public async Task AddQuestionAsync(Question question, string[] answers)
{
var questions = await _questionsRepository.GetAllAsync();
question.Order = questions.Length == 0
? 0
: questions.Length;
string questionId = await _questionsRepository.AddAsync(question);
await _answersRepository.AddAnswersAsync(answers.Select((x, i) => new Answer {
QuestionId = questionId, Text = x, Order = i
}));
}