/// <summary>
/// Create a new reply in an existing thread.
/// Adding a reply to an existing thread will notify all subscribed and connected clients.
/// </summary>
/// <param name="parentId">Id of the parent comment.</param>
/// <param name="replyText">Text of the reply.</param>
public void NewReply(int parentId, string replyText)
{
User currentUser = db.Users.Find(CodeFirstSecurity.GetUserId(Context.User.Identity.Name));
Comment comment = new Comment(replyText, currentUser);
Comment parentComment = db.Comments.Include("Comments").First(pc => pc.CommentId == parentId);
if (parentComment.SubjectId != null)
{
comment.SubjectId = parentComment.SubjectId;
}
else
{
comment.SubjectId = parentComment.CommentId;
}
comment.ParentCommentId = parentComment.CommentId;
Comment thread = db.Comments.Find(comment.SubjectId);
thread.LastUpdatedTime = DateTime.UtcNow;
parentComment.Comments.Add(comment);
// For all subscribed users other than the current user, mark this comment as unread.
List <Guid> subscribers = new List <Guid>();
foreach (Subscription subscriber in db.Subscriptions.Include("User").Where(x => x.Subject.CommentId == comment.SubjectId))
{
subscribers.Add(subscriber.User.UserId);
if (subscriber.User.UserId != currentUser.UserId)
{
db.UnreadItems.Add(new UnreadItem {
User = subscriber.User, Comment = comment
});
}
}
db.SaveChanges();
Message sendMessage = new Message()
{
text = Palaver2.Helpers.CustomHtmlHelpers.BuildComments(comment, null),
parentId = parentId,
commentId = comment.CommentId,
userid = currentUser.UserId.ToString(),
threadId = comment.SubjectId,
authorName = comment.User.Username
};
// Loop through the connections and if they're subscribed to this
// thread then update them.
foreach (String connectionId in userIdsByConnection.Keys)
{
if (subscribers.Contains(userIdsByConnection[connectionId]))
{
Clients.Client(connectionId).addReply(sendMessage);
}
}
}
/// <summary>
/// Unsubscribe the current user from the specified thread.
/// </summary>
/// <param name="threadId"></param>
public void Unsubscribe(int threadId)
{
User currentUser = db.Users.Find(CodeFirstSecurity.GetUserId(Context.User.Identity.Name));
Subscription sub = db.Subscriptions.Where(x => x.Subject.CommentId == threadId && x.User.UserId == currentUser.UserId).Single();
db.Subscriptions.Remove(sub);
db.SaveChanges();
}
public ActionResult GetThreads()
{
Guid userId = CodeFirstSecurity.GetUserId(HttpContext.User.Identity.Name);
var comments = from c in db.Comments
join s in db.Subscriptions on c.CommentId equals s.Subject.CommentId
where !c.ParentCommentId.HasValue && s.User.UserId == userId
orderby c.LastUpdatedTime descending
select c;
return(Content(Helpers.CustomHtmlHelpers.BuildThreads(comments)));
}
public ActionResult GetThread(string threadId)
{
int intThreadId;
Guid userId = CodeFirstSecurity.GetUserId(HttpContext.User.Identity.Name);
var comments = from c in db.Comments
join s in db.Subscriptions on c.CommentId equals s.Subject.CommentId
where !c.ParentCommentId.HasValue && s.User.UserId == userId
orderby c.LastUpdatedTime descending
select c;
ViewBag.Comments = comments;
if (threadId != null && int.TryParse(threadId, out intThreadId))
{
ViewBag.ThreadId = intThreadId;
}
return(View("Index"));
}
/// <summary>
/// Create a new thread.
/// Creating a thread will subscribe all users to it and notify any connected clients.
/// </summary>
/// <param name="threadSubject">Text of the thread subject.</param>
public void NewThread(string threadSubject)
{
User currentUser = db.Users.Find(CodeFirstSecurity.GetUserId(Context.User.Identity.Name));
Comment comment = new Comment(threadSubject, currentUser);
db.Comments.Add(comment);
db.SaveChanges();
// For new threads, subscribe everyone and add the first entry to everyone's
// unread list.
foreach (User uu in db.Users)
{
db.Subscriptions.Add(new Subscription {
User = uu, Subject = comment
});
if (uu.UserId != currentUser.UserId)
{
db.UnreadItems.Add(new UnreadItem {
User = uu, Comment = comment
});
}
}
comment.SubjectId = comment.CommentId;
db.SaveChanges();
string html = Palaver2.Helpers.CustomHtmlHelpers.BuildThread(comment, null);
Message sendMessage = new Message()
{
text = html,
commentId = comment.CommentId,
userid = currentUser.UserId.ToString(),
threadId = comment.SubjectId,
authorName = comment.User.Username
};
Clients.All.addThread(sendMessage);
}
public override Task OnReconnected()
{
userIdsByConnection.Add(Context.ConnectionId, db.Users.Find(CodeFirstSecurity.GetUserId(Context.User.Identity.Name)).UserId);
System.Diagnostics.Debug.WriteLine("Reonnected ConnectionId: " + Context.ConnectionId);
return(base.OnReconnected());
}
