vendor/contao/news-bundle/src/EventListener/PreviewUrlCreateListener.php line 38

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  1. <?php
  3. declare(strict_types=1);
  5. /*
  6. * This file is part of Contao.
  7. *
  8. * (c) Leo Feyer
  9. *
  10. * @license LGPL-3.0-or-later
  11. */
  13. namespace Contao\NewsBundle\EventListener;
  15. use Contao\CoreBundle\Event\PreviewUrlCreateEvent;
  16. use Contao\CoreBundle\Framework\ContaoFramework;
  17. use Contao\NewsModel;
  18. use Symfony\Component\HttpFoundation\Request;
  19. use Symfony\Component\HttpFoundation\RequestStack;
  21. /**
  22. * @internal
  23. */
  24. class PreviewUrlCreateListener
  25. {
  26. private RequestStack $requestStack;
  27. private ContaoFramework $framework;
  29. public function __construct(RequestStack $requestStack, ContaoFramework $framework)
  30. {
  31. $this->requestStack = $requestStack;
  32. $this->framework = $framework;
  33. }
  35. /**
  36. * Adds the news ID to the front end preview URL.
  37. */
  38. public function __invoke(PreviewUrlCreateEvent $event): void
  39. {
  40. if (!$this->framework->isInitialized() || 'news' !== $event->getKey()) {
  41. return;
  42. }
  44. $request = $this->requestStack->getCurrentRequest();
  46. if (null === $request) {
  47. throw new \RuntimeException('The request stack did not contain a request');
  48. }
  50. // Return on the news archive list page
  51. if ('tl_news' === $request->query->get('table') && !$request->query->has('act')) {
  52. return;
  53. }
  55. if ((!$id = $this->getId($event, $request)) || (!$newsModel = $this->getNewsModel($id))) {
  56. return;
  57. }
  59. $event->setQuery('news='.$newsModel->id);
  60. }
  62. /**
  63. * @return int|string
  64. */
  65. private function getId(PreviewUrlCreateEvent $event, Request $request)
  66. {
  67. // Overwrite the ID if the news settings are edited
  68. if ('tl_news' === $request->query->get('table') && 'edit' === $request->query->get('act')) {
  69. return $request->query->get('id');
  70. }
  72. return $event->getId();
  73. }
  75. /**
  76. * @param int|string $id
  77. */
  78. private function getNewsModel($id): ?NewsModel
  79. {
  80. return $this->framework->getAdapter(NewsModel::class)->findByPk($id);
  81. }
  82. }