Php 使用ArrayDataProvider使用一个数据提供程序对混合模型进行排序

我曾经混合模型，然后将它们合并到一个数据提供者中。我在grid view中使用了数据提供程序，一切正常。 但是我需要将网格视图按一列排序。我尝试了很多解决方案，但都没有成功

这是我的型号代码（按项目订单）

任何解决方案都是非常好的，即使使用纯PHP对数组进行排序，我想都可以解决这个问题。

您可以使用

usort（$finalList，function（$a，$b）{
返回$a['item_order']<$b['item_order']；
});

在回调

>中添加您的条件，
public function getAllSelectedItemsInTheUnit($unitId, $grid = false)
    {
        $finalList = array();
        $storiesList = array();
        $activityList = array();
        $breakList = array();
        $stories = UnitStories::find()->joinWith(['story'])->where("unit_id=$unitId")->all();
        if (count($stories) > 0) {
            foreach ($stories as $item) {
                $storiesList[] = [
                    'key' => self::TYPE_STORY . $item->id,
                    'id' => $item->id,
                    'title' => $item->story->title,
                    'type' => self::TYPE_STORY,
                    'item_order' => $item->unit_order,
                ];
            }
        }

        $activities = UnitActivities::find()->joinWith(['activity'])->where("unit_id=$unitId")->all();
        if (count($activities) > 0) {
            foreach ($activities as $item) {
                $activityList[] = [
                    'key' => self::TYPE_ACTIVITY . $item->id,
                    'id' => $item->id,
                    'title' => $item->activity->title,
                    'type' => self::TYPE_ACTIVITY,
                    'item_order' => $item->activity_order,
                ];
            }
        }

        $breaks = UnitBreaks::find()->where("unit_id=$unitId")->all();
        if (count($breaks) > 0) {
            foreach ($breaks as $item) {
                $breakList[] = [
                    'key' => self::TYPE_BREAK . $item->id,
                    'id' => $item->id,
                    'title' => $item->title,
                    'type' => self::TYPE_BREAK,
                    'item_order' => $item->unit_order,
                ];
            }
        }
         $finalList = array_merge($storiesList, $activityList, $breakList);
         $dataProvider = new ArrayDataProvider([
                'allModels' => $finalList, 'key' => 'key',
                'sort' => [
                    'attributes' => ['item_order'],
                ],

            ]);

            return $dataProvider;


    }

usort($finalList, function ($a, $b) {
    return $a['item_order'] < $b['item_order'];
});