Ouzo\Tools\Model\Template\Dialect\MySqlDialect::_getPrimaryKey PHP Метод

    private function _getPrimaryKey($tableName)
    {
        $primaryKey = Db::getInstance()->query("SHOW KEYS FROM {$tableName} WHERE Key_name = 'PRIMARY'")->fetch();
        if ($primaryKey) {
            return Arrays::getValue($primaryKey, 'Column_name');
        } else {
            return '';
        }
    }