public IActionResult Results(string searchQuery)
        {
            var threads = _threadService.GetFilteredThreads(searchQuery);

            var zeroResults = (!string.IsNullOrEmpty(searchQuery) && !threads.Any());

            var threadListings = threads.Select(thread => new ThreadListingModel
            {
                Id             = thread.Id,
                Title          = thread.Title,
                CreatedAt      = thread.CreatedAt.ToString(),
                ModifiedAt     = thread.ModifiedAt.ToString(),
                AuthorId       = thread.User.Id,
                AuthorName     = thread.User.UserName,
                AuthorImageUrl = thread.User.ProfileImageUrl,
                AuthorRating   = thread.User.Rating,
                PostCount      = thread.Posts.Count(),
                Forum          = BuildForumListing(thread)
            });

            var model = new SearchResultModel
            {
                Threads            = threadListings,
                SearchQuery        = searchQuery,
                EmptySerachResults = zeroResults
            };

            return(View(model));
        }
        // GET : Forum
        /// <summary>
        /// Gets a Forum by its ID with all of its Threads for listing.
        /// If the "search query" parameter is NOT empty, filter & collect Threads accordingly.
        /// </summary>
        /// <param name="id">Int: forum ID.</param>
        /// <param name="searchQuery">String: user input (text to look for).</param>
        /// <returns>Object: a Forum's data, its Thread collection, and some of their data.</returns>
        public IActionResult Forum(int id, string searchQuery)
        {
            var forum   = _forumEntityService.GetById(id);
            var threads = new List <ThreadEntity>();

            //if (!string.IsNullOrEmpty(searchQuery))
            //{
            //	threads = _threadEntityService.GetFilteredThreads(id, searchQuery).ToList();
            //}
            //threads = forum.Threads.ToList();
            threads = _threadEntityService.GetFilteredThreads(forum, searchQuery).ToList();

            var threadListings = threads.Select(thread => new ThreadListingModel
            {
                Id             = thread.Id,     // int
                Title          = thread.Title,
                Status         = thread.Status,
                CreatedAt      = thread.CreatedAt.ToString(),
                ModifiedAt     = thread.ModifiedAt.ToString(),
                PostCount      = thread.Posts.Count(),
                AuthorId       = thread.User.Id,           // ApplicationUser : IdentityUser<string>
                AuthorName     = thread.User.UserName,
                AuthorImageUrl = thread.User.ProfileImageUrl,
                AuthorRating   = thread.User.Rating,
                Forum          = BuildForumListing(thread)
            });

            var model = new ForumThreadsModel
            {
                Threads = threadListings,
                Forum   = BuildForumListing(forum)
            };

            return(View(model));
        }