trait ActionCommonTrait in Content Access 8

trait ActionCommonTrait {

  /**
   * Verifies that per content settings are activated for the given node.
   */
  protected function checkSetting(NodeInterface $node) {
    $config = \Drupal::configFactory()
      ->getEditable('content_access.settings');
    $type = $node
      ->getType();
    $settings = unserialize($config
      ->get('content_access_node_type.' . $type));
    if (isset($settings['per_node']) && $settings['per_node']) {
      return TRUE;
    }

    // If we didn't find any settings in content access for this type return
    // false as we don't want to process it.
    $this->logger
      ->log(LogLevel::WARNING, $this
      ->t("Can't set per content permissions for content type @type. Make sure to have per content settings activated for content types you want to alter access control for.", [
      '@type' => $node
        ->getType(),
    ]));
    return FALSE;
  }

  /**
   * Transforms the array of text values to an array keyed by $op and $rid.
   */
  protected function transformRulesValue($value) {
    $array = [];
    foreach ($value as $op_role) {
      $parts = explode(':', $op_role);

      // The first item is $op and the second $rid.
      $array[$parts[0]][] = $parts[1];
    }
    return $array;
  }

  /**
   * Apply the new grants to the affected node.
   */
  protected function aquireGrants(NodeInterface $node) {
    \Drupal::entityTypeManager()
      ->getAccessControlHandler('node')
      ->writeGrants($node);
  }

  /**
   * Process Rule's param, and grant by the passed operation.
   */
  protected function actionUser(array $params, $type) {
    $ops = [
      'view',
      'update',
      'delete',
    ];
    $settings = [];
    $node = $params['node'];
    foreach ($ops as $op) {
      if ($params['content_access_user_' . $op]) {
        $settings[$op] = $params['content_access_user_' . $op]
          ->id();
      }
    }
    foreach ($settings as $op => $uid) {
      $acl_id = content_access_get_acl_id($node, $op);
      acl_node_add_acl($node
        ->id(), $acl_id, (int) ($op == 'view'), (int) ($op == 'update'), (int) ($op == 'delete'), content_access_get_settings('priority', $node
        ->getType()));
      $this->database
        ->delete('acl_user')
        ->condition('acl_id', $acl_id)
        ->condition('uid', $uid)
        ->execute();
      if ($type == 'grant') {
        $this->database
          ->insert('acl_user')
          ->fields([
          'acl_id' => $acl_id,
          'uid' => $uid,
        ])
          ->execute();
      }
    }
    $this
      ->aquireGrants($node);
  }

}