diff core/lib/Drupal/Core/EventSubscriber/ParamConverterSubscriber.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/lib/Drupal/Core/EventSubscriber/ParamConverterSubscriber.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,52 @@
+<?php
+
+namespace Drupal\Core\EventSubscriber;
+
+use Drupal\Core\ParamConverter\ParamConverterManagerInterface;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use Drupal\Core\Routing\RoutingEvents;
+use Drupal\Core\Routing\RouteBuildEvent;
+
+/**
+ * Event subscriber for registering parameter converters with routes.
+ */
+class ParamConverterSubscriber implements EventSubscriberInterface {
+
+  /**
+   * The parameter converter manager.
+   *
+   * @var \Drupal\Core\ParamConverter\ParamConverterManagerInterface
+   */
+  protected $paramConverterManager;
+
+  /**
+   * Constructs a new ParamConverterSubscriber.
+   *
+   * @param \Drupal\Core\ParamConverter\ParamConverterManagerInterface $param_converter_manager
+   *   The parameter converter manager that will be responsible for upcasting
+   *   request attributes.
+   */
+  public function __construct(ParamConverterManagerInterface $param_converter_manager) {
+    $this->paramConverterManager = $param_converter_manager;
+  }
+
+  /**
+   * Applies parameter converters to route parameters.
+   *
+   * @param \Drupal\Core\Routing\RouteBuildEvent $event
+   *   The event to process.
+   */
+  public function onRoutingRouteAlterSetParameterConverters(RouteBuildEvent $event) {
+    $this->paramConverterManager->setRouteParameterConverters($event->getRouteCollection());
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function getSubscribedEvents() {
+    // Run after \Drupal\system\EventSubscriber\AdminRouteSubscriber.
+    $events[RoutingEvents::ALTER][] = ['onRoutingRouteAlterSetParameterConverters', -220];
+    return $events;
+  }
+
+}