public virtual async Task <Question> ValidateAsync(Question question)
{
if (question == null)
{
throw new ArgumentNullException(nameof(question));
}
var user = await Context.GetCurrentUserAsync();
var model = await GetQuestionModelAsync(question.Id);
var specification =
new QuestionsForStudents() &
new QuestionsByTestId(question.TestId) &
new QuestionsByStudentId(user.Id, false);
if (specification.IsSatisfiedBy(model) == false)
{
throw ExceptionHelper.CreatePublicException("Указанный вопрос недоступен или уже пройден.");
}
var hash = await HashComputer.ComputeForQuestionAsync(model);
if (string.Equals(hash, question.Hash, StringComparison.InvariantCulture) == false)
{
throw ExceptionHelper.CreatePublicException("Указанный вопрос недоступен.");
}
return(Mapper
.Map <Question>(model)
.SetRight(true));
}
public async Task <PagedData <Question> > GetQuestionsAsync(FilterQuestion filter)
{
var user = await Context.GetCurrentUserAsync();
if (user.IsAdmin())
{
var specification =
new QuestionsByTestId(filter.TestId) &
new QuestionsByThemeId(filter.ThemeId);
var(count, questions) = await _repositoryQuestion.FindPaginatedAsync(specification, filter);
return(new PagedData <Question>(Mapper.Map <List <Question> >(questions), count));
}
if (user.IsLecturer())
{
var specification =
new QuestionsByTestId(filter.TestId) &
new QuestionsByThemeId(filter.ThemeId) &
new QuestionsByLecturerId(user.Id);
var(count, questions) = await _repositoryQuestion.FindPaginatedAsync(specification, filter);
return(new PagedData <Question>(Mapper.Map <List <Question> >(questions), count));
}
if (user.IsStudent())
{
var specification =
new QuestionsForStudents() &
new QuestionsByTestId(filter.TestId) &
new QuestionsByThemeId(filter.ThemeId) &
new QuestionsByStudentId(user.Id, filter.Passed);
var(count, questions) = await _repositoryQuestion.FindPaginatedAsync(specification, filter);
return(new PagedData <Question>(Mapper.Map <List <Question> >(questions), count));
}
throw ExceptionHelper.NoAccess();
}
