Yii2修改find​​（）方法的模型搜索方法（） [英] Yii2 Modify find() Method in Model search()

问题描述

我想修改find​​（）方法的模型里面搜索方法，它抛出数据提供者属性必须设置为错误。

I am trying to modify the find() method inside the model search and it throws an error "The data provider property must be set".

下面是我的搜索模式：

public function search($params)
{

    $userID = Yii::$app->user->identity->id;

    $groups = GroupAccess::find()
    ->where(['user_id' => $userID, 'item_name' => 'group_creator'])
        ->asArray()
        ->all();
        foreach ($groups as $group) {
            $accessGroups[] = $group['group_id'];
        }

    $query = Group::find($accessGroups);

    $dataProvider = new ActiveDataProvider([
        'query' => $query,
    ]);

    $this->load($params);

    if (!$this->validate()) {
        // uncomment the following line if you do not want to any records when validation fails
        // $query->where('0=1');
        return $dataProvider;
    }

    $query->andFilterWhere([
        'id' => $this->id,
        'status_id' => $this->status_id,
        //'created_user_id' => $this->created_user_id,
        'created_date' => $this->created_date,
        'profile_updated_user_id' => $this->profile_updated_user_id,
        'profile_updated_date' => $this->profile_updated_date,
        'last_accessed_user_id' => $this->last_accessed_user_id,
        'last_accessed_date' => $this->last_accessed_date,
    ]);

    $query->andFilterWhere(['like', 'name', $this->name])
        ->andFilterWhere(['like', 'description', $this->description]);

    return $dataProvider;
}

和这里是我的控制器操作：

And here is my controller action:

$searchModel = new GroupSearch();
    $dataProvider =    $searchModel->search(Yii::$app->request->queryParams);

if (Yii::$app->request->isPjax) {
        return $this->renderAjax('groups', [
        'searchModel' => $searchModel,
        'dataProviderMine' => $dataProvider,
    ]);
    } else {
        return $this->render('groups', [
        'searchModel' => $searchModel,
        'dataProviderMine' => $dataProvider,
    ]);
    }

}

细化作为查询用户应该能够看到其它基团是很重要的。

It is important to refine the query as the user should be able to see other groups.

我怎样才能修改find​​（）方法是否正确？

How can i modify the find() method properly?

感谢。

推荐答案

我看到两个错误的位置：

I see two bugs here:

1. 您查找方法

1. Your find method

$query = Group::find($accessGroups)

将无法正常工作 - 只是用

will not work - just replace it with

$query = Group::find()->where(['id' => $accessGroups]);

我猜的数据提供程序属性必须设置为错误是由您的看法code。例如。如果您使用的是GridView控件，您应该设置它的'dataProvider中'插件选项：

I guess "The data provider property must be set" error is caused by your view code. E.g. if you are using GridView, you should set its 'dataProvider' widget option:

GridView::widget([
    'dataProvider' => $dataProviderMine,
    'searchModel' => $searchModel,
    'columns' => [
        'id', 'status_id', 'created_date' // your view columns here
    ]
])

也考虑使用子查询在您的搜索方式：

Consider also using sub queries in your search method:

$idAccessQuery = GroupAccess::find()
    ->where(['user_id' => $userID, 'item_name' => 'group_creator'])
    ->select('group_id');
$query = Group::find()->where([
    'id' => $idAccessQuery
]);

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