public void DropQuiz(string userId, Guid slideId)
{
var quizzes = db.UserQuizzes.Where(q => q.UserId == userId && q.SlideId == slideId).ToList();
foreach (var q in quizzes)
{
q.isDropped = true;
}
db.SaveChanges();
}
public void UpdateTempCourseLastUpdateTime(string courseId)
{
var course = db.TempCourses.Find(courseId);
if (course == null)
{
return;
}
course.LastUpdateTime = DateTime.Now;
db.SaveChanges();
}
public void CreateUlearnBotUserIfNotExists()
{
if (!db.Users.Any(u => u.UserName == UlearnBotUsername))
{
var user = new ApplicationUser
{
UserName = UlearnBotUsername,
FirstName = "Ulearn",
LastName = "bot",
Email = "*****@*****.**",
};
var userManager = new ULearnUserManager(db);
userManager.Create(user, StringUtils.GenerateSecureAlphanumericString(10));
db.SaveChanges();
}
}
public QuizVersion AddQuizVersionIfNeeded(string courseId, QuizSlide slide)
{
var slideId = slide.Id;
var quizXml = slide.QuizNormalizedXml;
var lastQuizVersion = GetLastQuizVersion(courseId, slideId);
var newQuizVersion = new QuizVersion
{
CourseId = courseId,
SlideId = slideId,
LoadingTime = DateTime.Now,
NormalizedXml = quizXml
};
if (lastQuizVersion == null || lastQuizVersion.NormalizedXml != newQuizVersion.NormalizedXml)
{
db.QuizVersions.Add(newQuizVersion);
db.SaveChanges();
return(newQuizVersion);
}
return(lastQuizVersion);
}
public void Delete(UserQuestion userSolution)
{
db.UserQuestions.Remove(userSolution);
db.SaveChanges();
}
