src/EventListener/SimpleMessageExceptionSubscriber.php line 41

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  1. <?php
  4. namespace App\EventListener;
  7. use App\Exception\SimpleMessageException;
  8. use Psr\Container\ContainerInterface;
  9. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  10. use Symfony\Component\HttpFoundation\JsonResponse;
  11. use Symfony\Component\HttpFoundation\RedirectResponse;
  12. use Symfony\Component\HttpFoundation\Response;
  13. use Symfony\Component\HttpKernel\Event\ExceptionEvent;
  14. use Symfony\Component\HttpKernel\KernelEvents;
  15. use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
  16. use Symfony\Component\Routing\RouterInterface;
  18. class SimpleMessageExceptionSubscriber implements EventSubscriberInterface
  19. {
  20.     /**
  21.      * @var ContainerInterface
  22.      */
  23.     private $container;
  24.     /**
  25.      * @var UrlGeneratorInterface
  26.      */
  27.     private $urlGenerator;
  28.     
  29.     public function __construct(ContainerInterface $container)
  30.     {
  31.         $this->container = $container;
  32.     }
  33.     
  34.     public static function getSubscribedEvents()
  35.     {
  36.         return array(
  37.             KernelEvents::EXCEPTION => 'onKernelException'
  38.         );
  39.     }
  40.     
  41.     public function onKernelException(ExceptionEvent $event)
  42.     {
  43.         $url = $event->getRequest()->headers->get('referer');
  44.         $e = $event->getThrowable();
  45.         if (!$e instanceof SimpleMessageException) {
  46.             return;
  47.         }
  48.         
  49.        $this->container->get('session')->getFlashBag()->add('error', $e->getMessage());
  50.        $event->setResponse(new RedirectResponse($url));
  51.        
  52.        return $event;
  53.     }
  54. }