protected bool IsRepeatedCommand(ISupplierProductCommand command, IEventStoreAggregateId eventStoreAggregateId, ISupplierProductState state)
{
bool repeated = false;
if (((ISupplierProductStateProperties)state).Version > command.AggregateVersion)
{
var lastEvent = EventStore.GetEvent(typeof(ISupplierProductEvent), eventStoreAggregateId, command.AggregateVersion);
if (lastEvent != null && lastEvent.CommandId == command.CommandId)
{
repeated = true;
}
}
return(repeated);
}
protected virtual void Update(ISupplierProductCommand c, Action <ISupplierProductAggregate> action)
{
var aggregateId = c.AggregateId;
var state = StateRepository.Get(aggregateId, false);
var aggregate = GetSupplierProductAggregate(state);
var eventStoreAggregateId = ToEventStoreAggregateId(aggregateId);
var repeated = IsRepeatedCommand(c, eventStoreAggregateId, state);
if (repeated)
{
return;
}
aggregate.ThrowOnInvalidStateTransition(c);
action(aggregate);
Persist(eventStoreAggregateId, aggregate, state);
}
private static bool IsCommandCreate(ISupplierProductCommand c)
{
return(c.Version == SupplierProductState.VersionZero);
}