diff --git a/backend/dbhelper/relation.py b/backend/dbhelper/relation.py
deleted file mode 100644
index f2653e6..0000000
--- a/backend/dbhelper/relation.py
+++ /dev/null
@@ -1,22 +0,0 @@
-from dbhelper.menu import get_menu
-from models import RoleMenuModel, UserRoleModel
-from schemas import UserRole
-
-
-async def user_assigned_role(data: UserRole):
-    """给用户分配角色"""
-    return await UserRoleModel.create(**data.dict())
-
-
-async def role_assigned_menu(data):
-    """给角色分配菜单"""
-    for mid in data.menus:
-        if await get_menu({"id": mid}) is None:
-            return mid
-
-    # 1. 先把所有数据做删除
-    await RoleMenuModel.filter(rid=data.rid).update(status=9)
-    # 2. 新增数据
-    await RoleMenuModel.bulk_create(
-        [RoleMenuModel(rid=data.rid, mid=mid) for mid in data.menus]
-    )