src/Sylius/Bundle/CoreBundle/EventListener/ChannelDeletionListener.php line 34

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  1. <?php
  3. /*
  4.  * This file is part of the Sylius package.
  5.  *
  6.  * (c) Paweł Jędrzejewski
  7.  *
  8.  * For the full copyright and license information, please view the LICENSE
  9.  * file that was distributed with this source code.
  10.  */
  12. declare(strict_types=1);
  14. namespace Sylius\Bundle\CoreBundle\EventListener;
  16. use Sylius\Bundle\ResourceBundle\Event\ResourceControllerEvent;
  17. use Sylius\Component\Channel\Model\ChannelInterface;
  18. use Sylius\Component\Channel\Repository\ChannelRepositoryInterface;
  19. use Sylius\Component\Resource\Exception\UnexpectedTypeException;
  21. final class ChannelDeletionListener
  22. {
  23.     /** @var ChannelRepositoryInterface */
  24.     private $channelRepository;
  26.     public function __construct(ChannelRepositoryInterface $repository)
  27.     {
  28.         $this->channelRepository = $repository;
  29.     }
  31.     /**
  32.      * Prevent channel deletion if no more channels enabled.
  33.      */
  34.     public function onChannelPreDelete(ResourceControllerEvent $event): void
  35.     {
  36.         $channel = $event->getSubject();
  38.         if (!$channel instanceof ChannelInterface) {
  39.             throw new UnexpectedTypeException(
  40.                 $channel,
  41.                 ChannelInterface::class
  42.             );
  43.         }
  45.         $results = $this->channelRepository->findBy(['enabled' => true]);
  47.         if (!$results || (count($results) === 1 && current($results) === $channel)) {
  48.             $event->stop('sylius.channel.delete_error');
  49.         }
  50.     }
  51. }