public IActionResult GetAnswersStatistics()
{
IEnumerable <GetAnswerDto> answers = _answerRepository.GetAnswers();
List <StatisticsDto> statistics = new List <StatisticsDto>();
var groupedAnswers = answers.OrderBy(ans => ans.QuestionId).GroupBy(ans => ans.QuestionId).Where(group => group.Key != (int)Enum_QuestionType.Opened).ToArray();
foreach (IGrouping <int, GetAnswerDto> questionAnswer in groupedAnswers)
{
var groupedReplies = questionAnswer.OrderBy(reply => reply.ReplyContent).GroupBy(reply => reply.ReplyContent).ToArray();
Dictionary <string, int> answersInstances = new Dictionary <string, int>();
foreach (IGrouping <string, GetAnswerDto> reply in groupedReplies)
{
answersInstances.Add(reply.Key, reply.ToArray().Length);
}
statistics.Add(new StatisticsDto()
{
QuestionContent = _questionRepository.GetQuestion(questionAnswer.Key).Content,
AnswerStatistics = answersInstances
});
}
return(Json(statistics));
}
