处理城市列表显示问题

backend/modules/shop/controllers/ExpressTemplateController.php

@@ -359,6 +359,7 @@ class ExpressTemplateController extends Controller
                 $j++;
             }
         }
+
         return $this->render('express_area_update', [
             'model' => $model, 'data' => $data, 'cities' => explode(',', $model->city), 'expressTemplateModel' => $expressTemplateModel
         ]);

backend/modules/shop/models/searchs/ExpressAreaSearch.php

@@ -2,6 +2,8 @@
 
 namespace backend\modules\shop\models\searchs;
 
+use backend\modules\shop\models\ars\City;
+use backend\modules\shop\models\ars\Province;
 use yii\base\Model;
 use yii\data\ActiveDataProvider;
 use yii\helpers\ArrayHelper;
@@ -57,12 +59,24 @@ class ExpressAreaSearch extends ExpressArea
             'id',
             ['attribute' => 'city',
                 'value' => function ($model) {
-                    $array = explode(',', $model->city);
+                    $expressAreas = ExpressArea::findOne($model->id);
+                    $expressAresCityIdArr = explode(',', $expressAreas->city);
                     $cities = [];
-                    foreach (\backend\modules\shop\models\ars\City::find()->andWhere(['in', 'city_id', $array])->all() as $city) {
-                        $cities[] = $city->name;
+                    $provinces = Province::find()->cache(0)->all();
+                    foreach ($provinces as $k => $v) {
+                        $cityId = City::find()
+                            ->select(['city_id'])
+                            ->where(['province_id' => $v->province_id])
+                            ->column();
+                        if (empty(array_diff($cityId, $expressAresCityIdArr))) {
+                            $cities[] = $v->name;
+                        }else{
+                            foreach (\backend\modules\shop\models\ars\City::find()->andWhere(['in', 'city_id', array_diff($cityId, array_diff($cityId, $expressAresCityIdArr))])->all() as $city) {
+                                $cities[] = $city->name;
+                            }
+                        }
                     }
-                    return implode(' // ', $cities);
+                    return implode(' , ', $cities);
                 },
             ],
             [

backend/modules/shop/views/express-template/express_area_update.php

@@ -43,7 +43,7 @@ Yii::$app->params['bsVersion'] = '4.x';
 
         <div class="form-group">
             <?= Html::submitButton('保存', ['class' => 'btn btn-success']) ?>
-            <?= Html::a('返回', ['index'], ['class' => 'btn btn-info']) ?>
+            <?= Html::a('返回', ['express-area-list', 'id' => $expressTemplateModel->id], ['class' => 'btn btn-info']) ?>
         </div>
 
         <?php ActiveForm::end(); ?>