public async Task <Quiz> GetByIdAsync(Guid quizId, string userId)
{
var isPublic = await _quizzesRepository.IsPublicAsync(quizId);
if (!isPublic)
{
var access = await _quizzesRepository.HaveReadAccessToQuizAsync(userId, quizId);
if (!access)
{
return(null);
}
}
var quiz = await _quizzesRepository.GetById(quizId);
var userAccess = await _quizAccessesRepository.GetQuizAccessForUserAsync(userId, quizId);
if (userAccess != null)
{
quiz.IncludeAccess(userAccess.Access);
}
var quizWithOwnerNickName = await _auth0UsersService.QuizItemWithOwnerNickName(quiz);
return(quizWithOwnerNickName);
}
public async Task <LearningQuiz> GetLearningQuizByIdAsync(long id, string userId)
{
var learningQuiz = await _learningQuizzesRepository
.GetAllByUserId(userId)
.Where(q => q.Id == id)
.Include(q => q.Quiz)
.SingleOrDefaultAsync();
if (learningQuiz?.QuizId == null)
{
return(null);
}
var isPublic = await _quizzesRepository.IsPublicAsync(learningQuiz.QuizId.Value);
if (!isPublic)
{
var access = await _quizzesRepository.HaveReadAccessToQuizAsync(userId, learningQuiz.QuizId.Value);
if (!access)
{
return(null);
}
}
await _auth0UsersService.QuizItemWithOwnerNickName(learningQuiz.Quiz);
return(learningQuiz);
}
public async Task <object> GetRandomQuestionsWithQuizByQuizIdAsync(Guid id, string userId)
{
var isPublic = await _quizzesRepository.IsPublicAsync(id);
if (!isPublic)
{
var haveReadAccess = await _quizzesRepository.HaveReadAccessToQuizAsync(userId, id);
if (!haveReadAccess)
{
return(null);
}
}
var quiz = await _quizzesRepository.GetById(id);
await _auth0UsersService.QuizItemWithOwnerNickName(quiz);
var randomQuestionsQuery = RandomQuizQuestionsQuery(id);
var randomQuestions = await RandomQuizQuestions(randomQuestionsQuery, quiz.QuestionsInSolvingQuiz);
var questionsInDatabase = await randomQuestionsQuery.CountAsync();
var creationTime = CurrentTime;
return(new {
SolvingQuiz = new {
Quiz = quiz,
QuestionsInDatabase = questionsInDatabase,
QuestionsInSolvingQuiz = randomQuestions.Count,
Questions = randomQuestions,
CreatedTime = creationTime
},
SolvedQuizTemplate = new UserSolvedQuiz {
QuizId = quiz.Id,
CreatedTime = creationTime,
SolvingTime = 0,
MaxSolvingTime = quiz.MillisecondsInSolvingQuiz,
UserSolvedQuestions = randomQuestions
.Select(q => new UserSolvedQuizQuestion {
QuestionId = q.Id
})
.ToList()
}
});
}
// Read methods
public async Task <IList <Answer> > GetQuestionAnswersAsync(long questionId, string userId, long?maxVersionTime = null)
{
var question = await _questionsRepository.GetById(questionId);
var access = await _quizzesRepository.HaveReadAccessToQuizAsync(userId, question.QuizId);
if (!access)
{
return(null);
}
return(await _answersRepository
.GetAllByQuestionId(questionId, maxVersionTime)
.Include(a => a.Versions)
.Select(a => a.FlatVersionProps(maxVersionTime))
.ToListAsync());
}
