public override Task OnDisconnected(bool stopCalled)
{
if (Context.User.IsInRole(RoleName.Student))
{
int studentId = AccountCredentials.GetStudentId((ClaimsIdentity)Context.User.Identity);
Connections.Remove(studentId, Context.ConnectionId);
}
return(base.OnDisconnected(stopCalled));
}
public override Task OnConnected()
{
if (Context.User.IsInRole(RoleName.Student))
{
int studentId = AccountCredentials.GetStudentId((ClaimsIdentity)Context.User.Identity);
Connections.Add(studentId, Context.ConnectionId);
}
return(base.OnConnected());
}
public async Task <JsonResult> CheckForActiveCumulativeQuiz()
{
var studentId = AccountCredentials.GetStudentId();
var cumulativeQuizId = await Context.CumulativeQuizPasseds
.Where(iqp => iqp.StudentId == studentId && iqp.StartDate != null && iqp.EndDate == null)
.OrderBy(o => o.StartDate).Select(s => s.Id).FirstOrDefaultAsync();
return(Json(cumulativeQuizId, JsonRequestBehavior.AllowGet));
}
public async Task <JsonResult> CheckForActiveRealtimeQuiz()
{
var studentId = AccountCredentials.GetStudentId();
var moduleHistoryId =
await(from s in Context.Students
where s.Id == studentId
join lhg in Context.LectureHistoryGroups on s.GroupId equals lhg.GroupId
join sd in Context.StudentDisciplines on s.Id equals sd.StudentId
join lh in Context.LecturesHistories on sd.DisciplineId equals lh.DisciplineId
where lh.Id == lhg.LectureHistoryId
join mh in Context.ModuleHistories on lh.Id equals mh.LectureHistoryId
where mh.StartTime != null && mh.IsPassed == false
select mh).OrderBy(mh => mh.StartTime).Select(s => s.Id).FirstOrDefaultAsync();
return(Json(moduleHistoryId, JsonRequestBehavior.AllowGet));
}