public ActionResult Lozinka(ProfilLozinkaVM model)
        {
            if (model.StaraLozinka != model.StariPassword)
            {
                ModelState.AddModelError("StaraLozinka", "Lozinka nije ispravna!");
            }


            if (!ModelState.IsValid)
            {
                return(View(model));
            }


            Korisnik k = db.KorisnikDbSet.Find(model.Id);

            if (k == null)
            {
                return(new HttpStatusCodeResult(HttpStatusCode.NotFound));
            }

            k.Password = model.NovaLozinka;
            db.SaveChanges();

            // old pass = new pass
            TempData["Message"] = "Uspješno ste promjenili lozinku!";
            TempData["code"]    = "info";

            return(View(model));
        }
        public ActionResult Lozinka(int id)
        {
            Korisnik k = db.KorisnikDbSet.Find(id);

            if (k == null)
            {
                return(new HttpStatusCodeResult(HttpStatusCode.NotFound));
            }

            ProfilLozinkaVM model = new ProfilLozinkaVM();

            model.ImePrezime    = k.Username;
            model.Id            = k.Id;
            model.StariPassword = k.Password;


            return(View(model));
        }