Storm\Drivers\Platforms\Mysql\Syncing\TableTraitManager::MapIndexDirection PHP Метод

    private function MapIndexDirection($Direction)
    {
        switch ($Direction) {
            case Traits\IndexDirection::Ascending:
                return 'ASC';
            case Traits\IndexDirection::Descending:
                return 'DESC';
            default:
                throw new \Storm\Core\UnexpectedValueException('Unknown index direction: %s', $Direction);
        }
    }