Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\Core\EventSubscriber;
Chris@0: 
Chris@0: use Drupal\Core\Entity\EntityResolverManager;
Chris@0: use Symfony\Component\EventDispatcher\EventSubscriberInterface;
Chris@0: use Drupal\Core\Routing\RoutingEvents;
Chris@0: use Drupal\Core\Routing\RouteBuildEvent;
Chris@0: 
Chris@0: /**
Chris@0:  * Registers the 'type' of route parameter names that match an entity type.
Chris@0:  *
Chris@0:  * @todo Matching on parameter *name* is not ideal, because it breaks
Chris@0:  *   encapsulation: parameter names are local to the controller and route, and
Chris@0:  *   controllers and routes can't be expected to know what all possible entity
Chris@0:  *   types might exist across all modules in order to pick names that don't
Chris@0:  *   conflict. Instead, the 'type' should be determined from introspecting what
Chris@0:  *   kind of PHP variable (e.g., a type hinted interface) the controller
Chris@0:  *   requires: https://www.drupal.org/node/2041907.
Chris@0:  */
Chris@0: class EntityRouteAlterSubscriber implements EventSubscriberInterface {
Chris@0: 
Chris@0:   /**
Chris@0:    * The entity resolver manager.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Entity\EntityResolverManager
Chris@0:    */
Chris@0:   protected $resolverManager;
Chris@0: 
Chris@0:   /**
Chris@0:    * Constructs an EntityRouteAlterSubscriber instance.
Chris@0:    *
Chris@0:    * @param \Drupal\Core\Entity\EntityResolverManager $entity_resolver_manager
Chris@0:    *   The entity resolver manager.
Chris@0:    */
Chris@0:   public function __construct(EntityResolverManager $entity_resolver_manager) {
Chris@0:     $this->resolverManager = $entity_resolver_manager;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Applies parameter converters to route parameters.
Chris@0:    *
Chris@0:    * @param \Drupal\Core\Routing\RouteBuildEvent $event
Chris@0:    *   The event to process.
Chris@0:    */
Chris@0:   public function onRoutingRouteAlterSetType(RouteBuildEvent $event) {
Chris@0:     foreach ($event->getRouteCollection() as $route) {
Chris@0:       $this->resolverManager->setRouteOptions($route);
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public static function getSubscribedEvents() {
Chris@0:     $events[RoutingEvents::ALTER][] = ['onRoutingRouteAlterSetType', -150];
Chris@0:     return $events;
Chris@0:   }
Chris@0: 
Chris@0: }