YII2模型層添加數(shù)據(jù)為什么沒反應(yīng)？

在寫進(jìn)銷存的時候，在入庫的時候需要把商品加到倉庫中。代碼如下

   public function actionCreate()
    {
        $model = new Goods();
        $model->sku = strtoupper(uniqid());
        $model->datetime = time();
        $model->admin_id = Yii::$app->user->id;

        if ($model->load(Yii::$app->request->post())) {
            $cost = $model->cost_price;
            $number = $model->numbers;
            $model->total = $cost * $number;
            $models=ArrayHelper::toArray($model);
            if ($model) {
                $model->save();
                $models->add($models);
                return $this->redirect(['view', 'id' => $model->id]);
            }

        } else {
            return $this->render('create', [
                'model' => $model,
            ]);
        }
    }

這是添加到入庫表的，$models->add($models);是添加到倉庫表模型層的方法

  public function add($data)
    {

        foreach ($data as $k=>$v)
        {
            $asku = Warehouse::find()->where(['sku'=>$v['sku']])->one();
            $askuCount = Warehouse::find()->where(['sku'=>$v['sku']])->count();

        }
        if (!$askuCount)
        {
            $Warehouse=new Warehouse;
            $Warehouse->datetime=time();
            $Warehouse->cid=$data['cid'];
            $Warehouse->name=$data['name'];
            $Warehouse->sku=$data['sku'];
            $Warehouse->counts=$data['numbers'];
            $Warehouse->price=$data['price'];
            $Warehouse->flag=1;
            $Warehouse->save();
        }else{
            $asku->counts += $data['numbers'];
            $asku->timeLastOp=time();
            $asku->save();
        }
    }

可以打印出數(shù)據(jù)，但是不知道為什么添加之后不能再Warehouse這個表中添加數(shù)據(jù)，有人知道嗎?剛用框架兩天，不是很懂。