public Task <AsyncTaskResult> HandleAsync(SpecificationReservedEvent evnt)
{
return(TryTransactionAsync(async(connection, transaction) =>
{
var effectedRows = await connection.UpdateAsync(new
{
Version = evnt.Version,
EventSequence = evnt.Sequence
}, new
{
Id = evnt.AggregateRootId,
//Version = evnt.Version - 1
}, ConfigSettings.GoodsTable, transaction);
if (effectedRows == 1)
{
var tasks = new List <Task>();
//插入预定记录
foreach (var reservationItem in evnt.ReservationItems)
{
tasks.Add(connection.InsertAsync(new
{
GoodsId = evnt.AggregateRootId,
ReservationId = evnt.ReservationId,
SpecificationId = reservationItem.SpecificationId,
Quantity = reservationItem.Quantity
}, ConfigSettings.ReservationItemsTable, transaction));
}
//更新规格的可用数量
foreach (var specificationAvailableQuantity in evnt.SpecificationAvailableQuantities)
{
tasks.Add(connection.UpdateAsync(new
{
AvailableQuantity = specificationAvailableQuantity.AvailableQuantity
}, new
{
GoodsId = evnt.AggregateRootId,
Id = specificationAvailableQuantity.SpecificationId
}, ConfigSettings.SpecificationTable, transaction));
}
Task.WaitAll(tasks.ToArray());
}
}));
}
/// <summary>
/// 某个商品发来的预定成功消息
/// </summary>
/// <param name="message"></param>
/// <returns></returns>
public Task <AsyncTaskResult> HandleAsync(SpecificationReservedEvent evnt)
{
//发送单个商品预定成功指令给订单 订单处理是否全部预定成功
return(_commandService.SendAsync(new ConfirmOneReservationCommand(evnt.ReservationId, evnt.AggregateRootId, true)));
}
private void Handle(SpecificationReservedEvent evnt)
{
_reservations.Add(evnt.ReservationId, evnt.ReservationItems);
}
