用户密码限制优化

app/Http/Controllers/Admin/UserController.php

@@ -160,8 +160,11 @@ class UserController extends BaseController
         ];
         if ($id) {
             $this->validateId($id, AdminUsers::class);
-            $rules['password'] = 'between:12,30';
-            unset($messages['password.required']);
+            if (!$data['password']) {
+                unset($messages['password.required']);
+                unset($messages['password.between']);
+                unset($rules['password']);
+            }
             $rules['status'] = 'required|in:0,1';
             $messages['status.required'] = __('validation.admin_user.s_empty');
             $messages['status.in'] = __('validation.admin_user.s_in');