public void Handle(GrouponParticipatedEvent evnt)
{
var eventSource = evnt.Source as GrouponParticipation;
var activity = _grouponActivityRepository.Get(eventSource.GrouponActivityId);
if (activity == null)
{
throw new Exception("找不到指定的活动记录。");
}
var buyCount = _grouponParticipationRepository.GetFiltered(o => o.GrouponActivityId == eventSource.GrouponActivityId).Sum(g => g.BuyCount);
if (buyCount >= activity.Count)
{
activity.SetCompleted();
}
_grouponActivityRepository.Update(activity);
_dbUnitOfWork.Commit();
_bus.Publish(evnt);
}
