async def favorite_delete(ns={}):
    """
    删除用户收藏（软删除）
    :param ns: 包含id或userid+productid+favorite_type参数
    :return: 操作结果
    """
    db = DBPools()
    async with db.sqlorContext('kboss') as sor:
        try:
            if ns.get('id'):
                # 根据收藏ID删除
                update_dic = {
                    'id': ns.get('id'),
                    'del_flg': '1'
                }
                await sor.U('user_favorite', update_dic)
            elif ns.get('userid') and ns.get('productid'):
                # 根据用户ID和产品ID删除
                update_sql = """
                    UPDATE user_favorite 
                    SET del_flg = '1' 
                    WHERE userid = '%s' AND productid = '%s' AND favorite_type = '%s' AND del_flg = '0'
                """ % (ns.get('userid'), ns.get('productid'), ns.get('favorite_type', 'product'))
                await sor.execute(update_sql)
            else:
                return {
                    'status': False,
                    'msg': '缺少必要参数'
                }
                
            return {
                'status': True,
                'msg': '取消关注收藏成功'
            }
        except Exception as e:
            await sor.rollback()
            return {
                'status': False,
                'msg': '取消关注收藏失败, %s' % str(e)
            }

ret = await favorite_delete(params_kw)
return ret