[Serializer] Updated the cookbook.

Author: dunglas

components/serializer.rst

@@ -145,6 +145,8 @@ needs three parameters:
 #. The name of the class this information will be decoded to
 #. The encoder used to convert that information into an array
 
+.. _component-serializer-attributes-groups:
+
 Attributes Groups
 -----------------
 

cookbook/serializer.rst

@@ -11,8 +11,6 @@ tools that you can leverage for your solution.
 
 In fact, before you start, get familiar with the serializer, normalizers
 and encoders by reading the :doc:`Serializer Component</components/serializer>`.
-You should also check out the `JMSSerializerBundle`_, which expands on the
-functionality offered by Symfony's core serializer.
 
 Activating the Serializer
 -------------------------
@@ -48,19 +46,44 @@ it in your configuration:
         $container->loadFromExtension('framework', array(
             // ...
             'serializer' => array(
-                'enabled' => true
+                'enabled' => true,
             ),
         ));
 
+Using the Serializer Service
+---------------------------------
+
+Once enabled, the ``serializer`` service can be injected in any service where
+you need it used in a controller like the following::
+
+    namespace AppBundle\Controller;
+
+    use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+
+    class DefaultController extends Controller
+    {
+        public function indexAction()
+        {
+            $serializer = $this->get('serializer');
+
+            // ...
+        }
+    }
+
 Adding Normalizers and Encoders
 -------------------------------
 
+.. versionadded:: 2.7
+    :class:`Symfony\\Component\\Serializer\\Normalizer\\ObjectNormalizer` has
+    been enabled by default in Symfony 2.7. In prior versions you need to load
+    your own normalizer.
+
 Once enabled, the ``serializer`` service will be available in the container
 and will be loaded with two :ref:`encoders<component-serializer-encoders>`
 (:class:`Symfony\\Component\\Serializer\\Encoder\\JsonEncoder` and
 :class:`Symfony\\Component\\Serializer\\Encoder\\XmlEncoder`)
-but no :ref:`normalizers<component-serializer-normalizers>`, meaning you'll
-need to load your own.
+and the :class:`Symfony\\Component\\Serializer\\Normalizer\\ObjectNormalizer`
+:ref:`normalizer<component-serializer-normalizers>`.
 
 You can load normalizers and/or encoders by tagging them as
 :ref:`serializer.normalizer<reference-dic-tags-serializer-normalizer>` and
@@ -101,4 +124,95 @@ Here is an example on how to load the
         $definition->addTag('serializer.normalizer');
         $container->setDefinition('get_set_method_normalizer', $definition);
 
-.. _JMSSerializerBundle: http://jmsyst.com/bundles/JMSSerializerBundle
+Using Serialization Groups Annotations
+--------------------------------------
+
+.. versionadded:: 2.7
+    The serialization group system has been added in Symfony 2.7.
+
+Enable :ref:`serialization groups annotation<component-serializer-attributes-groups>`
+with the following configuration:
+
+.. configuration-block::
+
+    .. code-block:: yaml
+
+        # app/config/config.yml
+        framework:
+            # ...
+            serializer:
+                enable_annotations: true
+
+    .. code-block:: xml
+
+        <!-- app/config/config.xml -->
+        <framework:config>
+            <!-- ... -->
+            <framework:serializer enable-annotations="true" />
+        </framework:config>
+
+    .. code-block:: php
+
+        // app/config/config.php
+        $container->loadFromExtension('framework', array(
+            // ...
+            'serializer' => array(
+                'enable_annotations' => true,
+            ),
+        ));
+
+Enabling the Metadata Cache
+---------------------------
+
+.. versionadded:: 2.7
+    Serializer metadata has been added in Symfony 2.7.
+
+Metadata used by the Serializer component such as groups can be cached to
+enhance application performance. Any service implementing ``Doctrine\Common\Cache\Cache``
+interface can be used.
+
+A service leveraging `APCu`_ (and APC for PHP < 5.5) is builtin.
+
+.. configuration-block::
+
+    .. code-block:: yaml
+
+        # app/config/config_prod.yml
+        framework:
+            # ...
+            serializer:
+                cache: serializer.mapping.cache.apc
+
+    .. code-block:: xml
+
+        <!-- app/config/config_prod.xml -->
+        <framework:config>
+            <!-- ... -->
+            <framework:serializer cache="serializer.mapping.cache.apc" />
+        </framework:config>
+
+    .. code-block:: php
+
+        // app/config/config_prod.php
+        $container->loadFromExtension('framework', array(
+            // ...
+            'serializer' => array(
+                'cache' => 'serializer.mapping.cache.apc',
+            ),
+        ));
+
+Going Further With the Serializer Component
+-------------------------------------------
+
+`DunglasApiBundle`_ provides an API system supporting `JSON-LD`_ and Hydra hypermedia
+formats. It is built on top of the Symfony framework and its Serializer component.
+It provides custom normalizers and a custom encoder, custom metadata and a caching
+system.
+
+If you want to leverage the full power of the Symfony Serializer component,
+take a look at how this bundle works.
+
+.. _`APCu`: https://github.com/krakjoe/apcu
+.. _`DunglasApiBundle`: https://github.com/dunglas/DunglasApiBundle
+.. _`JSON-LD`: http://json-ld.org
+.. _`Hydra`: http://hydra-cg.com