public IActionResult UrediIspit(UrediIspitVM model)
        {
            var ispit = _context.MaturskiIspit
                        .Find(model.IspitId)
                        .Napomena = model.Napomena;

            _context.SaveChanges();
            return(RedirectToAction(nameof(UrediIspit), new { ispitId = model.IspitId }));
        }
        public IActionResult UrediIspit(int ispitId)
        {
            var ispit = _context.MaturskiIspit
                        .Include(i => i.Predmet)
                        .Where(i => i.Id == ispitId)
                        .FirstOrDefault();
            var model = new UrediIspitVM
            {
                Datum    = ispit.Datum.ToString("dd.MM.yyyy"),
                IspitId  = ispit.Id,
                Napomena = ispit.Napomena,
                Predmet  = ispit.Predmet.Naziv
            };

            return(View(model));
        }