public async Task <RedirectToActionResult> FormSubmit(DisciplineSelectionViewModel model)
{
IList <SelectDisciplineViewModel> newSelections = model.Disciplines;
Student student = model.Student;
IEnumerable <int> selectedDiscs = _context.StudDisc.Where(row => row.StudentId == student.Id)
.Select(row => row.DisciplineId);
foreach (var disc in newSelections)
{
if (disc.Selected && !selectedDiscs.Contains(disc.Id))
{
_context.StudDisc.Add(new StudDisc {
DisciplineId = disc.Id, StudentId = student.Id
});
}
else if (!disc.Selected && selectedDiscs.Contains(disc.Id))
{
_context.StudDisc.Remove(new StudDisc {
DisciplineId = disc.Id, StudentId = student.Id
});
}
}
await _context.SaveChangesAsync(); // redirect to Home Page
//return RedirectToAction("Index", new RouteValueDictionary(
// new { controller = "Home", action = "Index" }));
// renew page
return(RedirectToAction("Index", new { studentId = student.Id }));
}
// GET: List of disciplines with checkboxes
public IActionResult Index(int studentId)
{
IEnumerable <int> selectedByUserDisciplines = _context.StudDisc.Where(row => row.StudentId == studentId)
.Select(row => row.DisciplineId);
var model = new DisciplineSelectionViewModel();
foreach (var disc in _context.Discipline)
{
var selectDiscipline = new SelectDisciplineViewModel(disc.Id, disc.Title);
if (selectedByUserDisciplines.Contains(disc.Id))
{
selectDiscipline.Selected = true;
}
model.Disciplines.Add(selectDiscipline);
}
model.Disciplines = model.Disciplines.OrderByDescending(disc => disc.Selected)
.ThenBy(disc => disc.Title)
.ToList();
model.Student = _context.Student.SingleOrDefault(stud => stud.Id == studentId);
return(View(model));
}
