public static function resort($table, $index)
 {
     $dbm = \CADB\DBM::instance();
     foreach ($index as $fid => $idx) {
         $que = "UPDATE {fields} SET `idx` = ? WHERE `table` = ? AND `fid` = ?";
         $dbm->execute($que, array("dsd", $idx + 1, $table, $fid));
     }
     self::$log .= "테이블: " . $table . "의 필드순서를 재조정했습니다.\n";
     \CADB\Log::fieldLog('modify', 0, self::$log);
 }