菜单增加排序

models/system/user.go

 	var userMenu []model.SysMenu
 	var err error
 	if menu.MenuIds != "" {
-		sql = `select * from sys_menu where menu_id in ('` + strings.Replace(menu.MenuIds, ",", "','", -1) + `')
+		sql = `select * from (select * from sys_menu where menu_id in ('` + strings.Replace(menu.MenuIds, ",", "','", -1) + `')
 		UNION
-		select * from sys_menu where menu_id in (select father_id from sys_menu where menu_id in ('` + strings.Replace(menu.MenuIds, ",", "','", -1) + `'))
+		select * from sys_menu where menu_id in (select father_id from sys_menu where menu_id in ('` + strings.Replace(menu.MenuIds, ",", "','", -1) + `'))) s order by order_no asc
 		`
 		err = m.db.Sql(sql).Find(&userMenu)
 	}