Documentation for custom mapping types

docs/custommappingtypes.rst

@@ -0,0 +1,27 @@
+Custom Mapping Types
+====================
+
+Doctrine allows `Custom Mapping Types <https://www.doctrine-project.org/projects/doctrine-orm/en/2.6/cookbook/custom-mapping-types.html>`_
+To support Custom Mapping Types you must implement ''ZF\Doctrine\GraphQL\Type\CustomTypeInterface''
+on your Custom Doctrine Mapping Type field.  This must return a scalar GraphQL type for the custom type.
+
+Additionally you must create a custom GraphQL type for the field for handling serialization, etc.
+See ''ZF\Doctrine\GraphQL\Type\DateTimeType'' for an example of a custom GraphQL type.
+
+Add the new custom GraphQL type to your configuration::
+
+    'zf-doctrine-graphql-type' => [
+        'invokables' => [
+            'datetime_microsecond' => Types\GraphQL\DateTimeMicrosecondType::class,
+        ],
+    ],
+
+
+.. role:: raw-html(raw)
+   :format: html
+
+.. note::
+  Authored by `API Skeletons <https://apiskeletons.com>`_.  All rights reserved.
+
+
+:raw-html:`<script async src="https://www.googletagmanager.com/gtag/js?id=UA-64198835-4"></script><script>window.dataLayer = window.dataLayer || [];function gtag(){dataLayer.push(arguments);}gtag('js', new Date());gtag('config', 'UA-64198835-4');</script>`

docs/index.rst

@@ -17,6 +17,7 @@ schema, if you wish, allowing deep GraphQL queries on your data with a single en
     hydrators
     queries
     events
+    custommappingtypes
     graphiql
     internals