/// <summary>
/// Gets the test answers.
/// </summary>
/// <param name="testCopyId">The test copy id.</param>
/// <returns></returns>
public List <QuestionModel> GetTestAnswers(int testCopyId)
{
TestCopy testCopy = m_testsService.GetTestCopy(testCopyId);
Test test = m_testsService.GetTestById(testCopy.FK_TestId);
List <QuestionModel> questions = new List <QuestionModel>();
XDocument multiTestCopyDocument = XDocument.Load(new StringReader(testCopy.TestCopyStructure));
// Question list
IEnumerable <XElement> questionElements = multiTestCopyDocument.Descendants("Q");
foreach (TestQuestion testQuestion in test.TestQuestions)
{
XElement questionElement = questionElements.Where(q => Convert.ToInt64(q.Attribute("qId").Value)
== testQuestion.QuestionId).FirstOrDefault();
if (questionElement != null)
{
QuestionModel question = new QuestionModel();
question.Id = Convert.ToInt32(questionElement.Attribute("qOrder").Value);
question.Content = string.Format("{0}. {1}", question.Id, testQuestion.Question.Content);
long questionId = Convert.ToInt64(questionElement.Attribute("qId").Value);
Answer answer = AllAnswerList.Where(a => a.FK_QuestionId == questionId && a.IsAnswer == true).FirstOrDefault();
int order = Convert.ToInt32(questionElement.Elements("A")
.Where(ao => Convert.ToInt64(ao.Attribute("aId").Value) == answer.AnswerId)
.FirstOrDefault()
.Attribute("aOrder")
.Value);
string answerOrder = order == 1 ? "A" : (order == 2 ? "B" : (order == 3 ? "C" : "D"));
question.Answer1 = answer != null?string.Format("Đáp án: {0}. {1}", answerOrder, answer.Content) : "Đáp án: ";
questions.Add(question);
}
}
return(questions.OrderBy(x => x.Id).ToList());
}
static void Main(string[] args)
{
TestCopy test = new TestCopy();
test.Age = 30;
test.IDCode = "12333";
test.param = new Param();
test.param.Name = "Dep1";
TestCopy copy = test.Clone() as TestCopy;
Console.WriteLine(copy.Age);
Console.WriteLine(copy.IDCode);
Console.WriteLine(copy.param.Name);
Console.WriteLine("copy change test: ");
test.Age = 60;
test.IDCode = "23333";
test.param.Name = "Dep2";
Console.WriteLine(copy.Age);
Console.WriteLine(copy.IDCode);
Console.WriteLine(copy.param.Name);
TestCopy testDeep = new TestCopy();
testDeep.Age = 30;
testDeep.IDCode = "12333";
testDeep.param = new Param();
testDeep.param.Name = "Dep3";
Console.WriteLine("TestDeepCopy");
TestCopy copyDeep = testDeep.DeepClone();
Console.WriteLine(copyDeep.Age);
Console.WriteLine(copyDeep.IDCode);
Console.WriteLine(copyDeep.param.Name);
Console.WriteLine("deepcopy change test: ");
testDeep.Age = 60;
testDeep.IDCode = "23333";
testDeep.param.Name = "Dep4";
Console.WriteLine(copyDeep.Age);
Console.WriteLine(copyDeep.IDCode);
Console.WriteLine(copyDeep.param.Name);
}
/// <summary>
/// Gets the test details.
/// </summary>
/// <param name="testCopyId">The test copy id.</param>
/// <returns></returns>
public List <QuestionModel> GetTestDetails(int testCopyId)
{
TestCopy testCopy = m_testsService.GetTestCopy(testCopyId);
Test test = m_testsService.GetTestById(testCopy.FK_TestId);
List <QuestionModel> questions = new List <QuestionModel>();
XDocument testCopyDocument = XDocument.Load(new StringReader(testCopy.TestCopyStructure));
// Question list
IEnumerable <XElement> questionElements = testCopyDocument.Descendants("Q");
//Yeu cau moi:
//Nhung bai testCopy trong 1 bai test ko duoc trung nhau
//Neu trung thi random cau hoi va cau tra loi do.
