Question

How can I get the route in a page load even listener?

I have the following code in services.yml:

    page_load_listener:
    class: Acme\MainBundle\EventListener\PageLoadListener
    arguments: [@security.context, @session]
    tags:
        - { name: kernel.event_listener, event: kernel.controller, method: onKernelController, priority: 64 }

In the PageLoadListener class I have the corresponding method:

    public function onKernelController(FilterControllerEvent $event)
    {

        // Some code I need to execute that needs the route arguments

    }

The problem seems to be that the route and arguments are not available. What am I missing?

Which event would I need to pass to pick up the route and it’s arguments?

Thanks,

JB

Answer 1

All kernel events extend KernelEvent, which means you can simply acess the Request object via $event->getRequest().

public function onKernelController(FilterControllerEvent $event)
{
    $request = $event->getRequest();

    // Matched route
    $_route  = $request->attributes->get('_route');

    // Matched controller
    $_controller = $request->attributes->get('_controller');

    // All route parameters including the `_controller`
    $params      = $request->attributes->get('_route_params');
}

If you’d like to get plain route attributes, simply filter out all the elements prefixed with “_”.

Choosing the proper event to listen to depends on your specific use case.