private function _getUsersSpecificConfig()
{
$sql = 'SELECT c.`name`, c.`value` ' . 'FROM `:prefix:table_custom_config` c, `:prefix:table_members` m ' . "WHERE c.`type` = ':type' AND c.`type_id` = m.`usergroup_id` AND m.`id` = :id";
$sql = iaDb::printf($sql, array('prefix' => $this->_iaDb->prefix, 'table_custom_config' => iaCore::getCustomConfigTable(), 'table_members' => iaUsers::getTable(), 'id' => $this->_typeId));
return ($rows = $this->_iaDb->getKeyValue($sql)) ? $rows : array();
}