private PassedQuestionResult GetQuestionStatus(AnswerOnTestQuestion answer)
{
if (!answer.Time.HasValue)
{
return PassedQuestionResult.NotPassed;
}
return answer.Points > 0
? PassedQuestionResult.Success
: PassedQuestionResult.Error;
}
private void SaveAnswerOnTestQuestion(AnswerOnTestQuestion answerOnTestQuestion)
{
using (var repositoriesContainer = new LmPlatformRepositoriesContainer())
{
repositoriesContainer.RepositoryFor<AnswerOnTestQuestion>().Save(answerOnTestQuestion);
repositoriesContainer.ApplyChanges();
}
}
private void ProcessOneVariantAnswer(IEnumerable<Answer> userAnswers, Question question, AnswerOnTestQuestion answerOntestQuestion)
{
if (userAnswers.Count(answer => answer.СorrectnessIndicator > 0) != 1)
{
throw new InvalidDataException("Пользователь должен указать 1 правильный ответ");
}
Answer correctAnswer = question.Answers.Single(answer => answer.СorrectnessIndicator > 0);
if (correctAnswer.Id == userAnswers.Single(answer => answer.СorrectnessIndicator > 0).Id)
{
answerOntestQuestion.Points = question.ComlexityLevel;
}
}
private void ProcessManyVariantsAnswer(IEnumerable<Answer> userAnswers, Question question, AnswerOnTestQuestion answerOntestQuestion)
{
if (userAnswers.Count(answer => answer.СorrectnessIndicator > 0) == 0)
{
throw new InvalidDataException("Пользователь должен указать хотя бы 1 правильный ответ");
}
IEnumerable<Answer> correctAnswers = question.Answers.Where(answer => answer.СorrectnessIndicator > 0);
bool isCorrect = true;
foreach (var correctAnswer in correctAnswers)
{
isCorrect = isCorrect && userAnswers
.Where(answer => answer.СorrectnessIndicator > 0)
.Any(userAnswer => userAnswer.Id == correctAnswer.Id);
}
isCorrect = isCorrect && userAnswers.Count(answer => answer.СorrectnessIndicator > 0) == correctAnswers.Count();
if (isCorrect)
{
answerOntestQuestion.Points = question.ComlexityLevel;
}
}
private void ProcessTextAnswer(IEnumerable<Answer> userAnswers, Question question, AnswerOnTestQuestion answerOntestQuestion)
{
if (userAnswers.Count() != 1)
{
throw new InvalidDataException("Пользователь должен указать 1 правильный ответ");
}
if (userAnswers.Single().Content == null)
{
throw new InvalidDataException("Пользователь должен указать ответ");
}
if (question.Answers.Select(answer => answer.Content.ToLower()).Contains(userAnswers.Single().Content.ToLower()))
{
answerOntestQuestion.Points = question.ComlexityLevel;
}
}
private void ProcessSequenceAnswer(List<Answer> answers, Question question, AnswerOnTestQuestion answerOntestQuestion)
{
bool isCorrect = true;
if (answers.Count() != question.Answers.Count)
{
throw new InvalidDataException("Последовательность не совпадает с исходной");
}
var plainAnswers = question.Answers.ToList();
for (int i = 0; i < answers.Count(); i++)
{
isCorrect = isCorrect && answers[i].Id == plainAnswers[i].Id;
}
if (isCorrect)
{
answerOntestQuestion.Points = question.ComlexityLevel;
}
}