[symfony#2538][symfony#2433] Adding a note to the service container chapter about how a controller can be defined as a service

weaverryan · weaverryan · commit 1a79eddc6788 · 2013-06-30T12:49:28.000-05:00
diff --git a/book/service_container.rst b/book/service_container.rst
@@ -172,6 +172,15 @@ the behavior you'll need (it's more flexible and powerful), but you'll learn
 later how you can configure a service that has multiple instances in the
 ":doc:`/cookbook/service_container/scopes`" cookbook article.
 
+.. note::
+
+    In this example, the controller extends Symfony's base Controller, which
+    gives you access to the service container itself. You can then use the
+    ``get`` method to locate and retrieve the ``my_mailer`` service from
+    the service container. You can also define your :doc:`controllers as services</cookbook/controller/service>`.
+    This is a bit more advanced and not necessary, but it allows you to inject
+    only the services you need into your controller.
+
 .. _book-service-container-parameters:
 
 Service Parameters
