src/EventSubscriber/User/UserWatchListSubscriber.php line 32

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  1. <?php
  3. namespace App\EventSubscriber\User;
  5. use ApiPlatform\Core\EventListener\EventPriorities;
  6. use App\Entity\User\StudentWatchList;
  7. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  8. use Symfony\Component\HttpFoundation\Request;
  9. use Symfony\Component\HttpKernel\Event\ViewEvent;
  10. use Symfony\Component\HttpKernel\KernelEvents;
  11. use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
  13. final class UserWatchListSubscriber implements EventSubscriberInterface
  14. {
  15.     /**
  16.      * @var TokenStorageInterface
  17.      */
  18.     private $tokenStorage;
  20.     public function __construct(TokenStorageInterface $tokenStorage)
  21.     {
  22.         $this->tokenStorage = $tokenStorage;
  23.     }
  25.     public static function getSubscribedEvents()
  26.     {
  27.         return [
  28.             KernelEvents::VIEW => ['attachOwner', EventPriorities::PRE_WRITE],
  29.         ];
  30.     }
  32.     public function attachOwner(ViewEvent $event)
  33.     {
  34.         $watchlist = $event->getControllerResult();
  35.         $method = $event->getRequest()->getMethod();
  37.         if (!$watchlist instanceof StudentWatchList || Request::METHOD_POST !== $method) {
  38.             // Only handle Article entities (Event is called on any Api entity)
  39.             return;
  40.         }
  42. //        // maybe these extra null checks are not even needed
  43.         $token = $this->tokenStorage->getToken();
  44.         if (!$token) {
  45.             return;
  46.         }
  48.         $owner = $token->getUser();
  49.         if (!$owner instanceof User) {
  50.             return;
  51.         }
  53.         // Attach the user to the not yet persisted Article
  54.         $watchlist->setUser($owner);
  55.         $event->setControllerResult($watchlist);
  56.     }
  57. }