public static bool TakeBackUpvoteProblem(ForumPost forumPost)
{
error.Clear();
if (!CurrentUser.isLoggedIn)
{
return(error.SetErrorAndReturnFalse(ErrorCode.INVALID_SESSION));
}
if (!DataCrusher.TakeBackUpvoteForForum(forumPost))
{
return(error.SetErrorAndReturnFalse(ErrorCode.NOT_FOUND));
}
//previous votes
int votes = DataFetcher.GetForumPostVotes(forumPost);
votes -= 1;
if (!DataPusher.SetForumPostVotes(forumPost, votes))
{
return(error.SetErrorAndReturnFalse(ErrorCode.PUSH_ERROR));
}
return(true);
}
public static bool UpvoteProblem(ForumPost forumPost)
{
error.Clear();
if (CurrentUser.isLoggedIn == false)
{
return(error.SetErrorAndReturnFalse(ErrorCode.INVALID_SESSION));
}
bool upVoted = false; //so far
try
{
upVoted = UserDataPusher.UpvoteForumProblem(forumPost); //exception root
if (!upVoted)
{
return(error.SetErrorAndReturnFalse(ErrorCode.PUSH_ERROR | ErrorCode.UNKNOWN));
}
//upvoted
//previous votes number
int votes = DataFetcher.GetForumPostVotes(forumPost);
//set votes to previous+1
votes += 1;
if (!DataPusher.SetForumPostVotes(forumPost, votes))
{
return(error.SetErrorAndReturnFalse(ErrorCode.PUSH_ERROR));
}
return(true);
}
catch (MySql.Data.MySqlClient.MySqlException myEx)
{ //^exception handling
if (myEx.Number == (uint)MySql.Data.MySqlClient.MySqlErrorCode.DuplicateKeyEntry)
{
throw new exceptions.DoneBefore();
}
else
{
throw myEx;
}
}
}