public void DeleteProdavac(radnik radnik)
        {
            var prodavac = get.GetProdavacByJmbg(radnik.jmbg);

            using (var db = new AutobuskaStanicaEntities())
            {
                db.Entry(prodavac).State = System.Data.Entity.EntityState.Deleted;

                db.Entry(radnik).State = System.Data.Entity.EntityState.Deleted;

                db.SaveChanges();
            }
        }
        public void UpdateProdavac(string jmbg, int brojSaltera)
        {
            var prodavac = get.GetProdavacByJmbg(jmbg);

            using (var db = new AutobuskaStanicaEntities())
            {
                if (prodavac.brojsaltera != brojSaltera)
                {
                    prodavac.brojsaltera = brojSaltera;
                }

                db.Entry(prodavac).State = System.Data.Entity.EntityState.Modified;
                db.SaveChanges();
            }
        }