private double CalculateScore(List <AnswerDbo> answersDbo, TestDbo testDbo)
{
var rightAnswersCount = answersDbo.Count(a =>
AnswersHelper.CheckAnswer(a.UserAnswer, a.RightAnswer));
return((double)rightAnswersCount / testDbo.Questions.Count);
}
public async Task <ActionResult> GetScorePerQuestionsAsync(Guid testId)
{
var answers = await ModelsContext.Results
.Include(r => r.Answers)
.ThenInclude(a => a.Question)
.Where(r => r.Test.Id == testId)
.SelectMany(r => r.Answers)
.ToListAsync();
var questionScores = answers.GroupBy(a => a.Question.Question)
.Select(g => new
{
Question = g.Key,
Score = (double)g.Count(a =>
AnswersHelper.CheckAnswer(a.UserAnswer, a.RightAnswer)) / g.Count()
})
.ToList();
return(Ok(questionScores));
}
