src/EventSubscriber/UniqueConstraintViolationExceptionSubscriber.php line 27

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  1. <?php
  3. namespace App\EventSubscriber;
  5. use Doctrine\DBAL\Exception\UniqueConstraintViolationException;
  6. use Psr\Log\LoggerInterface;
  7. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  8. use Symfony\Component\HttpKernel\Event\ExceptionEvent;
  9. use Symfony\Component\HttpKernel\Exception\ConflictHttpException;
  10. use Symfony\Component\HttpKernel\KernelEvents;
  12. class UniqueConstraintViolationExceptionSubscriber implements EventSubscriberInterface
  13. {
  14. public function __construct(
  15. private LoggerInterface $logger,
  16. )
  17. {
  18. }
  20. public static function getSubscribedEvents(): array
  21. {
  22. return [
  23. KernelEvents::EXCEPTION => 'onKernelException',
  24. ];
  25. }
  27. public function onKernelException(ExceptionEvent $event): void
  28. {
  29. $exception = $event->getThrowable();
  31. if (!$exception instanceof UniqueConstraintViolationException) {
  32. return;
  33. }
  35. $this->logger->warning(sprintf(
  36. 'Concurrent write detected (unique constraint violation) on "%s": %s',
  37. $event->getRequest()->getPathInfo(),
  38. $exception->getMessage(),
  39. ));
  41. $event->setThrowable(new ConflictHttpException(
  42. 'This resource was modified concurrently, please try again.',
  43. $exception,
  44. ));
  45. }
  46. }