Document new 'cmf_media_file' form type

Author: eiannone

bundles/media/form_types.rst

@@ -7,6 +7,42 @@ Form Types
 The MediaBundle provides a couple of useful form types along with form data
 transformers.
 
+A default twig template is also included for these form types.
+To use it you will need to add the ``fields.html.twig`` template from the 
+MediaBundle to the ``form.resources`` section in twig config:
+
+.. configuration-block::
+
+    .. code-block:: yaml
+
+        twig:
+            form:
+                resources:
+                    - 'CmfMediaBundle:Form:fields.html.twig'
+
+    .. code-block:: xml
+
+        <?xml version="1.0" encoding="UTF-8" ?>
+        <container xmlns="http://symfony.com/schema/dic/services">
+
+            <config xmlns="http://symfony.com/schem/dic/twig">
+
+                <form>
+                    <resource>CmfMediaBundle:Form:fields.html.twig</resource>
+                </form>
+            </config>
+        </container>
+
+    .. code-block:: php
+
+        $container->loadFromExtension('twig', array(
+            'form' => array(
+                'resources' => array(
+                    'CmfMediaBundle:Form:fields.html.twig',
+                ),
+            ),
+        ));
+
 cmf_media_image
 ~~~~~~~~~~~~~~~
 
@@ -89,42 +125,6 @@ Then you can add images to document forms as follows::
    it optional when editing an existing document. We are
    `trying to make this automatic`_.
 
-Next you will need to add the ``fields.html.twig`` template from the
-MediaBundle to the ``form.resources``, to actually see the preview of the
-uploaded image in the backend:
-
-.. configuration-block::
-
-    .. code-block:: yaml
-
-        twig:
-            form:
-                resources:
-                    - 'CmfMediaBundle:Form:fields.html.twig'
-
-    .. code-block:: xml
-
-        <?xml version="1.0" encoding="UTF-8" ?>
-        <container xmlns="http://symfony.com/schema/dic/services">
-
-            <config xmlns="http://symfony.com/schem/dic/twig">
-
-                <form>
-                    <resource>CmfMediaBundle:Form:fields.html.twig</resource>
-                </form>
-            </config>
-        </container>
-
-    .. code-block:: php
-
-        $container->loadFromExtension('twig', array(
-            'form' => array(
-                'resources' => array(
-                    'CmfMediaBundle:Form:fields.html.twig',
-                ),
-            ),
-        ));
-
 The document that should contain the ``Image`` document has to implement a
 setter method. To profit from the automatic guesser of the form layer, the
 name in the form element and this method name have to match. See
@@ -142,6 +142,17 @@ To delete an image, you need to delete the document containing the image.
     changing images with commands, you should handle cache invalidation in the
     command or manually remove the imagine cache afterwards.
 
+cmf_media_file
+~~~~~~~~~~~~~~~
+
+.. versionadded: 1.3
+    The ``cmf_media_file`` form type was introduced in MediaBundle 1.3.
+    
+The ``cmf_media_file`` form maps to an object that implements the
+``Symfony\Cmf\Bundle\MediaBundle\FileInterface``.
+It renders as a file upload button with a link for downloading the existing
+file, if any.
+
 .. _`LiipImagineBundle`: https://github.com/liip/LiipImagineBundle
 .. _`trying to make this automatic`: https://groups.google.com/forum/?fromgroups=#!topic/symfony2/CrooBoaAlO4
 .. _`ImagineBlock::setImage`: https://github.com/symfony-cmf/BlockBundle/blob/master/Doctrine/Phpcr/ImagineBlock.php#L121