edlp_d8/core/modules/content_moderation/src/ContentModerationStateAccessControlHandler.php

<?php

namespace Drupal\content_moderation;

use Drupal\Core\Access\AccessResult;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Entity\EntityAccessControlHandler;
use Drupal\Core\Entity\EntityInterface;

/**
 * The access control handler for the content_moderation_state entity type.
 *
 * @see \Drupal\content_moderation\Entity\ContentModerationState
 */
class ContentModerationStateAccessControlHandler extends EntityAccessControlHandler {

  /**
   * {@inheritdoc}
   */
  public function checkAccess(EntityInterface $entity, $operation, AccountInterface $account) {
    // ContentModerationState is an internal entity type. Access is denied for
    // viewing, updating, and deleting. In order to update an entity's
    // moderation state use its moderation_state field.
    return AccessResult::forbidden('ContentModerationState is an internal entity type.');
  }

  /**
   * {@inheritdoc}
   */
  protected function checkCreateAccess(AccountInterface $account, array $context, $entity_bundle = NULL) {
    // ContentModerationState is an internal entity type. Access is denied for
    // creating. In order to update an entity's moderation state use its
    // moderation_state field.
    return AccessResult::forbidden('ContentModerationState is an internal entity type.');
  }

}