public override async Task EnsureUniqueness(Game entity)
{
_ = entity ?? throw new ArgumentNullException(nameof(entity));
var specification = new Game.IsUniqueSpecification(entity);
var existingGames = await _context.Set <Game>().AnyAsync(specification.SatisfiedBy());
if (existingGames)
{
throw new DomainException(Game.NAME_MUST_UNIQUE);
}
}
private async Task <Unit> HandleAsync(CreateGame request, CancellationToken cancellationToken)
{
var game = Game.Create(request.Name);
var specification = new Game.IsUniqueSpecification(game, request.Name).SatisfiedBy();
var anyGame = await _gamesRepository.AnyAsync(specification, cancellationToken);
if (anyGame)
{
throw new ApplicationException(Messages.NameMustUnique);
}
await _unitOfWork.Save(default);
public async Task <Game> Execute(string name, CancellationToken cancellationToken)
{
var game = Game.Create(name);
var specification = new Game.IsUniqueSpecification(game, name).SatisfiedBy();
bool anyGame = await _gamesRepository.AnyAsync(specification, cancellationToken);
if (anyGame)
{
throw new DomainException(Game.NAME_MUST_UNIQUE);
}
return(game);
}
public async Task Execute(int gameId, string name, CancellationToken cancellationToken)
{
var game = await _gamesRepository.Find(gameId, cancellationToken);
if (game is null)
{
throw new DomainException(Game.NOT_FOUND);
}
game.SetName(name);
var specification = new Game.IsUniqueSpecification(game, name).SatisfiedBy();
var anyGame = await _gamesRepository.AnyAsync(specification, cancellationToken);
if (anyGame)
{
throw new DomainException(Game.NAME_MUST_UNIQUE);
}
}
private async Task <Unit> HandleAsync(UpdateGame request, CancellationToken cancellationToken)
{
var game = await _gamesRepository.Find(request.Id, cancellationToken);
if (game is null)
{
throw new EntityNotFoundException(typeof(Game), request.Id);
}
var specification = new Game.IsUniqueSpecification(game, request.Name).SatisfiedBy();
var anyGame = await _gamesRepository.AnyAsync(specification, cancellationToken);
if (anyGame)
{
throw new ApplicationException(Messages.NameMustUnique);
}
game.SetName(request.Name);
await _unitOfWork.Save(default);