// GET: Comments/Edit/5
public async Task <IActionResult> Edit(int?id)
{
if (id == null)
{
return(NotFound());
}
var comment = await _context.Comments.FindAsync(id);
if (comment == null)
{
return(NotFound());
}
var user = await this._userManager.GetUserAsync(User);
ViewModel = new CommentTagFriendsViewModel();
ViewModel.CurrentUser = user;
ViewModel.Comment = comment;
ViewModel.Tagged = GetTaggedFriends(comment.Id, user.Id);
/*If this method is invoked before GetTaggedFriends,
* there will add all of the current user`s friends.
* Let`s get that user x is already tagged from the creation of the comment.
* It does not make sense the current user to be allowed to tag user x twice.*/
ViewModel.UserFriends = GetUserFriends(user);
return(View(ViewModel));
}
public async Task <IActionResult> Edit([FromForm] CommentTagFriendsViewModel viewModel)
{
if (ModelState.IsValid)
{
try
{
var user = await this._userManager.GetUserAsync(User);
ViewModel.CurrentUser = user;
var comment = await this._context.Comments
.Include(i => i.TaggedUsers)
.FirstOrDefaultAsync(i => i.Id == viewModel.Comment.Id);
var post = await this._context.Posts
.FirstOrDefaultAsync(i => i.PostId == _postId);
comment.AuthorId = user.Id;
comment.Author = user;
comment.CommentedPostId = post.PostId;
comment.CommentedPost = post;
comment.Content = viewModel.Comment.Content;
//Local TagFriend entities
var tagFriendEntities = TagFriendEntities(comment);
//Connected TagFriend entities (In the db)
var commentTagFriendEntities = comment.TaggedUsers;
//If there is a mismatch between any record in the Local collection will be deleted from the Connected collection
RemoveTaggedFriendRecords(commentTagFriendEntities, tagFriendEntities);
//If there is a mismatch between any record in the Connected collection will be added from the Local collection
AddLocalTaggedFriends(commentTagFriendEntities, tagFriendEntities);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!CommentExists(viewModel.Comment.Id))
{
return(NotFound());
}
else
{
throw;
}
}
ViewModel = new CommentTagFriendsViewModel();
return(RedirectToAction(nameof(Index)));
}
return(View(viewModel));
}
// GET: Comments/Create
public async Task <IActionResult> Create(int?id)
{
if (id != null)
{
_postId = (int)id;
}
var user = await this._userManager.GetUserAsync(User);
ViewModel = new CommentTagFriendsViewModel()
{
CurrentUser = user,
UserFriends = GetUserFriends(user)
};
return(View(ViewModel));
}
public async Task <IActionResult> Create([FromForm] CommentTagFriendsViewModel viewModel)
{
if (ModelState.IsValid)
{
//Get current user
var user = await this._userManager.GetUserAsync(User);
ViewModel.CurrentUser = user;
var comment = new Comment()
{
Author = user,
AuthorId = user.Id,
DatePosted = DateTime.Now,
Content = viewModel.Comment.Content,
TaggedUsers = TagFriendEntities()
};
//Get the post
var post = await this._context.Posts.FirstOrDefaultAsync(i => i.PostId == _postId);
if (post == null)
{
return(NotFound());
}
comment.CommentedPost = post;
comment.CommentedPostId = post.PostId;
this._context.Comments.Add(comment);
await _context.SaveChangesAsync();
ViewModel = new CommentTagFriendsViewModel();
return(RedirectToAction(nameof(Index)));
}
return(View(viewModel));
}
