public IActionResult TakeAssessment(Guid?id)
{
Assessment assessment = _assessmentService.GetAssessmentAndQuestionsById(id.Value);
if (User.Identity.IsAuthenticated && User.IsInRole("Student"))
{
Guid studentId = Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.NameIdentifier).Value);
Student student = _studentService.GetStudentWithAssessments(studentId);
Student studentWithAssessments = _studentService.GetEnrolledCourseAssessments(studentId);
if (studentWithAssessments.StudentAssessments.FirstOrDefault(stdass => stdass.AssessmentId.Equals(id.Value)) == null)
{
return(RedirectToAction(nameof(Details), new { id = id.Value }));
}
foreach (var studentAssessment in student.StudentAssessments)
{
if (studentAssessment.AssessmentId.Equals(id.Value))
{
if (studentAssessment.HasTaken)
{
return(RedirectToAction(nameof(Details), new { id = id.Value }));
}
}
}
}
if (assessment == null)
{
return(NotFound());
}
TakeAssessmentVM takeAssessmentVM = new TakeAssessmentVM
{
questions = assessment.Questions.ToArray()
};
foreach (var question in takeAssessmentVM.questions)
{
question.CorrectOption = null;
}
return(View(takeAssessmentVM));
}
public IActionResult TakeAssessment(Guid?id, TakeAssessmentVM takeAssessmentVM)
{
int correctAnswers = 0;
Assessment assessment = _assessmentService.GetAssessmentAndQuestionsById(id.Value);
Question[] questions = assessment.Questions.ToArray();
Guid studentId = Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.NameIdentifier).Value);
string answers = string.Empty;
for (int i = 0; i < questions.Length; i++)
{
Question question = questions[i];
string optionIndexString = $"selectedAnswer[{i}]";
string option = Request.Form[optionIndexString];
if (option != null)
{
answers += option;
if (question.CorrectOption.Equals(option))
{
correctAnswers++;
}
}
else
{
answers += "null";
}
if (i < questions.Length - 1)
{
answers += "-";
}
}
_studentService.RegisterAssessmentPerformance(studentId, id.Value, correctAnswers, questions.Length);
HttpContext.Response.Cookies.Append("Score", $"You scored {correctAnswers} / {questions.Length}");
HttpContext.Response.Cookies.Append("Answers", answers);
HttpContext.Response.Cookies.Append("AssessmentId", assessment.Id.ToString());
return(RedirectToAction(nameof(Result)));
}
