Restrict access to registrations table if registration not enabled

modules/recurring_events_registration/recurring_events_registration.links.task.yml

@@ -25,3 +25,9 @@ entity.registrant.add_form:
   base_route: entity.eventinstance.canonical
   title: 'Register'
   weight: 11
+
+entity.registrant.instance_listing:
+  route_name: entity.registrant.instance_listing
+  base_route: entity.eventinstance.canonical
+  title: 'Registrations'
+  weight: 12

modules/recurring_events_registration/recurring_events_registration.routing.yml

@@ -25,7 +25,8 @@ entity.registrant.canonical:
     _title_callback: '\Drupal\recurring_events_registration\Controller\RegistrantController::getTitle'
   requirements:
     _entity_access: 'registrant.view'
-  parameters:
+  options:
+    parameters:
       eventinstance:
         type: entity:eventinstance
       registrant:
@@ -40,7 +41,8 @@ entity.registrant.add_form:
     _title: 'Add Registration'
   requirements:
     _entity_create_access: 'registrant'
-  parameters:
+  options:
+    parameters:
       eventinstance:
         type: entity:eventinstance
 
@@ -53,7 +55,8 @@ entity.registrant.edit_form:
     _title: 'Edit Registration'
   requirements:
     _entity_access: 'registrant.update'
-  parameters:
+  options:
+    parameters:
       eventinstance:
         type: entity:eventinstance
       registrant:
@@ -68,7 +71,8 @@ entity.registrant.delete_form:
     _title: 'Cancel Registration'
   requirements:
     _entity_access: 'registrant.delete'
-  parameters:
+  options:
+    parameters:
       eventinstance:
         type: entity:eventinstance
       registrant:
@@ -83,7 +87,8 @@ entity.registrant.anon_edit_form:
   requirements:
     _access: 'TRUE'
     uuid: '[0-9a-f]{8}-([0-9a-f]{4}-){3}[0-9a-f]{12}'
-  parameters:
+  options:
+    parameters:
       eventinstance:
         type: entity:eventinstance
       uuid:
@@ -98,20 +103,23 @@ entity.registrant.anon_delete_form:
   requirements:
     _access: 'TRUE'
     uuid: '[0-9a-f]{8}-([0-9a-f]{4}-){3}[0-9a-f]{12}'
-  parameters:
+  options:
+    parameters:
       eventinstance:
         type: entity:eventinstance
       uuid:
         type: string
 
 # Registrant listing.
-entity.registrant.add_form:
+entity.registrant.instance_listing:
   path: '/events/{eventinstance}/registrations'
   defaults:
-    _entity_form: registrant.add
-    _title: 'Registrations'
+    _entity_list: 'registrant'
+    _title: 'Registrants'
   requirements:
-    _entity_access: 'registrant.list'
-  parameters:
+    _permission: 'access registrant overview'
+    _custom_access:  '\Drupal\recurring_events_registration\Controller\RegistrantController::hasRegistration'
+  options:
+    parameters:
       eventinstance:
         type: entity:eventinstance

modules/recurring_events_registration/src/Controller/RegistrantController.php

@@ -7,6 +7,8 @@ use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Drupal\Core\Render\RendererInterface;
 use Drupal\recurring_events_registration\Entity\RegistrantInterface;
+use Drupal\Core\Access\AccessResult;
+use Drupal\recurring_events\Entity\EventInstance;
 
 /**
  * The RegistrantController class.
@@ -39,6 +41,27 @@ class RegistrantController extends ControllerBase implements ContainerInjectionI
     );
   }
 
+  /**
+   * Check if registration is enabled.
+   *
+   * @param Drupal\recurring_events\Entity\EventInstance $eventinstance
+   *   The eventinstance entity.
+   *
+   * @return Drupal\Core\Access\AccessResultInterface
+   *   Whether access is allowed based on whether registration is enabled.
+   */
+  public static function hasRegistration(EventInstance $eventinstance) {
+    if (!empty($eventinstance)) {
+      $service = \Drupal::service('recurring_events_registration.creation_service');
+      $service->setEvents($eventinstance);
+      if ($service->hasRegistration()) {
+        return AccessResult::allowed();
+      }
+      return AccessResult::forbidden();
+    }
+    return AccessResult::neutral();
+  }
+
   /**
    * Return a dynamic page title for a Registrant.
    *