/// <summary>
/// Save answer vote
/// </summary>
/// <param name="voteVote"></param>
/// <returns>Id of the answer whos description was voted.</returns>
public DataOperationResult VoteAnswer(AnswerVoteDto answerVote)
{
if (answerVote == null)
{
throw new ServicesException("Null parameter VoteService.VoteAnswer(answerVote)");
}
if (answerVote.AnswerId <= 0)
{
throw new ServicesException("Unexpected AnswerId in VoteService.VoteAnswer(answerVote)");
}
if (answerVote.UserId == null)
{
throw new ServicesException("Unexpected UserId in VoteService.VoteAnswer(answerVote)");
}
var result = new DataOperationResult();
// Find if vote is already there.
var existingVote = _answerVoteRepository.Queryable()
.FirstOrDefault(x => x.UserId == answerVote.UserId && x.AnswerId == answerVote.AnswerId);
// Do not re-add existing vote.
if (existingVote != null)
{
result.IntId = existingVote.AnswerId;
return(result);
}
// Add new answer vote
var answerVoteObject = new AnswerVote();
answerVoteObject.FromDto(answerVote);
_answerVoteRepository.Insert(answerVoteObject);
var task = _answerVoteRepository.SaveChangesAsync();
task.Wait();
// Add to cache.
var cachedData = GetVotesCachedData();
cachedData.Insert(answerVoteObject);
// Add to user cache if there is a user
if (answerVoteObject.UserId != null)
{
var userCachedData = GetUserVotesCachedData();
userCachedData.Insert(new AnswerVoteUserMask(answerVoteObject));
}
result.IntId = answerVoteObject.AnswerId;
result.IsNew = true;
return(result);
}
/// <summary>
/// Save answer description flag
/// </summary>
/// <param name="answerFlag"></param>
/// <returns></returns>
/// <remarks>Flag is always considered new</remarks>
public DataOperationResult FlagAnswerDescription(AnswerDescriptionFlagDto answerDescriptionFlag)
{
if (answerDescriptionFlag == null)
{
throw new ServicesException("Null parameter FlagService.FlagAnswerDescription(answerDescriptionFlag)");
}
if (answerDescriptionFlag.AnswerDescriptionId <= 0)
{
throw new ServicesException("Unexpected AnswerDescriptionId in FlagService.FlagAnswerDescription(answerDescriptionFlag)");
}
if (answerDescriptionFlag.UserId == null)
{
throw new ServicesException("Unexpected UserId in FlagService.FlagAnswerDescription(answerDescriptionFlag)");
}
var answerDescriptionFlagObject = new AnswerDescriptionFlag();
answerDescriptionFlagObject.FromDto(answerDescriptionFlag);
_answerDescriptionFlagRepository.Insert(answerDescriptionFlagObject);
var task = _answerDescriptionFlagRepository.SaveChangesAsync();
task.Wait();
// Add to user cache if there is a user
if (answerDescriptionFlagObject.UserId != null)
{
var userCachedData = GetUserDescriptionFlagsCachedData();
userCachedData.Insert(answerDescriptionFlagObject);
}
// Find the id of the answer whos description was flagged
// We need to give it caller so that caller can redirect to answer page
var answerDescriptionDto = _answerDescriptionService
.FindByAnswerDescriptionId(answerDescriptionFlag.AnswerDescriptionId);
var result = new DataOperationResult();
result.IntId = answerDescriptionDto.AnswerId;
result.IsNew = true;
return(result);
}
