public Result Handle(RenameRoundInTournament command) { Tournament tournament = _tournamentRepository.GetTournamentById(command.TournamentId); if (tournament == null) { return(Result.Failure($"Could not rename round ({ command.RoundId }) to { command.NewRoundName } in tournament ({ command.TournamentId }). Tournament not found.")); } RoundBase round = tournament.GetRoundById(command.RoundId); if (round == null) { return(Result.Failure($"Could not rename round ({ command.RoundId }) to { command.NewRoundName } in tournament ({ command.TournamentId }). Round not found.")); } bool renameSuccessful = _tournamentRepository.RenameRoundInTournament(round, command.NewRoundName); if (!renameSuccessful) { return(Result.Failure($"Could not rename round ({ command.RoundId }) to { command.NewRoundName } in tournament ({ command.TournamentId }).")); } _tournamentRepository.Save(); return(Result.Success()); }