www.aleph1.co.uk Git - yaffs-website/blob - web/modules/contrib/permissions_by_term/modules/permissions_by_entity/src/EventSubscriber/RemoveEntityFromViewEventSubscriber.php

   1 <?php
   2
   3 namespace Drupal\permissions_by_entity\EventSubscriber;
   4
   5 use Drupal\permissions_by_entity\Event\EntityFieldValueAccessDeniedEvent;
   6 use Drupal\permissions_by_entity\Event\PermissionsByEntityEvents;
   7 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
   8
   9 /**
  10  * Class RemoveEntityFromViewEventSubscriber.
  11  *
  12  * @package Drupal\permissions_by_entity\EventSubscriber
  13  */
  14 class RemoveEntityFromViewEventSubscriber implements EventSubscriberInterface {
  15
  16   /**
  17    * {@inheritdoc}
  18    */
  19   public static function getSubscribedEvents() {
  20     return [
  21       PermissionsByEntityEvents::ENTITY_FIELD_VALUE_ACCESS_DENIED_EVENT =>
  22       [
  23         'onEntityFieldAccessDenied',
  24       ],
  25     ];
  26   }
  27
  28   /**
  29    * Callback method.
  30    *
  31    * Callback method that will be called when the
  32    * ENTITY_FIELD_VALUE_ACCESS_DENIED_EVENT has been triggered.
  33    *
  34    * @param \Drupal\permissions_by_entity\Event\EntityFieldValueAccessDeniedEvent $event
  35    *   The event.
  36    */
  37   public function onEntityFieldAccessDenied(EntityFieldValueAccessDeniedEvent $event) {
  38     // Get the field.
  39     $field = $event->getField();
  40
  41     // Get the number of values this field contains.
  42     $num_values = $field->count();
  43
  44     // Get the current value of the field.
  45     $field_values = $field->getValue();
  46
  47     // Iterate over the values.
  48     for ($i = 0; $i < $num_values; $i++) {
  49       $field_entity = $field->get($i)->entity;
  50
  51       // If the entity matches the entity of the event.
  52       if ($field_entity === $event->getEntity()) {
  53         // Remove the this value from the values array.
  54         unset($field_values[$i]);
  55
  56         // We need to decrement the current index.
  57         $event->setIndex($event->getIndex() - 1);
  58       }
  59     }
  60
  61     // Set the field values.
  62     $field->setValue($field_values);
  63   }
  64
  65 }