fix

app/Models/InterestCirclePicture.php

@@ -13,6 +13,7 @@ use Illuminate\Database\Eloquent\SoftDeletes;
 class InterestCirclePicture extends Model
 {
     //
+    use SoftDeletes;
     protected $table = 'interest_circle_pictures';
     protected $guarded = [];
 

app/Repositories/Circle/CircleRepository.php

@@ -235,6 +235,12 @@ class CircleRepository
         DB::beginTransaction();
         try {
             $circle->delete();
+            //删除图片后，判断该条是否为主信息，如果为主信息，则更新同批次下一条为主信息
+            if($circle->is_main==1){
+                $tempPic = $this->interestCirclePicture->where('patch_num', $circle->patch_num)->first();
+                $tempPic->is_main=1;
+                $tempPic->save();
+            }
             DB::commit();
             return Response::create();