def handle_group_member_list(self, group_id, member_list):
        """
        @brief      handle group member list & saved in DB
        @param      member_list  Array
        """
        fn = group_id + '.json'
        save_json(fn, member_list, self.data_dir)
        cols = [(
            group_id,
            m['UserName'],
            m['NickName'],
            m['DisplayName'],
            m['AttrStatus']
        ) for m in member_list]
        self.db.insertmany(Constant.TABLE_GROUP_USER_LIST(), cols)

        @brief      handle group member list & saved in DB
        @param      member_list  Array
        
wxbot_project_py2.7/wx_handler/wechat_msg_processor.py