public ActionResult Create(CreateAndListGroupModel model)
{
var db = new StudentAbsenceEntities();
if (!db.IsGroupUnique(model.NewGroup.Name))
{
ModelState.AddModelError(string.Empty, "Группа с таким номером уже существует!");
}
if (ModelState.IsValid)
{
db.Group.Add(model.NewGroup);
db.SaveChanges();
return(RedirectToAction("Index"));
}
var list = db.Group.Select(c => c).OrderBy(c => c.Name).ToList();
ViewBag.Faculties = new SelectList(db.Faculty, "Id", "Name");
return(View("Index", new CreateAndListGroupModel()
{
Groups = list, NewGroup = model.NewGroup
}));
}