public ActionResult LogOn(admindetails model, string returnUrl)
{
OnlineExamEntities4 db = new OnlineExamEntities4();
if (ModelState.IsValid)
{
var admin = (from adminlist in db.Admins
where adminlist.Name == model.UserName && adminlist.Password == model.Password
select new
{
adminlist.Name
}).ToList();
if (admin.FirstOrDefault() != null)
{
FormsAuthentication.SetAuthCookie(model.UserName, false);
return(RedirectToAction("Details", "Admin"));
}
else
{
ModelState.AddModelError("", "Invalid login credentials.");
}
}
return(View());
}
public ActionResult EditTest(SessionModel model)
{
if (model != null)
{
var _ctx = new OnlineExamEntities4();
var test = _ctx.Tests.Where(x => x.Id == model.TestId).FirstOrDefault();
if (test != null)
{
ViewBag.TestId = test.Id;
ViewBag.TestName = test.Name;
ViewBag.TestDescription = test.Description;
ViewBag.QuestionCount = test.TestXQuestions.Count;
ViewBag.TestDuration = test.DurationInMinute;
var sum = 0;
var mm = test.TestXQuestions.Where(x => x.TestId == test.Id).ToList();
foreach (var m in mm)
{
sum = sum + m.Question.Points;
}
ViewBag.MM = sum;
}
var ques = _ctx.Questions.ToList();
IList <Question> testxquestion = (
from a in _ctx.TestXQuestions.Where(x => x.TestId == test.Id).AsEnumerable()
join b in ques on a.QuestionId equals b.Id
select b).ToList();
return(View(testxquestion));
}
return(View(model));
}
public ActionResult Instruction(SessionModel model)
{
if (model != null)
{
var _ctx = new OnlineExamEntities4();
var test = _ctx.Tests.Where(x => x.IsActive == true && x.Id == model.TestId).FirstOrDefault();
if (test != null)
{
ViewBag.TestName = test.Name;
ViewBag.TestDescription = test.Description;
ViewBag.QuestionCount = test.TestXQuestions.Count;
ViewBag.TestDuration = test.DurationInMinute;
}
}
return(View(model));
}
public ActionResult Index()
{
var _ctx = new OnlineExamEntities4();
ViewBag.Tests = _ctx.Tests.Where(x => x.IsActive == true).Select(x => new { x.Id, x.Name }).ToList();
SessionModel _model = null;
if (Session["SessionModel"] == null)
{
_model = new SessionModel();
}
else
{
_model = (SessionModel)Session["SessionModel"];
}
return(View(_model));
}
public ActionResult Result(Guid token, ResultModel model)
{
var _ctx = new OnlineExamEntities4();
// verify the user is registered and is allowed to check the question
Registration registration = _ctx.Registrations.Where(x => x.Token == token
).Single();
if (token == null)
{
TempData["message"] = "this registration is invalid";
return(RedirectToAction("Index"));
}
else
{
registration.TokenExpireTime = DateTime.Now.TimeOfDay;
_ctx.SaveChanges();
}
var test = _ctx.TestXPapers.Where(x => x.RegistrationId == registration.Id).FirstOrDefault();
if (test != null)
{
model.TestId = registration.TestId;
model.TestName = registration.Test.Name;
model.UserName = registration.User.Name;
decimal msum = 0, qsum = 0;
var mlist = _ctx.TestXPapers.Where(x => x.RegistrationId == registration.Id && x.MarkScored > 0).Select(x => x.MarkScored).ToList();
foreach (var m in mlist)
{
msum = msum + m.Value;
}
var markscored = msum;
var qlist = _ctx.TestXQuestions.Where(x => x.TestId == registration.TestId).Select(x => x.Question.Points).ToList();
foreach (var q in qlist)
{
qsum = qsum + q;
}
//ViewBag.totalmarks = 2*(_ctx.Tests.Where(x => x.Id == registration.TestId).Select(x=>x.TestXQuestions.Count()).FirstOrDefault());
ViewBag.totalmarks = qsum;
//model.MarkScored = markscored;
model.MarkScored = msum;
registration.MarkScored = markscored;
registration.MaximumMarks = ViewBag.totalmarks;
_ctx.SaveChanges();
// to remove textxpapers data after the test
Registration reg = _ctx.Registrations.Where(x => x.Token == token
).SingleOrDefault();
var txp = _ctx.TestXPapers.Where(x => x.RegistrationId == registration.Id).ToList();
if (token == null)
{
TempData["message"] = "this registration is invalid";
return(RedirectToAction("Index"));
}
else
{
foreach (var t in txp)
{
_ctx.TestXPapers.Remove(t);
}
//_ctx.Registrations.Remove(registration); we don't want to remove registration
_ctx.SaveChanges();
}
// to send the marks scored by user to his/her email
sendResultMail(registration);
}
return(View(model));
}
public ActionResult PostAnswer(AnswerModel choices)
{
var _ctx = new OnlineExamEntities4();
// verify the user is registered and is allowed to check the question
var registration = _ctx.Registrations.Where(x => x.Token == (choices.Token)).FirstOrDefault();
if (registration == null)
{
TempData["message"] = "this token is invalid";
return(RedirectToAction("Index"));
}
if (registration.TokenExpireTime < DateTime.Now.TimeOfDay)
{
TempData["message"] = "the exam duration has expired at" + registration.TokenExpireTime.ToString();
//_ctx.Registrations.Remove(registration);
//_ctx.SaveChanges();
return(RedirectToAction("Index"));
}
// to check the answered question is answered or not . If answered then store them in database and evaluate the marks scored.
