public List <int> QuestionSelect(List <int> questionIds, int count, int lessonId, DifficultyType difficulty)
{
int tableCount = _context.GetTableCount(s => s.LessonId == lessonId && s.Difficulty == difficulty);
if (tableCount < count)
{
_context.GetList(s => s.LessonId == lessonId && s.Difficulty == difficulty).Select(s => s.Id).ToList().ForEach(questionIds.Add);
questionIds.Add(-1);
return(questionIds);
}
var randomNumberGenerator = new Random();
List <int> skipValues = new List <int>();
for (int i = 0; i < count; i++)
{
int randomValue = randomNumberGenerator.Next(tableCount);
repeat : if (skipValues.Any(s => s == randomValue))
{
randomValue = randomNumberGenerator.Next(tableCount);
goto repeat;
}
skipValues.Add(randomValue);
questionIds.Add(_context.Get(s => s.LessonId == lessonId && s.Difficulty == difficulty, randomValue).Id);
}
return(questionIds);
}
public void ShowAnswers(int id)
{
Exam exam = _context.Get(s => s.Id == id);
StringBuilder sb = new StringBuilder();
sb.AppendLine("<h2>" + exam.LessonName + "</h2><br/>");
sb.AppendLine("<h3>" + exam.Name + "</h3><br/><h3> " + exam.Observer + " </h3><br/><br/>");
int alfabeIterator = 0, iterateTrueAnswer = 0, iterator = 0, iteratorAnswer = 0;
List <int> trueAnswers;
foreach (QuestionExamRelation question in exam.QuestionInExam)
{
trueAnswers = new List <int>();
sb.AppendLine("<label><b>" + (++iterator) + " -) " + question.Question.MyQuestion + "</b></label></br>");
foreach (var classic in question.Question.ContainsAnswerClassics)
{
sb.AppendLine("<label><i>Cevap : " + classic.MyAnswer + "</i></label></br>");
sb.AppendLine("<br/><label>Puanı :  <input name='classicAnswer" + classic.Id + "' id='classicAnswer" + classic.Id + "' type='text'></label><br/><br/>");
iteratorAnswer++;
}
foreach (var test in question.Question.ContainsAnswerTests)
{
if (test.IsTrue)
{
sb.AppendLine("<label style='color:green'><i>" + _alfabeArray[alfabeIterator].ToString() + "-)" + test.MyAnswer + "</i></label><br/>");
trueAnswers.Add(test.Id);
iteratorAnswer++;
}
else
{
sb.AppendLine("<label>" + _alfabeArray[alfabeIterator].ToString() + "-)" + test.MyAnswer + "</label><br/>");
}
alfabeIterator++;
}
if (question.Question.Type != QuestionType.Klasik)
{
string trueAnswersstr = "";
foreach (int trueAnswer in trueAnswers)
{
trueAnswersstr += trueAnswer + "-";
}
sb.AppendLine("<br/><label>Doğru mu  <input name='" + trueAnswersstr + "' id='" + trueAnswersstr + "' type='checkbox'></label><br/><br/>");
}
alfabeIterator = 0;
}
sb.AppendLine("<input type='hidden' name='answerCount' id='answerCount' value='" + iteratorAnswer + "' type='checkbox'>");
_view.ShowAnswer(sb);
}
public void CreateExam(TextBox[] textBoxs)
{
_builder = new ExamBuilder(textBoxs[textBoxs.Length - 2].Text);
List <Question> questions = new List <Question>();
int cast;
for (int i = 0; i < textBoxs.Length - 2; i++)
{
cast = Convert.ToInt32(textBoxs[i].ID);
questions.Add(_context.Get(s => s.Id == cast));
}
Exam e = _builder.SetLesson(questions[0].Lesson)
.SetObserver(textBoxs[textBoxs.Length - 1].Text).AddQuestions(questions).Build();
_view.ShowCreatedExam(_builder.ConvertExamToString(e, questions), e.Id.ToString());
}
public void CalculateAnswer(int[,] answers, int examId)
{
int[] ids = new int[answers.GetLength(0)];
for (int i = 0; i < answers.GetLength(0); i++)
{
if (answers[i, 1] == -1)
{
ids[i] = answers[i, 0];
}
}
Exam exam = _context.Get(s => s.Id == examId);
exam.QuestionInExam.ToList().ForEach(s => s.Question.ContainsAnswerTests.ToList().ForEach(k => k.AnswerCount += 1));
exam.QuestionInExam.ToList().ForEach(s => s.Question.ContainsAnswerTests
.Where(r => ids.Contains(r.Id)).Where(k => k.IsTrue)
.ToList().ForEach(q => q.TrueAnswerCount += 1));
for (int i = 0; i < answers.GetLength(0); i++)
{
int lastId = answers[i, 0];
if (answers[i, 1] != -1)
{
AnswerClassic classic = _contextClassic.Get(s => s.Id == lastId);
if (classic.Highest <= answers[i, 1])
{
classic.Highest = answers[i, 1];
}
if (classic.Lowest >= answers[i, 1])
{
classic.Lowest = answers[i, 1];
}
classic.Avarage = ((classic.Avarage * classic.AnswerCount) + answers[i, 1]) / ++classic.AnswerCount;
_contextClassic.Update(classic);
}
}
_context.Update(exam);
}
public void GetEntity(Expression <Func <Exam, bool> > filter = null)
{
_view.ShowDetail(Context.Get(filter));
}
