public IActionResult Uredi(int id)
        {
            MyContext  db    = new MyContext();
            Let        l     = db.Let.Where(x => x.LetID == id).Include(x => x.Grad).Include(x => x.Klasa).FirstOrDefault();
            LetUrediVM model = new LetUrediVM
            {
                id    = id,
                klase = db.Klasa.Select(x => new SelectListItem
                {
                    Value = x.KlasaID.ToString(),
                    Text  = x.Naziv
                }).ToList(),
                gradovi = db.Grad.Select(x => new SelectListItem
                {
                    Value = x.GradID.ToString(),
                    Text  = x.Naziv
                }).ToList(),
                VrijemePolaska = l.VrijemePolaska,
                Cijena         = l.Cijena
            };

            db.SaveChanges();
            db.Dispose();
            return(View(model));
        }
        public IActionResult UrediSnimi(LetUrediVM model)
        {
            MyContext db = new MyContext();
            Let       l  = db.Let.Where(x => x.LetID == model.id).Include(x => x.Grad).Include(x => x.Klasa).FirstOrDefault();

            l.LetID   = model.id;
            l.KlasaID = model.klasaid;
            l.GradID  = model.gradid;
            List <SelectListItem> klase = db.Klasa.Select(x => new SelectListItem
            {
                Value = x.KlasaID.ToString(),
                Text  = x.Naziv
            }).ToList();
            List <SelectListItem> gradovi = db.Grad.Select(x => new SelectListItem
            {
                Value = x.GradID.ToString(),
                Text  = x.Naziv
            }).ToList();

            l.VrijemePolaska = model.VrijemePolaska;
            l.Cijena         = model.Cijena;
            db.SaveChanges();
            db.Dispose();
            return(RedirectToAction("Prikazi"));
        }