Yii2数据提供者默认排序

在Yii 1.1中，此代码适用于默认排序：

$dataProvider = new CActiveDataProvider('article',array(
    'sort'=>array(
        'defaultOrder'=>'id DESC',
    ),
));

如何在Yii2中设置默认排序？

尝试以下代码，但没有结果：

$dataProvider = new ActiveDataProvider([
    'query' => $query,
    'sort' => ['defaultOrder'=>'topic_order asc']
]);

我认为有适当的解决方案。配置yii\data\Sort对象：

 $dataProvider = new ActiveDataProvider([
     'query' => $query,
     'sort'=> ['defaultOrder' => ['topic_order' => SORT_ASC]],
 ]);

官方文档链接

要么

       $dataProvider->setSort([
        'defaultOrder' => ['topic_order'=>SORT_DESC],
        'attributes' => [...

defaultOrder包含一个数组，其中key是列名，value是a SORT_DESC或 SORT_ASC这就是下面的代码不起作用的原因。

$dataProvider = new ActiveDataProvider([
        'query' => $query,
        'sort' => ['defaultOrder'=>'topic_order asc']
    ]);

正确的方法

$dataProvider = new ActiveDataProvider([
    'query' => $query,
    'sort' => [
        'defaultOrder' => [
            'topic_order' => SORT_ASC,
        ]
    ],
]);

注意：如果查询已经指定了orderBy子句，则最终用户（通过sort配置）给出的新排序指令将附加到现有的orderBy子句中。来自终端用户的分页请求（通过分页配置）将覆盖任何现有的limit和offset子句。

您可以从Yii2数据提供者指南中详细了解

通过在查询中传递排序对象进行排序

 $sort = new Sort([
        'attributes' => [
            'age',
            'name' => [
                'asc' => ['first_name' => SORT_ASC, 'last_name' => SORT_ASC],
                'desc' => ['first_name' => SORT_DESC, 'last_name' => SORT_DESC],
                'default' => SORT_DESC,
                'label' => 'Name',
            ],
        ],
    ]);

    $models = Article::find()
        ->where(['status' => 1])
        ->orderBy($sort->orders)
        ->all();

如果您有CRUD（索引），并且需要设置默认排序方式，以对GridView或ListView或其他进行排序...示例

public function actionIndex()
{
    $searchModel = new NewsSearch();
    $dataProvider = $searchModel->search(Yii::$app->request->queryParams);
    // set default sorting
    $dataProvider->sort->defaultOrder = ['id' => SORT_DESC];

    return $this->render('index', [
        'searchModel' => $searchModel,
        'dataProvider' => $dataProvider,
    ]);
}

您需要添加

$dataProvider->sort->defaultOrder = ['id' => SORT_DESC];

尝试这个

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

$sort = $dataProvider->getSort();

$sort->defaultOrder = ['id' => SORT_ASC];

$dataProvider->setSort($sort);

$dataProvider = new ActiveDataProvider([ 
    'query' => $query, 
    'sort'=> ['defaultOrder' => ['iUserId'=>SORT_ASC]] 
]);

您可以像这样修改搜索模型

$dataProvider = new ActiveDataProvider([
        'query' => $query,
        'sort' => [
            'defaultOrder' => ['user_id ASC, document_id ASC']
        ]
    ]);

    $modelProduct       =   new Product();
    $shop_id            =   (int)Yii::$app->user->identity->shop_id;

    $queryProduct       =   $modelProduct->find()
                            ->where(['product.shop_id'  => $shop_id]);


    $dataProviderProduct    =   new ActiveDataProvider([
                                    'query'         =>  $queryProduct,
                                     'pagination' => [ 'pageSize' => 10 ],
                                    'sort'=> ['defaultOrder' => ['id'=>SORT_DESC]]
                                ]);