public async Task <ActionResult> Edit([Bind(Exclude = "CurrentPieces")] EditSquareSetViewModel squareSetViewModel)
        {
            if (squareSetViewModel.Id == 0)
            {
                return(View(squareSetViewModel));
            }

            SquareSet squareSet = _db.SquareSets.First(o => o.Id == squareSetViewModel.Id);

            squareSetViewModel.CurrentPieces = squareSet.Pieces;

            if (ModelState.IsValid)
            {
                squareSet.Name = squareSetViewModel.Name;
                UploadImages(squareSetViewModel);

                await _db.SaveChangesAsync();

                return(RedirectToAction("Details", new { id = squareSet.Id }));
            }

            return(View(squareSetViewModel));
        }
        // GET: SquareSets/Edit/5
        public async Task <ActionResult> Edit(int?id)
        {
            if (id == null)
            {
                return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
            }

            SquareSet squareSet = await _db.SquareSets.FindAsync(id);

            if (squareSet == null)
            {
                return(HttpNotFound());
            }

            var squareSetViewModel = new EditSquareSetViewModel
            {
                Id            = squareSet.Id,
                Name          = squareSet.Name,
                CurrentPieces = squareSet.Pieces
            };

            return(View(squareSetViewModel));
        }