public static ValidationResult Validate(ReleaseUpdateCommand cmd)
{
if (!string.IsNullOrEmpty(cmd.Title) ||
!string.IsNullOrEmpty(cmd.Genre) ||
!string.IsNullOrEmpty(cmd.Artist) ||
cmd.Cover != null)
{
return(ValidationResult.Ok);
}
return(ValidationResult.ErrorOf("Command has to update at least one field"));
}
private bool IsMessageValid(ReleaseUpdateCommand cmd)
{
if (cmd == null || cmd.ReleaseId != PersistenceId)
{
return(false);
}
if (_state.Timestamp >= cmd.Timestamp)
{
return(false);
}
return(CommandValidator.Validate(cmd).Success);
}
private bool HandleUpdateMessage(ReleaseUpdateCommand cmd)
{
if (IsMessageValid(cmd))
{
Persist(cmd, c =>
{
UpdateState(c);
TellStateUpdated();
});
return(true);
}
return(false);
}
private void UpdateState(ReleaseUpdateCommand command)
{
_state = _state.Update(command);
}
public void UpdateRelease(ReleaseUpdateCommand updateRelease)
{
WithValidation(() => CommandValidator.Validate(updateRelease));
ActorModel.TellReleaseActor(updateRelease.ReleaseId, updateRelease);
}
public void UpdateRelease([FromBody] ReleaseUpdateCommand command)
{
_releaseService.UpdateRelease(command);
}