vendor/contao/core-bundle/src/EventListener/PreviewUrlCreateListener.php line 47

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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\CoreBundle\EventListener;
  15. use Contao\ArticleModel;
  16. use Contao\CoreBundle\Event\PreviewUrlCreateEvent;
  17. use Contao\CoreBundle\Framework\ContaoFramework;
  18. use Contao\PageModel;
  19. use Symfony\Component\HttpFoundation\RequestStack;
  21. /**
  22.  * @internal
  23.  */
  24. class PreviewUrlCreateListener
  25. {
  26.     /**
  27.      * @var RequestStack
  28.      */
  29.     private $requestStack;
  31.     /**
  32.      * @var ContaoFramework
  33.      */
  34.     private $framework;
  36.     public function __construct(RequestStack $requestStack, ContaoFramework $framework)
  37.     {
  38.         $this->requestStack = $requestStack;
  39.         $this->framework = $framework;
  40.     }
  42.     /**
  43.      * Adds the page ID to the front end preview URL.
  44.      *
  45.      * @throws \RuntimeException
  46.      */
  47.     public function __invoke(PreviewUrlCreateEvent $event): void
  48.     {
  49.         if (!$this->framework->isInitialized() || (!$id = $event->getId()) || !\in_array($event->getKey(), ['page', 'article'], true)) {
  50.             return;
  51.         }
  53.         $request = $this->requestStack->getCurrentRequest();
  55.         if (null === $request) {
  56.             throw new \RuntimeException('The request stack did not contain a request');
  57.         }
  59.         if ('article' === $event->getKey()) {
  60.             /** @var ArticleModel $adapter */
  61.             $adapter = $this->framework->getAdapter(ArticleModel::class);
  63.             if (!$article = $adapter->findByPk($id)) {
  64.                 return;
  65.             }
  67.             $id = $article->pid;
  68.         }
  70.         /** @var PageModel $adapter */
  71.         $adapter = $this->framework->getAdapter(PageModel::class);
  73.         if (null !== $adapter->findByPk($id)) {
  74.             $event->setQuery('page='.$id);
  75.         }
  76.     }
  77. }