public ActionResult Register(SessionModel model)
{
if (model != null)
{
Session["SessionModel"] = model;
}
if (model == null || string.IsNullOrEmpty(model.UserName) || model.TestId < 1)
{
TempData["message"] = "Invalid Registration details. Please try again";
return(RedirectToAction("Index"));
}
var _ctx = new MyQuizNewEntities();
//to register the user to the system
// to register the user for test
Student _user = _ctx.Student.Where(x => x.Name.Equals(model.UserName, StringComparison.InvariantCultureIgnoreCase) &&
((string.IsNullOrEmpty(model.Email) && string.IsNullOrEmpty(x.Email)) || (x.Email == model.Email)) &&
((string.IsNullOrEmpty(model.Phone) && string.IsNullOrEmpty(x.Phone)) || (x.Phone == model.Phone))).FirstOrDefault();
if (_user == null)
{
_user = new Student()
{
Name = model.UserName,
Email = model.Email,
Phone = model.Phone,
EntryDate = DateTime.UtcNow,
AccessLevel = 100
};
_ctx.Student.Add(_user);
_ctx.SaveChanges();
}
Registration registration = _ctx.Registration.Where(x => x.StudentId == _user.Id &&
x.TestId == model.TestId &&
x.TokenExpireTime > DateTime.UtcNow).FirstOrDefault();
if (registration != null)
{
this.Session["TOKEN"] = registration.Token;
this.Session["TOKENEXPIRE"] = registration.TokenExpireTime;
}
else
{
Test test = _ctx.Test.Where(x => x.IsActive && x.Id == model.TestId).FirstOrDefault();
if (test != null)
{
Registration newRegistration = new Registration()
{
RegistrationDate = DateTime.UtcNow,
TestId = model.TestId,
Token = Guid.NewGuid(),
TokenExpireTime = DateTime.UtcNow.AddMinutes(test.DurationInMinute)
};
_user.Registration.Add(newRegistration);
_ctx.Registration.Add(newRegistration);
_ctx.SaveChanges();
this.Session["TOKEN"] = newRegistration.Token;
this.Session["TOKENEXPIRE"] = newRegistration.TokenExpireTime;
}
}
return(RedirectToAction("EvalPage", new { @token = Session["TOKEN"] }));
}
public ActionResult PostAnswer(AnswerModel choices)
{
var _ctx = new MyQuizNewEntities();
//varify the user is registered and is allow to check the questions
var registration = _ctx.Registration.Where(x => x.Token.Equals(choices.Token)).FirstOrDefault();
if (registration == null)
{
TempData["message"] = "This token is invalid";
return(RedirectToAction("Index"));
}
if (registration.TokenExpireTime < DateTime.UtcNow)
{
TempData["message"] = "The exam duretion has expired at " + registration.TokenExpireTime.ToString();
return(RedirectToAction("Index"));
}
var testQuestionInfo = _ctx.TestXQuestion.Where(x => x.TestId == registration.TestId && x.QuestionNumber == choices.QuestionId)
.Select(x => new
{
TQId = x.Id,
QT = x.Question.QuestionType,
QID = x.Id,
POINT = (decimal)x.Question.Points
}).FirstOrDefault();
if (testQuestionInfo != null)
{
if (choices.UserChoices.Count > 1)
{
var allPointValueOfChoices =
//LINQ
(
from a in _ctx.Choice.Where(x => x.IsActive)
join b in choices.UserSelectedId on a.Id equals b
select new { a.Id, Points = (decimal)a.Points }).AsEnumerable()
.Select(x => new TestXPaper()
{
RegistrationId = registration.Id,
TestXQuestionId = testQuestionInfo.QID,
ChoiceId = x.Id,
Answer = "CHECKED",
MarkScored = Math.Floor((testQuestionInfo.POINT / 100.00M) * x.Points)
// formula to calculate the points
// for expample 30% out of 50, we need 50/100 * 30
}
).ToList();
_ctx.TestXPaper.AddRange(allPointValueOfChoices);
}
else
{
//the answer is of type TEXT
_ctx.TestXPaper.Add(new TestXPaper()
{
RegistrationId = registration.Id,
TestXQuestionId = testQuestionInfo.QID,
ChoiceId = choices.UserChoices.FirstOrDefault().ChoiceId,
MarkScored = 1,
Answer = choices.Answer
});
}
_ctx.SaveChanges();
}
//get the next question depending on the direction
var nextQuestionNumber = 1;
if (choices.Direction.Equals("forward", StringComparison.CurrentCultureIgnoreCase))
{
nextQuestionNumber = _ctx.TestXQuestion.Where(x => x.TestId == choices.TestId && x.QuestionNumber > choices.QuestionId)
.OrderBy(x => x.QuestionNumber).Take(1).Select(x => x.QuestionNumber).FirstOrDefault();
}
else
{
nextQuestionNumber = _ctx.TestXQuestion.Where(x => x.TestId == choices.TestId && x.QuestionNumber < choices.QuestionId)
.OrderByDescending(x => x.QuestionNumber).Take(1).Select(x => x.QuestionNumber).FirstOrDefault();
}
if (nextQuestionNumber < 1)
{
nextQuestionNumber = 1;
}
return(RedirectToAction("EvalPage", new
{
@token = Session["TOKEN"],
@qno = nextQuestionNumber
}));
}