private string CheckAns()
{
int userAns = Judge.RIGHT;
if (right.Checked == true)
{
userAns = Judge.RIGHT;
}
else if (wrong.Checked == true)
{
userAns = Judge.WRONG;
}
if (judge.isDone == 0)
{
QuestionHistory.SaveProblemIsDone(judge.id, QuestionHistory.TYPE_CHOICE);
}
if (userAns == judge.ans)
{
QuestionHistory.UpdateHistory(judge, QuestionHistory.RESULT_RIGHT);
MyApp.judgeCount++;
return("");
}
else
{
QuestionHistory.UpdateHistory(judge, QuestionHistory.RESULT_WRONG);
MyApp.judgeCount++;
MyApp.judgeWrongCount++;
return("你的选择是" + TranslateAns(userAns) + "\n\n" + "正确答案为" + TranslateAns(judge.ans));
}
}
// TODO
public void RemoveQuestion(string id, string bankname)
{
// Find history by id
QuestionHistory history = Histories.Find(his => his.Id == id);
Debug.Log(JsonConvert.SerializeObject(history, Formatting.Indented));
// Modify the memory strength and date
history.LastAttemptDate = DateTime.Now.AddDays(Properties.Instance.ADD_DAYS).ToShortDateString().ToString();
if (history.LastIsCorrect)
{
history.MemoryStrength += 2;
}
else
{
history.LastIsCorrect = true;
history.MemoryStrength++;
}
// Update to db
fb.UpdateHistory(Username, bankname, history); // TODO change to generic bankname
// Remove from history list
Histories.Remove(history);
}
// Forgetting algorithm
private double CalculateForgettingRate(QuestionHistory history)
{
double result = 0.0;
Question question = QuestionBank[history.Id];
Debug.Log(JsonConvert.SerializeObject(question));
if (history.MemoryStrength != 0)
{
DateTime dt = DateTime.Now;
DateTime lastAttempt = DateTime.Parse(history.LastAttemptDate);
int timeInterval = dt.AddDays(Properties.Instance.ADD_DAYS).Subtract(lastAttempt).Days;
result = Math.Pow(Math.E, (-timeInterval / Convert.ToDouble(history.MemoryStrength)));
}
Debug.Log("<color=orange>Memory retention rate: " + result);
return(result);
/*
* Question question = QuestionBank[id];
* Debug.Log(JsonConvert.SerializeObject(question));
* // <color=orange>" + log + "</color>"
* Debug.Log("<color=orange>Memory strength: " + CalculateForgettingRate(Histories[id]) + "</color>");
*/
}
private void UpdateHistoryList()
{
long choiceCount = QuestionHistory.GetHisotryCount(QuestionHistory.TYPE_CHOICE);
long multipleChoiceCount = QuestionHistory.GetHisotryCount(QuestionHistory.TYPE_MULTIPLECHOICE);
long judgeCount = QuestionHistory.GetHisotryCount(QuestionHistory.TYPE_JUDGE);
long sum = choiceCount + multipleChoiceCount + judgeCount;
long choiceWrongCount = QuestionHistory.GetWrongHisotryCount(QuestionHistory.TYPE_CHOICE);
long multipleChoiceWrongCount = QuestionHistory.GetWrongHisotryCount(QuestionHistory.TYPE_MULTIPLECHOICE);
long judgeWrongCount = QuestionHistory.GetWrongHisotryCount(QuestionHistory.TYPE_JUDGE);
long wrongSum = choiceWrongCount + multipleChoiceWrongCount + judgeWrongCount;
this.historyListView.BeginUpdate();
int width = historyListView.Width;
for (int i = 0; i < menus.Count; i++)
{
historyListView.Columns.Add(menus[i], width * widths[i] / 100, textAligns[i]);
}
ListViewItem item = new ListViewItem
{
Text = "总做题数"
};
item.SubItems.Add(sum.ToString());
item.SubItems.Add(wrongSum.ToString());
historyListView.Items.Add(item);
ListViewItem item2 = new ListViewItem
{
Text = "单选题"
};
item2.SubItems.Add(choiceCount.ToString());
item2.SubItems.Add(choiceWrongCount.ToString());
historyListView.Items.Add(item2);
ListViewItem item3 = new ListViewItem
{
Text = "多选题"
};
item3.SubItems.Add(multipleChoiceCount.ToString());
item3.SubItems.Add(multipleChoiceWrongCount.ToString());
historyListView.Items.Add(item3);
ListViewItem item4 = new ListViewItem
