Ip\Internal\Grid\Model\Config::orderBy PHP Method

    public function orderBy($statusVariables)
    {
        if (empty($statusVariables['order']) && !empty($this->config['orderBy'])) {
            return $this->config['orderBy'];
        } else {
            $orderFieldName = $this->orderField($statusVariables);
            $orderField = $this->getField($orderFieldName);
            if (!empty($orderField['multilingual'])) {
                $table = $this->languageTableName();
            } else {
                $table = $this->tableName();
            }
            return $table . ".`" . $orderFieldName . "` " . $this->orderDirection($statusVariables);
        }
    }