bug

app/Http/Controllers/Admin/Map/LandmarkController.php

@@ -120,7 +120,7 @@ class LandmarkController extends Controller
         $data = (array) request('data');
         $id = request('id');
         MapBannerModel::where('mark_id',$id)->delete();
-        if($data['banner']['url']){
+        if(!empty($data['banner'])){
             foreach($data['banner']['url'] as $key=>$val){
                 $add['image'] = $this->formatImgUrl($val);
                 $add['mark_id'] = $id;