RoutingEvents::ALTER

Name of the event fired during route collection to allow changes to routes.

This event is used to process new routes before they get saved, giving modules the opportunity to alter routes provided by any other module. The event listener method receives a \Drupal\Core\Routing\RouteBuildEvent instance.

See also

\Symfony\Component\Routing\RouteCollection

\Drupal\system\EventSubscriber\AdminRouteSubscriber

\Drupal\Core\Routing\RouteBuilder::rebuild()

Related topics

Events
Overview of event dispatch and subscribing

File

core/lib/Drupal/Core/Routing/RoutingEvents.php, line 44

Class

RoutingEvents
Contains all events thrown in the core routing component.

Namespace

Drupal\Core\Routing

Code

const ALTER = 'routing.route_alter';