async def delpromoting(ns):
    """
    删除促销活动
    :param user_id:
    """
    db = DBPools()
    async with db.sqlorContext('kboss') as sor:
        if ns:
            ns['del_flg'] = '1'
            await sor.U('promoting', ns)
            return {'status': True, 'msg': '删除成功'}
    return {'status': False, 'msg': '删除失败'}

ret = await delpromoting(params_kw)
return ret