="Identifier">modelTypes</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">type</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+Generate all standard access procedures for the given model types. For a <a class="reference external" href="#objectminusrelational-modeling-model-class">model class</a> named <tt class="docutils literal"><span class="pre"><span class="Identifier">TodoItem</span></span></tt>, this will generate the following procedures:<pre class="listing"><span class="Keyword">proc</span> <span class="Identifier">getTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">idType</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">getAllTodoItems</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">createTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">deleteTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">deleteTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">id</span><span class="Punctuation">:</span> <span class="Identifier">idType</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+<span class="Keyword">proc</span> <span class="Identifier">updateTodoItem</span><span class="Operator">*</span><span class="Punctuation">(</span><span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">rec</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">bool</span><span class="Punctuation">;</span>
+
+<span class="Keyword">proc</span> <span class="Identifier">findTodoItemsWhere</span><span class="Operator">*</span><span class="Punctuation">(</span>
+  <span class="Identifier">db</span><span class="Punctuation">:</span> <span class="Identifier">TodoDB</span><span class="Punctuation">,</span> <span class="Identifier">whereClause</span><span class="Punctuation">:</span> <span class="Identifier">string</span><span class="Punctuation">,</span> <span class="Identifier">values</span><span class="Punctuation">:</span> <span class="Identifier">varargs</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">]</span><span class="Punctuation">)</span><span class="Punctuation">:</span> <span class="Identifier">TodoItem</span><span class="Punctuation">;</span></pre><p><tt class="docutils literal"><span class="pre"><span class="Identifier">dbType</span></span></tt> is expected to be some type that has a defined <tt class="docutils literal"><span class="pre"><span class="Identifier">withConn</span></span></tt> procedure (see <a class="reference external" href="#database-object">Database Object</a> for details).</p>
+
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L414"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L414" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+
+</dl></div>
+<div class="section" id="18">
+<h1><a class="toc-backref" href="#18">Templates</a></h1>
+<dl class="item">
+<div id="deleteRecord.t,DbConn,type,typed">
+<dt><pre><span class="Keyword">template</span> <a href="#deleteRecord.t%2CDbConn%2Ctype%2Ctyped"><span class="Identifier">deleteRecord</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">;</span> <span class="Identifier">id</span><span class="Other">:</span> <span class="Identifier">typed</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+Delete a record by id.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L353"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L353" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="findRecordsBy.t,DbConn,type,seq[tuple[string,string]]">
+<dt><pre><span class="Keyword">template</span> <a href="#findRecordsBy.t%2CDbConn%2Ctype%2Cseq%5Btuple%5Bstring%2Cstring%5D%5D"><span class="Identifier">findRecordsBy</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">;</span>
+                       <span class="Identifier">lookups</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Keyword">tuple</span><span class="Other">[</span><span class="Identifier">field</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">,</span> <span class="Identifier">value</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">]</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+Find all records matching the provided lookup values.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L403"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L403" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="findRecordsWhere.t,DbConn,type,string,varargs[string,dbFormat]">
+<dt><pre><span class="Keyword">template</span> <a href="#findRecordsWhere.t%2CDbConn%2Ctype%2Cstring%2Cvarargs%5Bstring%2CdbFormat%5D"><span class="Identifier">findRecordsWhere</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">;</span> <span class="Identifier">whereClause</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">;</span>
+                          <span class="Identifier">values</span><span class="Other">:</span> <span class="Identifier">varargs</span><span class="Other">[</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Identifier">dbFormat</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+Find all records matching a given <tt class="docutils literal"><span class="pre"><span class="Identifier">WHERE</span></span></tt> clause. The number of elements in the <tt class="docutils literal"><span class="pre"><span class="Identifier">values</span></span></tt> array must match the number of placeholders (<tt class="docutils literal"><span class="pre"><span class="Operator">?</span></span></tt>) in the provided <tt class="docutils literal"><span class="pre"><span class="Identifier">WHERE</span></span></tt> clause.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L382"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L382" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="getAllRecords.t,DbConn,type">
+<dt><pre><span class="Keyword">template</span> <a href="#getAllRecords.t%2CDbConn%2Ctype"><span class="Identifier">getAllRecords</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+Fetch all records of the given type.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L394"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L394" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="getRecord.t,DbConn,type,typed">
+<dt><pre><span class="Keyword">template</span> <a href="#getRecord.t%2CDbConn%2Ctype%2Ctyped"><span class="Identifier">getRecord</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <span class="Identifier">DbConn</span><span class="Other">;</span> <span class="Identifier">modelType</span><span class="Other">:</span> <span class="Identifier">type</span><span class="Other">;</span> <span class="Identifier">id</span><span class="Other">:</span> <span class="Identifier">typed</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
+<dd>
+
+Fetch a record by id.
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L367"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L367" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+<div id="inTransaction.t,DbConnPool,untyped">
+<dt><pre><span class="Keyword">template</span> <a href="#inTransaction.t%2CDbConnPool%2Cuntyped"><span class="Identifier">inTransaction</span></a><span class="Other">(</span><span class="Identifier">db</span><span class="Other">:</span> <a href="fiber_orm/pool.html#DbConnPool"><span class="Identifier">DbConnPool</span></a><span class="Other">;</span> <span class="Identifier">body</span><span class="Other">:</span> <span class="Identifier">untyped</span><span class="Other">)</span></pre></dt>
+<dd>
+
+
+&nbsp;&nbsp;<a
+href="https://github.com/jdbernard/fiber-orm/tree/version-1-6/src/fiber_orm.nim#L567"
+class="link-seesrc" target="_blank">Source</a>
+&nbsp;&nbsp;<a href="https://github.com/jdbernard/fiber-orm/edit/devel/src/fiber_orm.nim#L567" class="link-seesrc" target="_blank" >Edit</a>
+
+</dd>
+</div>
+
+</dl></div>
+<div class="section" id="19">
+<h1><a class="toc-backref" href="#19">Exports</a></h1>
+<dl class="item">
+<a href="fiber_orm/pool.html#DbConnPoolConfig"><span class="Identifier">DbConnPoolConfig</span></a>, <a href="fiber_orm/pool.html#initDbConnPool,DbConnPoolConfig"><span class="Identifier">initDbConnPool</span></a>, <a href="fiber_orm/pool.html#withConn.t,DbConnPool,untyped"><span class="Identifier">withConn</span></a>, <a href="fiber_orm/pool.html#take,DbConnPool"><span class="Identifier">take</span></a>, <a href="fiber_orm/pool.html#DbConnPool"><span class="Identifier">DbConnPool</span></a>, <a href="fiber_orm/pool.html#release,DbConnPool,int"><span class="Identifier">release</span></a>, <a href="fiber_orm/util.html#columnNamesForModel.m,typed"><span class="Identifier">columnNamesForModel</span></a>, <a href="fiber_orm/util.html#dbFormat,DateTime"><span class="Identifier">dbFormat</span></a>, <a href="fiber_orm/util.html#dbFormat,seq[T]"><span class="Identifier">dbFormat</span></a>, <a href="fiber_orm/util.html#dbFormat,string"><span class="Identifier">dbFormat</span></a>, <a href="fiber_orm/util.html#dbFormat,T"><span class="Identifier">dbFormat</span></a>, <a href="fiber_orm/util.html#dbNameToIdent,string"><span class="Identifier">dbNameToIdent</span></a>, <a href="fiber_orm/util.html#identNameToDb,string"><span class="Identifier">identNameToDb</span></a>, <a href="fiber_orm/util.html#modelName.m,type"><span class="Identifier">modelName</span></a>, <a href="fiber_orm/util.html#modelName.m"><span class="Identifier">modelName</span></a>, <a href="fiber_orm/util.html#rowToModel.m,typed,seq[string]"><span class="Identifier">rowToModel</span></a>, <a href="fiber_orm/util.html#tableName,type"><span class="Identifier">tableName</span></a>, <a href="fiber_orm/util.html#tableName,T"><span class="Identifier">tableName</span></a>
+</dl></div>
+
+  </div>
+</div>
+
+    <div class="row">
+      <div class="twelve-columns footer">
+        <span class="nim-sprite"></span>
+        <br/>
+        <small style="color: var(--hint);">Made with Nim. Generated: 2022-09-04 02:31:20 UTC</small>
+      </div>
+    </div>
+  </div>
+</div>
+
+</body>
+</html>

