Yii2修改Model search()中的find()方法

Question

我正在尝试修改模型搜索中的 find() 方法，但它抛出错误 "The data provider property must be set"。

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;
}

这是我的控制器操作：

$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,
    ]);
    }

}

优化查询很重要，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：

您的查找方法

$query = Group::find($accessGroups)

将不起作用 - 只需将其替换为

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

我猜"The data provider property must be set"错误是由你的视图代码引起的。例如。如果您使用的是 GridView，则应设置其 'dataProvider' 小部件选项：

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

考虑在搜索方法中也使用子查询：

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

Yii2修改Model search()中的find()方法

Yii2 Modify find() Method in Model search()

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