foreach (var questionElement in questionElements)
{
TestQuestion testQuestion = test.TestQuestions.FirstOrDefault(x => x.QuestionId == Convert.ToInt64(questionElement.Attribute("qId").Value));
QuestionModel question = new QuestionModel();
question.Id = Convert.ToInt32(questionElement.Attribute("qOrder").Value);
question.Content = string.Format("{0}. {1}", question.Id, testQuestion.Question.Content);
IEnumerable <XElement> answerElements = questionElement.Elements("A");
question.Answer1 = string.Format("A. {0}", AllAnswerList.Where(a => a.AnswerId ==
Convert.ToInt64(answerElements
.ElementAt(0)
.Attribute("aId")
.Value))
.FirstOrDefault().Content);
question.Answer2 = string.Format("B. {0}", AllAnswerList.Where(a => a.AnswerId ==
Convert.ToInt64(answerElements
.ElementAt(1)
.Attribute("aId")
.Value))
.FirstOrDefault().Content);
question.Answer3 = string.Format("C. {0}", AllAnswerList.Where(a => a.AnswerId ==
Convert.ToInt64(answerElements
.ElementAt(2)
.Attribute("aId")
.Value))
.FirstOrDefault().Content);
question.Answer4 = string.Format("D. {0}", AllAnswerList.Where(a => a.AnswerId ==
Convert.ToInt64(answerElements
.ElementAt(3)
.Attribute("aId")
.Value))
.FirstOrDefault().Content);
questions.Add(question);
}
//foreach (TestQuestion testQuestion in test.TestQuestions)
//{
// XElement questionElement = questionElements.Where(q => Convert.ToInt64(q.Attribute("qId").Value)
// == testQuestion.QuestionId).FirstOrDefault();
// if (questionElement != null)
// {
// QuestionModel question = new QuestionModel();
// question.Id = Convert.ToInt32(questionElement.Attribute("qOrder").Value);
// question.Content = string.Format("{0}. {1}", question.Id, testQuestion.Question.Content);
// IEnumerable<XElement> answerElements = questionElement.Elements("A");
// question.Answer1 = string.Format("A. {0}", AllAnswerList.Where(a => a.AnswerId ==
// Convert.ToInt64(answerElements
// .ElementAt(0)
// .Attribute("aId")
// .Value))
// .FirstOrDefault().Content);
// question.Answer2 = string.Format("B. {0}", AllAnswerList.Where(a => a.AnswerId ==
// Convert.ToInt64(answerElements
// .ElementAt(1)
// .Attribute("aId")
// .Value))
// .FirstOrDefault().Content);
// question.Answer3 = string.Format("C. {0}", AllAnswerList.Where(a => a.AnswerId ==
// Convert.ToInt64(answerElements
// .ElementAt(2)
// .Attribute("aId")
// .Value))
// .FirstOrDefault().Content);
// question.Answer4 = string.Format("D. {0}", AllAnswerList.Where(a => a.AnswerId ==
// Convert.ToInt64(answerElements
// .ElementAt(3)
// .Attribute("aId")
// .Value))
// .FirstOrDefault().Content);
// questions.Add(question);
// }
//}
return(questions.OrderBy(x => x.Id).ToList());
}
/// <summary>
/// Creates the test.
/// </summary>
/// <param name="subjectId">The subject id.</param>
/// <param name="numberOfQuestions">The number of questions.</param>
public Test CreateTest(Test test, int subjectId, List <Tuple <QuestionLevel, int> > numberOfQuestions,
int purpose, int subTest, double moreTime, out string message)
{
int totalQuestionForPerSubtest = numberOfQuestions.Sum(x => x.Item2);
List <Question> questions = new List <Question>(totalQuestionForPerSubtest * subTest);
foreach (Tuple <QuestionLevel, int> question in numberOfQuestions)
{
questions.AddRange(GetRandomQuestionForLevel(subjectId, question.Item1, purpose, question.Item2, subTest));
}
test.CreatedBy = UserService.CurrentUser.CurrentUser.Username;
test.CreatedDate = DateTime.Now;
test.UpdatedBy = test.CreatedBy;
test.UpdatedDate = DateTime.Now;
// create test copy
foreach (Question q in questions)
{
var tq = new TestQuestion();
tq.Question = q;
tq.Test = test;
test.TestQuestions.Add(tq);
}
IList <Question> tempQs = new List <Question>();
for (int count = 0; count < subTest; count++)
{
XDocument structure = new XDocument(new XElement("TestCopy"));
//New Requirement:
//1. Cau hoi trong cac de thi ko duoc trung nhau
//2. Neu ko du cau hoi thi duoc trung nhung phai dao vi tri cau hoi va cau tra loi o cac de.
