protected override async Task Handle(AddTripParticipantCommand request, CancellationToken cancellationToken)
{
if (await _userRepository.GetAsync(x => x.Id == request.TripParticipant.UserId) == null)
{
throw new EntityNotFoundException($"User with Id {request.TripParticipant.UserId} doesn't exist.");
}
var trip = await _tripsRepository.GetDetailsByIdAsync(request.TripParticipant.TripId);
if (trip == null)
{
throw new EntityNotFoundException($"Trip with Id {request.TripParticipant.UserId} doesn't exist.");
}
if (trip.TripParticipants.SingleOrDefault(x => x.UserId == request.TripParticipant.UserId) != null ||
trip.AuthorId == request.TripParticipant.UserId)
{
throw new UniqueConstraintViolatedException($"User with Id {request.TripParticipant.UserId} already participates in trip with Id {request.TripParticipant.TripId}.");
}
await _tripParticipantRepository.AddAsync(request.TripParticipant);
}
public Task <Trip> Handle(GetTripDetailsQuery request, CancellationToken cancellationToken)
{
return(_tripsRepository.GetDetailsByIdAsync(request.TripId));
}
