Php Yii2-如何在操作更新时在depdrop子对象中显示选定值？

我使用了来自Kartik的扩展，用于创建依赖的下拉列表，称为DepDrop

我的从属模式摄政->地区->村庄

创建操作时，一切正常，运行良好，但更新操作时，在子下拉列表中不显示选定值

这里是我的视图代码：

<?= $form->field($model, 'fk_regencies_id')->dropDownList(ArrayHelper::map(Regencies::find()->all(),'id','name'), ['id'=>'regency_id']);?>

                          <?= Html::hiddenInput($model->fk_districs_id, $model->fk_districs_id, ['id'=>$model->fk_districs_id]) ?>

                          <?= $form->field($model, 'fk_districs_id')->widget(DepDrop::classname(), [

                                'options'=>['id'=>'district-id'],
                                'pluginOptions'=>[
                                    'depends'=>['regency_id'],
                                    'placeholder'=>'Select...',
                                    'url'=>Url::to(['/calonpegawai/district']),
                                    'params'=>[$model->fk_districs_id]
                                ]
                            ]) ?>

我的模型：

public function getDistrictList($regency_id)
{
    $data=\backend\models\Districts::find()
       ->where(['regency_id'=>$regency_id])
       ->select(['id','name' ])->asArray()->all();

    return $data;

}
public function getDefaultDistrict($param1)
{
    $data=\backend\models\Districts::find()
       ->where(['id'=>$param1])
       ->select(['id','name' ])->asArray()->all();

    return $data;

}

---

在视图中添加：'data'=>[$key=>$value]

<?= $form->field($model, 'fk_regencies_id')->dropDownList(ArrayHelper::map(Regencies::find()->all(),'id','name'), ['id'=>'regency_id']);?>

                      <?= Html::hiddenInput($model->fk_districs_id, $model->fk_districs_id, ['id'=>$model->fk_districs_id]) ?>

                      <?= $form->field($model, 'fk_districs_id')->widget(DepDrop::classname(), [
                            'data' => [$model->fk_regencies_id=>$model->fk_regencies_id],
                            'options'=>['id'=>'district-id'],

                            'pluginOptions'=>[
                                'depends'=>['regency_id'],
                                'placeholder'=>'Select...',
                                'url'=>Url::to(['/calonpegawai/district']),
                                'params'=>[$model->fk_districs_id]
                            ]
                        ]) ?>

在视图中添加javascript：

$script = <<< JS
    $("#regency_id").change(function(){
      $("#district-id").depdrop({
        depends: ['regency_id'],
        url: '/calonpegawai/district'
    });
    }).change();

JS； $this->registerJs$script

---

希望能为您提供帮助。

您能从inspector发布浏览器请求日志吗？@meysam我已经添加了图像，响应ajaxIt的Yi2调试面板，请发送浏览器控制台的日志。在firefox中按Ctrl+Shift+K，在Chrome中按F12显示控制台。

$script = <<< JS
    $("#regency_id").change(function(){
      $("#district-id").depdrop({
        depends: ['regency_id'],
        url: '/calonpegawai/district'
    });
    }).change();