Question

我有三张桌子

checkoutcounter {id，name}
用户{id，username}
checkoutcounter_users {id，checkoutcounter_id，user_id}

我使用gii然后添加在checkoutcounter模型中（我添加和joinWith和find（） - ＆gt;但它仍然没有工作）：

public function getUser_display()
    {
        return $this->hasMany(User_display::className(), ['id' => 'user_id'])
        ->viaTable(CheckoutcounterUsers::tableName(), ['checkoutcounter_id' => 'id']
        );
    }

在checkoutcounter模型搜索中：

 public function search($params)
    {
        $query = FinanceSettingsCheckoutcounter::find()->with('user_display');

        $query->joinWith('user_display');
    }

我应该在checkoutcounter视图中添加什么来获取用户名或用户ID？为什么我在gridview中添加了＆＃39; =＆gt;＆＃39; user_display.id＆＃39;它没有显示任何数据？

echo yii\helpers\Json::encode($dataProvidercheckoutcounter);

显示

{"query":{"sql":null,"on":null,"joinWith":[[["user_display"],true,"LEFT JOIN"]],"select":null,"selectOption":null,"distinct":null,"from":null,"groupBy":null,"join":null,"having":null,"union":null,"params":[],"where":null,"limit":null,"offset":null,"orderBy":null,"indexBy":null,"modelClass":"app\\models\\FinanceSettingsCheckoutcounter","with":["user_display"],"asArray":null,"multiple":null,"primaryModel":null,"link":null,"via":null,"inverseOf":null},"key":null,"db":null,"id":null}

Answer 1

我不确定你是如何使用search（）函数的，但是你没有使用$ params ..而且它没有返回结果..

我相信查询应该是这样的：

public function search($params)
{
     $result = FinanceSettingsCheckoutcounter::find()->with('user_display')->all();
     echo yii\helpers\Json::encode($result);
}

如果您将此作为搜索模型的一部分使用，则返回dataProvider，请查看此链接

http://www.ramirezcobos.com/2014/04/16/displaying-sorting-and-filtering-model-relations-on-a-gridview-yii2/

如何使用联结表Yii2查看数据

1 个答案: