//Delete Question with all Options
public bool DeleteQuestion(int quesData)
{
bool result = false;
using (myProjectEntities context = new myProjectEntities())
{
tblQuizQuestion quesDetail = context.tblQuizQuestions.Where(w => w.PK_Question_id == quesData).FirstOrDefault();
float m1 = (float)quesDetail.marks;
tblQuizDetail quizDetail = context.tblQuizDetails.Where(a => a.PK_Quiz_id == quesDetail.FK_Quiz_id).FirstOrDefault();
float m2 = (float)quizDetail.quiz_weightage - m1;
quizDetail.quiz_weightage = m2;
context.Entry(quizDetail).State = EntityState.Modified;
context.SaveChanges();
int q = context.spDeleteQuestionWithOption(quesData);
if (q != 0)
{
result = true; //set return to true
}
}
return(result);
}
//Enter Feedback
public bool createFeedbackAnswer(FeedbackAnswer feedModel)
{
bool result = false;
float fValue = 0;
using (myProjectEntities context = new myProjectEntities())
{
Mapper.CreateMap <FeedbackAnswer, tblFeedbackResult>();
tblFeedbackResult newFeed = Mapper.Map <FeedbackAnswer, tblFeedbackResult>(feedModel);
context.tblFeedbackResults.Add(newFeed);
context.SaveChanges();
var valueFeed = context.tblFeedbackResults.Where(q => q.FK_Feedback_id == feedModel.FK_Feedback_id).Select(q => q.feedback_answer).AsEnumerable();
float d = float.Parse(valueFeed.Aggregate((a, b) => a + b).ToString());
int count = valueFeed.Count();
fValue = d / count;
tblFeedback f = context.tblFeedbacks.Where(q => q.PK_Feedback_id == feedModel.FK_Feedback_id).FirstOrDefault();
f.feedback_value = fValue;
context.Entry(f).State = EntityState.Modified;
context.SaveChanges();
}
return(result);
}
//Update existing Questions
public bool UpdateQuestion(questionModel quesData)
{
bool result = false;
using (myProjectEntities context = new myProjectEntities()) //update weightage
{
tblQuizQuestion quesDetail = context.tblQuizQuestions.Where(w => w.PK_Question_id == quesData.PK_Question_id).FirstOrDefault();
float m1 = (float)quesDetail.marks;
tblQuizDetail quizDetail = context.tblQuizDetails.Where(a => a.PK_Quiz_id == quesData.FK_Quiz_id).FirstOrDefault();
float m2 = (float)quizDetail.quiz_weightage - m1;
quizDetail.quiz_weightage = m2 + (float)quesData.marks;
context.Entry(quizDetail).State = EntityState.Modified;
context.SaveChanges();
}
using (myProjectEntities context = new myProjectEntities())
{
Mapper.CreateMap <questionModel, tblQuizQuestion>();
tblQuizQuestion newQues = Mapper.Map <questionModel, tblQuizQuestion>(quesData);
context.Entry(newQues).State = EntityState.Modified;
context.SaveChanges();
}
if (quesData.question_type == "Optional" || quesData.question_type == "Multiple Choice")
{
using (myProjectEntities context = new myProjectEntities())
{
List <tblQuizOption> newOpt = context.tblQuizOptions.Where(s => s.FK_Question_id == quesData.PK_Question_id).ToList();
foreach (optionModel item in quesData.optionModel)
{
foreach (tblQuizOption item1 in newOpt)
{
if (item.PK_Option_id == item1.PK_Option_id)
{
item1.isAnswer = item.isAnswer;
}
}
}
context.SaveChanges();
}
}
result = true;
return(result);
//This is to update just the Question i.e. without option model
//Mapper.CreateMap<questionModel, tblQuizQuestion>();
//tblQuizQuestion s = Mapper.Map<questionModel, tblQuizQuestion>(quesData);
//context.Entry(s).State = EntityState.Modified;
//int q = context.SaveChanges();
//if (q == 1)
// result = true;
//return result;
}
//Update existing Quiz + Change the status to delete the quiz
public bool UpdateQuiz(quizModel quizData)
{
bool result = false;
using (myProjectEntities context = new myProjectEntities())
{
