/**
     * Creates a new ProductConfig model.
     * If creation is successful, the browser will be redirected to the 'view' page.
     * @return mixed
     */
    public function actionCreate()
    {
        $model = new ProductConfig();

        if ($model->load(Yii::$app->request->post()) && $model->save()) {
            return true;
        } else {
            return $this->renderPartial('_form', [
                'model' => $model,
            ]);
        }
    }