var testQuestionInfo = _ctx.TestXQuestions.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() > 0) // if choices is of radio or checkbox type
{
var c = choices.UserSelectedId.ToList();
var quesid = (c.Count() != 0)? _ctx.Choices.Where(x => x.QuestionId == testQuestionInfo.TQId).Select(x => x.QuestionId).FirstOrDefault() : 0;
var testxpaperlist = _ctx.TestXPapers.Where(x => x.RegistrationId == registration.Id && x.TestXQuestionId == quesid).FirstOrDefault();
var allPointValueOfChoices =
(
from a in _ctx.Choices.Where(x => x.IsActive).AsEnumerable()
join b in c on a.Id equals b.ChoiceId
select new { a.Id, Point = (decimal)a.Points }).AsEnumerable()
.Select(x => new TestXPaper()
{
RegistrationId = registration.Id,
TestXQuestionId = testQuestionInfo.QID,
ChoiceId = x.Id,
Answer = "checked",
MarkScored = Math.Floor((decimal)_ctx.Choices.Where(y => y.Id == x.Id && y.Points > 0).Select(p => p.Question.Points).FirstOrDefault()) // getting the points of the question for correct answer
}).ToList();
if (testxpaperlist != null) //&& testxpaperlist.RegistrationId == registration.Id && testxpaperlist.TestXQuestionId == testQuestionInfo.QID)
{
testxpaperlist.ChoiceId = allPointValueOfChoices[0].ChoiceId;
testxpaperlist.Answer = allPointValueOfChoices[0].Answer;
testxpaperlist.MarkScored = allPointValueOfChoices[0].MarkScored;
}
else
{
if (c.Count != 0)
{
_ctx.TestXPapers.Add(allPointValueOfChoices[0]);
}
}
_ctx.SaveChanges();
}
else
{
//answer of the type text
_ctx.TestXPapers.Add(new TestXPaper()
{
RegistrationId = registration.Id,
TestXQuestionId = testQuestionInfo.QID,
ChoiceId = choices.UserChoices.FirstOrDefault().ChoiceId,
MarkScored = 2,
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.TestXQuestions.Where(x => x.TestId == choices.TestId &&
x.QuestionNumber > choices.QuestionId)
.OrderBy(x => x.QuestionNumber).Take(1).Select(x => x.QuestionNumber).FirstOrDefault();
}
else
{
nextQuestionNumber = _ctx.TestXQuestions.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
}));
}
public ActionResult EvalPage(Guid token, int?qno)
{
if (token == null)
{
TempData["message"] = "you have an invalid token. Please re-register and try again";
return(RedirectToAction("Index"));
}
var _ctx = new OnlineExamEntities4();
// verify the user is registered and is allowed to check the question
var registration = _ctx.Registrations.Where(x => x.Token == (token)).FirstOrDefault();
if (registration == null)
{
TempData["message"] = "this registration is invalid";
return(RedirectToAction("Index"));
}
if (registration.TokenExpireTime < DateTime.Now.TimeOfDay)
{
TempData["message"] = "the exam duration has expired at " + registration.TokenExpireTime.ToString();
//_ctx.Registrations.Remove(registration);
//_ctx.SaveChanges();
return(RedirectToAction("Result", new { @token = Session["TOKEN"] }));
}
if (qno.GetValueOrDefault() < 1)
{
qno = 1;
}
var testQuestionId = _ctx.TestXQuestions
.Where(x => x.TestId == registration.TestId && x.QuestionNumber == qno)
.Select(x => x.Id).FirstOrDefault();
if (testQuestionId > 0)
{
var _model = _ctx.TestXQuestions.ToList().Where(x => x.Id == testQuestionId)
