使用KartikExpandRowColumnWidget在折叠的行中显示数据，我希望按特定记录的ID显示数据，
动作索引（）

public function actionIndex() {
        $searchModel = new CreateBookingsSearch();
        $dataProvider = $searchModel->search(Yii::$app->request->queryParams);
        $model = new CreateBookings();
        $data = CreateBookings::findOne($id);

        if (Yii::$app->request->post('hasEditable')) {
           $id = Yii::$app->request->post('editableKey');
           $model = CreateBookings::findOne($id);

           $out = Json::encode(['output'=>'', 'message'=>'']);
           $posted = current($_POST['CreateBookings']);
           $post = ['CreateBookings' => $posted];

           if ($model->load($post)) {
             $model->save();
             $output = '';
           }
           echo $out;
           return;
       }
        return $this->render('index', [
            'searchModel' => $searchModel,
            'dataProvider' => $dataProvider,
            'model' => $model,
            'data' => $data,
        ]);
 }

局部视图：

<?php echo Html::encode($data->check_in);?>
<?php echo Html::encode($data->check_out);?>

网格视图

'columns' => [
                [
                'class' => 'kartik\grid\ExpandRowColumn',
                'value' => function ($model,$key,$index,$column) {
                    return GridView::ROW_COLLAPSED;
                },

                'detail' => function ($model,$key,$index,$column) {
                    $searchModel = new CreateBookingsSearch();
                    $searchModel->booking_id = $model ->id;
                    $dataProvider = $searchModel->search(Yii::$app->request->queryParams);

                    return Yii::$app->controller->renderPartial('_expandrowview.php',[
                        'searchModel' => $searchModel,
                        'dataProvider' => $dataProvider,
                    ]);
                },
            ],

在索引中传递$data = CreateBookings::findOne($id);时出现错误Undefined variable: id。我需要类似于public function actionView($id)的内容作为索引public function actionIndex($id)需要在索引中传递id