private Test GetTest(QuestionViewModel qvm)
{
////Get new TestId by passing studentId, testType to TestService
Test t;
Student student = _service.GetStudent(qvm.StudentId);
if (qvm.TestId == 0)
{
t = _service.CreateTest(qvm.TestType, student);
//testId = t.Id;
}
else
{
t = _service.GetTest(qvm.TestId);
}
return t;
}
private void SaveAnswer(QuestionViewModel qvm, Question prevQuestion, Test test)
{
if (qvm.AnswerValue != null && prevQuestion != null)
{
Answer answer = new Answer();
answer.Value = qvm.AnswerValue;
//test = service.GetTest(testId);
_service.SaveAnswer(test, answer, prevQuestion);
}
}
public ActionResult Question( QuestionViewModel qvm)
{
//if (!ModelState.IsValid)
// return View("Error");
Test test = null;
Question prevQuestion = null;
Question nextQuestion = null;
if (qvm.StudentId == 0)
return View("Error");
test = GetTest(qvm);
//Get current question
if (qvm.QuestionId > 0)
{
prevQuestion = _service.GetQuestion(qvm.QuestionId);
}
//Save answer
SaveAnswer(qvm, prevQuestion, test);
//Get next question
nextQuestion = _service.GetNextQuestion(test, prevQuestion);
//Check if Test is completed -- If not update model values
if (nextQuestion == null)
{
return View("TestComplete");
}
else
{
qvm.QuestionId = nextQuestion.Id;
qvm.QuestionValue = nextQuestion.Value;
qvm.TestId = test.Id;
ModelState.Remove("QuestionId");
}
//Figure out which PartialView to render
ViewBag.Partial = GetViewName(nextQuestion);
if (ViewBag.Partial == "Error")
{
return View("Error");
}
return View(qvm);
}