{
Text = "判断题"
};
item4.SubItems.Add(judgeCount.ToString());
item4.SubItems.Add(judgeWrongCount.ToString());
historyListView.Items.Add(item4);
this.historyListView.EndUpdate();
}
public void UpdateHistory(string username, string bankname, QuestionHistory history)
{
string path = endpoint + "History/" + username + "/" + bankname + "/" + history.Id;
RestClient.Put(path + "/.json", history).Then(response =>
{
Debug.Log("Updated the history record: " + history.Id);
}).Catch(err =>
{
Debug.Log("Error: " + err.Message);
});
Debug.Log("Updated History");
}
public void ReorderQuestion(string id)
{
Debug.Log("Reorder question: " + id);
// Find history by id
QuestionHistory history = Histories.Find(his => his.Id == id);
history.LastIsCorrect = false;
Debug.Log("Reorder: Update history to false: " + JsonConvert.SerializeObject(history, Formatting.Indented));
// Remove from history list
Histories.Remove(history);
Histories.Add(history);
}
private void UpdateData()
{
if (examType == QuestionHistory.EXAM_TYPE_UNDO)
{
list.AddRange(Choice.LoadUndoChoice(100));
list.AddRange(QuestionHistory.LoadChoice(QuestionHistory.EXAM_TYPE_WRONG, 10));
}
else if (examType == QuestionHistory.EXAM_TYPE_WRONG)
{
list.AddRange(QuestionHistory.LoadChoice(QuestionHistory.EXAM_TYPE_WRONG, 100));
}
else if (examType == QuestionHistory.EXAM_TYPE_REVIEW)
{
list.AddRange(QuestionHistory.LoadChoice(QuestionHistory.EXAM_TYPE_REVIEW, 100));
}
list = Util.RandomSortList(list);
index = 0;
}
private void UpdateData()
{
switch (examType)
{
case QuestionHistory.EXAM_TYPE_UNDO:
list.AddRange(Judge.LoadUndoChoice(100));
list.AddRange(QuestionHistory.LoadJudge(QuestionHistory.EXAM_TYPE_WRONG, 10));
break;
case QuestionHistory.EXAM_TYPE_WRONG:
list.AddRange(QuestionHistory.LoadJudge(QuestionHistory.EXAM_TYPE_WRONG, 100));
break;
case QuestionHistory.EXAM_TYPE_REVIEW:
list.AddRange(QuestionHistory.LoadJudge(QuestionHistory.EXAM_TYPE_REVIEW, 100));
break;
}
list = Util.RandomSortList(list);
index = 0;
}
private string CheckAns()
{
string userAns = "";
if (aska.Checked == true)
{
userAns = "A";
}
else if (askb.Checked == true)
{
userAns = "B";
}
else if (askc.Checked == true)
{
userAns = "C";
}
else if (askd.Checked == true)
{
userAns = "D";
}
if (choice.isDone == 0)
{
QuestionHistory.SaveProblemIsDone(choice.id, QuestionHistory.TYPE_CHOICE);
}
if (userAns.Equals(choice.ans))
{
QuestionHistory.UpdateHistory(list[index], QuestionHistory.RESULT_RIGHT);
MyApp.choiceCount++;
return("");
}
else
{
QuestionHistory.UpdateHistory(list[index], QuestionHistory.RESULT_WRONG);
MyApp.choiceCount++;
MyApp.choiceWrongCount++;
return("你的选择是" + userAns + "\n\n" + "正确答案为" + choice.ans);
}
}
public async Task <ActionResult> CreateQuestionHistory(ResponseQuestionsViewModel oRVM)
{
TempData["UserMessage"] = new MessageVM()
{
IsSuccessful = false, Title = "Error!", Message = "Something went wrong."
};
if (Helpers.Helpers.IsStaff(User))
{
return(RedirectToAction("Index", "Staff"));
}
if (!ModelState.IsValid)
{
return(View(oRVM));
}
QuestionHistoryViewModel oQuestionHistoryVM = oRVM.QuestionHistoryVM;
Course oCourse = db.Courses.Include(c => c.QuestionHistorys).SingleOrDefault(c => c.CourseId == oQuestionHistoryVM.CourseId);
if (oCourse == null)//Error. Course DNE.
{
throw new ArgumentException("CreateQuestionHistory(ResponseQuestionsViewModel oRVM) - Course DNE.");
}
Student oStudent = db.Students.SingleOrDefault(s => s.StudentId == oQuestionHistoryVM.StudentId && s.Courses.Any(c => c.CourseId == oCourse.CourseId));
if (oStudent == null)//Error. Student DNE OR doesn't take this Course.
