private Dictionary <int, int> CollectAnswers(TakenQuiz takenQuiz, out List <QuestionPlayViewModel> questionsFromHistory)
{
Dictionary <int, int> result = new Dictionary <int, int>();
questionsFromHistory = new List <QuestionPlayViewModel>();
var userAnswers = takenQuiz.UsersAnswers;
foreach (var item in userAnswers)
{
var questionId = item.AnswerDefinition.QuestionDefinition.Id;
result.Add(questionId, item.AnswerDefinitionId);
var question = this.Db.QuestionsDefinitions
.AllWithDeleted()
.Where(q => q.Id == questionId)
.Project()
.To <QuestionPlayViewModel>()
.FirstOrDefault();
questionsFromHistory.Add(question);
}
return(result);
}
private int SaveResult(int quizId, Dictionary <int, int> selectedAnswers, int scorePercentage)
{
var user = this.User.Identity.GetUserId();
TakenQuiz takenQuiz = new TakenQuiz();
takenQuiz.UserId = user;
takenQuiz.QuizDefinitionId = quizId;
foreach (var item in selectedAnswers)
{
var answerId = item.Value;
UsersAnswer givenAnswer = new UsersAnswer();
givenAnswer.AnswerDefinitionId = answerId;
givenAnswer.TakenQuiz = takenQuiz;
this.Db.UsersAnswers.Add(givenAnswer);
}
takenQuiz.Score = scorePercentage;
this.Db.TakenQuizzes.Add(takenQuiz);
this.Db.SaveChanges();
return(takenQuiz.Id);
}
