public async Task <bool> NewAttemptedQuestion(AttemptedQuestion attemptedQuestion)
{
using (var context = new AssessmentToolContext())
{
context.AttemptedQuestions.Add(attemptedQuestion);
return(await context.SaveChangesAsync() > 0);
}
}
public async Task <ActionResult> AnswerQuestion(AttemptQuizViewModel model)
{
Thread.Sleep(2000);
var studentQuiz = StudentQuizzesService.Instance.GetStudentQuiz(model.StudentQuizID);
if (studentQuiz == null)
{
return(new HttpStatusCodeResult(500));
}
if (model.TimerExpired)
{
studentQuiz.CompletedAt = DateTime.Now;
studentQuiz.ModifiedOn = DateTime.Now;
if (await StudentQuizzesService.Instance.UpdateStudentQuiz(studentQuiz))
{
StudentQuizViewModel studentQuizModel = new StudentQuizViewModel();
studentQuizModel.StudentQuiz = studentQuiz;
studentQuizModel.TimerExpired = model.TimerExpired;
return(PartialView("_AttemptDetails", studentQuizModel));
}
else
{
return(new HttpStatusCodeResult(500));
}
}
else
{
var quiz = QuizzesService.Instance.GetQuiz(model.QuizID);
if (quiz == null)
{
return(HttpNotFound());
}
var question = QuestionsService.Instance.GetQuizQuestion(quiz.ID, model.QuestionID);
if (question == null)
{
return(HttpNotFound());
}
var selectedOptions = QuestionsService.Instance.GetOptionsByIDs(model.SelectedOptionIDs.CSVToListInt());
if (selectedOptions == null)
{
return(HttpNotFound());
}
AttemptedQuestion attemptedQuestion = new AttemptedQuestion();
attemptedQuestion.StudentQuizID = studentQuiz.ID;
attemptedQuestion.QuestionID = question.ID;
attemptedQuestion.SelectedOptions = selectedOptions.Select(x => new AttemptedOption()
{
AttemptedQuestionID = attemptedQuestion.ID, Option = x, OptionID = x.ID
}).ToList();
attemptedQuestion.Score = Calculator.CalculateAttemptedQuestionScore(question.Options, attemptedQuestion.SelectedOptions);
attemptedQuestion.AnsweredAt = DateTime.Now;
attemptedQuestion.ModifiedOn = DateTime.Now;
if (await StudentQuizzesService.Instance.NewAttemptedQuestion(attemptedQuestion))
{
if (model.QuestionIndex != quiz.Questions.Count() - 1)
{
model.QuizType = quiz.QuizType;
model.TotalQuestions = quiz.Questions.Count;
model.Question = quiz.Questions.ElementAtOrDefault(model.QuestionIndex + 1);
model.QuestionIndex = model.QuestionIndex + 1;
model.Options = new List <Option>();
model.Options.AddRange(model.Question.Options);
model.Options.Shuffle();
model.EnableQuestionTimer = quiz.EnableQuestionTimer;
model.Seconds = Calculator.CalculateAllowedQuestionTime(quiz);
return(PartialView("_QuizQuestion", model));
}
else //this was the Last question so display the result
{
studentQuiz.CompletedAt = DateTime.Now;
if (!await StudentQuizzesService.Instance.UpdateStudentQuiz(studentQuiz))
{
return(new HttpStatusCodeResult(500));
}
return(RedirectToAction("AttemptDetails", new { studentQuizID = studentQuiz.ID, isPartial = true, timerExpired = model.TimerExpired }));
}
}
else
{
return(new HttpStatusCodeResult(500));
}
}
}
public async Task <ActionResult> AnswerQuestion(AttemptQuizViewModel model)
{
if (model.TimerExpired)
{
var studentQuiz = await db.StudentQuizzes.FindAsync(model.StudentQuizID);
studentQuiz.CompletedAt = DateTime.Now;
studentQuiz.ModifiedOn = DateTime.Now;
db.Entry(studentQuiz).State = System.Data.Entity.EntityState.Modified;
await db.SaveChangesAsync();
StudentQuizViewModel studentQuizModel = new StudentQuizViewModel();
studentQuizModel.StudentQuiz = studentQuiz;
studentQuizModel.TimerExpired = model.TimerExpired;
return(PartialView("AttemptDetailsPartial", studentQuizModel));
}
else
{
var quiz = await db.Quizzes.FindAsync(model.QuizID);
if (quiz == null || !quiz.IsActive)
{
return(HttpNotFound());
}
var question = quiz.Questions.Find(q => q.ID == model.QuestionID);
if (question == null || !question.IsActive)
{
return(HttpNotFound());
}
var selectedOption = question.Options.Find(o => o.ID == model.SelectedOptionID);
if (selectedOption == null || !selectedOption.IsActive)
{
return(HttpNotFound());
}
AttemptedQuestion attemptedQuestion = new AttemptedQuestion();
attemptedQuestion.Question = question;
attemptedQuestion.SelectedOption = selectedOption;
attemptedQuestion.AnsweredAt = DateTime.Now;
if (selectedOption.IsCorrect)
{
attemptedQuestion.IsCorrect = true;
}
var studentQuiz = await db.StudentQuizzes.FindAsync(model.StudentQuizID);
if (studentQuiz.AttemptedQuestions == null)
{
studentQuiz.AttemptedQuestions = new List <AttemptedQuestion>();
}
attemptedQuestion.IsActive = true;
attemptedQuestion.ModifiedOn = DateTime.Now;
studentQuiz.AttemptedQuestions.Add(attemptedQuestion);
if (model.QuestionIndex == quiz.Questions.Count - 1) //this was the Last question
{
studentQuiz.CompletedAt = DateTime.Now;
}
db.Entry(studentQuiz).State = System.Data.Entity.EntityState.Modified;
await db.SaveChangesAsync();
if (model.QuestionIndex != quiz.Questions.Where(q => q.IsActive).Count() - 1)
{
model.TotalQuestions = quiz.Questions.Count;
model.Question = quiz.Questions.Where(q => q.IsActive).ElementAtOrDefault(model.QuestionIndex + 1);
model.QuestionIndex = model.QuestionIndex + 1;
model.Options = new List <Option>();
model.Options.AddRange(model.Question.Options.Where(o => o.IsActive));
model.Options.Shuffle();
return(PartialView("QuizQuestion", model));
}
else //this was the Last question so display the result
{
StudentQuizViewModel studentQuizModel = new StudentQuizViewModel();
studentQuizModel.StudentQuiz = studentQuiz;
studentQuizModel.TimerExpired = model.TimerExpired;
return(PartialView("AttemptDetailsPartial", studentQuizModel));
}
}
}