Yii2数据提供程序默认排序

Question

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？

尝试下面的代码,但没有结果:

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

Answer 1

我认为有适当的解决方案

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

官方文档链接

Answer 2

要么

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

Answer 3

defaultOrder包含一个数组,其中key是列名,值是a SORT_DESC或者 SORT_ASC这就是代码无法工作的原因.

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

正确的方式

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

注意:如果查询已指定orderBy子句,则最终用户(通过排序配置)给出的新排序说明将附加到现有的orderBy子句.任何现有的限制和偏移子句将被最终用户的分页请求(通过分页配置)覆盖.

您可以从Yii2数据提供者指南中详细了解

排序通过在查询中传递Sort对象

 $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();

Answer 4

如果您有 CRUD（索引）并且您需要为 GridView、ListView 或更多设置默认排序控制器...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,
    ]);
}

你需要添加

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