public async Task <IActionResult> CreateAsync([Bind("Name,ArtistName,Length,ReleaseDate,TrackNumber,Publisher,AlbumId")] Song song)
        {
            ApplicationUser currentUser = await _userManager.FindByNameAsync(User.Identity.Name);

            if (ModelState.IsValid)
            {
                song.ArtistId = currentUser.Id;
                song.Artist   = currentUser;

                _context.Add(song);
                await _context.SaveChangesAsync();

                return(RedirectToAction("Admin"));
            }

            ViewData["AlbumId"] = (IEnumerable <SelectListItem>)BuildUserAlbumsDropDownList(currentUser);
            return(View(song));
        }
        public async Task <IActionResult> Create([Bind("Publisher,Name,ArtistName,ReleaseDate")] Album album)
        {
            ApplicationUser currentUser = await _userManager.FindByNameAsync(User.Identity.Name);

            if (currentUser == null)
            {
                throw new Exception("Cannot find user.");
            }

            album.ArtistId = currentUser.Id;
            album.Artist   = currentUser;

            if (ModelState.IsValid)
            {
                _context.Add(album);
                await _context.SaveChangesAsync();

                return(RedirectToAction(nameof(Index)));
            }

            //ViewData["ArtistId"] = new SelectList(_context.Users, "Id", "Id", album.ArtistId);
            return(View(album));
        }