def _escape(value):
    if value is None:
        return None
    return str(value).replace("'", "''")


async def chat_session_list(ns={}):
    """当前用户的对话会话列表（左侧栏历史）"""
    userid = ns.get('userid') or await get_user()
    if not userid:
        return {'status': False, 'msg': '未找到用户'}

    page_size = int(ns.get('page_size', 50))
    current_page = int(ns.get('current_page', 1))
    offset = (current_page - 1) * page_size

    db = DBPools()
    async with db.sqlorContext('kboss') as sor:
        try:
            count_sql = """
                SELECT COUNT(*) AS total_count FROM chat_session
                WHERE userid = '%s';
            """ % _escape(userid)
            total = (await sor.sqlExe(count_sql, {}))[0]['total_count']

            find_sql = """
                SELECT id, model, title, created_at, updated_at
                FROM chat_session
                WHERE userid = '%s'
                ORDER BY updated_at DESC
                LIMIT %s OFFSET %s;
            """ % (_escape(userid), page_size, offset)
            sessions = await sor.sqlExe(find_sql, {})

            return {
                'status': True,
                'msg': 'list success',
                'data': {
                    'total_count': total,
                    'page_size': page_size,
                    'current_page': current_page,
                    'sessions': sessions,
                },
            }
        except Exception as e:
            return {'status': False, 'msg': 'list failed, %s' % str(e)}


ret = await chat_session_list(params_kw)
return ret