public async Task <Vote> VoteOnComment(VoteOnComment data, User user)
{
Vote?oldVote = await repo.FindByUserAndComment(user.Username, data.CommentId);
if (oldVote != null)
{
await repo.Delete(oldVote);
}
Vote newVote = factory.CreateForComment(user, data.CommentId, data.VoteDirection);
await repo.Add(newVote);
await bus.Dispatch(new VoteOnCommentEvent(data.CommentId, newVote, oldVote));
return(newVote);
}
protected override async Task <VoteView> HandleInput(VoteOnPostParams input)
{
using (var connection = database.GetConnection()) {
IVoteRepo voteRepo = database.GetRepo <IVoteRepo>(connection);
IPostRepo postRepo = database.GetRepo <IPostRepo>(connection);
IUserRepo userRepo = database.GetRepo <IUserRepo>(connection);
using (var transaction = connection.BeginTransaction()) {
Post post = (await postRepo.FindById(input.PostId)) !;
Vote?oldVote = await voteRepo.FindByUserAndPost(input.User.Username, input.PostId);
// Wipe out the old one...
if (oldVote != null)
{
post.RemoveVote(oldVote.Direction);
await voteRepo.Delete(oldVote);
if (post.Type != PostType.Text)
{
post.User.PostKarma -= (int)oldVote.Direction;
}
}
// Create the new vote, and update the comment's karma cache.
Vote newVote = new Vote()
{
User = input.User,
ResourceType = VoteResourceType.Post,
ResourceId = input.PostId,
Direction = input.Vote
};
post.AddVote(newVote.Direction);
if (post.Type != PostType.Text)
{
post.User.PostKarma += (int)newVote.Direction;
}
await voteRepo.Add(newVote);
await postRepo.Update(post);
await userRepo.Update(post.User);
transaction.Commit();
return(voteViewMapper.Map(newVote));
}
}
}