docs/theindex.html

@@ -0,0 +1,246 @@
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+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<!--  This file is generated by Nim. -->
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+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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+    <h1 class="title">Index</h1>
+    Modules: <a href="fiber_orm.html">fiber_orm</a>, <a href="fiber_orm/pool.html">fiber_orm/pool</a>, <a href="fiber_orm/util.html">fiber_orm/util</a>.<br/><p /><h2>API symbols</h2>
+<dl><dt><a name="columnNamesForModel" href="#columnNamesForModel"><span>columnNamesForModel:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="util: columnNamesForModel(modelType: typed): seq[string]" href="fiber_orm/util.html#columnNamesForModel.m%2Ctyped">util: columnNamesForModel(modelType: typed): seq[string]</a></li>
+          </ul></dd>
+<dt><a name="createParseStmt" href="#createParseStmt"><span>createParseStmt:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="util: createParseStmt(t, value: NimNode): NimNode" href="fiber_orm/util.html#createParseStmt%2CNimNode%2CNimNode">util: createParseStmt(t, value: NimNode): NimNode</a></li>
+          </ul></dd>
+<dt><a name="createRecord" href="#createRecord"><span>createRecord:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="fiber_orm: createRecord[T](db: DbConn; rec: T): T" href="fiber_orm.html#createRecord%2CDbConn%2CT">fiber_orm: createRecord[T](db: DbConn; rec: T): T</a></li>
+          </ul></dd>
+<dt><a name="DbConnPool" href="#DbConnPool"><span>DbConnPool:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="pool: DbConnPool" href="fiber_orm/pool.html#DbConnPool">pool: DbConnPool</a></li>
+          </ul></dd>
+<dt><a name="DbConnPoolConfig" href="#DbConnPoolConfig"><span>DbConnPoolConfig:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="pool: DbConnPoolConfig" href="fiber_orm/pool.html#DbConnPoolConfig">pool: DbConnPoolConfig</a></li>
+          </ul></dd>
+<dt><a name="dbFormat" href="#dbFormat"><span>dbFormat:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="util: dbFormat(dt: DateTime): string" href="fiber_orm/util.html#dbFormat%2CDateTime">util: dbFormat(dt: DateTime): string</a></li>
+          <li><a class="reference external"
+          data-doc-search-tag="util: dbFormat[T](list: seq[T]): string" href="fiber_orm/util.html#dbFormat%2Cseq%5BT%5D">util: dbFormat[T](list: seq[T]): string</a></li>
+          <li><a class="reference external"
+          data-doc-search-tag="util: dbFormat(s: string): string" href="fiber_orm/util.html#dbFormat%2Cstring">util: dbFormat(s: string): string</a></li>
+          <li><a class="reference external"
+          data-doc-search-tag="util: dbFormat[T](item: T): string" href="fiber_orm/util.html#dbFormat%2CT">util: dbFormat[T](item: T): string</a></li>
+          </ul></dd>
+<dt><a name="dbNameToIdent" href="#dbNameToIdent"><span>dbNameToIdent:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="util: dbNameToIdent(name: string): string" href="fiber_orm/util.html#dbNameToIdent%2Cstring">util: dbNameToIdent(name: string): string</a></li>
+          </ul></dd>
+<dt><a name="deleteRecord" href="#deleteRecord"><span>deleteRecord:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="fiber_orm: deleteRecord[T](db: DbConn; rec: T): bool" href="fiber_orm.html#deleteRecord%2CDbConn%2CT">fiber_orm: deleteRecord[T](db: DbConn; rec: T): bool</a></li>
+          <li><a class="reference external"
+          data-doc-search-tag="fiber_orm: deleteRecord(db: DbConn; modelType: type; id: typed): untyped" href="fiber_orm.html#deleteRecord.t%2CDbConn%2Ctype%2Ctyped">fiber_orm: deleteRecord(db: DbConn; modelType: type; id: typed): untyped</a></li>
+          </ul></dd>
+<dt><a name="findRecordsBy" href="#findRecordsBy"><span>findRecordsBy:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="fiber_orm: findRecordsBy(db: DbConn; modelType: type;
+              lookups: seq[tuple[field: string, value: string]]): untyped" href="fiber_orm.html#findRecordsBy.t%2CDbConn%2Ctype%2Cseq%5Btuple%5Bstring%2Cstring%5D%5D">fiber_orm: findRecordsBy(db: DbConn; modelType: type;
+              lookups: seq[tuple[field: string, value: string]]): untyped</a></li>
+          </ul></dd>
+<dt><a name="findRecordsWhere" href="#findRecordsWhere"><span>findRecordsWhere:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="fiber_orm: findRecordsWhere(db: DbConn; modelType: type; whereClause: string;
+                 values: varargs[string, dbFormat]): untyped" href="fiber_orm.html#findRecordsWhere.t%2CDbConn%2Ctype%2Cstring%2Cvarargs%5Bstring%2CdbFormat%5D">fiber_orm: findRecordsWhere(db: DbConn; modelType: type; whereClause: string;
+                 values: varargs[string, dbFormat]): untyped</a></li>
+          </ul></dd>
+<dt><a name="generateLookup" href="#generateLookup"><span>generateLookup:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="fiber_orm: generateLookup(dbType: type; modelType: type; fields: seq[string]): untyped" href="fiber_orm.html#generateLookup.m%2Ctype%2Ctype%2Cseq%5Bstring%5D">fiber_orm: generateLookup(dbType: type; modelType: type; fields: seq[string]): untyped</a></li>
+          </ul></dd>
+<dt><a name="generateProcsForFieldLookups" href="#generateProcsForFieldLookups"><span>generateProcsForFieldLookups:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="fiber_orm: generateProcsForFieldLookups(dbType: type; modelsAndFields: openArray[
+    tuple[t: type, fields: seq[string]]]): untyped" href="fiber_orm.html#generateProcsForFieldLookups.m%2Ctype%2CopenArray%5Btuple%5Btype%2Cseq%5Bstring%5D%5D%5D">fiber_orm: generateProcsForFieldLookups(dbType: type; modelsAndFields: openArray[
+    tuple[t: type, fields: seq[string]]]): untyped</a></li>
+          </ul></dd>
+<dt><a name="generateProcsForModels" href="#generateProcsForModels"><span>generateProcsForModels:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="fiber_orm: generateProcsForModels(dbType: type; modelTypes: openArray[type]): untyped" href="fiber_orm.html#generateProcsForModels.m%2Ctype%2CopenArray%5Btype%5D">fiber_orm: generateProcsForModels(dbType: type; modelTypes: openArray[type]): untyped</a></li>
+          </ul></dd>
+<dt><a name="getAllRecords" href="#getAllRecords"><span>getAllRecords:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="fiber_orm: getAllRecords(db: DbConn; modelType: type): untyped" href="fiber_orm.html#getAllRecords.t%2CDbConn%2Ctype">fiber_orm: getAllRecords(db: DbConn; modelType: type): untyped</a></li>
+          </ul></dd>
+<dt><a name="getRecord" href="#getRecord"><span>getRecord:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="fiber_orm: getRecord(db: DbConn; modelType: type; id: typed): untyped" href="fiber_orm.html#getRecord.t%2CDbConn%2Ctype%2Ctyped">fiber_orm: getRecord(db: DbConn; modelType: type; id: typed): untyped</a></li>
+          </ul></dd>
+<dt><a name="identNameToDb" href="#identNameToDb"><span>identNameToDb:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="util: identNameToDb(name: string): string" href="fiber_orm/util.html#identNameToDb%2Cstring">util: identNameToDb(name: string): string</a></li>
+          </ul></dd>
+<dt><a name="initDbConnPool" href="#initDbConnPool"><span>initDbConnPool:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="pool: initDbConnPool(cfg: DbConnPoolConfig): DbConnPool" href="fiber_orm/pool.html#initDbConnPool%2CDbConnPoolConfig">pool: initDbConnPool(cfg: DbConnPoolConfig): DbConnPool</a></li>
+          </ul></dd>
+<dt><a name="initPool" href="#initPool"><span>initPool:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="fiber_orm: initPool(connect: proc (): DbConn; poolSize = 10; hardCap = false;
+         healthCheckQuery = &quot;SELECT \&apos;true\&apos; AS alive&quot;): DbConnPool" href="fiber_orm.html#initPool%2Cproc%29%2Cint%2Cstring">fiber_orm: initPool(connect: proc (): DbConn; poolSize = 10; hardCap = false;
+         healthCheckQuery = &quot;SELECT \&apos;true\&apos; AS alive&quot;): DbConnPool</a></li>
+          </ul></dd>
+<dt><a name="inTransaction" href="#inTransaction"><span>inTransaction:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="fiber_orm: inTransaction(db: DbConnPool; body: untyped)" href="fiber_orm.html#inTransaction.t%2CDbConnPool%2Cuntyped">fiber_orm: inTransaction(db: DbConnPool; body: untyped)</a></li>
+          </ul></dd>
+<dt><a name="listFields" href="#listFields"><span>listFields:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="util: listFields(t: typed): untyped" href="fiber_orm/util.html#listFields.m%2Ctyped">util: listFields(t: typed): untyped</a></li>
+          </ul></dd>
+<dt><a name="modelName" href="#modelName"><span>modelName:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="util: modelName(model: object): string" href="fiber_orm/util.html#modelName.m">util: modelName(model: object): string</a></li>
+          <li><a class="reference external"
+          data-doc-search-tag="util: modelName(modelType: type): string" href="fiber_orm/util.html#modelName.m%2Ctype">util: modelName(modelType: type): string</a></li>
+          </ul></dd>
+<dt><a name="MutateClauses" href="#MutateClauses"><span>MutateClauses:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="util: MutateClauses" href="fiber_orm/util.html#MutateClauses">util: MutateClauses</a></li>
+          </ul></dd>
+<dt><a name="NotFoundError" href="#NotFoundError"><span>NotFoundError:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="fiber_orm: NotFoundError" href="fiber_orm.html#NotFoundError">fiber_orm: NotFoundError</a></li>
+          </ul></dd>
+<dt><a name="parseDbArray" href="#parseDbArray"><span>parseDbArray:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="util: parseDbArray(val: string): seq[string]" href="fiber_orm/util.html#parseDbArray%2Cstring">util: parseDbArray(val: string): seq[string]</a></li>
+          </ul></dd>
+<dt><a name="parsePGDatetime" href="#parsePGDatetime"><span>parsePGDatetime:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="util: parsePGDatetime(val: string): DateTime" href="fiber_orm/util.html#parsePGDatetime%2Cstring">util: parsePGDatetime(val: string): DateTime</a></li>
+          </ul></dd>
+<dt><a name="pluralize" href="#pluralize"><span>pluralize:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="util: pluralize(name: string): string" href="fiber_orm/util.html#pluralize%2Cstring">util: pluralize(name: string): string</a></li>
+          </ul></dd>
+<dt><a name="populateMutateClauses" href="#populateMutateClauses"><span>populateMutateClauses:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="util: populateMutateClauses(t: typed; newRecord: bool; mc: var MutateClauses): untyped" href="fiber_orm/util.html#populateMutateClauses.m%2Ctyped%2Cbool%2CMutateClauses">util: populateMutateClauses(t: typed; newRecord: bool; mc: var MutateClauses): untyped</a></li>
+          </ul></dd>
+<dt><a name="release" href="#release"><span>release:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="pool: release(pool: DbConnPool; connId: int): void" href="fiber_orm/pool.html#release%2CDbConnPool%2Cint">pool: release(pool: DbConnPool; connId: int): void</a></li>
+          </ul></dd>
+<dt><a name="rowToModel" href="#rowToModel"><span>rowToModel:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="util: rowToModel(modelType: typed; row: seq[string]): untyped" href="fiber_orm/util.html#rowToModel.m%2Ctyped%2Cseq%5Bstring%5D">util: rowToModel(modelType: typed; row: seq[string]): untyped</a></li>
+          </ul></dd>
+<dt><a name="tableName" href="#tableName"><span>tableName:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="util: tableName[T](rec: T): string" href="fiber_orm/util.html#tableName%2CT">util: tableName[T](rec: T): string</a></li>
+          <li><a class="reference external"
+          data-doc-search-tag="util: tableName(modelType: type): string" href="fiber_orm/util.html#tableName%2Ctype">util: tableName(modelType: type): string</a></li>
+          </ul></dd>
+<dt><a name="take" href="#take"><span>take:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="pool: take(pool: DbConnPool): tuple[id: int, conn: DbConn]" href="fiber_orm/pool.html#take%2CDbConnPool">pool: take(pool: DbConnPool): tuple[id: int, conn: DbConn]</a></li>
+          </ul></dd>
+<dt><a name="typeOfColumn" href="#typeOfColumn"><span>typeOfColumn:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="util: typeOfColumn(modelType: NimNode; colName: string): NimNode" href="fiber_orm/util.html#typeOfColumn%2CNimNode%2Cstring">util: typeOfColumn(modelType: NimNode; colName: string): NimNode</a></li>
+          </ul></dd>
+<dt><a name="updateRecord" href="#updateRecord"><span>updateRecord:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="fiber_orm: updateRecord[T](db: DbConn; rec: T): bool" href="fiber_orm.html#updateRecord%2CDbConn%2CT">fiber_orm: updateRecord[T](db: DbConn; rec: T): bool</a></li>
+          </ul></dd>
+<dt><a name="walkFieldDefs" href="#walkFieldDefs"><span>walkFieldDefs:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="util: walkFieldDefs(t: NimNode; body: untyped)" href="fiber_orm/util.html#walkFieldDefs.t%2CNimNode%2Cuntyped">util: walkFieldDefs(t: NimNode; body: untyped)</a></li>
+          </ul></dd>
+<dt><a name="withConn" href="#withConn"><span>withConn:</span></a></dt><dd><ul class="simple">
+<li><a class="reference external"
+          data-doc-search-tag="pool: withConn(pool: DbConnPool; stmt: untyped): untyped" href="fiber_orm/pool.html#withConn.t%2CDbConnPool%2Cuntyped">pool: withConn(pool: DbConnPool; stmt: untyped): untyped</a></li>
+          </ul></dd>
+</dl>
+    <div class="row">
+      <div class="twelve-columns footer">
+        <span class="nim-sprite"></span>
+        <br/>
+        <small style="color: var(--hint);">Made with Nim. Generated: 2022-09-04 02:31:20 UTC</small>
+      </div>
+    </div>
+  </div>
+</div>
+
+</body>
+</html>

fiber_orm.nimble

@@ -1,6 +1,6 @@
 # Package
 
-version       = "1.0.2"
+version       = "4.1.0"
 author        = "Jonathan Bernard"
 description   = "Lightweight Postgres ORM for Nim."
 license       = "GPL-3.0"
@@ -10,5 +10,5 @@ srcDir        = "src"
 
