src/AppBundle/EventListener/CacheListener.php line 39

Open in your IDE?
  1. <?php
  3. namespace AppBundle\EventListener;
  5. use AppBundle\Core\UserPermissionAware;
  6. use eZ\Publish\API\Repository\ContentService;
  7. use eZ\Publish\API\Repository\LocationService;
  8. use eZ\Publish\Core\MVC\Symfony\Event\ContentCacheClearEvent;
  9. use eZ\Publish\Core\MVC\Symfony\MVCEvents;
  10. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  12. class CacheListener implements EventSubscriberInterface
  13. {
  14.     use UserPermissionAware;
  16.     /**
  17.      * @var LocationService
  18.      */
  19.     protected $locationService;
  21.     /**
  22.      * @var ContentService
  23.      */
  24.     protected $contentService;
  26.     public function __construct(
  27.         ContentService $contentService,
  28.         LocationService $locationService
  29.     ) {
  30.         $this->contentService = $contentService;
  31.         $this->locationService = $locationService;
  32.     }
  34.     public static function getSubscribedEvents()
  35.     {
  36.         return [MVCEvents::CACHE_CLEAR_CONTENT => ['onContentCacheClear', 255]];
  37.     }
  39.     public function onContentCacheClear(ContentCacheClearEvent $event)
  40.     {
  41.         $contentInfo = $event->getContentInfo();
  42.         $locations = $this->locationService->loadLocations($contentInfo);
  44.         $reverseRelations = $this->contentService->loadReverseRelations($contentInfo);
  46.         foreach ($reverseRelations as $reverseRelation) {
  47.             foreach ($this->locationService->loadLocations($reverseRelation->getSourceContentInfo()) as $relatedLocation) {
  48.                 $locations[] = $relatedLocation;
  49.             }
  50.         }
  52.         $this->addParentsLocationsToClear($event, $locations);
  53.     }
  55.     private function addParentsLocationsToClear(ContentCacheClearEvent $event, $locations)
  56.     {
  57.         foreach ($locations as $location) {
  58.             $parents = array_slice(array_reverse(explode("/", $location->pathString)), 2, 3);
  59.             foreach ($parents as $parent) {
  60.                 if ($parent > 1) {
  61.                     $parentLocation = $this->locationService->loadLocation($parent);
  62.                     $event->addLocationToClear($parentLocation);
  63.                 }
  64.             }
  65.         }
  66.     }
  67. }