src/EventSubscriber/CommentNotificationSubscriber.php line 50

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  1. <?php
  3. /*
  4. * This file is part of the Symfony package.
  5. *
  6. * (c) Fabien Potencier <fabien@symfony.com>
  7. *
  8. * For the full copyright and license information, please view the LICENSE
  9. * file that was distributed with this source code.
  10. */
  12. namespace App\EventSubscriber;
  14. use App\Entity\Comment;
  15. use App\Events;
  16. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  17. use Symfony\Component\EventDispatcher\GenericEvent;
  18. use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
  19. use Symfony\Contracts\Translation\TranslatorInterface;
  20. use Symfony\Component\Mailer\MailerInterface;
  21. use Symfony\Component\Mime\Email;
  23. /**
  24. * Notifies post's author about new comments.
  25. *
  26. * @author Oleg Voronkovich <oleg-voronkovich@yandex.ru>
  27. */
  28. class CommentNotificationSubscriber implements EventSubscriberInterface
  29. {
  30. private $mailer;
  31. private $translator;
  32. private $urlGenerator;
  33. private $sender;
  35. public function __construct(MailerInterface $mailer, UrlGeneratorInterface $urlGenerator, TranslatorInterface $translator, $sender)
  36. {
  37. $this->mailer = $mailer;
  38. $this->urlGenerator = $urlGenerator;
  39. $this->translator = $translator;
  40. $this->sender = $sender;
  41. }
  43. public static function getSubscribedEvents(): array
  44. {
  45. return [
  46. Events::COMMENT_CREATED => 'onCommentCreated',
  47. ];
  48. }
  50. public function onCommentCreated(GenericEvent $event): void
  51. {
  52. /** @var Comment $comment */
  53. $comment = $event->getSubject();
  54. $post = $comment->getPost();
  56. $linkToPost = $this->urlGenerator->generate('blog_post', [
  57. 'slug' => $post->getSlug(),
  58. '_fragment' => 'comment_'.$comment->getId(),
  59. ], UrlGeneratorInterface::ABSOLUTE_URL);
  61. $subject = $this->translator->trans('notification.comment_created');
  62. $body = $this->translator->trans('notification.comment_created.description', [
  63. '%title%' => $post->getTitle(),
  64. '%link%' => $linkToPost,
  65. ]);
  67. // See https://symfony.com/doc/current/mailer.html
  68. $message = (new Email())
  69. ->subject($subject)
  70. ->to($post->getAuthor()->getEmail())
  71. ->from($this->sender)
  72. ->html($body)
  73. ;
  75. $this->mailer->send($message);
  76. }
  77. }