 # Dependencies
 
-requires "nim >= 1.4.0"
-requires "https://git.jdb-software.com/jdb/nim-namespaced-logging.git"
+requires @["nim >= 1.4.0", "uuids"]
+requires "namespaced_logging >= 2.0.2"

src/fiber_orm.nim

@@ -1,28 +1,313 @@
-import std/db_postgres, std/macros, std/options, std/sequtils, std/strutils
-import namespaced_logging, uuids
+# Fiber ORM
+#
+# Copyright 2019-2024 Jonathan Bernard <jonathan@jdbernard.com>
+
+## Lightweight ORM supporting the `Postgres`_ and `SQLite`_ databases in Nim.
+## It supports a simple, opinionated model mapper to generate SQL queries based
+## on Nim objects. It also includes a simple connection pooling implementation.
+##
+## Fiber ORM is not intended to be a 100% all-cases-covered ORM that handles
+## every potential data access pattern one might wish to implement. It is best
+## thought of as a collection of common SQL generation patterns. It is intended
+## to cover 90% of the common queries and functions one might write when
+## implementing an SQL-based access layer. It is expected that there may be a
+## few more complicated queries that need to be implemented to handle specific
+## access patterns.
+##
+## The simple mapping pattern provided by Fiber ORM also works well on top of
+## databases that encapsulate data access logic in SQL with, for example,
+## views.
+##
+## .. _Postgres: https://nim-lang.org/docs/db_postgres.html
+## .. _SQLite: https://nim-lang.org/docs/db_sqlite.html
+##
+## Basic Usage
+## ===========
+##
+## Consider a simple TODO list application that keeps track of TODO items as
+## well as time logged against those items.
+##
+## Example DB Schema
+## -----------------
+##
+## You might have a schema such as:
+##
+## .. code-block:: SQL
+##    create extension if not exists "pgcrypto";
+##
+##    create table todo_items columns (
+##      id uuid not null primary key default gen_random_uuid(),
+##      owner varchar not null,
+##      summary varchar not null,
+##      details varchar default null,
+##      priority integer not null default 0,
+##      related_todo_item_ids uuid[] not null default '{}'
+##    );
+##
+##    create table time_entries columns (
+##      id uuid not null primary key default gen_random_uuid(),
+##      todo_item_id uuid not null references todo_items (id) on delete cascade,
+##      start timestamp with timezone not null default current_timestamp,
+##      stop timestamp with timezone default null,
+##    );
+##
+## Example Model Definitions
+## -------------------------
+##
+## Models may be defined as:
+##
+## .. code-block:: Nim
+##    # models.nim
+##    import std/options, std/times
+##    import uuids
+##
+##    type
+##      TodoItem* = object
+##        id*: UUID
+##        owner*: string
+##        summary*: string
+##        details*: Option[string]
+##        priority*: int
+##        relatedTodoItemIds*: seq[UUID]
+##
+##      TimeEntry* = object
+##        id*: UUID
+##        todoItemId*: Option[UUID]
+##        start*: DateTime
+##        stop*: Option[DateTime]
+##
+## Example Fiber ORM Usage
+## -----------------------
+##
+## Using Fiber ORM we can generate a data access layer with:
+##
+## .. code-block:: Nim
+##    # db.nim
+##    import std/db_postgres
+##    import fiber_orm
+##    import ./models.nim
+##
+##    type TodoDB* = DbConnPool
+##
+##    proc initDb*(connString: string): TodoDB =
+##      result = fiber_orm.initPool(
+##        connect = proc(): DbConn = open("", "", "", connString),
+##        poolSize = 20,
+##        hardCap = false)
+##
+##
+##    generateProcsForModels(TodoDB, [TodoItem, TimeEntry])
+##
+##    generateLookup(TodoDB, TimeEntry, @["todoItemId"])
+##
+## This will generate the following procedures:
+##
+## .. code-block:: Nim
+##    proc getTodoItem*(db: TodoDB, id: UUID): TodoItem;
+##
+##    proc createTodoItem*(db: TodoDB, rec: TodoItem): TodoItem;
+##    proc updateTodoItem*(db: TodoDB, rec: TodoItem): bool;
+##    proc createOrUpdateTodoItem*(db: TodoDB, rec: TodoItem): bool;
+##    proc deleteTodoItem*(db: TodoDB, rec: TodoItem): bool;
+##    proc deleteTodoItem*(db: TodoDB, id: UUID): bool;
+##
+##    proc getAllTodoItems*(db: TodoDB,
+##      pagination = none[PaginationParams]()): seq[TodoItem];
+##
+##    proc findTodoItemsWhere*(db: TodoDB, whereClause: string,
+##      values: varargs[string, dbFormat], pagination = none[PaginationParams]()
+##      ): seq[TodoItem];
+##
+##    proc getTimeEntry*(db: TodoDB, id: UUID): TimeEntry;
+##    proc createTimeEntry*(db: TodoDB, rec: TimeEntry): TimeEntry;
+##    proc updateTimeEntry*(db: TodoDB, rec: TimeEntry): bool;
+##    proc deleteTimeEntry*(db: TodoDB, rec: TimeEntry): bool;
+##    proc deleteTimeEntry*(db: TodoDB, id: UUID): bool;
+##
+##    proc getAllTimeEntries*(db: TodoDB,
+##      pagination = none[PaginationParams]()): seq[TimeEntry];
+##
+##    proc findTimeEntriesWhere*(db: TodoDB, whereClause: string,
+##      values: varargs[string, dbFormat], pagination = none[PaginationParams]()
+##      ): seq[TimeEntry];
+##
+##    proc findTimeEntriesByTodoItemId(db: TodoDB, todoItemId: UUID,
+##      pagination = none[PaginationParams]()): seq[TimeEntry];
+##
+## Object-Relational Modeling
+## ==========================
+##
+## Model Class
+## -----------
+##
+## Fiber ORM uses simple Nim `object`s and `ref object`s as model classes.
+## Fiber ORM expects there to be one table for each model class.
+##
+## Name Mapping
+## ````````````
+## Fiber ORM uses `snake_case` for database identifiers (column names, table
+## names, etc.) and `camelCase` for Nim identifiers. We automatically convert
+## model names to and from table names (`TodoItem` <-> `todo_items`), as well
+## as column names (`userId` <-> `user_id`).
+##
+## Notice that table names are automatically pluralized from model class names.
+## In the above example, you have:
+##
+## ===========    ================
+## Model Class    Table Name
+## ===========    ================
+## TodoItem       todo_items
+## TimeEntry      time_entries
+## ===========    ================
+##
+## Because Nim is style-insensitive, you can generall refer to model classes
+## and fields using `snake_case`, `camelCase`, or `PascalCase` in your code and
+## expect Fiber ORM to be able to map the names to DB identifier names properly
+## (though FiberORM will always use `camelCase` internally).
+##
+## See the `identNameToDb`_, `dbNameToIdent`_, `tableName`_ and `dbFormat`_
+## procedures in the `fiber_orm/util`_ module for details.
+##
+## .. _identNameToDb: fiber_orm/util.html#identNameToDb,string
+## .. _dbNameToIdent: fiber_orm/util.html#dbNameToIdent,string
+## .. _tableName: fiber_orm/util.html#tableName,type
+## .. _dbFormat: fiber_orm/util.html#dbFormat,DateTime
+## .. _util: fiber_orm/util.html
+##
+## ID Field
+## ````````
+##
+## Fiber ORM expects every model class to have a field named `id`, with a
+## corresponding `id` column in the model table. This field must be either a
+## `string`, `integer`, or `UUID`_.
+##
+## When creating a new record the `id` field will be omitted if it is empty
+## (`Option.isNone`_, `UUID.isZero`_, value of `0`, or only whitespace).  This
+## is intended to allow for cases like the example where the database may
+## generate an ID when a new record is inserted. If a non-zero value is
+## provided, the create call will include the `id` field in the `INSERT` query.
+##
+## For example, to allow the database to create the id:
+##
+## .. code-block:: Nim
+##    let item = TodoItem(
+##      owner: "John Mann",
+##      summary: "Create a grocery list.",
+##      details: none[string](),
+##      priority: 0,
+##      relatedTodoItemIds: @[])
+##
+##    let itemWithId = db.createTodoItem(item)
+##    echo $itemWithId.id # generated in the database
+##
+## And to create it in code:
+##
+## .. code-block:: Nim
+##    import uuids
+##
+##    let item = TodoItem(
+##      id: genUUID(),
+##      owner: "John Mann",
+##      summary: "Create a grocery list.",
+##      details: none[string](),
+##      priority: 0,
+##      relatedTodoItemIds: @[])
+##
+##    let itemInDb = db.createTodoItem(item)
+##    echo $itemInDb.id # will be the same as what was provided
+##
+## .. _Option.isNone: https://nim-lang.org/docs/options.html#isNone,Option[T]
+## .. _UUID.isZero: https://github.com/pragmagic/uuids/blob/8cb8720b567c6bcb261bd1c0f7491bdb5209ad06/uuids.nim#L72
+##
+## Supported Data Types
+## --------------------
+##
+## The following Nim data types are supported by Fiber ORM:
+##
+## ===============  ======================  =================
+## Nim Type         Postgres Type           SQLite Type
+## ===============  ======================  =================
+## `string`         `varchar`_
+## `int`            `integer`_
+## `float`          `double`_
+## `bool`           `boolean`_
+## `DateTime`_      `timestamp`_
+## `seq[]`          `array`_
+## `UUID`_          `uuid (pg)`_
+## `Option`_        *allows* `NULL` [#f1]_
+## `JsonNode`_      `jsonb`_
+## ===============  ======================  =================
+##
+## .. [#f1] Note that this implies that all `NULL`-able fields should be typed
+##          as optional using `Option[fieldType]`. Conversely, any fields with
+##          non-optional types should also be constrained to be `NOT NULL` in
+##          the database schema.
+##
+## .. _DateTime: https://nim-lang.org/docs/times.html#DateTime
+## .. _UUID: https://github.com/pragmagic/uuids
+## .. _Option: https://nim-lang.org/docs/options.html#Option
+## .. _JsonNode: https://nim-lang.org/docs/json.html#JsonNode
+##
+## .. _varchar: https://www.postgresql.org/docs/current/datatype-character.html
+## .. _integer: https://www.postgresql.org/docs/current/datatype-numeric.html#DATATYPE-INT
+## .. _double: https://www.postgresql.org/docs/current/datatype-numeric.html#DATATYPE-FLOAT
+## .. _boolean: https://www.postgresql.org/docs/current/datatype-boolean.html
+## .. _timestamp: https://www.postgresql.org/docs/current/datatype-datetime.html
+## .. _array: https://www.postgresql.org/docs/current/arrays.html
+## .. _uuid (pg): https://www.postgresql.org/docs/current/datatype-uuid.html
+## .. _jsonb: https://www.postgresql.org/docs/current/datatype-json.html
+##
+## Database Object
+## ===============
+##
+## Many of the Fiber ORM macros expect a database object type to be passed.
+## In the example above the `pool.DbConnPool`_ object is used as database
+## object type (aliased as `TodoDB`). This is the intended usage pattern, but
+## anything can be passed as the database object type so long as there is a
+## defined `withConnection` template that provides a `conn: DbConn` object
+## to the provided statement body.
+##
+## For example, a valid database object implementation that opens a new
+## connection for every request might look like this:
+##
+## .. code-block:: Nim
+##    import db_connector/db_postgres
+##
+##    type TodoDB* = object
+##      connString: string
+##
+##    template withConnection*(db: TodoDB, stmt: untyped): untyped =
+##      block:
+##        let conn = open("", "", "", db.connString)
+##        try: stmt
+##        finally: close(conn)
+##
+## .. _pool.DbConnPool: fiber_orm/pool.html#DbConnPool
+##
+import std/[json, macros, options, sequtils, strutils]
+import db_connector/db_common
+import uuids
 
