public function hasSiblings($objectTypes = [Object::OBJECT_TYPE_OBJECT, Object::OBJECT_TYPE_FOLDER])
{
$c = $this->db->fetchOne("SELECT o_id FROM objects WHERE o_parentId = ? and o_id != ? AND o_type IN ('" . implode("','", $objectTypes) . "')", [$this->model->getParentId(), $this->model->getId()]);
return (bool) $c;
}