public TournamentManagerErrorCodes CreateTournament(TournamentDTO tournamentDTO)
        {
            if (tournamentDTO.BuyIn > 0 && (tournamentDTO.BuyIn * tournamentDTO.Size) >= tournamentDTO.Prize)
            {
                return(TournamentManagerErrorCodes.BuyInMoreOrEqualToPrize);
            }
            if (tournamentDTO.OrganisationID == "null" && tournamentDTO.UserID == "null")
            {
                return(TournamentManagerErrorCodes.NoHost);
            }
            tournamentDTO.ID = idGenerator.GenerateID(12);
            if (tournamentDTO.OrganisationID == "null")
            {
                tournamentDTO.OrganisationID = null;

                int extraCost = tournamentDTO.Prize - (tournamentDTO.BuyIn * tournamentDTO.Size);
                if (userDB.GetCurrency(tournamentDTO.UserID) < extraCost)
                {
                    return(TournamentManagerErrorCodes.NotEnoughMoney);
                }
            }
            else
            {
                tournamentDTO.UserID = null;
            }
            tournamentDB.CreateTournament(tournamentDTO);
            return(TournamentManagerErrorCodes.NoError);
        }