private List <ActivatedSubject.Question> RandomQuestion(ActivatedSubject.ExamSuiteWithQuestion data, int randomCount)
{
seed = 0;
List <ActivatedSubject.Question> QQ = new List <ViewModels.ExamBankModelsBack.ActivatedSubject.Question>();
int remainQ = randomCount;
var shuffleQ = this.RandomData <ActivatedSubject.QuestionPool>(data.Questions);
for (int i = 0; i < randomCount; i++)
{
var pickQ = shuffleQ.FirstOrDefault();
if (pickQ.GroupCount <= remainQ)
{
if (pickQ.GroupCount > 1)
{
var grouped = shuffleQ.Where(x => x.GroupId == pickQ.GroupId).OrderBy(x => x.QuestionNumber);
QQ.AddRange(grouped);
foreach (var qg in grouped)
{
shuffleQ.Remove(shuffleQ.Where(x => x._id == qg._id).FirstOrDefault());
}
}
else
{
QQ.Add(pickQ);
shuffleQ.Remove(shuffleQ.Where(x => x._id == pickQ._id).FirstOrDefault());
}
remainQ -= pickQ.GroupCount;
}
}
return(QQ);
}
public List <ActivatedSubject.ExamSuiteWithQuestion> MapQuestion(List <ActivatedSubject.ExamSuite> examSuiteList)
{
var coltn = helper.GetCollection <ActivatedSubject.Question>(ActivatedSubject_Question);
List <ActivatedSubject.ExamSuiteWithQuestion> examQuestion = new List <ActivatedSubject.ExamSuiteWithQuestion>();
foreach (var item in examSuiteList)
{
ActivatedSubject.ExamSuiteWithQuestion examQ = new ActivatedSubject.ExamSuiteWithQuestion
{
_id = item._id,
TitleName = item.TitleName,
TitleCode = item.TitleCode,
CreateDateTime = item.CreateDateTime
};
List <ActivatedSubject.QuestionPool> qlist = new List <ActivatedSubject.QuestionPool>();
//foreach (var qid in item.QuestionIds)
//{
// var coltn = helper.GetCollection<ActivatedSubject.Question>(ActivatedSubject_Question);
// var qResult = coltn.Find(x => x._id == qid).FirstOrDefault();
// if (qResult != null)
// {
// //var qResult = this.helper.GetQuestion(result.ToList(), item.TitleCode).FirstOrDefault();
// //mapping
// ActivatedSubject.QuestionPool qpool = new ActivatedSubject.QuestionPool
// {
// QuestionNumber = qResult.QuestionNumber,
// isAllowRandomChoice = qResult.isAllowRandomChoice,
// Detail = qResult.Detail,
// Choices = qResult.Choices,
// GroupId = qResult.GroupId,
// };
// qlist.Add(qpool);
// }
//}
var qResult = coltn.Find(x => item.QuestionIds.Contains(x._id)).ToList().Select(x => new ActivatedSubject.QuestionPool
{
_id = x._id,
Assets = x.Assets,
CreateDateTime = x.CreateDateTime,
QuestionNumber = x.QuestionNumber,
IsAllowRandomChoice = !x.IsAllowRandomChoice, //HACK : meaning of word is wrong
Detail = x.Detail,
Choices = x.Choices,
GroupId = x.GroupId,
//ExamCode = item.TitleCode,
ExamCode = item._id,
});
examQ.Questions = qResult.ToList();
//map qGroup
//var grouped = examQ.Questions.GroupBy(x => x.GroupId);
foreach (var group in examQ.Questions.GroupBy(x => x.GroupId))
{
if (group.Key == null)
{
foreach (var q in group)
{
q.GroupCount = 1;
}
}
else
{
int count = group.Count();
foreach (var q in group)
{
q.GroupCount = count;
}
}
}
examQuestion.Add(examQ);
}
return(examQuestion);
}
