public IActionResult RankMovies(PrivateGroupRankMoviesViewModel rankMoviesViewModel)
        {
            var userId       = this.User.FindFirstValue(ClaimTypes.NameIdentifier);
            var movieWatcher = _context.MovieWatchers.Where(m => m.IdentityUserId == userId).FirstOrDefault();
            var privateGroup = _context.PrivateGroups.Where(m => m.Name == rankMoviesViewModel.GroupName).FirstOrDefault();

            MovieRanking movieRanking = new MovieRanking();

            movieRanking.MovieRating1 = rankMoviesViewModel.MovieRating1;
            movieRanking.MovieRating2 = rankMoviesViewModel.MovieRating2;
            movieRanking.MovieRating3 = rankMoviesViewModel.MovieRating3;
            movieRanking.MovieRating4 = rankMoviesViewModel.MovieRating4;
            movieRanking.MovieRating5 = rankMoviesViewModel.MovieRating5;
            privateGroup.MovieRanking = movieRanking;
            _context.PrivateGroups.Update(privateGroup);
            _context.SaveChanges();
            movieWatcher.MyPrivateGroup = privateGroup;

            _context.MovieWatchers.Update(movieWatcher);
            _context.SaveChanges();

            //int numberOfPeopleInGroup = rankMoviesViewModel.MovieWatchers.Count;
            //int totalRating = rankMoviesViewModel.MovieRating1;
            //int averageRatingOfMovie = totalRating / numberOfPeopleInGroup;

            //MovieRanking movieRanking = new MovieRanking();
            //movieRanking.MovieRating1 = averageRatingOfMovie;

            //var privateGroup = _context.PrivateGroups.FirstOrDefault(g => g.Id == rankMoviesViewModel.GroupId);
            //< input type = "hidden" asp -for= "GroupId" value = "@Model.PrivateGroup.Id" />
            return(RedirectToAction("VoteOnMovies"));
        }
        public IActionResult RankMovies()
        {
            PrivateGroupRankMoviesViewModel rankMoviesViewModel = new PrivateGroupRankMoviesViewModel();

            //foreach (var person in movieWatchers)
            //{

            //}
            return(View(rankMoviesViewModel));
        }