 from std/unicode import capitalize
 
-import ./fiber_orm/pool
-import ./fiber_orm/util
+import ./fiber_orm/db_common as fiber_db_common
+import ./fiber_orm/[pool, util]
+import ./fiber_orm/private/logging
 
-export
-  pool,
-  util.columnNamesForModel,
-  util.dbFormat,
-  util.dbNameToIdent,
-  util.identNameToDb,
-  util.modelName,
-  util.rowToModel,
-  util.tableName
+export pool, util
+export logging.enableDbLogging
 
-type NotFoundError* = object of CatchableError
+type
+  PagedRecords*[T] = object
+    pagination*: Option[PaginationParams]
+    records*: seq[T]
+    totalRecords*: int
 
-var logNs {.threadvar.}: LoggingNamespace
+  DbUpdateError* = object of CatchableError
+    ## Error types raised when a DB modification fails.
 
-template log(): untyped =
-  if logNs.isNil: logNs = initLoggingNamespace(name = "fiber_orm", level = lvlNotice)
-  logNs
+  NotFoundError* = object of CatchableError
+    ## Error type raised when no record matches a given ID
 
 proc newMutateClauses(): MutateClauses =
   return MutateClauses(
@@ -30,7 +315,15 @@ proc newMutateClauses(): MutateClauses =
     placeholders: @[],
     values: @[])
 
-proc createRecord*[T](db: DbConn, rec: T): T =
+proc createRecord*[D: DbConnType, T](db: D, rec: T): T =
+  ## Create a new record. `rec` is expected to be a `model class`_. The `id`
+  ## field is only set if it is non-empty (see `ID Field`_ for details).
+  ##
+  ## Returns the newly created record.
+  ##
+  ## .. _model class: #objectminusrelational-modeling-model-class
+  ## .. _ID Field: #model-class-id-field
+
   var mc = newMutateClauses()
   populateMutateClauses(rec, true, mc)
 
@@ -40,12 +333,14 @@ proc createRecord*[T](db: DbConn, rec: T): T =
     " VALUES (" & mc.placeholders.join(",") & ") " &
     " RETURNING " & columnNamesForModel(rec).join(",")
 
-  log().debug "createRecord: [" & sqlStmt & "]"
+  logQuery("createRecord", sqlStmt)
+
   let newRow = db.getRow(sql(sqlStmt), mc.values)
 
   result = rowToModel(T, newRow)
 
-proc updateRecord*[T](db: DbConn, rec: T): bool =
+proc updateRecord*[D: DbConnType, T](db: D, rec: T): bool =
+  ## Update a record by id. `rec` is expected to be a `model class`_.
   var mc = newMutateClauses()
   populateMutateClauses(rec, false, mc)
 
@@ -55,28 +350,51 @@ proc updateRecord*[T](db: DbConn, rec: T): bool =
     " SET " & setClause &
     " WHERE id = ? "
 
-  log().debug "updateRecord: [" & sqlStmt & "] id: " & $rec.id
+  logQuery("updateRecord", sqlStmt, [("id", $rec.id)])
   let numRowsUpdated = db.execAffectedRows(sql(sqlStmt), mc.values.concat(@[$rec.id]))
 
   return numRowsUpdated > 0;
 
-template deleteRecord*(db: DbConn, modelType: type, id: typed): untyped =
+proc createOrUpdateRecord*[D: DbConnType, T](db: D, rec: T): T =
+  ## Create or update a record. `rec` is expected to be a `model class`_. If
+  ## the `id` field is unset, or if there is no existing record with the given
+  ## id, a new record is inserted. Otherwise, the existing record is updated.
+  ##
+  ## Note that this does not perform partial updates, all fields are updated.
+
+  let findRecordStmt = "SELECT id FROM " & tableName(rec) & " WHERE id = ?"
+  logQuery("createOrUpdateRecord", findRecordStmt, [("id", $rec.id)])
+  let rows = db.getAllRows(sql(findRecordStmt), [$rec.id])
+
+  if rows.len == 0: result = createRecord(db, rec)
+  else:
+    result = rec
+    if not updateRecord(db, rec):
+      raise newException(DbUpdateError,
+        "unable to update " & modelName(rec) & " for id " & $rec.id)
+
+template deleteRecord*[D: DbConnType](db: D, modelType: type, id: typed): untyped =
+  ## Delete a record by id.
   let sqlStmt = "DELETE FROM " & tableName(modelType) & " WHERE id = ?"
-  log().debug "deleteRecord: [" & sqlStmt & "] id: " & $id
+  logQuery("deleteRecord", sqlStmt, [("id", $id)])
   db.tryExec(sql(sqlStmt), $id)
 
-proc deleteRecord*[T](db: DbConn, rec: T): bool =
+proc deleteRecord*[D: DbConnType, T](db: D, rec: T): bool =
+  ## Delete a record by `id`_.
+  ##
+  ## .. _id: #model-class-id-field
   let sqlStmt = "DELETE FROM " & tableName(rec) & " WHERE id = ?"
-  log().debug "deleteRecord: [" & sqlStmt & "] id: " & $rec.id
+  logQuery("deleteRecord", sqlStmt, [("id", $rec.id)])
   return db.tryExec(sql(sqlStmt), $rec.id)
 
-template getRecord*(db: DbConn, modelType: type, id: typed): untyped =
+template getRecord*[D: DbConnType](db: D, modelType: type, id: typed): untyped =
+  ## Fetch a record by id.
   let sqlStmt =
     "SELECT " & columnNamesForModel(modelType).join(",") &
     " FROM " & tableName(modelType) &
     " WHERE id = ?"
 
-  log().debug "getRecord: [" & sqlStmt & "] id: " & $id
+  logQuery("getRecord", sqlStmt, [("id", $id)])
   let row = db.getRow(sql(sqlStmt), @[$id])
 
   if allIt(row, it.len == 0):
@@ -84,76 +402,285 @@ template getRecord*(db: DbConn, modelType: type, id: typed): untyped =
 
   rowToModel(modelType, row)
 
-template findRecordsWhere*(db: DbConn, modelType: type, whereClause: string, values: varargs[string, dbFormat]): untyped =
+template tryGetRecord*[D: DbConnType](db: D, modelType: type, id: typed): untyped =
+  ## Fetch a record by id.
   let sqlStmt =
+    "SELECT " & columnNamesForModel(modelType).join(",") &
+    " FROM " & tableName(modelType) &
+    " WHERE id = ?"
+
+  logQuery("tryGetRecord", sqlStmt, [("id", $id)])
+  let row = db.getRow(sql(sqlStmt), @[$id])
+
+  if allIt(row, it.len == 0): none[modelType]()
+  else: some(rowToModel(modelType, row))
+
+template findRecordsWhere*[D: DbConnType](
+    db: D,
+    modelType: type,
+    whereClause: string,
+    values: varargs[string, dbFormat],
+    page: Option[PaginationParams]): untyped =
+  ## Find all records matching a given `WHERE` clause. The number of elements in
+  ## the `values` array must match the number of placeholders (`?`) in the
+  ## provided `WHERE` clause.
+  var fetchStmt =
     "SELECT " & columnNamesForModel(modelType).join(",") &
     " FROM " & tableName(modelType) &
     " WHERE " & whereClause
 
-  log().debug "findRecordsWhere: [" & sqlStmt & "] values: (" & values.join(", ") & ")"
-  db.getAllRows(sql(sqlStmt), values).mapIt(rowToModel(modelType, it))
+  var countStmt =
+    "SELECT COUNT(*) FROM " & tableName(modelType) &
+    " WHERE " & whereClause
 
-template getAllRecords*(db: DbConn, modelType: type): untyped =
-  let sqlStmt =
+  if page.isSome: fetchStmt &= getPagingClause(page.get)
+
+  logQuery("findRecordsWhere", fetchStmt, [("values", values.join(", "))])
+  let records = db.getAllRows(sql(fetchStmt), values).mapIt(rowToModel(modelType, it))
+
+  PagedRecords[modelType](
+    pagination: page,
+    records: records,
+    totalRecords:
+      if page.isNone: records.len
+      else: db.getRow(sql(countStmt), values)[0].parseInt)
+
+template getAllRecords*[D: DbConnType](
+    db: D,
+    modelType: type,
+    page: Option[PaginationParams]): untyped =
+  ## Fetch all records of the given type.
+  var fetchStmt =
     "SELECT " & columnNamesForModel(modelType).join(",") &
     " FROM " & tableName(modelType)
 
-  log().debug "getAllRecords: [" & sqlStmt & "]"
-  db.getAllRows(sql(sqlStmt)).mapIt(rowToModel(modelType, it))
+  var countStmt = "SELECT COUNT(*) FROM " & tableName(modelType)
 
-template findRecordsBy*(db: DbConn, modelType: type, lookups: seq[tuple[field: string, value: string]]): untyped =
-  let sqlStmt =
-    "SELECT " & columnNamesForModel(modelType).join(",") &
-    " FROM " & tableName(modelType) &
-    " WHERE " & lookups.mapIt(it.field & " = ?").join(" AND ")
+  if page.isSome: fetchStmt &= getPagingClause(page.get)
+
+  logQuery("getAllRecords", fetchStmt)
+  let records = db.getAllRows(sql(fetchStmt)).mapIt(rowToModel(modelType, it))
+
+  PagedRecords[modelType](
+    pagination: page,
+    records: records,
+    totalRecords:
+      if page.isNone: records.len
+      else: db.getRow(sql(countStmt))[0].parseInt)
+
+
+template findRecordsBy*[D: DbConnType](
+    db: D,
+    modelType: type,
+    lookups: seq[tuple[field: string, value: string]],
+    page: Option[PaginationParams]): untyped =
+  ## Find all records matching the provided lookup values.
+  let whereClause = lookups.mapIt(it.field & " = ?").join(" AND ")
   let values = lookups.mapIt(it.value)
 
