private function getMain($lib) { $format = "SELECT lib FROM `" . DB_PRE_CORE . "roles` where types=%d and id = (select pid from " . DB_PRE_CORE . "roles where types=%d and lib='%s' limit 1) limit 1"; $sql = sprintf($format, DB_TYPE_DIFFERENCE, DB_TYPE_DIFFERENCE, $lib); $m = parent::FetchOne($sql); return $m['lib']; }