public function deleteObjectStateGroup($groupId)
{
$this->deleteObjectStateGroupTranslations($groupId);
$query = $this->dbHandler->createDeleteQuery();
$query->deleteFrom($this->dbHandler->quoteTable('ezcobj_state_group'))->where($query->expr->eq($this->dbHandler->quoteColumn('id'), $query->bindValue($groupId, null, \PDO::PARAM_INT)));
$query->prepare()->execute();
}