private string AnswerContentJSONToString(ExamAnswerDTO examAnswer, double score, string time)
{
ReviewExamDetailDTO reviewExamDetail = new ReviewExamDetailDTO();
reviewExamDetail.Name = examService.IsRandom(examAnswer.ExamId) ? examRepository.GetRandomExam(examAnswer.ExamId).Name : examRepository.Get(examAnswer.ExamId).Name;
reviewExamDetail.Score = score;
reviewExamDetail.Time = time;
for (int questionIndex = 0; questionIndex < examAnswer.AnswerDetails.Count; questionIndex++)
{
/**
* Create new Question to add to review questions
* Create List answer to add to answers of questions above
* Get Userquestion with full information
* in question loop though set of answers to get information and add to list answer above
* assign list answer to question
* fill the rest of information for question
* add question to list
*/
ReviewQuestionDTO reviewQuestion = new ReviewQuestionDTO();
List <ReviewAnswerDTO> reviewAnswers = new List <ReviewAnswerDTO>();
var userQuestion = examAnswer.AnswerDetails[questionIndex];
var questionInDb = questionRepository.GetById(userQuestion.QuestionId);
if (questionInDb.Type == 3)
{
reviewAnswers.Add(new ReviewAnswerDTO
{
Content = userQuestion.Content
});
}
else
{
for (int answerIndex = 0; answerIndex < userQuestion.UserAnswers.Count; answerIndex++)
{
reviewAnswers.Add(new ReviewAnswerDTO
{
Content = answerRepository.Get(userQuestion.UserAnswers[answerIndex].AnswerId).Content,
IsSelected = userQuestion.UserAnswers[answerIndex].IsSelected
});
}
}
reviewQuestion.Content = questionInDb.Content;
reviewQuestion.IsCorrect = examineeService.GetQuestionState(userQuestion.QuestionId);
reviewQuestion.ReviewAnswers = reviewAnswers;
reviewQuestion.Type = questionInDb.Type;
reviewQuestion.Difficulty = questionInDb.Difficulty;
reviewExamDetail.ReviewQuestions.Add(reviewQuestion);
}
return(JsonConvert.SerializeObject(reviewExamDetail));
}
public ReviewExamDTO Update(ExamAnswerDTO examAnswer, Guid userId)
{
ReviewExamDTO mark = examineeService.CalculateMark(examAnswer, userId);
mark.Date = DateTime.Now.ToString("dd/MM/yyyy");
mark.ExamId = examAnswer.ExamId;
Score score = Get(examAnswer.ExamId, userId);
score.Score1 = Math.Round(mark.Score, 2, MidpointRounding.AwayFromZero);
score.Time = mark.TimeSpent;
score.AnswerContent = AnswerContentJSONToString(examAnswer, score.Score1, score.Time);
scoreRepository.Update(score);
ExamineeService.ExamineeService.QuestionState.Clear();
return(mark);
}
public ReviewExamDTO CalculateMark(ExamAnswerDTO examAnswer, Guid userId)
{
ReviewExamDTO mark = new ReviewExamDTO();
mark.TimeSpent = CalculateTimeSpent(examAnswer.ExamId, userId);
int numsOfTrue = 0;
examAnswer.AnswerDetails.ForEach(answer =>
{
var key = questionRepository.GetById(answer.QuestionId);
if (key.Type == 3)
{
if (answer.Content.Equals(key.Content))
{
QuestionState.Add(key.Id, true);
numsOfTrue++;
}
}
else
{
var userAnswers = answer.UserAnswers.Where(x => x.IsSelected == true).Select(x => x.AnswerId).OrderBy(x => x).ToList();
var trueAnswers = answerRepository.ListByQuestionId(key.Id).Where(x => x.IsCorrect == true).Select(x => x.Id).OrderBy(x => x).ToList();
if (string.Join("", userAnswers).Equals(string.Join("", trueAnswers)))
{
QuestionState.Add(key.Id, true);
numsOfTrue++;
}
}
if (!QuestionState.ContainsKey(key.Id))
{
QuestionState.Add(key.Id, false);
}
});
mark.Score = Math.Round(((Double)numsOfTrue) / examRepository.Count(examAnswer.ExamId, examService.IsRandom(examAnswer.ExamId)) * 10, 2, MidpointRounding.AwayFromZero);
return(mark);
}
