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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\Core\EventSubscriber\CacheRouterRebuildSubscriber. | |
| */ | |
| namespace Drupal\Core\EventSubscriber; | |
| use Drupal\Core\Cache\Cache; | |
| use Drupal\Core\Routing\RoutingEvents; | |
| use Symfony\Component\EventDispatcher\EventSubscriberInterface; | |
| /** | |
| * Clear cache tags when the router is rebuilt. | |
| */ | |
| class CacheRouterRebuildSubscriber implements EventSubscriberInterface { | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function onRouterFinished() { | |
| // Requested URLs that formerly gave a 403/404 may now be valid. | |
| // Also invalidate all cached routing. | |
| Cache::invalidateTags(['4xx-response', 'route_match']); | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public static function getSubscribedEvents() { | |
| $events = []; | |
| // Act only when the router rebuild is finished. | |
| $events[RoutingEvents::FINISHED][] = ['onRouterFinished', 200]; | |
| return $events; | |
| } | |
| } |