[Drupal 8] Alter route (permissions) for taxonomy vocabulary page

README.md

[Drupal 8] Alter route (permissions) for taxonomy vocabulary page

Needs the patch: https://www.drupal.org/node/1848686

Split "Administer vocabularies and terms" permission: Access the taxonomy overview page and Add terms in vocabulary name

File structure:

mymodule
|- src
|-- Routing
|--- RouteSubscriber.php
|- mymodule.services.yml```

myModule.services.yml

services:
  myModule.route_subscriber:
    class: Drupal\myModule\Routing\RouteSubscriber
    tags:
      - { name: event_subscriber }

RouteSubscriber.php

<?php

namespace Drupal\myModule\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) {
    // As taxonomy are listing should be easily available.
    // In order to do that, override admin/structure to show taxonomy listing.
    $route = $collection->get('system.admin_structure');
    if ($route) {
      $route->setRequirements([
        '_permission' => 'access administration pages+access taxonomy overview',
      ]);
    }
  }
}