/// <summary>
/// https://enterprisecraftsmanship.com/posts/validate-commands-cqrs/
/// </summary>
/// <param name="command"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public Task <Result> Handle(Command command, CancellationToken cancellationToken)
{
var driver = _db.Drivers.FirstOrDefault(d => d.Id == command.Id);
string error = null;
if (driver == null)
{
error = "Driver not found";
}
else
{
_db.Drivers.Remove(driver);
_db.SaveChanges();
// Or we could do the SOFT delete (like in EventSourcing):
//
// We'd still have the data in our event store.
// We'd publish a 'deleted' event which would remove/mark the data as deleted in read model.
//
// =====
// In general: ORM + events = a giant pile of #fail (c) Greg Young
// =====
}
var result = new Result
{
Error = error
};
if (error == null)
{
var @event = new DriverRemovedEvent()
{
DriverId = driver.Id
};
_mediator.Publish(@event);
}
return(Task.FromResult(result));
}
public Task Handle(DriverRemovedEvent message, CancellationToken cancellationToken)
{
// Send some see you soon e-mail
return(Task.CompletedTask);
}
public void Apply(DriverRemovedEvent aggregateRegisteredEvent)
{
Driver.MarkAsRemoved();
}
