public void AddTest(TestInfo info, List <QuestionInfo> questions)
{
if (user == null)
{
throw userAccessException;
}
if (!TestValidator.IsValid(info) ||
!TestTitleIsAvailable(info.Title) ||
!TestValidator.IsValidQuestions(questions))
{
throw wrongDataException;
}
Test test = new Test(info)
{
AddDate = DateTime.Now,
UserId = user.Id
};
test = db.Tests.Add(test);
db.SaveChanges();
AddQuestions(test, questions);
return;
}
public bool EditTest(TestInfo info, List <QuestionInfo> questions)
{
if (user == null)
{
throw userAccessException;
}
if (!TestValidator.IsValid(info) ||
!TestTitleIsAvailable(info.Title, info.Id) ||
!TestValidator.IsValidQuestions(questions))
{
throw wrongDataException;
}
Test test = db.Tests.FirstOrDefault(t => t.Id == info.Id);
if (test == null)
{
return(false);
}
if (test.UserId != user.Id)
{
throw userAccessException;
}
RemoveQuestions(test);
test.UserId = user.Id;
test.Title = info.Title;
test.Description = info.Description;
test.Duration = info.Duration;
test.Attempts = info.Attempts;
test.Interval = info.Interval;
test.AddDate = DateTime.Now;
test.CategoryId = info.Category.Key;
test.RatingSystemId = info.RatingSystem.Key;
test.IsPrivate = info.IsPrivate;
test.IsQuestionsMix = info.IsQuestionsMix;
db.SaveChanges();
AddQuestions(test, questions);
return(true);
}
