public async Task <IActionResult> Edit(int id, ConcertViewModel model, int?page = null)
{
ViewBag.Page = page;
if (id != model.Id)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
ConcertModel concert = await _context.Concerts.SingleOrDefaultAsync(c => c.Id == id);
if (concert.Type == model.Type)
{
if (model.Type == nameof(ClassicalConcertModel))
{
ClassicalConcertModel currentClassic = await _context.ClassicalConcerts.SingleOrDefaultAsync(c => c.Id == id);
currentClassic.Update(model);
_context.Update(currentClassic);
}
else if (model.Type == nameof(OpenAirModel))
{
OpenAirModel currentOpenAir = await _context.OpenAirs.SingleOrDefaultAsync(c => c.Id == id);
currentOpenAir.Update(model);
_context.Update(currentOpenAir);
}
else if (model.Type == nameof(PartyModel))
{
PartyModel currentParty = await _context.Parties.SingleOrDefaultAsync(c => c.Id == id);
currentParty.Update(model);
_context.Update(currentParty);
}
}
else
{
if (model.Type == nameof(ClassicalConcertModel))
{
ClassicalConcertModel newConcert = new ClassicalConcertModel(concert);
newConcert.Update(model);
_context.Concerts.Add(newConcert);
}
else if (model.Type == nameof(OpenAirModel))
{
OpenAirModel newConcert = new OpenAirModel(concert);
newConcert.Update(model);
_context.Concerts.Add(newConcert);
}
else if (model.Type == nameof(PartyModel))
{
PartyModel newConcert = new PartyModel(concert);
newConcert.Update(model);
_context.Concerts.Add(newConcert);
}
_context.Concerts.Remove(concert);
}
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!ConcertExists(model.Id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
return(View(model));
}