//questionIdsPerSubtest with Id and Level
var questionIdsPerSubtest = new Dictionary <long, int>();
foreach (Tuple <QuestionLevel, int> question in numberOfQuestions)
{
for (int j = questions.Count - 1; j >= 0; j--)
{
if (questions[j].Level == (int)question.Item1 &&
!questionIdsPerSubtest.Keys.ToList().Exists(x => x == questions[j].QuestionId) &&
questionIdsPerSubtest.Count < totalQuestionForPerSubtest)
{
questionIdsPerSubtest.Add(questions[j].QuestionId, (int)question.Item1);
tempQs.Add(questions[j]);
questions.RemoveAt(j);
var countLevel = questionIdsPerSubtest.Values.Count(x => x == (int)question.Item1);
if (countLevel == question.Item2)
{
break;
}
}
}
}
//if (questionIdsPerSubtest.Count < totalQuestionForPerSubtest)
//{
// for (int i = questions.Count - 1; i >= 0; i--)
// {
// for (int j = tempQs.Count - 1; j >= 0; j--)
// {
// if (questions[i].Level == tempQs[j].Level
// && !questionIdsPerSubtest.Keys.ToList().Exists(x => x == tempQs[j].QuestionId)
// && questionIdsPerSubtest.Count < totalQuestionForPerSubtest)
// {
// questionIdsPerSubtest.Add(tempQs[j].QuestionId, tempQs[j].Level);
// }
// }
// }
//}
for (int i = 0; i < totalQuestionForPerSubtest; i++)
{
List <Answer> answers = m_questionService.GetAnswerOfQuestion(questionIdsPerSubtest.Keys.ElementAt(i));
List <XElement> answerList = new List <XElement>();
for (int j = 0; j < answers.Count; j++)
{
XElement answerElement = new XElement("A", new XAttribute("aOrder", j + 1), new XAttribute("aId", answers[j].AnswerId));
answerList.Add(answerElement);
}
structure.Element("TestCopy")
.Add(new XElement("Q", new XAttribute("qOrder", i + 1), new XAttribute("qId", questionIdsPerSubtest.Keys.ElementAt(i)),
answerList));
}
TestCopy tc = new TestCopy();
tc.Test = test;
tc.TestCopyStructure = structure.ToString();
test.TestCopies.Add(tc);
}
double timeStill = 0;
if (questions.Count > 0)
{
timeStill = questions.Sum(x => x.Time);
}
double realTestTime = (tempQs.Sum(q => q.Time) + timeStill) / subTest;
if (realTestTime > test.Time + moreTime)
{
message = "Thời gian chính xác để hoàn thành bài thi là: " + realTestTime +
"\nThời gian thi do người dùng cài đặt là: " + test.Time +
".\nThời gian chênh lệch: " + Math.Abs(realTestTime - test.Time) +
"\nBạn có muốn tiếp tục tạo đề thi không?";
}
else
{
message = "Thời gian chính xác để hoàn thành bài thi là: " + realTestTime +
"\nThời gian thi do người dùng cài đặt là: " + test.Time +
".\nThời gian chênh lệch: " + Math.Abs(realTestTime - test.Time) +
"\nBạn có muốn tiếp tục tạo đề thi không?";
}
test.TestQuestions.Clear();
foreach (Question q in tempQs)
{
var tq = new TestQuestion();
tq.Question = q;
tq.Test = test;
tq.QuestionId = q.QuestionId;
if (!test.TestQuestions.ToList().Exists(x => x.QuestionId == q.QuestionId))
{
test.TestQuestions.Add(tq);
}
}
return(test);
}
public Test CreateLimitedTest(Test test, List <Question> questions, int subTest, double moreTime, out string message)
{
test.CreatedBy = UserService.CurrentUser.CurrentUser.Username;
test.CreatedDate = DateTime.Now;
test.UpdatedBy = test.CreatedBy;
test.UpdatedDate = DateTime.Now;
foreach (Question q in questions)
{
var tq = new TestQuestion();
tq.Question = q;
tq.Test = test;
test.TestQuestions.Add(tq);
}
// create test copy
List <long> questionIds = questions.Select(q => q.QuestionId).ToList();
Random ran = new Random();
//Toi da 1000 cau
int max = 1000;
for (int count = 0; count < subTest; count++)
{
XDocument structure = new XDocument(new XElement("TestCopy"));
for (int i = 0; i < max; i++)
{
int index = ran.Next(questionIds.Count - 1);
long item = questionIds[i % questionIds.Count];
questionIds[i % questionIds.Count] = questionIds[index];
questionIds[index] = item;
}
for (int i = 0; i < questionIds.Count; i++)
{
List <Answer> answers = m_questionService.GetAnswerOfQuestion(questionIds[i]);
answers = RandomAnswerOrder(answers);
List <XElement> answerList = new List <XElement>();
for (int j = 0; j < answers.Count; j++)
{
XElement answerElement = new XElement("A", new XAttribute("aOrder", j + 1), new XAttribute("aId", answers[j].AnswerId));
answerList.Add(answerElement);
}
structure.Element("TestCopy")
.Add(new XElement("Q", new XAttribute("qOrder", i + 1), new XAttribute("qId", questionIds[i]),
answerList));
}
TestCopy tc = new TestCopy();
tc.Test = test;
tc.TestCopyStructure = structure.ToString();
test.TestCopies.Add(tc);
}
double realTestTime = questions.Sum(q => q.Time);
if (realTestTime > test.Time + moreTime)
{
message = "Thời gian chính xác để hoàn thành bài thi là: " + realTestTime +
"\nThời gian thi do người dùng cài đặt + cấu hình (" + moreTime + " phút): " + (test.Time + moreTime) +
".\nThời gian chênh lệch: " + Math.Abs(realTestTime - (test.Time + moreTime)) +
"\nBạn có muốn tiếp tục tạo đề thi không?";
}
else
{
message = "Thời gian chính xác để hoàn thành bài thi là: " + realTestTime +
"\nThời gian thi do người dùng cài đặt + cấu hình (" + moreTime + " phút): " + (test.Time + moreTime) +
".\nThời gian chênh lệch: " + Math.Abs(realTestTime - (test.Time + moreTime)) +
"\nBạn có muốn tiếp tục tạo đề thi không?";
}
return(test);
}