-  log().debug "findRecordsBy: [" & sqlStmt & "] values (" & values.join(", ") & ")"
-  db.getAllRows(sql(sqlStmt), values).mapIt(rowToModel(modelType, it))
+  var fetchStmt =
+    "SELECT " & columnNamesForModel(modelType).join(",") &
+    " FROM " & tableName(modelType) &
+    " WHERE " & whereClause
+
+  var countStmt =
+    "SELECT COUNT(*) FROM " & tableName(modelType) &
+    " WHERE " & whereClause
+
+  if page.isSome: fetchStmt &= getPagingClause(page.get)
+
+  logQuery("findRecordsBy", fetchStmt, [("values", values.join(", "))])
+  let records = db.getAllRows(sql(fetchStmt), values).mapIt(rowToModel(modelType, it))
+
+  PagedRecords[modelType](
+    pagination: page,
+    records: records,
+    totalRecords:
+      if page.isNone: records.len
+      else: db.getRow(sql(countStmt), values)[0].parseInt)
+
+
+template associate*[D: DbConnType, I, J](
+    db: D,
+    joinTableName: string,
+    rec1: I,
+    rec2: J): void =
+  ## Associate two records via a join table.
+
+  let insertStmt =
+    "INSERT INTO " & joinTableName &
+    " (" & tableName(I) & "_id, " & tableName(J) & "_id) " &
+    " VALUES (?, ?)"
+
+  logQuery("associate", insertStmt, [("id1", $rec1.id), ("id2", $rec2.id)])
+  db.exec(sql(insertStmt), [$rec1.id, $rec2.id])
+
+
+template findViaJoinTable*[D: DbConnType, L](
+    db: D,
+    joinTableName: string,
+    targetType: type,
+    rec: L,
+    page: Option[PaginationParams]): untyped =
+  ## Find all records of `targetType` that are associated with `rec` via a
+  ## join table.
+  let columns = columnNamesForModel(targetType).mapIt("t." & it).join(",")
+
+  var fetchStmt =
+    "SELECT " & columns &
+    " FROM " & tableName(targetType) & " AS t " &
+    " JOIN " & joinTableName & " AS j " &
+    " ON t.id = jt." & tableName(targetType) & "_id " &
+    " WHERE jt." & tableName(rec) & "_id = ?"
+
+  var countStmt =
+    "SELECT COUNT(*) FROM " & joinTableName &
+    " WHERE " & tableName(rec) & "_id = ?"
+
+  if page.isSome: fetchStmt &= getPagingClause(page.get)
+
+  logQuery("findViaJoinTable", fetchStmt, [("id", $rec.id)])
+  let records = db.getAllRows(sql(fetchStmt), $rec.id)
+    .mapIt(rowToModel(targetType, it))
+
+  PagedRecords[targetType](
+    pagination: page,
+    records: records,
+    totalRecords:
+      if page.isNone: records.len
+      else: db.getRow(sql(countStmt))[0].parseInt)
+
+template findViaJoinTable*[D: DbConnType](
+    db: D,
+    joinTableName: string,
+    targetType: type,
+    lookupType: type,
+    id: typed,
+    page: Option[PaginationParams]): untyped =
+  ## Find all records of `targetType` that are associated with a record of
+  ## `lookupType` via a join table.
+  let columns = columnNamesForModel(targetType).mapIt("t." & it).join(",")
+
+  var fetchStmt =
+    "SELECT " & columns &
+    " FROM " & tableName(targetType) & " AS t " &
+    " JOIN " & joinTableName & " AS j " &
+    " ON t.id = jt." & tableName(targetType) & "_id " &
+    " WHERE jt." & tableName(lookupType) & "_id = ?"
+
+  var countStmt =
+    "SELECT COUNT(*) FROM " & joinTableName &
+    " WHERE " & tableName(lookupType) & "_id = ?"
+
+  if page.isSome: fetchStmt &= getPagingClause(page.get)
+
+  logQuery("findViaJoinTable", fetchStmt, [("id", $id)])
+  let records = db.getAllRows(sql(fetchStmt), $id)
+    .mapIt(rowToModel(targetType, it))
+
+  PagedRecords[targetType](
+    pagination: page,
+    records: records,
+    totalRecords:
+      if page.isNone: records.len
+      else: db.getRow(sql(countStmt))[0].parseInt)
 
 macro generateProcsForModels*(dbType: type, modelTypes: openarray[type]): untyped =
+  ## Generate all standard access procedures for the given model types. For a
+  ## `model class`_ named `TodoItem`, this will generate the following
+  ## procedures:
+  ##
+  ## .. code-block:: Nim
+  ##    proc getTodoItem*(db: TodoDB, id: idType): TodoItem;
+  ##    proc getAllTodoItems*(db: TodoDB): TodoItem;
+  ##    proc createTodoItem*(db: TodoDB, rec: TodoItem): TodoItem;
+  ##    proc deleteTodoItem*(db: TodoDB, rec: TodoItem): bool;
+  ##    proc deleteTodoItem*(db: TodoDB, id: idType): bool;
+  ##    proc updateTodoItem*(db: TodoDB, rec: TodoItem): bool;
+  ##    proc createOrUpdateTodoItem*(db: TodoDB, rec: TodoItem): bool;
+  ##
+  ##    proc findTodoItemsWhere*(
+  ##      db: TodoDB, whereClause: string, values: varargs[string]): TodoItem;
+  ##
+  ## `dbType` is expected to be some type that has a defined `withConnection`
+  ## procedure (see `Database Object`_ for details).
+  ##
+  ## .. _Database Object: #database-object
   result = newStmtList()
 
   for t in modelTypes:
+    if t.getType[1].typeKind == ntyRef:
+      raise newException(ValueError,
+        "fiber_orm model object must be objects, not refs")
+
     let modelName = $(t.getType[1])
     let getName = ident("get" & modelName)
-    let getAllName = ident("getAll" & modelName & "s")
-    let findWhereName = ident("find" & modelName & "sWhere")
+    let tryGetName = ident("tryGet" & modelName)
+    let getIfExistsName = ident("get" & modelName & "IfItExists")
+    let getAllName = ident("getAll" & pluralize(modelName))
+    let findWhereName = ident("find" & pluralize(modelName) & "Where")
     let createName = ident("create" & modelName)
     let updateName = ident("update" & modelName)
+    let createOrUpdateName = ident("createOrUpdate" & modelName)
     let deleteName = ident("delete" & modelName)
     let idType = typeOfColumn(t, "id")
     result.add quote do:
       proc `getName`*(db: `dbType`, id: `idType`): `t` =
-        db.withConn: result = getRecord(conn, `t`, id)
+        db.withConnection conn: result = getRecord(conn, `t`, id)
 
-      proc `getAllName`*(db: `dbType`): seq[`t`] =
-        db.withConn: result = getAllRecords(conn, `t`)
+      proc `tryGetName`*(db: `dbType`, id: `idType`): Option[`t`] =
+        db.withConnection conn: result = tryGetRecord(conn, `t`, id)
 
-      proc `findWhereName`*(db: `dbType`, whereClause: string, values: varargs[string, dbFormat]): seq[`t`] =
-        db.withConn:
-          result = findRecordsWhere(conn, `t`, whereClause, values)
+      proc `getIfExistsName`*(db: `dbType`, id: `idType`): Option[`t`] =
+        db.withConnection conn:
+          try: result = some(getRecord(conn, `t`, id))
+          except NotFoundError: result = none[`t`]()
+
+      proc `getAllName`*(db: `dbType`, pagination = none[PaginationParams]()): PagedRecords[`t`] =
+        db.withConnection conn: result = getAllRecords(conn, `t`, pagination)
+
+      proc `findWhereName`*(
+          db: `dbType`,
+          whereClause: string,
+          values: varargs[string, dbFormat],
+          pagination = none[PaginationParams]()): PagedRecords[`t`] =
+        db.withConnection conn:
+          result = findRecordsWhere(conn, `t`, whereClause, values, pagination)
 
       proc `createName`*(db: `dbType`, rec: `t`): `t` =
-        db.withConn: result = createRecord(conn, rec)
+        db.withConnection conn: result = createRecord(conn, rec)
 
       proc `updateName`*(db: `dbType`, rec: `t`): bool =
-        db.withConn: result = updateRecord(conn, rec)
+        db.withConnection conn: result = updateRecord(conn, rec)
+
+      proc `createOrUpdateName`*(db: `dbType`, rec: `t`): `t` =
+        db.inTransaction: result = createOrUpdateRecord(conn, rec)
 
       proc `deleteName`*(db: `dbType`, rec: `t`): bool =
-        db.withConn: result = deleteRecord(conn, rec)
+        db.withConnection conn: result = deleteRecord(conn, rec)
 
       proc `deleteName`*(db: `dbType`, id: `idType`): bool =
-        db.withConn: result = deleteRecord(conn, `t`, id)
+        db.withConnection conn: result = deleteRecord(conn, `t`, id)
 
 macro generateLookup*(dbType: type, modelType: type, fields: seq[string]): untyped =
+  ## Create a lookup procedure for a given set of field names. For example,
+  ## given the TODO database demostrated above,
+  ##
+  ## .. code-block:: Nim
+  ##    generateLookup(TodoDB, TodoItem, ["owner", "priority"])
+  ##
+  ## will generate the following procedure:
+  ##
+  ## .. code-block:: Nim
+  ##    proc findTodoItemsByOwnerAndPriority*(db: SampleDB,
+  ##      owner: string, priority: int): seq[TodoItem]
   let fieldNames = fields[1].mapIt($it)
   let procName = ident("find" & pluralize($modelType.getType[1]) & "By" & fieldNames.mapIt(it.capitalize).join("And"))
 
   # Create proc skeleton
   result = quote do:
-    proc `procName`*(db: `dbType`): seq[`modelType`] =
-      db.withConn: result = findRecordsBy(conn, `modelType`)
+    proc `procName`*(db: `dbType`): PagedRecords[`modelType`] =
+      db.withConnection conn: result = findRecordsBy(conn, `modelType`)
 
   var callParams = quote do: @[]
 
@@ -170,12 +697,18 @@ macro generateLookup*(dbType: type, modelType: type, fields: seq[string]): untyp
     # Build up the AST for the inner procedure call
     callParams[1].add(paramTuple)
 
+  # Add the optional pagination parameters to the generated proc definition
+  result[3].add(newIdentDefs(
+    ident("pagination"), newEmptyNode(),
+    quote do: none[PaginationParams]()))
+
   # Add the call params to the inner procedure call
   # result[6][0][1][0][1] is
-  #   ProcDef -> [6]: StmtList (body) -> [0]: Call ->
-  #     [1]: StmtList (withConn body) -> [0]: Asgn (result =) ->
+  #   ProcDef -> [6]: StmtList (body) -> [0]: Command ->
+  #     [2]: StmtList (withConnection body) -> [0]: Asgn (result =) ->
   #     [1]: Call (inner findRecords invocation)
-  result[6][0][1][0][1].add(callParams)
+  result[6][0][2][0][1].add(callParams)
+  result[6][0][2][0][1].add(quote do: pagination)
 
 macro generateProcsForFieldLookups*(dbType: type, modelsAndFields: openarray[tuple[t: type, fields: seq[string]]]): untyped =
   result = newStmtList()
@@ -188,8 +721,8 @@ macro generateProcsForFieldLookups*(dbType: type, modelsAndFields: openarray[tup
 
