/// <summary>
/// 获取用户该活动商品下的砍价记录
/// </summary>
/// <param name="userId"></param>
/// <param name="activityProductId"></param>
/// <returns></returns>
public async Task <OperationResult <BargainProductHistory> > FetchBargainProductHistoryAsync(Guid userId,
int activityProductId, string pid)
{
if (userId == Guid.Empty || activityProductId < 0)
{
return(OperationResult.FromError <BargainProductHistory>(ErrorCode.ParameterError, "参数不正确"));
}
var result = await BargainManager.FetchBargainProductHistory(userId, activityProductId, pid);
return(OperationResult.FromResult(result));
}