search - Yii2 修改 Model search() 中的 find() 方法

Question

我试图修改模型搜索中的 find() 方法，但它抛出错误“必须设置数据提供程序属性”。

这是我的搜索模型:

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;
}

这是我的 Controller 操作:

$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,
    ]);
    }

}

优化查询非常重要，因为用户应该能够看到其他组。

如何正确修改find​​()方法？

谢谢。

Answer 1

我在这里看到两个错误:

1. 您的查找方法

   $query = Group::find($accessGroups)

   不起作用 - 只需将其替换为

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

2. 我猜“必须设置数据提供程序属性”错误是由您的 View 代码引起的。例如。如果您使用 GridView，则应该设置其“dataProvider”小部件选项:

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

3. 还可以考虑在搜索方法中使用子查询:

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