private void ProcessSequenceAnswer(List <Answer> answers, Question question,
AnswerOnTestQuestion answerOntestQuestion)
{
var isCorrect = true;
if (answers.Count() != question.Answers.Count)
{
throw new InvalidDataException("Последовательность не совпадает с исходной");
}
var plainAnswers = question.Answers.ToList();
for (var i = 0; i < answers.Count(); i++)
{
isCorrect = isCorrect && answers[i].Id == plainAnswers[i].Id;
}
if (isCorrect)
{
answerOntestQuestion.Points = question.ComlexityLevel;
}
using var repositoriesContainer = new LmPlatformRepositoriesContainer();
foreach (var userAnswerId in answers.Select(x => x.Id))
{
var answer = GetAnswerById(userAnswerId);
answerOntestQuestion.AnswerString += answer.Content;
answerOntestQuestion.AnswerString += "\n";
}
}
private Tuple <Question, int> GetNextQuestionsFromNotPassedItems(List <AnswerOnTestQuestion> notPassedQuestions, int nextQuestionNumber)
{
int questionId;
if (notPassedQuestions.Any(question => question.Number == nextQuestionNumber))
{
questionId = notPassedQuestions
.Single(question => question.Number == nextQuestionNumber)
.QuestionId;
}
else
{
var orderedAnswers = notPassedQuestions.OrderBy(question => question.Number).SkipWhile(question => question.Number < nextQuestionNumber).ToList();
orderedAnswers.AddRange(notPassedQuestions.OrderBy(question => question.Number).TakeWhile(question => question.Number < nextQuestionNumber));
AnswerOnTestQuestion answerOnTestQuestion = orderedAnswers.First();
nextQuestionNumber = answerOnTestQuestion.Number;
questionId = answerOnTestQuestion.QuestionId;
}
Question resultQuestion = GetQuestionById(questionId);
if (resultQuestion.QuestionType == QuestionType.TextAnswer)
{
resultQuestion.Answers = resultQuestion.Answers.Take(1).ToList();
}
var random = new Random();
resultQuestion.Answers = resultQuestion.Answers.OrderBy(a => random.Next()).ToList();
return(new Tuple <Question, int>(resultQuestion, nextQuestionNumber));
}
private void SaveAnswerOnTestQuestion(AnswerOnTestQuestion answerOnTestQuestion)
{
using (var repositoriesContainer = new LmPlatformRepositoriesContainer())
{
repositoriesContainer.RepositoryFor <AnswerOnTestQuestion>().Save(answerOnTestQuestion);
repositoriesContainer.ApplyChanges();
}
}
private PassedQuestionResult GetQuestionStatus(AnswerOnTestQuestion answer)
{
if (!answer.Time.HasValue)
{
return(PassedQuestionResult.NotPassed);
}
return(answer.Points > 0
? PassedQuestionResult.Success
: PassedQuestionResult.Error);
}
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;
}
}
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");
}
var correctAnswer = question.Answers.Single(answer => answer.СorrectnessIndicator > 0);
if (correctAnswer.Id == userAnswers.Single(answer => answer.СorrectnessIndicator > 0).Id)
{
answerOntestQuestion.Points = question.ComlexityLevel;
}
using var repositoriesContainer = new LmPlatformRepositoriesContainer();
{
var answer = GetAnswerById(userAnswers.FirstOrDefault(y => y.СorrectnessIndicator > 0).Id);
answerOntestQuestion.AnswerString = answer.Content;
}
}
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;
}
answerOntestQuestion.AnswerString = userAnswers.Single().Content.ToLower();
}
public void MakeUserAnswer(IEnumerable <Answer> answers, int userId, int testId, int questionNumber)
{
var test = GetTest(testId);
TestPassResult testPassResult = GetTestPassResult(testId, userId);
CheckForTimeEndeed(userId, testId, test, testPassResult);
AnswerOnTestQuestion answerOnTestQuestion = GetAnswerOntestQuestion(userId, testId, questionNumber);
if (answers == null)
{
answerOnTestQuestion.Points = 0;
}
else
{
Question question = GetQuestionById(answerOnTestQuestion.QuestionId);
switch (question.QuestionType)
{
case QuestionType.HasOneCorrectAnswer:
ProcessOneVariantAnswer(answers, question, answerOnTestQuestion);
break;
case QuestionType.HasManyCorrectAnswers:
ProcessManyVariantsAnswer(answers, question, answerOnTestQuestion);
break;
case QuestionType.TextAnswer:
ProcessTextAnswer(answers, question, answerOnTestQuestion);
break;
case QuestionType.SequenceAnswer:
ProcessSequenceAnswer(answers.ToList(), question, answerOnTestQuestion);
break;
}
}
answerOnTestQuestion.Time = DateTime.UtcNow;
SaveAnswerOnTestQuestion(answerOnTestQuestion);
}
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");
}
var correctAnswers = question.Answers.Where(answer => answer.СorrectnessIndicator > 0);
var 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;
}
using var repositoriesContainer = new LmPlatformRepositoriesContainer();
foreach (var userAnswerId in userAnswers.Where(answer => answer.СorrectnessIndicator > 0)
.Select(x => x.Id))
{
var answer = GetAnswerById(userAnswerId);
answerOntestQuestion.AnswerString += answer.Content;
answerOntestQuestion.AnswerString += "\n";
}
}
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;
}
}