     # Create proc skeleton
     let procDefAST = quote do:
-      proc `procName`*(db: `dbType`): seq[`modelType`] =
-        db.withConn: result = findRecordsBy(conn, `modelType`)
+      proc `procName`*(db: `dbType`): PagedRecords[`modelType`] =
+        db.withConnection conn: result = findRecordsBy(conn, `modelType`)
 
     var callParams = quote do: @[]
 
@@ -202,24 +735,115 @@ macro generateProcsForFieldLookups*(dbType: type, modelsAndFields: openarray[tup
       procDefAST[3].add(newIdentDefs(ident(n), ident("string")))
       callParams[1].add(paramTuple)
 
+    # Add the optional pagination parameters to the generated proc definition
+    procDefAST[3].add(newIdentDefs(
+      ident("pagination"), newEmptyNode(),
+      quote do: none[PaginationParams]()))
+
     procDefAST[6][0][1][0][1].add(callParams)
+    procDefAST[6][0][1][0][1].add(quote do: pagination)
 
     result.add procDefAST
 
-proc initPool*(
-    connect: proc(): DbConn,
-    poolSize = 10,
-    hardCap = false,
-    healthCheckQuery = "SELECT 'true' AS alive"): DbConnPool =
+macro generateJoinTableProcs*(
+    dbType, model1Type, model2Type: type,
+    joinTableName: string): untyped =
+  ## Generate lookup procedures for a pair of models with a join table. For
+  ## example, given the TODO database demonstrated above, where `TodoItem` and
+  ## `TimeEntry` have a many-to-many relationship, you might have a join table
+  ## `todo_items_time_entries` with columns `todo_item_id` and `time_entry_id`.
+  ## This macro will generate the following procedures:
+  ##
+  ## .. code-block:: Nim
+  ##    proc findTodoItemsByTimeEntry*(db: SampleDB, timeEntry: TimeEntry): seq[TodoItem]
+  ##    proc findTimeEntriesByTodoItem*(db: SampleDB, todoItem: TodoItem): seq[TimeEntry]
+  ##
+  ## `dbType` is expected to be some type that has a defined `withConnection`
+  ## procedure (see `Database Object`_ for details).
+  ##
+  ## .. _Database Object: #database-object
+  result = newStmtList()
 
-  initDbConnPool(DbConnPoolConfig(
-    connect: connect,
-    poolSize: poolSize,
-    hardCap: hardCap,
-    healthCheckQuery: healthCheckQuery))
+  if model1Type.getType[1].typeKind == ntyRef or
+     model2Type.getType[1].typeKind == ntyRef:
+    raise newException(ValueError,
+      "fiber_orm model object must be objects, not refs")
 
-template inTransaction*(db: DbConnPool, body: untyped) =
-  pool.withConn(db):
+  let model1Name = $(model1Type.getType[1])
+  let model2Name = $(model2Type.getType[1])
+  let getModel1Name = ident("get" & pluralize(model1Name) & "By" & model2Name)
+  let getModel2Name = ident("get" & pluralize(model2Name) & "By" & model1Name)
+  let id1Type = typeOfColumn(model1Type, "id")
+  let id2Type = typeOfColumn(model2Type, "id")
+  let joinTableNameNode = newStrLitNode($joinTableName)
+
+  result.add quote do:
+    proc `getModel1Name`*(
+        db: `dbType`,
+        id: `id2Type`,
+        pagination = none[PaginationParams]()): PagedRecords[`model1Type`] =
+      db.withConnection conn:
+        result = findViaJoinTable(
+          conn,
+          `joinTableNameNode`,
+          `model1Type`,
+          `model2Type`,
+          id,
+          pagination)
+
+    proc `getModel1Name`*(
+        db: `dbType`,
+        rec: `model2Type`,
+        pagination = none[PaginationParams]()): PagedRecords[`model1Type`] =
+      db.withConnection conn:
+        result = findViaJoinTable(
+          conn,
+          `joinTableNameNode`,
+          `model1Type`,
+          rec,
+          pagination)
+
+    proc `getModel2Name`*(
+        db: `dbType`,
+        id: `id1Type`,
+        pagination = none[PaginationParams]()): Pagedrecords[`model2Type`] =
+      db.withConnection conn:
+        result = findViaJoinTable(
+          conn,
+          `joinTableNameNode`,
+          `model2Type`,
+          `model1Type`,
+          id,
+          pagination)
+
+    proc `getModel2Name`*(
+        db: `dbType`,
+        rec: `model1Type`,
+        pagination = none[PaginationParams]()): Pagedrecords[`model2Type`] =
+      db.withConnection conn:
+        result = findViaJoinTable(
+          conn,
+          `joinTableNameNode`,
+          `model2Type`,
+          rec,
+          pagination)
+
+    proc associate*(
+        db: `dbType`,
+        rec1: `model1Type`,
+        rec2: `model2Type`): void =
+      db.withConnection conn:
+        associate(conn, `joinTableNameNode`, rec1, rec2)
+
+    proc associate*(
+        db: `dbType`,
+        rec2: `model2Type`,
+        rec1: `model1Type`): void =
+      db.withConnection conn:
+        associate(conn, `joinTableNameNode`, rec1, rec2)
+
+template inTransaction*(db, body: untyped) =
+  db.withConnection conn:
     conn.exec(sql"BEGIN TRANSACTION")
     try:
       body

src/fiber_orm/db_common.nim

@@ -0,0 +1,3 @@
+import db_connector/[db_postgres, db_sqlite]
+
+type DbConnType* = db_postgres.DbConn or db_sqlite.DbConn

src/fiber_orm/pool.nim

@@ -1,99 +1,114 @@
-import std/db_postgres, std/sequtils, std/strutils, std/sugar
+# Fiber ORM
+#
+# Copyright 2019 Jonathan Bernard <jonathan@jdbernard.com>
 
-import namespaced_logging
+## Simple database connection pooling implementation compatible with Fiber ORM.
 
+when (NimMajor, NimMinor, NimPatch) < (2, 0, 0):
+  when not defined(gcArc) and not defined (gcOrc):
+    {.error: "fiber_orm requires either --mm:arc or --mm:orc.".}
+
+import std/[deques, locks, sequtils, sugar]
+import db_connector/db_common
+
+from db_connector/db_sqlite import getRow, close
+from db_connector/db_postgres import getRow, close
+
+import ./db_common as fiber_db_common
+import ./private/logging
 
 type
-  DbConnPoolConfig* = object
-    connect*: () -> DbConn
-    poolSize*: int
-    hardCap*: bool
-    healthCheckQuery*: string
+  DbConnPool*[D: DbConnType] = ptr DbConnPoolObj[D]
 
-  PooledDbConn = ref object
-    conn: DbConn
-    id: int
-    free: bool
+  DbConnPoolObj[D: DbConnType] = object
+    ## Database connection pool
+    connect: proc (): D {.raises: [DbError].}
+    healthCheckQuery: SqlQuery
+    entries: Deque[D]
+    cond: Cond
+    lock: Lock
 
-  DbConnPool* = ref object
-    conns: seq[PooledDbConn]
-    cfg: DbConnPoolConfig
-    lastId: int
 
-var logNs {.threadvar.}: LoggingNamespace
+proc close*[D: DbConnType](pool: DbConnPool[D]) =
+  ## Safely close all connections and release resources for the given pool.
+  getLogger("pool").debug("closing connection pool")
+  withLock(pool.lock):
+    while pool.entries.len > 0: close(pool.entries.popFirst())
 
-template log(): untyped =
-  if logNs.isNil: logNs = initLoggingNamespace(name = "fiber_orm/pool", level = lvlNotice)
-  logNs
+  deinitLock(pool.lock)
+  deinitCond(pool.cond)
+  `=destroy`(pool[])
+  deallocShared(pool)
 
-proc initDbConnPool*(cfg: DbConnPoolConfig): DbConnPool =
-  log().debug("Initializing new pool (size: " & $cfg.poolSize)
-  result = DbConnPool(
-    conns: @[],
-    cfg: cfg)
 
-proc newConn(pool: DbConnPool): PooledDbConn =
-  log().debug("Creating a new connection to add to the pool.")
-  pool.lastId += 1
-  let conn = pool.cfg.connect()
-  result = PooledDbConn(
-    conn: conn,
-    id: pool.lastId,
-    free: true)
-  pool.conns.add(result)
+proc newDbConnPool*[D: DbConnType](
+    poolSize: int,
+    connectFunc: proc(): D {.raises: [DbError].},
+    healthCheckQuery = "SELECT 1;"): DbConnPool[D] =
+  ## Initialize a new DbConnPool. See the `initDb` procedure in the `Example
+  ## Fiber ORM Usage`_ for an example
+  ##
+  ## * `connect` must be a factory which creates a new `DbConn`.
+  ## * `poolSize` sets the desired capacity of the connection pool.
+  ## * `healthCheckQuery` should be a simple and fast SQL query that the pool
+  ##   can use to test the liveliness of pooled connections. By default it uses
+  ##   `SELECT 1;`
+  ##
+  ## .. _Example Fiber ORM Usage: ../fiber_orm.html#basic-usage-example-fiber-orm-usage
 
-proc maintain(pool: DbConnPool): void =
-  log().debug("Maintaining pool. $# connections." % [$pool.conns.len])
-  pool.conns.keepIf(proc (pc: PooledDbConn): bool =
-    if not pc.free: return true
+  result = cast[DbConnPool[D]](allocShared0(sizeof(DbConnPoolObj[D])))
+  initCond(result.cond)
+  initLock(result.lock)
+  result.entries = initDeque[D](poolSize)
+  result.connect = connectFunc
+  result.healthCheckQuery = sql(healthCheckQuery)
 
-    try:
-      discard getRow(pc.conn, sql(pool.cfg.healthCheckQuery), [])
-      return true
-    except:
-      try: pc.conn.close()  # try to close the connection
-      except: discard ""
-      return false
-  )
-  log().debug(
-    "Pruned dead connections. $# connections remaining." %
-    [$pool.conns.len])
+  try:
+    for _ in 0 ..< poolSize: result.entries.addLast(connectFunc())
+  except DbError as ex:
+    try: result.close()
+    except: discard
+    getLogger("pool").error(
+      msg = "unable to initialize connection pool",
+      err = ex)
+    raise ex
 
-  let freeConns = pool.conns.filterIt(it.free)
-  if pool.conns.len > pool.cfg.poolSize and freeConns.len > 0:
-    let numToCull = min(freeConns.len, pool.conns.len - pool.cfg.poolSize)
 
