From b2dab8b059297c53efdc553b34d42691cd454c75 Mon Sep 17 00:00:00 2001
From: Bai <baijiangjie@gmail.com>
Date: Wed, 10 Jun 2026 10:44:21 +0800
Subject: [PATCH] fix: update user empty ukey_sn field value

---
 .../backends/ukey/vendors/ji_da/sdk_config.yaml          | 2 +-
 .../backends/ukey/vendors/long_mai/sdk_config.yaml       | 2 +-
 apps/users/serializers/user.py                           | 9 +++++++++
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/apps/authentication/backends/ukey/vendors/ji_da/sdk_config.yaml b/apps/authentication/backends/ukey/vendors/ji_da/sdk_config.yaml
index 77d5e5da8..2815f7ec1 100644
--- a/apps/authentication/backends/ukey/vendors/ji_da/sdk_config.yaml
+++ b/apps/authentication/backends/ukey/vendors/ji_da/sdk_config.yaml
@@ -297,7 +297,7 @@ operations:
           url_format: 
             user_id: "{{ user.id }}"
           body:
-            ukey_sn: null
+            ukey_sn: ""
           register: user
         
     - key: issueCert
diff --git a/apps/authentication/backends/ukey/vendors/long_mai/sdk_config.yaml b/apps/authentication/backends/ukey/vendors/long_mai/sdk_config.yaml
index 39028feff..3cb850247 100644
--- a/apps/authentication/backends/ukey/vendors/long_mai/sdk_config.yaml
+++ b/apps/authentication/backends/ukey/vendors/long_mai/sdk_config.yaml
@@ -359,7 +359,7 @@ operations:
           url_format: 
             user_id: "{{ user.id }}"
           body:
-            ukey_sn: null
+            ukey_sn: ""
           register: user
         
     - key: issueCert
diff --git a/apps/users/serializers/user.py b/apps/users/serializers/user.py
index 7bbf9dc6d..99803d4c2 100644
--- a/apps/users/serializers/user.py
+++ b/apps/users/serializers/user.py
@@ -325,6 +325,14 @@ class UserSerializer(
                 attrs.pop(field, None)
         return attrs
 
+    @staticmethod
+    def clean_ukey_fields(attrs):
+        for field in ("ukey_sn",):
+            value = attrs.get(field)
+            if value is None:
+                attrs.pop(field, None)
+        return attrs
+
     def check_disallow_self_update_fields(self, attrs):
         request = self.context.get("request")
         if not request or not request.user.is_authenticated:
@@ -348,6 +356,7 @@ class UserSerializer(
         attrs = self.check_disallow_self_update_fields(attrs)
         attrs = self.change_password_to_raw(attrs)
         attrs = self.clean_auth_fields(attrs)
+        attrs = self.clean_ukey_fields(attrs)
         password_strategy = attrs.pop("password_strategy", None)
         request = get_current_request()
         if request: