Add Missing namespace and review filepath

Author: gary houbre

controller/argument_value_resolver.rst

@@ -65,6 +65,7 @@ In the next example, you'll create a value resolver to inject the object that
 represents the current user whenever a controller method type-hints an argument
 with the ``User`` class::
 
+    // src/Controller/UserController.php
     namespace App\Controller;
 
     use App\Entity\User;

controller/service.rst

@@ -26,6 +26,8 @@ a service like: ``App\Controller\HelloController::index``:
     .. code-block:: php-annotations
 
         // src/Controller/HelloController.php
+        namespace App\Controller;
+
         use Symfony\Component\Routing\Annotation\Route;
 
         class HelloController
@@ -87,6 +89,8 @@ which is a common practice when following the `ADR pattern`_
     .. code-block:: php-annotations
 
         // src/Controller/Hello.php
+        namespace App\Controller;
+
         use Symfony\Component\HttpFoundation\Response;
         use Symfony\Component\Routing\Annotation\Route;
 

controller/soap_web_service.rst

@@ -57,6 +57,7 @@ Finally, below is an example of a controller that is capable of handling a SOAP
 request. Because ``index()`` is accessible via ``/soap``, the WSDL document
 can be retrieved via ``/soap?wsdl``::
 
+    // src/Controller/HelloServiceController.php
     namespace App\Controller;
 
     use App\Service\HelloService;

controller/upload_file.rst

@@ -332,6 +332,8 @@ Then, define a service for this class:
 Now you're ready to use this service in the controller::
 
     // src/Controller/ProductController.php
+    namespace App\Controller;
+
     use App\Service\FileUploader;
     use Symfony\Component\HttpFoundation\Request;
 

doctrine/dbal.rst

@@ -44,6 +44,9 @@ if you *don't* want to use the Doctrine ORM.
 You can then access the Doctrine DBAL connection by autowiring the ``Connection``
 object::
 
+    // src/Controller/UserController.php
+    namespace App\Controller;
+
     use Doctrine\DBAL\Driver\Connection;
 
     class UserController extends AbstractController