-    if numToCull > 0:
-      let toCull = freeConns[0..numToCull]
-      pool.conns.keepIf((pc) => toCull.allIt(it.id != pc.id))
-      for culled in toCull:
-        try: culled.conn.close()
-        except: discard ""
-      log().debug(
-        "Trimming pool size. Culled $# free connections. $# connections remaining." %
-        [$toCull.len, $pool.conns.len])
+proc take*[D: DbConnType](pool: DbConnPool[D]): D {.raises: [DbError], gcsafe.} =
+  ## Request a connection from the pool. Returns a DbConn if the pool has free
+  ## connections, or if it has the capacity to create a new connection. If the
+  ## pool is configured with a hard capacity limit and is out of free
+  ## connections, this will raise an Error.
+  ##
+  ## Connections taken must be returned via `release` when the caller is
+  ## finished using them in order for them to be released back to the pool.
+  withLock(pool.lock):
+    while pool.entries.len == 0: wait(pool.cond, pool.lock)
+    result = pool.entries.popFirst()
 
-proc take*(pool: DbConnPool): tuple[id: int, conn: DbConn] =
-  pool.maintain
-  let freeConns = pool.conns.filterIt(it.free)
+    # check that the connection is healthy
+    try: discard getRow(result, pool.healthCheckQuery, [])
+    except DbError:
+      {.gcsafe.}:
+        # if it's not, let's try to close it and create a new connection
+        try:
+          getLogger("pool").info(
+            "pooled connection failed health check, opening a new connection")
+          close(result)
+        except: discard
+        result = pool.connect()
 
-  log().debug(
-    "Providing a new connection ($# currently free)." % [$freeConns.len])
 
-  let reserved =
-    if freeConns.len > 0: freeConns[0]
-    else: pool.newConn()
+proc release*[D: DbConnType](pool: DbConnPool[D], conn: D) {.raises: [], gcsafe.} =
+  ## Release a connection back to the pool.
+  withLock(pool.lock):
+    pool.entries.addLast(conn)
+  signal(pool.cond)
 
-  reserved.free = false
-  log().debug("Reserve connection $#" % [$reserved.id])
-  return (id: reserved.id, conn: reserved.conn)
-
-proc release*(pool: DbConnPool, connId: int): void =
-  log().debug("Reclaiming released connaction $#" % [$connId])
-  let foundConn = pool.conns.filterIt(it.id == connId)
-  if foundConn.len > 0: foundConn[0].free = true
-
-template withConn*(pool: DbConnPool, stmt: untyped): untyped =
-  let (connId, conn {.inject.}) = take(pool)
-  try: stmt
-  finally: release(pool, connId)
+template withConnection*[D: DbConnType](pool: DbConnPool[D], conn, stmt: untyped): untyped =
+  ## Convenience template to provide a connection from the pool for use in a
+  ## statement block, automatically releasing that connnection when done.
+  block:
+    let conn = take(pool)
+    try: stmt
+    finally: release(pool, conn)

src/fiber_orm/private/logging.nim

@@ -0,0 +1,34 @@
+import std/[json, options]
+
+import namespaced_logging
+
+export namespaced_logging.log
+export namespaced_logging.debug
+export namespaced_logging.info
+export namespaced_logging.notice
+export namespaced_logging.warn
+export namespaced_logging.error
+export namespaced_logging.fatal
+
+var logService {.threadvar.}: Option[ThreadLocalLogService]
+var logger {.threadvar.}: Option[Logger]
+
+proc makeQueryLogEntry(
+    m: string,
+    sql: string,
+    args: openArray[(string, string)] = []): JsonNode =
+  result = %*{ "method": m, "sql": sql }
+  for (k, v) in args: result[k] = %v
+
+proc logQuery*(methodName: string, sqlStmt: string, args: openArray[(string, string)] = []) =
+  # namespaced_logging would do this check for us, but we don't want to even
+  # build the log object if we're not actually logging
+  if logService.isNone: return
+  if logger.isNone: logger = logService.getLogger("fiber_orm/query")
+  logger.debug(makeQueryLogEntry(methodName, sqlStmt, args))
+
+proc enableDbLogging*(svc: ThreadLocalLogService) =
+  logService = some(svc)
+
+proc getLogger*(scope: string): Option[Logger] =
+  logService.getLogger("fiber_orm/" & scope)

src/fiber_orm/util.nim

@@ -1,29 +1,70 @@
-import json, macros, options, sequtils, strutils, times, timeutils, unicode,
-  uuids
+# Fiber ORM
+#
+# Copyright 2019 Jonathan Bernard <jonathan@jdbernard.com>
 
-import nre except toSeq
+## Utility methods used internally by Fiber ORM.
+import std/[json, macros, options, sequtils, strutils, times, unicode]
+import uuids
+
+import std/nre except toSeq
 
 type
+  PaginationParams* = object
+    pageSize*: int
+    offset*: int
+    orderBy*: Option[seq[string]]
+
   MutateClauses* = object
+    ## Data structure to hold information about the clauses that should be
+    ## added to a query. How these clauses are used will depend on the query.
+    ## This common data structure provides the information needed to create
+    ## WHERE clauses, UPDATE clauses, etc.
     columns*: seq[string]
     placeholders*: seq[string]
     values*: seq[string]
 
+const ISO_8601_FORMATS = @[
+  "yyyy-MM-dd'T'HH:mm:ssz",
+  "yyyy-MM-dd'T'HH:mm:sszzz",
+  "yyyy-MM-dd'T'HH:mm:ss'.'fffzzz",
+  "yyyy-MM-dd'T'HH:mm:ss'.'ffffzzz",
+  "yyyy-MM-dd HH:mm:ssz",
+  "yyyy-MM-dd HH:mm:sszzz",
+  "yyyy-MM-dd HH:mm:ss'.'fffzzz",
+  "yyyy-MM-dd HH:mm:ss'.'ffffzzz"
+]
+
+proc parseIso8601(val: string): DateTime =
+  var errString = ""
+  for df in ISO_8601_FORMATS:
+    try: return val.parse(df)
+    except: errString &= "\n" & getCurrentExceptionMsg()
+  raise newException(Exception, "Could not parse date. Tried:" & errString)
+
+proc formatIso8601(d: DateTime): string =
+  return d.format(ISO_8601_FORMATS[2])
+
+
 # TODO: more complete implementation
 # see https://github.com/blakeembrey/pluralize
 proc pluralize*(name: string): string =
+  ## Return the plural form of the given name.
   if name[^2..^1] == "ey": return name[0..^3] & "ies"
   if name[^1] == 'y': return name[0..^2] & "ies"
   return name & "s"
 
 macro modelName*(model: object): string =
+  ## For a given concrete record object, return the name of the `model class`_
   return newStrLitNode($model.getTypeInst)
 
 macro modelName*(modelType: type): string =
+  ## Get the name of a given `model class`_
   return newStrLitNode($modelType.getType[1])
 
-
 proc identNameToDb*(name: string): string =
+  ## Map a Nim identifier name to a DB name. See the `rules for name mapping`_
+  ##
+  ## TODO link above
   const UNDERSCORE_RUNE = "_".toRunes[0]
   let nameInRunes = name.toRunes
   var prev: Rune
@@ -42,28 +83,40 @@ proc identNameToDb*(name: string): string =
   return $resultRunes
 
 proc dbNameToIdent*(name: string): string =
+  ## Map a DB name to a Nim identifier name. See the `rules for name mapping`_
   let parts = name.split("_")
   return @[parts[0]].concat(parts[1..^1].mapIt(capitalize(it))).join("")
 
 proc tableName*(modelType: type): string =
+  ## Get the `table name`_ for a given `model class`_
   return pluralize(modelName(modelType).identNameToDb)
 
 proc tableName*[T](rec: T): string =
+  ## Get the `table name`_ for a given record.
   return pluralize(modelName(rec).identNameToDb)
 
-proc dbFormat*(s: string): string = return s
+proc dbFormat*(s: string): string =
+  ## Format a string for inclusion in a SQL Query.
+  return s
 
-proc dbFormat*(dt: DateTime): string = return dt.formatIso8601
+proc dbFormat*(dt: DateTime): string =
+  ## Format a DateTime for inclusion in a SQL Query.
+  return dt.formatIso8601
 
 proc dbFormat*[T](list: seq[T]): string =
+  ## Format a `seq` for inclusion in a SQL Query.
   return "{" & list.mapIt(dbFormat(it)).join(",") & "}"
 
-proc dbFormat*[T](item: T): string = return $item
+proc dbFormat*[T](item: T): string =
+  ## For all other types, fall back on a defined `$` function to create a
+  ## string version of the value we can include in an SQL query.
+  return $item
 
 type DbArrayParseState = enum
   expectStart, inQuote, inVal, expectEnd
 
 proc parsePGDatetime*(val: string): DateTime =
+  ## Parse a Postgres datetime value into a Nim DateTime object.
 
   const PG_TIMESTAMP_FORMATS = [
     "yyyy-MM-dd HH:mm:ss",
@@ -80,18 +133,20 @@ proc parsePGDatetime*(val: string): DateTime =
 
   var correctedVal = val;
 
-  # PostgreSQL will truncate any trailing 0's in the millisecond value leading
-  # to values like `2020-01-01 16:42.3+00`. This cannot currently be parsed by
-  # the standard times format as it expects exactly three digits for
-  # millisecond values. So we have to detect this and pad out the millisecond
-  # value to 3 digits.
-  let PG_PARTIAL_FORMAT_REGEX = re"(\d{4}-\d{2}-\d{2}( |'T')\d{2}:\d{2}:\d{2}\.)(\d{1,2})(\S+)?"
+  # The Nim `times#format` function only recognizes 3-digit millisecond values
+  # but PostgreSQL will sometimes send 1-2 digits, truncating any trailing 0's,
+  # or sometimes provide more than three digits of preceision in the millisecond value leading
+  # to values like `2020-01-01 16:42.3+00` or `2025-01-06 00:56:00.9007+00`.
+  # This cannot currently be parsed by the standard times format as it expects
+  # exactly three digits for millisecond values. So we have to detect this and
+  # coerce the millisecond value to exactly 3 digits.
+  let PG_PARTIAL_FORMAT_REGEX = re"(\d{4}-\d{2}-\d{2}( |'T')\d{2}:\d{2}:\d{2}\.)(\d+)(\S+)?"
   let match = val.match(PG_PARTIAL_FORMAT_REGEX)
 
   if match.isSome:
     let c = match.get.captures
-    if c.toSeq.len == 2: correctedVal = c[0] & alignLeft(c[2], 3, '0')
-    else: correctedVal = c[0] & alignLeft(c[2], 3, '0') & c[3]
+    if c.toSeq.len == 2: correctedVal = c[0] & alignLeft(c[2], 3, '0')[0..2]
+    else: correctedVal = c[0] & alignLeft(c[2], 3, '0')[0..2] & c[3]
 
   var errStr = ""
 
@@ -100,9 +155,10 @@ proc parsePGDatetime*(val: string): DateTime =
     try: return correctedVal.parse(df)
     except: errStr &= "\n\t" & getCurrentExceptionMsg()
 
-  raise newException(ValueError, "Cannot parse PG date. Tried:" & errStr)
+  raise newException(ValueError, "Cannot parse PG date '" & correctedVal & "'. Tried:" & errStr)
 
 proc parseDbArray*(val: string): seq[string] =
+  ## Parse a Postgres array column into a Nim seq[string]
   result = newSeq[string]()
 
   var parseState = DbArrayParseState.expectStart
@@ -160,18 +216,14 @@ proc parseDbArray*(val: string): seq[string] =
   if not (parseState == inQuote) and curStr.len > 0:
     result.add(curStr)
 
-proc createParseStmt*(t, value: NimNode): NimNode =
+func createParseStmt*(t, value: NimNode): NimNode =
+  ## Utility method to create the Nim code required to parse a value coming from
+  ## the a database query. This is used by functions like `rowToModel` to parse
+  ## the dataabase columns into the Nim object fields.
 
