Use simpler example

Author: iagomls

cookbook/controller/error_pages.rst

@@ -229,31 +229,25 @@ example, we gonna override the showAction method::
  
  namespace AppBundle\Controller;
 
+ use Symfony\Bundle\TwigBundle\Controller\ExceptionController as BaseExceptionController;
  use Symfony\Component\HttpFoundation\Request;
  use Symfony\Component\HttpKernel\Exception\FlattenException;
  use Symfony\Component\HttpKernel\Log\DebugLoggerInterface;
- use Symfony\Component\HttpFoundation\Response;
- 
- class ExceptionController extends \Symfony\Bundle\TwigBundle\Controller\ExceptionController
+ use Symfony\Component\HttpFoundation\JsonResponse;
+
+ class ExceptionController extends BaseExceptionController
  {
+ /**
+ * {@inheritdoc}
+ */
  public function showAction(Request $request, FlattenException $exception, DebugLoggerInterface $logger = null)
  {
- $currentContent = $this->getAndCleanOutputBuffering($request->headers->get('X-Php-Ob-Level', -1));
- $showException = $request->attributes->get('showException', $this->debug); // As opposed to an additional parameter, this maintains BC
-
- // $code = $exception->getStatusCode();
- $code = 500; // Route exceptions will throw status code 500
-
- return new Response($this->twig->render(
- (string) $this->findTemplate($request, $request->getRequestFormat(), $code, $showException),
- array(
- 'status_code' => $code,
- 'status_text' => isset(Response::$statusTexts[$code]) ? Response::$statusTexts[$code] : '',
- 'exception' => $exception,
- 'logger' => $logger,
- 'currentContent' => $currentContent,
- )
- ));
+ $code = $exception->getStatusCode();
+
+ return new JsonResponse(array(
+ 'response_type' => 'error',
+ 'message' => 'An exception was thrown.'
+ ), $code);
  }
  }