public QuestionInProgresWrapper(int number, TestInProgres currentQeustion, Action action)
{
Number = number;
TestType = currentQeustion.Question.TestType;
QuestionText = currentQeustion.Question.Text;
HasPrev = action.TestsInProgres.FirstOrDefault(q => q.Question.Number == (number - 1)) != null;
HasNext = action.TestsInProgres.FirstOrDefault(q => q.Question.Number == (number + 1)) != null;
AnswerVariantList = new List<VariantItem>();
QuestionCount = ((QuestionWithVariants) currentQeustion.Question).VariantAnswers.Count;
SelectedAnswer = ConvertAnswer(currentQeustion.Question.TestType, currentQeustion.UserAnswer);
StatusList = new List<StatusQuestion>();
foreach (var variant in ((QuestionWithVariants) currentQeustion.Question).VariantAnswers)
{
var variantId =
((QuestionWithVariants) currentQeustion.Question).VariantAnswers.IndexOf(variant);
AnswerVariantList.Add(new VariantItem
{
Text = variant.Text,
VariantId = variantId,
Selected =
InitializeChecked(currentQeustion.Question.TestType, currentQeustion.UserAnswer,
variantId)
});
}
foreach (var index in action.TestsInProgres.Select(test => action.TestsInProgres.IndexOf(test) + 1))
{
StatusList.Add(new StatusQuestion
{
Number = index,
IsActive = index == number
});
}
}
private static double CalculateRadio(TestInProgres test)
{
if (test.UserAnswer != null)
{
return test.Question.Answer == test.UserAnswer ? 1 : 0;
}
return 0;
}
private static double CalculateChecked(TestInProgres test)
{
if (test.UserAnswer.Count() != test.Question.Answer.Count())
{
return 0;
}
var answerPoints = 0;
var userPoints = 0;
if (test.UserAnswer != null)
{
for (int index = 0; index < test.Question.Answer.Count(); ++index)
{
if (test.Question.Answer[index] == '1')
{
++answerPoints;
switch (test.UserAnswer[index])
{
case '1':
++userPoints;
break;
default:
--userPoints;
break;
}
}
else
{
switch (test.UserAnswer[index])
{
case '1':
--userPoints;
break;
}
}
}
}
return userPoints > 0 ? userPoints/(double) answerPoints : 0;
}
private void SaveResultOfRadioQuestion(QuestionInProgresWrapper result, TestInProgres currentQuestion, UsersContext db)
{
var userAnswer = "";
for (var index = 0; index < ((QuestionWithVariants)currentQuestion.Question).VariantAnswers.Count; index++)
{
int number;
if (Int32.TryParse(result.SelectedAnswer, out number))
{
userAnswer += (number == index) ? "1" : "0";
}
else
{
userAnswer += "0";
}
}
currentQuestion.UserAnswer = userAnswer;
currentQuestion.Submitted = true;
db.SaveChanges();
}
private void SaveResultOfCheckedQuestion(QuestionInProgresWrapper result, TestInProgres currentQuestion, UsersContext db)
{
var userAnswer = result.AnswerVariantList.Aggregate("",
(current, res) => current + (res.Selected ? "1" : "0"));
currentQuestion.UserAnswer = userAnswer;
currentQuestion.Submitted = true;
db.SaveChanges();
}
private void SubbmitTest(int userId, TestInProgres currentQuestion, Action action, UsersContext db)
{
currentQuestion.Submitted = true;
action.DatePassing = DateTime.Now;
action.Status = 2;
db.SaveChanges();
CalculateResult(userId, action, db);
CopyToHistory(action, db);
RemoveFromProgres(action, db);
}
private ActionResult ExecuteCommand(ResponseAction response, int userId,
Action action, TestInProgres currentQuestion, UsersContext db
)
{
switch (response.Command)
{
case DataConst.Subbmit:
{
SubbmitTest(userId, currentQuestion, action, db);
return RedirectToAction("Results", "Result");
}
case DataConst.Next:
{
if (response.CurrentNumber.HasValue)
{
return RedirectToAction("TestInAction", "Test", new { number = response.CurrentNumber + 1});
}
break;
}
case DataConst.Prev:
{
if (response.CurrentNumber.HasValue)
{
return RedirectToAction("TestInAction", "Test", new { number = response.CurrentNumber - 1 });
}
break;
}
case DataConst.GoTo:
{
if (response.GoTo.HasValue)
{
return RedirectToAction("TestInAction", "Test", new { number = response.GoTo });
}
break;
}
}
ViewBag.WarningMessage = DataConst.WarningErrorMessage;
return RedirectToAction("TestInAction", "Test", new { number = 1 });
}
private ActionResult CheckCurrentQuestion(QuestionInProgresWrapper result, ResponseAction response, int userId,
Action action, TestInProgres currentQuestion, UsersContext db)
{
try
{
if (currentQuestion.Question.TestType == DataConst.CheckedType)
{
SaveResultOfCheckedQuestion(result, currentQuestion, db);
}
if (currentQuestion.Question.TestType == DataConst.RadioType)
{
SaveResultOfRadioQuestion(result, currentQuestion, db);
}
return ExecuteCommand(response, userId, action, currentQuestion, db);
}
catch (Exception)
{
ViewBag.WarningMessage = DataConst.WarningErrorMessage;
return RedirectToAction("TestInAction", "Test", new { number = 1 });
}
}