Question

我有来自模型/订单关系的PK（Auto Inc）与来自models / preorder的FK id_order，在我的CRUD操作中，例如actionCreate，我无法在表中插入attibutes preorder，因为id（PK）从订单总是null。我该如何解决这个问题？。

这是我的控制器

$cartPositions = Yii::$app->cart->getPositions();

  if (!$cartPositions or $cartPositions === null) {
      return $this->redirect(['index']);
  }

  $dataProvider = new ArrayDataProvider([
      'allModels' => $cartPositions,
  ]);

    $model = new Order();
    $model_po = new Preorder();
    $postData = Yii::$app->request->post();

        if ($model->load($postData) && $model_po->load($postData)) {
        //model->save(false);
        $model->status = 5;
        $model_po->id_order = $model->id;
        $model->total_cost = Yii::$app->cart->getCost();
        $model->date = date('Y-m-d H:i');
        $model->data = Yii::$app->cart->getSerialized();
        $model_po->name = $model->name;
        $model_po->phone = $model->phone;
        $model_po->remarks = $model->message;
        $model_po->created_at = $model->date;
        //$model_po->save();
        if (Model::validateMultiple([$model, $model_po]) && $model->save(false) && $model_po->save()) {
            Yii::$app->session->setFlash('success', 'Thank You');
            Yii::$app->mailer->compose('order/html', [
                'model' => $model,
                //'model_po' => $model_po,
                'dataProvider' => $dataProvider,
            ])
                //->setFrom(Yii::$app->params['email']['from'])
                // ->setTo(Yii::$app->params['email']['to'])
                // ->setSubject('The site posted a new order')
                // ->send();

                ->setFrom(Yii::$app->params['email']['from'])
                ->setTo(Yii::$app->params['email']['to'])
                ->setSubject('The site posted a new Preorder')
                ->send();

            Yii::$app->cart->removeAll();
            return $this->render('orderSuccess', [
                'model' => $model,
                //'model_po' => $model_po,
            ]);
        }
    } else
    {return $this->render('create_po', [
      'model' => $model,
      'model_po' => $model_po,
      'dataProvider' => $dataProvider,
    ]);}
  }

模型/顺序

public function rules()
{
    return [
        [['status', 'total_cost', 'date', 'data', 'name', 'phone'], 'required'],
        [['code_order'], 'autonumber', 'format'=>'orderNum', 'digit'=>4],
        [['status', 'total_cost'], 'integer'],
        [['date'], 'safe'],
        [['data', 'message'], 'string'],
        [['name', 'email', 'phone'], 'string', 'max' => 255]
    ];
}

模型/预序

public function rules()
{
    return [
        [['id_order', 'address'], 'required'],
        [['id_order'], 'integer'],
        [['created_at', 'updated_at'], 'safe'],
        [['address', 'remarks'], 'string', 'max' => 500],
        [['id_order'], 'exist', 'skipOnError' => true, 'targetClass' => Order::className(), 'targetAttribute' => ['id_order' => 'id']],
    ];
}

错误信息：

完整性约束违规 - yii \ db \ IntegrityException SQLSTATE [23000]：完整性约束违规：1048列＆＃39; id_order＆＃39;不能为空正在执行的SQL是：INSERT INTO preorder（address，id_order，name，phone，remarks，created_at）价值观（＆＃39;＆＃39;，NULL，＆＃39;姓名＆＃39;，＆＃39; 121324325＆＃39;，＆＃39;＆＃39;，＆＃39; 2016-07-23 17 ：01＆＃39）

错误信息：数组（ [0] =＆gt; 23000 [1] =＆gt; 1048 [2] =＆gt;专栏＆＃39; id_order＆＃39;不能为空

我尝试了getPrimaryKey（）和最后一次插入id（）不起作用，我试图删除$ modelpo-＆gt; id_order = $ model-＆gt; id结果是两个表填充但id_order为0

Answer 1

$ model-＆gt; id在成功$ model-＆gt; save（）之前为空，因此您不应在此之前将其值分配给$ model_po-＆gt; id_order。

这是transaction的好地方，因此您可以先验证数据，然后确保订单已保存，然后使用正确的id_order保存预订。

同时查看link()方法。

Answer 2

为什么不使用afterSave（）？它将定义解决您的问题

Yii2无法插入带有id（PK）的属性（FK）

2 个答案: