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Alter existing routes doesn’t work

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

contact.site_page
/contact

(Which also doesn’t work)

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

namespace Drupalmy_moduleRouting;  use DrupalCoreRoutingRouteSubscriberBase; use SymfonyComponentRoutingRouteCollection;  /**  * 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 = $route_item->getRequirements();       unset($requirements['_permission']);       $route_item->setRequirement('_access', 'FALSE');     }   } }

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

services:   my_module.route_subscriber:     class: Drupalmy_moduleRoutingRouteSubscriber     tags:       - { 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?

This article was republished from its original source.
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Alter existing routes doesn’t work

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