public async Task <ActionResult> DropQuiz(string courseId, Guid slideId, bool isLti)
{
var slide = courseManager.GetCourse(courseId).GetSlideById(slideId);
if (slide is QuizSlide)
{
var userId = User.Identity.GetUserId();
var userQuizDrops = userQuizzesRepo.GetQuizDropStates(courseId, userId, slideId).Count(b => b);
var maxTriesCount = GetMaxTriesCount(courseId, slide as QuizSlide);
var isQuizScoredMaximum = userQuizzesRepo.IsQuizScoredMaximum(courseId, userId, slideId);
if (userQuizDrops + 1 < maxTriesCount && !isQuizScoredMaximum)
{
await userQuizzesRepo.DropQuizAsync(courseId, userId, slideId);
await visitsRepo.UpdateScoreForVisit(courseId, slideId, userId);
if (isLti)
{
LtiUtils.SubmitScore(courseId, slide, userId);
}
}
else if ((userQuizDrops + 1 >= maxTriesCount || isQuizScoredMaximum) && !(slide as QuizSlide).ManualChecking)
{
/* Allow user to drop quiz after all tries are exceeded, but don't update score */
await userQuizzesRepo.DropQuizAsync(courseId, userId, slideId);
}
}
var model = new { courseId, slideId = slide.Id, isLti };
if (isLti)
{
return(RedirectToAction("LtiSlide", "Course", model));
}
return(RedirectToAction("SlideById", "Course", model));
}