逻辑调整

app/controller/admin/user/User.php

@@ -616,11 +616,20 @@ class User extends BaseController
         $id = (int)$this->request->param('uid', '');
         if (!$this->repository->exists($id))
             return app('json')->fail('数据不存在');
+        $is_cf = false;
         foreach ($partner_id as $k => $value) {
+            $count = array_count_values($partner_id); // 统计每个元素的出现次数
+            if (isset($count[$value]) && $count[$value] > 1) {
+                $is_cf = true;
+            }
             $partner_ids[$k] = (int)$value;
-            if (!$partnerRepository->exists((int)$value))
+            if (!$partnerRepository->exists((int)$value)) {
                 return app('json')->fail('所选合作人角色不存在');
             }
+        }
+        if($is_cf){
+            return app('json')->fail('请勿给用户设置重复的角色');
+        }
         foreach ($user_role_id as $k => $value) {
             $user_role_ids[$k] = (int)$value;
             if (!$partnerRepository->roleExists((int)$value))