function RouteSubscriber::alterRoutes

Alters existing routes for a specific collection.

Parameters

\Symfony\Component\Routing\RouteCollection $collection: The route collection for adding routes.

Overrides RouteSubscriberBase::alterRoutes

File

core/modules/media/tests/modules/media_test_embed/src/Routing/RouteSubscriber.php, line 16

Class

RouteSubscriber

Listens to the dynamic route events.

Namespace

Code

public function alterRoutes(RouteCollection $collection) {
  if ($route = $collection->get('media.filter.preview')) {
    $route->setDefault('_controller', '\\Drupal\\media_test_embed\\Controller\\TestMediaFilterController::preview');
  }
}