sites_group_overrides-1.x-dev/src/Entity/GroupRelationship.php

<?php

namespace Drupal\sites_group_overrides\Entity;

use Drupal\Core\Entity\ContentEntityBase;
use Drupal\Core\Entity\EntityStorageInterface;
use Drupal\group\Entity\GroupRelationship as OriginalGroupRelationship;
use Drupal\group\Entity\GroupRelationshipInterface;
use Drupal\group\Entity\Storage\GroupRoleStorageInterface;

/**
 * Extends the GroupRelationship entity class.
 *
 * The original GroupRelationship saves the entity in postSave and postDelete.
 * This causes overides to end up in the original entity - which we avoid here.
 */
class GroupRelationship extends OriginalGroupRelationship {

  /**
   * {@inheritdoc}
   */
  public function postSave(EntityStorageInterface $storage, $update = TRUE) {

    if ($update === FALSE) {
      // We want to save the unchanged entity without overrides.
      $entity = $this->entityTypeManager()->getStorage($this->getEntity()->getEntityTypeId())->loadUnchanged($this->getEntity()->id());
      $entity->setSyncing(TRUE);
      // See parent::postSave() why this is neccessary.
      $entity->save();
    }

    return parent::postSave($storage);
  }

  /**
   * {@inheritdoc}
   */
  public static function postDelete(EntityStorageInterface $storage, array $entities) {
    ContentEntityBase::postDelete($storage, $entities);
    foreach ($entities as $group_relationship) {
      assert($group_relationship instanceof GroupRelationshipInterface);
      if ($entity = $group_relationship->getEntity()) {

        // We want to save the unchanged entity without overrides.
        $entity = \Drupal::entityTypeManager()->getStorage($entity->getEntityTypeId())->loadUnchanged($entity->id());
        $entity->setSyncing(TRUE);
        // See parent::postDelete() why this is neccessary.
        $entity->save();

        // If a membership gets deleted, we need to reset the internal group
        // roles cache for the member in that group, but only if the user still
        // exists. Otherwise, it doesn't matter as the user ID will become void.
        if ($group_relationship->getPluginId() == 'group_membership') {
          $role_storage = \Drupal::entityTypeManager()->getStorage('group_role');
          assert($role_storage instanceof GroupRoleStorageInterface);
          $role_storage->resetUserGroupRoleCache($group_relationship->getEntity(), $group_relationship->getGroup());
        }
      }
    }
  }

}