/// <summary>
/// update question answer
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public int updateAnswerQuizeQuestion(question_answer obj)
{
var data = context.question_answer.Where(q => q.userId == obj.userId && q.questionId == obj.questionId).FirstOrDefault();
data.answer = obj.answer;
//context.question_answer.Add(obj);
context.SaveChanges();
return(obj.Id);
}
void ReadCompleteLines(string fullTxt)
{
string[] txtLines = fullTxt.Split('\n');
for (int i = 0; i < txtLines.Length; i += 2)
{
question_answer p_r = new question_answer();
p_r.answer = txtLines[i].Trim();
p_r.question = txtLines[i + 1].Trim();
list_question_answer.Add(p_r);
}
}
public void SendExamResult(int examid, int studentid, string answers)
{
Exam thisExam = new Exam();
Users thisStudent = new Users();
thisExam = Database.Session.Load <Exam>(examid);
thisStudent = Database.Session.Load <Users>(studentid);
string _students_answers = "";
string _correct_answers = "";
var examDetailsArray = JsonConvert.DeserializeObject <List <GetFormData> >(answers);
int totalResult = 0,
point_per_question = (100 / thisExam.ExamQuestions.Count);
question_answer[] questionsAndAnswers = new question_answer[examDetailsArray.Count];
for (int i = 0; i < examDetailsArray.Count; i++)
{
questionsAndAnswers[i].answer = examDetailsArray[i].Name.ToString()[examDetailsArray[i].Name.Length - 1];
questionsAndAnswers[i].question_number = examDetailsArray[i].Name.ToString().TrimEnd('A', 'B', 'C', 'D', 'E');
}
foreach (var answer in questionsAndAnswers)
{
var getQuestionFromDatabase = Database.Session.Load <Questions>(Convert.ToInt32(answer.question_number));
_students_answers += answer.answer + ",";
_correct_answers += getQuestionFromDatabase.TrueAnswer + ",";
if (getQuestionFromDatabase.TrueAnswer.ToString().ToUpper() == answer.answer.ToString().ToUpper())
{
totalResult += point_per_question;
}
}
ExamResult exam_result = new ExamResult {
exam = thisExam,
student = thisStudent,
students_answers = _students_answers.TrimEnd(','),
correct_answers = _correct_answers.TrimEnd(','),
teacher = thisExam.teacher,
result = totalResult
};
Database.Session.Save(exam_result);
Database.Session.Flush();
}
public Response.Response <int> answerQuizeQuestion(question_answer obj)
{
Response.Response <int> response = new Response.Response <int>();
//check if user is already answer this qestion befor
bool answered = _service.checkIdQuestionAnswered(obj.questionId.Value, obj.userId.Value);
//if not answered before add new answer
if (!answered)
{
var result = _service.answerQuizeQuestion(obj);
response.Result = result;
response.StatusCode = 200;
}
//if answered update existing answer
else
{
var result = _service.updateAnswerQuizeQuestion(obj);
response.Result = result;
response.StatusCode = 200;
}
return(response);
}
/// <summary>
/// aswer question
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public int answerQuizeQuestion(question_answer obj)
{
context.question_answer.Add(obj);
context.SaveChanges();
return(obj.Id);
}
public void MarkAsModified(question_answer item)
{
}