-  #echo "Creating parse statment for ", t.treeRepr
   if t.typeKind == ntyObject:
 
-    if t.getType == UUID.getType:
-      result = quote do: parseUUID(`value`)
-
-    elif t.getType == DateTime.getType:
-      result = quote do: parsePGDatetime(`value`)
-
-    elif t.getTypeInst == Option.getType:
+    if t.getTypeInst == Option.getType:
       var innerType = t.getTypeImpl[2][0] # start at the first RecList
       # If the value is a non-pointer type, there is another inner RecList
       if innerType.kind == nnkRecList: innerType = innerType[0]
@@ -182,7 +234,33 @@ proc createParseStmt*(t, value: NimNode): NimNode =
         if `value`.len == 0:  none[`innerType`]()
         else:                 some(`parseStmt`)
 
-    else: error "Unknown value object type: " & $t.getTypeInst
+    elif t.getType == UUID.getType:
+      result = quote do: parseUUID(`value`)
+
+    elif t.getType == DateTime.getType:
+      result = quote do: parsePGDatetime(`value`)
+
+    else: error "Cannot parse column with unknown object type: " & $t.getTypeInst
+
+  elif t.typeKind == ntyGenericInst:
+
+    if t.kind == nnkBracketExpr and
+       t.len > 0 and
+       t[0] == Option.getType:
+
+      var innerType = t.getTypeInst[1]
+      let parseStmt = createParseStmt(innerType, value)
+      result = quote do:
+        if `value`.len == 0:  none[`innerType`]()
+        else:                 some(`parseStmt`)
+
+    else: error "Cannot parse column with unknown generic instance type: " & $t.getTypeInst
+
+  elif t.typeKind == ntyDistinct:
+    result = quote do:
+      block:
+        let tmp: `t` = `value`
+        tmp
 
   elif t.typeKind == ntyRef:
 
@@ -190,7 +268,7 @@ proc createParseStmt*(t, value: NimNode): NimNode =
       result = quote do: parseJson(`value`)
 
     else:
-      error "Unknown ref type: " & $t.getTypeInst
+      error "Cannot parse column with unknown ref type: " & $t.getTypeInst
 
   elif t.typeKind == ntySequence:
     let innerType = t[1]
@@ -209,36 +287,85 @@ proc createParseStmt*(t, value: NimNode): NimNode =
     result = quote do: parseFloat(`value`)
 
   elif t.typeKind == ntyBool:
-    result = quote do: "true".startsWith(`value`.toLower)
+    result = quote do: "true".startsWith(`value`.toLower) or `value` == "1"
 
   elif t.typeKind == ntyEnum:
     let innerType = t.getTypeInst
     result = quote do: parseEnum[`innerType`](`value`)
 
   else:
-    error "Unknown value type: " & $t.typeKind
+    error "Cannot parse column with unknown value type: " & $t.typeKind
+
+func fields(t: NimNode): seq[tuple[fieldIdent: NimNode, fieldType: NimNode]] =
+  #[
+  debugEcho "T: " & t.treeRepr
+  debugEcho "T.kind: " & $t.kind
+  debugEcho "T.typeKind: " & $t.typeKind
+  debugEcho "T.GET_TYPE[1]: " & t.getType[1].treeRepr
+  debugEcho "T.GET_TYPE[1].kind: " & $t.getType[1].kind
+  debugEcho "T.GET_TYPE[1].typeKind: " & $t.getType[1].typeKind
+
+  debugEcho "T.GET_TYPE: " & t.getType.treeRepr
+  debugEcho "T.GET_TYPE[1].GET_TYPE: " & t.getType[1].getType.treeRepr
+  ]#
+
+  # Get the object type AST, with base object (if present) and record list.
+  var objDefAst: NimNode
+  if t.typeKind == ntyObject: objDefAst = t.getType
+  elif t.typeKind == ntyTypeDesc:
+    # In this case we have a type AST that is like:
+    # BracketExpr
+    #   Sym "typeDesc"
+    #   Sym "ModelType"
+    objDefAst = t.
+      getType[1].         # get the Sym "ModelType"
+      getType             # get the object definition type
+
+    if objDefAst.kind != nnkObjectTy:
+      error ("unable to enumerate the fields for model type '$#', " &
+        "tried to resolve the type of the provided symbol to an object " &
+        "definition (nnkObjectTy) but got a '$#'.\pAST:\p$#") % [
+          $t, $objDefAst.kind, objDefAst.treeRepr ]
+  else:
+    error ("unable to enumerate the fields for model type '$#', " &
+      "expected a symbol with type ntyTypeDesc but got a '$#'.\pAST:\p$#") % [
+        $t, $t.typeKind, t.treeRepr ]
+
+  # At this point objDefAst should look something like:
+  # ObjectTy
+  #   Empty
+  #   Sym "BaseObject"" | Empty
+  #   RecList
+  #     Sym "field1"
+  #     Sym "field2"
+  #     ...
+
+  if objDefAst[1].kind == nnkSym:
+    # We have a base class symbol, let's recurse and try and resolve the fields
+    # for the base class
+    for fieldDef in objDefAst[1].fields: result.add(fieldDef)
+
+  for fieldDef in objDefAst[2].children:
+    # objDefAst[2] is a RecList of
+    # ignore AST nodes that are not field definitions
+    if fieldDef.kind == nnkIdentDefs: result.add((fieldDef[0], fieldDef[1]))
+    elif fieldDef.kind == nnkSym: result.add((fieldDef, fieldDef.getTypeInst))
+    else: error "unknown object field definition AST: $#" % $fieldDef.kind
 
 template walkFieldDefs*(t: NimNode, body: untyped) =
-  let tTypeImpl = t.getTypeImpl
+  ## Iterate over every field of the given Nim object, yielding and defining
+  ## `fieldIdent` and `fieldType`, the name of the field as a Nim Ident node
+  ## and the type of the field as a Nim Type node respectively.
+  for (fieldIdent {.inject.}, fieldType {.inject.}) in t.fields: body
 
-  var nodeToItr: NimNode
-  if tTypeImpl.typeKind == ntyObject: nodeToItr = tTypeImpl[2]
-  elif tTypeImpl.typeKind == ntyTypeDesc: nodeToItr = tTypeImpl.getType[1].getType[2]
-  else: error $t & " is not an object or type desc (it's a " & $tTypeImpl.typeKind & ")."
-
-  for fieldDef {.inject.} in nodeToItr.children:
-    # ignore AST nodes that are not field definitions
-    if fieldDef.kind == nnkIdentDefs:
-      let fieldIdent {.inject.} = fieldDef[0]
-      let fieldType {.inject.} = fieldDef[1]
-      body
-
-    elif fieldDef.kind == nnkSym:
-      let fieldIdent {.inject.} = fieldDef
-      let fieldType {.inject.} = fieldDef.getType
-      body
+#[ TODO: replace walkFieldDefs with things like this:
+func columnNamesForModel*(modelType: typedesc): seq[string] =
+  modelType.fields.mapIt(identNameToDb($it[0]))
+]#
 
 macro columnNamesForModel*(modelType: typed): seq[string] =
+  ## Return the column names corresponding to the the fields of the given
+  ## `model class`_
   var columnNames = newSeq[string]()
 
   modelType.walkFieldDefs:
@@ -247,6 +374,8 @@ macro columnNamesForModel*(modelType: typed): seq[string] =
   result = newLit(columnNames)
 
 macro rowToModel*(modelType: typed, row: seq[string]): untyped =
+  ## Return a new Nim model object of type `modelType` populated with the
+  ## values returned in the given database `row`
 
   # Create the object constructor AST node
   result = newNimNode(nnkObjConstr).add(modelType)
@@ -260,6 +389,7 @@ macro rowToModel*(modelType: typed, row: seq[string]): untyped =
       createParseStmt(fieldType, itemLookup)))
     idx += 1
 
+#[
 macro listFields*(t: typed): untyped =
   var fields: seq[tuple[n: string, t: string]] = @[]
   t.walkFieldDefs:
@@ -267,8 +397,10 @@ macro listFields*(t: typed): untyped =
     else: fields.add((n: $fieldIdent, t: $fieldType))
 
   result = newLit(fields)
+]#
 
 proc typeOfColumn*(modelType: NimNode, colName: string): NimNode =
+  ## Given a model type and a column name, return the Nim type for that column.
   modelType.walkFieldDefs:
     if $fieldIdent != colName: continue
 
@@ -287,8 +419,11 @@ proc typeOfColumn*(modelType: NimNode, colName: string): NimNode =
 proc isEmpty(val: int): bool = return val == 0
 proc isEmpty(val: UUID): bool = return val.isZero
 proc isEmpty(val: string): bool = return val.isEmptyOrWhitespace
+proc isEmpty[T](val: Option[T]): bool = return val.isNone
 
 macro populateMutateClauses*(t: typed, newRecord: bool, mc: var MutateClauses): untyped =
+  ## Given a record type, create the datastructure used to generate SQL clauses
+  ## for the fields of this record type.
 
   result = newStmtList()
 
@@ -309,8 +444,8 @@ macro populateMutateClauses*(t: typed, newRecord: bool, mc: var MutateClauses):
 
       # if we're looking at an optional field, add logic to check for presence
       elif fieldType.kind == nnkBracketExpr and
-         fieldType.len > 0 and
-         fieldType[0] == Option.getType:
+           fieldType.len > 0 and
+           fieldType[0] == Option.getType:
 
         result.add quote do:
           `mc`.columns.add(identNameToDb(`fieldName`))
@@ -326,3 +461,20 @@ macro populateMutateClauses*(t: typed, newRecord: bool, mc: var MutateClauses):
           `mc`.columns.add(identNameToDb(`fieldName`))
           `mc`.placeholders.add("?")
           `mc`.values.add(dbFormat(`t`.`fieldIdent`))
+
+
+proc getPagingClause*(page: PaginationParams): string =
+  ## Given a `PaginationParams` object, return the SQL clause necessary to
+  ## limit the number of records returned by a query.
+  result = ""
+  if page.orderBy.isSome:
+    let orderByClause = page.orderBy.get.map(identNameToDb).join(",")
+    result &= " ORDER BY " & orderByClause
+  else:
+    result &= " ORDER BY id"
+
+  result &= " LIMIT " & $page.pageSize & " OFFSET " & $page.offset
+
+## .. _model class: ../fiber_orm.html#objectminusrelational-modeling-model-class
+## .. _rules for name mapping: ../fiber_orm.html
+## .. _table name: ../fiber_orm.html