public Result <Guid, Error> AddNote(AddNote.Command command, ApplicationUser author, Instant now)
{
Guard.Against.Null(command, nameof(command));
Guard.Against.Null(author, nameof(author));
Guard.Against.Default(now, nameof(now));
ValidateIdMatchOrThrow(command.SchoolId);
System.Diagnostics.Debug.Assert(command.Content != null);
return(Validate(new AddNote.Validator(), command)
.Ensure(
_ => this.IsNew == false,
new Error.ResourceNotFound(Messages.School_not_found))
.Map(
_ => {
var noteId = Guid.NewGuid();
Emit(new NoteAdded(
timestamp: now,
noteId: noteId,
authorId: author.Id,
content: command.Content));
return noteId;
}
));
}
public async Task <Result <Guid, Error> > Handle(AddNote.Command request, CancellationToken cancellationToken)
{
var author = await _userAccessor.GetUser();
var result = await _aggregateStore.Update <SchoolAggregate, SchoolId, Result <Guid, Error> >(
SchoolId.With(request.SchoolId), CommandId.New,
(aggregate) => aggregate.AddNote(request, author, _clock.GetCurrentInstant()),
cancellationToken);
return(result.Unwrap());
}
public async Task <Result <Nothing, Error> > Handle(AddNote.Command request, CancellationToken cancellationToken)
{
var maybeTraining = await _trainingRepo.GetById(request.TrainingId);
if (maybeTraining.HasNoValue)
{
return(Result.Failure <Nothing, Error>(new Error.ResourceNotFound(ErrorMessages.TrainingNotFound)));
}
var training = maybeTraining.Value;
var user = await _userAccessor.GetUser();
var now = _clock.GetCurrentInstant();
var result = await training.AddNote(user.Id, request.Content, now)
.Tap(async() => await _trainingRepo.Update(training));
return(result
.Match(
onSuccess: () => Result.Success <Nothing, Error>(Nothing.Value),
error => Result.Failure <Nothing, Error>(new Error.BadRequest(error))
));
}
public async Task <IActionResult> AddNote(AddNote.Command command)
{
var result = await _engine.Execute(command);
return(result.MatchToActionResult(success => Ok(success)));
}