.Select(x => new QuestionModel()
{
QuestionType = x.Question.QuestionType,
QuestionNumber = x.QuestionNumber,
Question = x.Question.Question1,
Point = x.Question.Points,
TestId = x.TestId,
TestName = x.Test.Name,
Options = x.Question.Choices.Where(y => y.IsActive == true).Select(y => new QXOModel()
{
ChoiceId = y.Id,
Label = y.Label
}).ToList(),
}).FirstOrDefault();
// now if it is already answered earlier, set the choice of the user
var savedAnswers = _ctx.TestXPapers.Where(x => x.TestXQuestionId == testQuestionId && x.RegistrationId == registration.Id && x.Choice.IsActive == true)
.Select(x => new { x.ChoiceId, x.Answer }).ToList();
foreach (var savedAnwer in savedAnswers)
{
_model.Options.Where(x => x.ChoiceId == savedAnwer.ChoiceId).FirstOrDefault().Answer = savedAnwer.Answer;
}
_model.TotalQuestionInSet = _ctx.TestXQuestions.Where(x => x.Question.IsActive == true && x.TestId == registration.TestId).Count();
ViewBag.TimeExpire = (registration.TokenExpireTime);
return(View(_model));
}
else
{
return(View("Error"));
}
}
public ActionResult Registration(SessionModel model)
{
if (model != null)
{
Session["SessionModel"] = model;
}
if (model == null || string.IsNullOrEmpty(model.UserName) || string.IsNullOrEmpty(model.Email)
// || string.IsNullOrEmpty(model.Password)
|| model.TestId < 1)
{
TempData["message"] = "Invalid Registration Details. Please try again.";
return(RedirectToAction("Index"));
}
var _ctx = new OnlineExamEntities4();
//to register the user to system
//to register the user for test
User _user = _ctx.Users.Where(x => x.Name.Equals(model.UserName, StringComparison.InvariantCultureIgnoreCase) &&
((string.IsNullOrEmpty(model.Email) && string.IsNullOrEmpty(x.Email)) || (x.Email == model.Email))
//&& ((string.IsNullOrEmpty(model.Password) && string.IsNullOrEmpty(x.Password)) || (x.Password == model.Password))
).FirstOrDefault();
if (_user == null)
{
_user = new User()
{
Name = model.UserName,
Email = model.Email,
//Password = model.Password,
EntryDate = DateTime.Now,
AccessLevel = "user",
IsValid = true
};
_ctx.Users.Add(_user);
_ctx.SaveChanges();
}
var time = DateTime.Now.TimeOfDay;
Registration registration = _ctx.Registrations.Where(x => x.UserId == _user.Id &&
x.TestId == model.TestId &&
x.TokenExpireTime > time
).FirstOrDefault();
if (registration != null)
{
this.Session["TOKEN"] = registration.Token;
//this.Session["TOKENEXPIRE"] = registration.TokenExpireTime;
}
else
{
Test test = _ctx.Tests.Where(x => x.IsActive == true && x.Id == model.TestId).FirstOrDefault();
if (test != null)
{
Registration newRegistration = new Registration()
{
RegistrationDate = DateTime.Now,
TestId = model.TestId,
Token = Guid.NewGuid(),
TokenExpireTime = time + test.DurationInMinute // add time test.DurationInMinute to current time
};
_user.Registrations.Add(newRegistration);
_ctx.Registrations.Add(newRegistration);
_ctx.SaveChanges();
this.Session["TOKEN"] = newRegistration.Token;
// this.Session["TOKENEXPIRE"] = newRegistration.TokenExpireTime;
}
}
return(RedirectToAction("EvalPage", new { @token = Session["TOKEN"] }));
}
