public async Task <GameData> AnswerQuestion(int userId, int questionId, int answerId)
{
GameData gameData = new GameData();
try
{
Answer answer = await repo.GetAnswer(answerId);
User user = await repo.GetUser(userId);
if (answer.IsCorrect)
{
user.Score += answer.Point;
}
gameData.User = user;
gameData.AnswerIsCorrect = answer.IsCorrect;
UserQuestionAnswer userQuestionAnswer = new UserQuestionAnswer()
{
UserId = userId,
QuestionId = questionId,
AnswerId = answer.Id
};
await repo.AddUserQuestionAnswer(userQuestionAnswer);
await repo.Save();
}
catch (Exception ex)
{
gameData.Message = "Something went wrong!";
}
return(gameData);
}
public async Task <int> AddAsync(UserQuestionAnswer userQuestionAnswer)
{
await _context.UserQuestionAnswers.AddAsync(userQuestionAnswer);
await _context.SaveChangesAsync();
return(userQuestionAnswer.Id);
}
private void UpdateObject(UserQuestionAnswer _newUserQuestionAnswer, ref UserQuestionAnswer _oldUserQuestionAnswer)
{
try
{
foreach (PropertyInfo UserQuestionAnswerPropInfo in _newUserQuestionAnswer.GetType().GetProperties().ToList())
{
_oldUserQuestionAnswer.GetType().GetProperty(UserQuestionAnswerPropInfo.Name).SetValue(_oldUserQuestionAnswer, _newUserQuestionAnswer.GetType().GetProperty(UserQuestionAnswerPropInfo.Name).GetValue(_newUserQuestionAnswer));
}
}
catch (Exception e)
{
Console.WriteLine(e);
throw;
}
}
public async Task <ActionResult> Solve(int?id)
{
if (id == null)
{
return(View("Error"));
}
var test = await db.Tests.FindAsync(id);
if (test == null)
{
return(View("Error"));
}
var u = db.Users.Find(User.Identity.GetUserId());
var generated = new GeneratedTest()
{
Date = DateTime.Now, Score = null, User = u, Test = test
};
db.GeneratedTests.Add(generated);
var questions = test.Questions.ToList();
questions.Shuffle(new Random());
var testquestions = new List <Question>();
for (int i = 0; i <= test.QuestionLimit - 1; i++)
{
if (i >= questions.Count)
{
break;
}
var questionanswer = new UserQuestionAnswer()
{
Question = questions[i]
};
db.UserQuestionAnswers.Add(questionanswer);
questionanswer.GeneratedTest = generated;
testquestions.Add(questions[i]);
}
await db.SaveChangesAsync();
return(View(new TestSolveViewModel()
{
GeneratedId = generated.Id,
Name = test.Name,
CourseId = test.Course.Id,
Questions = testquestions
}));
}
public UserQuestionAnswer AddNewUserQuestionAnswer(UserQuestionAnswer _UserQuestionAnswer)
{
try
{
using (var context = new VeraEntities())
{
context.UserQuestionAnswer.Add(_UserQuestionAnswer);
int numOfInserted = context.SaveChanges();
return(numOfInserted > 0 ? _UserQuestionAnswer : null);
}
}
catch (Exception)
{
throw;
}
}
//POST User Answers
public async Task <IActionResult> SaveAnswers([Bind("Id,CorrectAnswer")] IEnumerable <Question> question, int quizId)
{
foreach (Question questionResult in question)
{
if (questionResult.CorrectAnswer != 0 && questionResult.Id != 0)
{
var user = await GetUserAsync();
var userAnswer = new UserQuestionAnswer
{
QuestionId = questionResult.Id,
AnswerKeyId = questionResult.CorrectAnswer,
UserId = user.Id
};
_context.Add(userAnswer);
await _context.SaveChangesAsync();
}
}
return(RedirectToAction(nameof(QuizResults), new { id = quizId }));
}
public UserQuestionAnswer UpdateUserQuestionAnswer(UserQuestionAnswer _UserQuestionAnswer)
{
try
{
using (var context = new VeraEntities())
{
var oldUserQuestionAnswer = context.UserQuestionAnswer.FirstOrDefault(u => u.Id == _UserQuestionAnswer.Id);
if (oldUserQuestionAnswer != null)
{
UpdateObject(_UserQuestionAnswer, ref oldUserQuestionAnswer);
var numberOfUpdatedUserQuestionAnswer = context.SaveChanges();
return(numberOfUpdatedUserQuestionAnswer > 0 ? _UserQuestionAnswer : null);
}
return(null);
}
}
catch (Exception e)
{
Console.WriteLine(e);
throw;
}
}
