I'm working on a D8 project trying to add custom access rules to some pages.

I want to restrict access to specific users based on their id.

I checked this and seems easy but I can't make it work!

I want to change the access for the route

entity.webform_submission.canonical /admin/structure/webform/manage/{webform}/submission/{webform_submission}

But as I didn't manage to make it work I tried an easier example


(Which also doesn't work)

So I created my routing file under my_module/src/Routing folder :

namespace Drupal\my_module\Routing;

use Drupal\Core\Routing\RouteSubscriberBase;
use Symfony\Component\Routing\RouteCollection;

 * Listens to the dynamic route events.
class RouteSubscriber extends RouteSubscriberBase {

   * {@inheritdoc}
  protected function alterRoutes(RouteCollection $collection) {
    if ($route_item = $collection->get('contact.site_page')) {
      $requirements = $route_item->getRequirements();
      $route_item->setRequirement('_access', 'FALSE');

After that I added the service file in my_module's root folder:

    class: Drupal\my_module\Routing\RouteSubscriber
      - { name: event_subscriber }

But I don't get Access denied when I visit those pages.

Also, is there any way to test it by using dsm or var_dump?

Any idea/help/suggestion is valuable!

Thank you in advance.

  • Yes, you can put var_dump($route_item) in alterRoutes(). You see the output when you clear the cache on the command line. – 4k4 Aug 23 '17 at 16:43
  • You're removing _permission from a local copy of the requirements array, not from the route object, could that be the problem? Try $requirements['_access'] = 'FALSE'; after the unset, and then $route_item->setRequirements($requirements); – Clive Aug 23 '17 at 18:51
  • @Clive, this is not the issue, setting _access to FALSE is all what is needed. Problem here seems to be to get the code running (on a cache clear, routes are not built in normal requests) – 4k4 Aug 23 '17 at 19:02
  • @4k4 Thanks, couldn't be bothered to check which had higher priority ;) – Clive Aug 23 '17 at 19:03
  • Thank you both. @4k4 yes that's the problem. I can't make it run. I cleared the caches but still nothing. I checked it in other modules (contributed) and it works but my code doesn't run. I checked the names and are correct, the module is enabled. I even added a var_dump('test') in the beginning of the function but still nothing. Any idea what else may I check? – Ismini Aug 24 '17 at 8:25

you need to enable kint() to get the routs but you need to make sure the permissions for using kint() is correct. and you can add your debugging into alterRouts()

  • Thank you @Ahmad. var_dump works fine. It was a caching issues I think. Also I had to free some space at my container. – Ismini Oct 30 '17 at 9:29

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