Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\Core\EventSubscriber;
Chris@0: 
Chris@0: use Drupal\Core\ParamConverter\ParamConverterManagerInterface;
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:  * Event subscriber for registering parameter converters with routes.
Chris@0:  */
Chris@0: class ParamConverterSubscriber implements EventSubscriberInterface {
Chris@0: 
Chris@0:   /**
Chris@0:    * The parameter converter manager.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\ParamConverter\ParamConverterManagerInterface
Chris@0:    */
Chris@0:   protected $paramConverterManager;
Chris@0: 
Chris@0:   /**
Chris@0:    * Constructs a new ParamConverterSubscriber.
Chris@0:    *
Chris@0:    * @param \Drupal\Core\ParamConverter\ParamConverterManagerInterface $param_converter_manager
Chris@0:    *   The parameter converter manager that will be responsible for upcasting
Chris@0:    *   request attributes.
Chris@0:    */
Chris@0:   public function __construct(ParamConverterManagerInterface $param_converter_manager) {
Chris@0:     $this->paramConverterManager = $param_converter_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 onRoutingRouteAlterSetParameterConverters(RouteBuildEvent $event) {
Chris@0:     $this->paramConverterManager->setRouteParameterConverters($event->getRouteCollection());
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public static function getSubscribedEvents() {
Chris@0:     // Run after \Drupal\system\EventSubscriber\AdminRouteSubscriber.
Chris@0:     $events[RoutingEvents::ALTER][] = ['onRoutingRouteAlterSetParameterConverters', -220];
Chris@0:     return $events;
Chris@0:   }
Chris@0: 
Chris@0: }