public KorisnikDTO GetKorisnikByKorisnickoIme(string korisnickoIme)
        {
            try
            {
                using (BHaoDataContext context = new BHaoDataContext())
                {
                    KorisnikRepository repo = new KorisnikRepository(context);

                    return(repo.GetByKorisnickoIme(korisnickoIme));
                }
            }
            catch (Exception ex)
            {
                throw new FaultException(ex.Message);
            }
        }