public bool AddMCQ(MCQViewModel mcq)
{
if (mcq == null)
{
return(false);
}
var _mcq = new Mcq();
_mapper.Map(mcq, _mcq);
_mcq.CreateOn = DateTime.Now;
_mcq.IsDeleted = false;
_unitOfWork.Repository <Mcq>().Add(_mcq);
_unitOfWork.SaveChanges();
foreach (var item in mcq.Questions)
{
var mcqquestion = new Mcqquestion()
{
McqquestionId = _mcq.Id,
QuestionId = item.Id
};
_unitOfWork.Repository <Mcqquestion>().Add(mcqquestion);
}
_unitOfWork.SaveChanges();
return(true);
}
public bool DeleteMCQ(MCQViewModel mcq)
{
var _mcq = _unitOfWork.Repository <Mcq>().FirstOrDefault(x => x.Id == mcq.Id);
_mcq.IsDeleted = true;
var _mcqQuestion = _unitOfWork.Repository <Mcqquestion>().Where(x => x.McqquestionId == _mcq.Id);
_unitOfWork.Repository <Mcqquestion>().RemoveRange(_mcqQuestion);
_unitOfWork.SaveChanges();
return(true);
}
public IActionResult deleteMCQ([FromBody] MCQViewModel mcq)
{
ResponseViewModel response = new ResponseViewModel();
try
{
response.success = _mcqService.DeleteMCQ(mcq);
}
catch (Exception e)
{
response.success = false;
response.errMsg = e.ToString();
}
return(Json(response));
}
public IActionResult SubmitExam([FromBody] MCQViewModel mcq)
{
ResponseViewModel response = new ResponseViewModel();
try
{
var user = _userManager.GetUserAsync(HttpContext.User).Result;
var _user = _userService.GetUserByUserName(user.UserName);
response.success = true;
response.data = _mcqService.SubmitExam(mcq, Int32.Parse(_user.Id));
}
catch (Exception ex)
{
response.success = false;
response.errMsg = ex.ToString();
}
return(Json(response));
}
public int SubmitExam(MCQViewModel mcq, int userId)
{
double point = 0.0;
var mcqTest = new UserTest()
{
Mcqid = mcq.Id,
UserId = userId,
Point = point,
CreateOn = DateTime.Now
};
_unitOfWork.Repository <UserTest>().Add(mcqTest);
_unitOfWork.SaveChanges();
var _mcq = _unitOfWork.Repository <Mcq>().FirstOrDefault(x => x.Id == mcq.Id);
_mcq.Attempts += 1;
foreach (var question in mcq.Questions)
{
var mcqhistory = new Mcqhistory()
{
Mcqid = mcq.Id,
UserTestId = mcqTest.Id,
CreateOn = DateTime.Now,
QuestionId = question.Id
};
var answer = question.Answers.FirstOrDefault(x => x.DisplayNumber.Value == question.SelectedValue);
if (answer != null)
{
mcqhistory.QuestionAnswerId = answer.Id;
if (question.SelectedValue == question.CorrectAnswer)
{
point += question.Point.Value;
}
_unitOfWork.Repository <Mcqhistory>().Add(mcqhistory);
}
}
mcqTest.Point = point;
_unitOfWork.SaveChanges();
return(mcqTest.Id);
}
