public IEnumerable <RealTimeStatistics> GetRealTimeStatistics(RealTimeStatisticsViewModel rtsVM)
{
IEnumerable <Answer> answers =
(from a in _context.Answers.ToList()
join q in rtsVM.Questions on a.QuestionId equals q.Id
select a).ToList();
IEnumerable <RealtimeRespons> responses =
(from r in _context.RealtimeResponses.ToList()
where r.ModuleHistoryId == rtsVM.ModuleHistory.Id
select r).ToList();
ICollection <RealTimeStatistics> realTimeStatistics = new List <RealTimeStatistics>();
foreach (var group in rtsVM.Groups)
{
foreach (var question in rtsVM.Questions)
{
realTimeStatistics.Add(new RealTimeStatistics
{
GroupId = group.Id,
QuestionId = question.Id,
TotalAnswers = !responses.Any(r => r.QuestionId == question.Id && r.GroupId == group.Id) ? 0 : responses.Count(r => r.QuestionId == question.Id && r.GroupId == group.Id),
CorrectAnswers = !responses.Any(r => r.QuestionId == question.Id && r.GroupId == group.Id && answers.Where(a => a.Id == r.AnswerId).Select(a => a.IsCorrect).SingleOrDefault() == true) ? 0
: responses.Count(r => r.QuestionId == question.Id && r.GroupId == group.Id && answers.Where(a => a.Id == r.AnswerId).Select(a => a.IsCorrect).SingleOrDefault() == true)
});
}
}
return(realTimeStatistics);
}
public async Task QueryRealTimeStats(RealTimeStatisticsViewModel realTimeStatisticsVM, bool immediateCheck)
{
if (!_locked)
{
_locked = true;
if (!immediateCheck)
{
await Task.Delay(5000);
}
IEnumerable <RealTimeStatistics> realTimeStatistics =
_quizManager.GetRealTimeStatistics(realTimeStatisticsVM).ToList();
Clients.Caller.RecieveRealTimeStatistics(realTimeStatistics);
_locked = false;
}
}