{
throw new ArgumentException("CreateQuestionHistory(ResponseQuestionsViewModel oRVM) - Student DNE.");
}
Parent oParent = db.Parents.SingleOrDefault(p => p.ParentId == SessionSingleton.Current.ParentId && p.Children.Any(s => s.StudentId == oStudent.StudentId));
if (oParent == null) //Error. This Student/Child doesn't belong to this Parent.
{
throw new ArgumentException("CreateQuestionHistory(ResponseQuestionsViewModel oRVM) - Parent DNE.");
}
QuestionHistory oQuestionHistory = new QuestionHistory()
{
//-- Default values --
//-- end of Default values --
//-- VM to Model --
QuestionTxt = oQuestionHistoryVM.QuestionTxt,
Parent = oParent,
Student = oStudent,
Course = oCourse
//-- end of VM to Model --
};
//oParent.QuestionHistorys.Add(oQuestionHistory);
//oStudent.QuestionHistorys.Add(oQuestionHistory);
oCourse.QuestionHistorys.Add(oQuestionHistory);
db.QuestionHistorys.Add(oQuestionHistory);
try
{
if (db.SaveChanges() <= 0)
{
return(View(oQuestionHistoryVM));
}
}
catch (Exception e)
{
return(View(oQuestionHistoryVM));
}
TempData["UserMessage"] = new MessageVM()
{
IsSuccessful = true, Title = "Success!", Message = "Your question for this course has been successfully added."
};
return(RedirectToAction("Questions", new { ParentId = oQuestionHistoryVM.ParentId, StudentId = oQuestionHistoryVM.StudentId, CourseId = oQuestionHistoryVM.CourseId }));
}
public async Task <ActionResult> EditQuestionHistory(ResponseQuestionsViewModel oRVM)
{
TempData["UserMessage"] = new MessageVM()
{
IsSuccessful = false, Title = "Error!", Message = "Something went wrong."
};
//This is for Staffer use also so commented out:
//if (Helpers.Helpers.IsStaff(User))
// return RedirectToAction("Index", "Staff");
if (!ModelState.IsValid)
{
return(View(oRVM));
}
QuestionHistoryViewModel oQuestionHistoryVM = oRVM.QuestionHistoryVM;
Course oCourse = db.Courses.Include(c => c.QuestionHistorys).SingleOrDefault(c => c.CourseId == oQuestionHistoryVM.CourseId);
if (oCourse == null)//Error. Course DNE.
{
throw new ArgumentException("EditQuestionHistory(ResponseQuestionsViewModel oRVM) - Course DNE.");
}
Student oStudent = db.Students.SingleOrDefault(s => s.StudentId == oQuestionHistoryVM.StudentId && s.Courses.Any(c => c.CourseId == oCourse.CourseId));
if (oStudent == null)//Error. Student DNE OR doesn't take this Course.
{
throw new ArgumentException("EditQuestionHistory(ResponseQuestionsViewModel oRVM) - Student DNE.");
}
Parent oParent = db.Parents.SingleOrDefault(p => p.ParentId == oQuestionHistoryVM.ParentId && p.Children.Any(s => s.StudentId == oStudent.StudentId));
if (oParent == null) //Error. This Student/Child doesn't belong to this Parent.
{
throw new ArgumentException("EditQuestionHistory(ResponseQuestionsViewModel oRVM) - Parent DNE.");
}
//-- QuestionHistory --
QuestionHistory oQuestionHistory = db.QuestionHistorys.SingleOrDefault(qh => qh.QuestionHistoryId == oQuestionHistoryVM.QuestionHistoryId);
if (oQuestionHistory == null) //Error. This Question DNE.
{
throw new ArgumentException("EditQuestionHistory(ResponseQuestionsViewModel oRVM) - QuestionHistory DNE.");
}
oQuestionHistory.QuestionTxt = oQuestionHistoryVM.QuestionTxt;
//-- end of QuestionHistory --
try
{
if (db.SaveChanges() <= 0)
{
return(View(oQuestionHistoryVM));
}
}
catch (Exception e)
{
return(View(oQuestionHistoryVM));
}
TempData["UserMessage"] = new MessageVM()
{
IsSuccessful = true, Title = "Success!", Message = "Your question for this course has been successfully updated."
};
return(RedirectToAction("Parent", "Staff", new { queryvalues = oQuestionHistoryVM.ParentId }));//, StudentId = oQuestionHistoryVM.StudentId, CourseId = oQuestionHistoryVM.CourseId
}