Mapper.CreateMap <quizModel, tblQuizDetail>();
tblQuizDetail s = Mapper.Map <quizModel, tblQuizDetail>(quizData);
context.Entry(s).State = EntityState.Modified;
int q = context.SaveChanges();
if (q == 1)
{
result = true;
}
return(result);
}
}
//Update Options
public bool UpdateOption(optionModel optionData)
{
bool result = false;
using (myProjectEntities context = new myProjectEntities())
{
Mapper.CreateMap <optionModel, tblQuizOption>();
tblQuizOption s = Mapper.Map <optionModel, tblQuizOption>(optionData);
context.Entry(s).State = EntityState.Modified;
int q = context.SaveChanges();
if (q == 1)
{
result = true;
}
return(result);
}
}
//Update Lecture data
public bool updateLecture(lectureModel lectureData)
{
bool result = false;
using (myProjectEntities context = new myProjectEntities())
{
Mapper.CreateMap <lectureModel, tblLecture>();
tblLecture s = Mapper.Map <lectureModel, tblLecture>(lectureData);
context.Entry(s).State = EntityState.Modified;
int q = context.SaveChanges();
if (q == 1)
{
result = true;
}
return(result);
}
}
public bool createFeedAnswer(int studentId, int lectureId, float answer)
{
bool result = false;
float fValue = 0;
using (myProjectEntities context = new myProjectEntities())
{
int q3 = 0;
var feedId = context.tblFeedbacks.Where(q => q.FK_Lecture_id == lectureId).FirstOrDefault();
FeedbackAnswer feedModel = new FeedbackAnswer();
feedModel.feedback_answer = answer;
feedModel.feedback_date = System.DateTime.Now;
feedModel.FK_Feedback_id = Convert.ToInt32(feedId.PK_Feedback_id);
feedModel.FK_Student_id = studentId;
Mapper.CreateMap <FeedbackAnswer, tblFeedbackResult>();
tblFeedbackResult newFeed = Mapper.Map <FeedbackAnswer, tblFeedbackResult>(feedModel);
context.tblFeedbackResults.Add(newFeed);
q3 = context.SaveChanges();
//Now update feedback value in tblFeedback
//This is because after every submission there is change in the overall feedback value
if (q3 != 0)
{
var valueFeed = context.tblFeedbackResults.Where(q => q.FK_Feedback_id == feedModel.FK_Feedback_id).Select(q => q.feedback_answer).AsEnumerable();
float d = float.Parse(valueFeed.Aggregate((a, b) => a + b).ToString());
int count = valueFeed.Count();
fValue = d / count;
tblFeedback f = context.tblFeedbacks.Where(q => q.PK_Feedback_id == feedModel.FK_Feedback_id).FirstOrDefault();
f.feedback_value = fValue;
context.Entry(f).State = EntityState.Modified;
q3 = context.SaveChanges();
if (q3 != 0)
{
result = true;
}
}
}
return(result);
}
//Updated
public int Question_Create(questionModel quesData)
{
int result = 0;
using (myProjectEntities context = new myProjectEntities())
{
Mapper.CreateMap <questionModel, tblQuizQuestion>();
tblQuizQuestion newQues = Mapper.Map <questionModel, tblQuizQuestion>(quesData);
if (quesData.question_type == "Optional" || quesData.question_type == "Multiple Choice")//Check is not options
{
List <tblQuizOption> newOpt = new List <tblQuizOption>();
Mapper.CreateMap <optionModel, tblQuizOption>();
foreach (optionModel opt in quesData.optionModel)
{
tblQuizOption o = Mapper.Map <optionModel, tblQuizOption>(opt);
newOpt.Add(o);
}
newQues.tblQuizOptions = newOpt.ToList();
}
context.tblQuizQuestions.Add(newQues); //Execute the add function
int q = context.SaveChanges();
if (q > 0)
{
result = newQues.PK_Question_id; //set return to true
}
tblQuizDetail quizDetail = context.tblQuizDetails.Where(a => a.PK_Quiz_id == newQues.FK_Quiz_id).FirstOrDefault();
quizDetail.quiz_weightage = quizDetail.quiz_weightage + (float)newQues.marks;
context.Entry(quizDetail).State = EntityState.Modified;
context.SaveChanges();
}
return(result);
}
