public ActionResult Create(PostViewModel postViewModel) { try { if (ModelState.IsValid) { var folderName = "upload/"; foreach (IFormFile file in postViewModel.Photos) { var savePath = Path.Combine(_enviroment.WebRootPath, folderName, file.FileName); using (var photoFile = new FileStream(savePath, FileMode.Create)) { file.CopyTo(photoFile); } } //folderName+"/"+postViewModel.Photos.FileName var newTags = postViewModel.CommaSeparatedTags.Split(","); List <PostTag> listTags = new List <PostTag>(); foreach (var s in newTags) { if (_context.Tags.Where(x => x.Name == s).Any()) { listTags.Add(new PostTag { Tag = _context.Tags.Where(x => x.Name == s).First() }); } else { listTags.Add(new PostTag { Tag = new Tag { Name = s } }); } } // Select(x =>new PostTag{x.Tag = _context.Tags.Where} ) _context.AddPost(new Post { Id = Guid.NewGuid(), Title = postViewModel.Title, PhotosPath = postViewModel.Photos.Select(p => folderName + "/" + p.FileName), PostTags = listTags //postViewModel.CommaSeparatedTags //.Split(",") //.Select(x => new PostTag { Tag =new Tag { Name = x } }) //.ToList() //PostTags.Tags = postViewModel.CommaSeparatedTags //.Split(",") //.Select(x => new Tag { Name =x}) //.ToList() }); return(RedirectToAction(nameof(Index))); } return(View(postViewModel)); } catch { return(View()); } }