11

app/services/admin_user.py

@@ -163,6 +163,19 @@ async def update_user(
     return user
 
 
+async def clear_device_serial(db: AsyncSession, user_id: int) -> User:
+    """管理员解绑：将用户 device_serial 置空。"""
+    user = await db.get(User, user_id)
+    if user is None:
+        raise AdminUserError("用户不存在")
+    if not (user.device_serial or "").strip():
+        raise AdminUserError("该用户未绑定设备")
+    user.device_serial = ""
+    await db.flush()
+    await db.refresh(user)
+    return user
+
+
 async def delete_user(db: AsyncSession, oem: User, user_id: int, *, actor_id: int) -> None:
     if user_id == actor_id:
         raise AdminUserError("不能删除当前登录账号")