覆盖Yii2中ActiveDataProvider的默认排序

Question

我有很多模特使用created_time.我希望所有的GridViews都能显示按created_timeDESC 排序的模型.

现在我写这样的东西

$dataProvider = new \yii\data\ActiveDataProvider([
        'query' => MyModel::find(),
        'sort' => [
            'defaultOrder' => [
                'created_time' => SORT_DESC
            ]
        ],
    ]);

sort我没有编写所有配置,而是尝试了以下方法,但没有任何效果.

1. 使用容器

   \Yii::$container->set(\yii\data\ActiveDataProvider::class,
           [
       'sort' => [
           'defaultOrder' => [
               'created_time' => SORT_DESC
           ]
       ]
   ]);
   

2. 覆盖sort扩展类.

   class ActiveDataProvider extends \yii\data\ActiveDataProvider {
   
       public $sort = [
           'defaultOrder' => [
               'created_time' => SORT_DESC
           ]
       ];
   
    }
   

3. init()在扩展类之前覆盖工作,但如果实例化尝试再次覆盖它将无法工作.

   class ActiveDataProvider extends \yii\data\ActiveDataProvider {
       public function init() {
           $this->sort = [
               'defaultOrder' => [
                   'created_time' => SORT_DESC
               ]
           ];
           parent::init();
       }
   
   }
   
   //but this won't work if I want to use the ascending
   $dataProvider = new \app\components\data\ActiveDataProvider([
       'query' => MyModel::find(),
       'sort' => [
           'defaultOrder' => [
               'created_time' => SORT_ASC
           ]
       ],
   ]);
   

Answer 1

要为单个GridView执行此操作,您可以添加'defaultOrder' => ['created_time' => SORT_DESC]到以下接受的数组setSort():

    $dataProvider->setSort([
        'attributes' => [
            'id',
            ...
        ],
        'defaultOrder' => ['created_time' => SORT_DESC]
    ]);