Esempio n. 1
0
        /// <summary>
        /// The get quiz data by quiz id.
        /// </summary>
        /// <param name="quizId">
        /// The quiz id.
        /// </param>
        /// <returns>
        /// The <see cref="QuizDataDTO"/>.
        /// </returns>
        public QuizDataDTO getQuizDataByQuizID(int quizId)
        {
            var result = new QuizDataDTO {
                quizVO = new QuizDTO(this.GetOneById(quizId).Value)
            };

            if (result.quizVO != null && result.quizVO.subModuleItemId.HasValue)
            {
                result.questions   = this.GetQuizQuestionsBySMIId(result.quizVO.subModuleItemId.Value).ToArray();
                result.distractors = this.GetQuizDistractorsBySMIId(result.quizVO.subModuleItemId.Value).ToArray();
            }

            return(result);
        }
Esempio n. 2
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        public QuizDataDTO getQuizDataByQuizGuid(Guid key)
        {
            var queryOver = new DefaultQueryOver <Quiz, int>().GetQueryOver().Where(x => x.Guid == key).Take(1);
            var quiz      = Repository.FindOne(queryOver).Value;
            var result    = new QuizDataDTO {
                quizVO = new QuizDTO(quiz)
            };

            if (result.quizVO != null && result.quizVO.subModuleItemId.HasValue)
            {
                result.questions   = this.GetQuizQuestionsBySMIId(result.quizVO.subModuleItemId.Value).ToArray();
                result.distractors = this.GetQuizDistractorsBySMIId(result.quizVO.subModuleItemId.Value).ToArray();
            }
            return(result);
        }
Esempio n. 3
0
        private int SaveQuestionResult(OfflineQuizAnswerDTO[] answers, QuizDataDTO quizData, QuizResult postQuizResult)
        {
            var score = 0;

            foreach (var answer in answers)
            {
                var questionResult = new QuizQuestionResult();
                var question       = quizData.questions.First(x => x.questionId == answer.questionId);
                //var distractors = quizData.questions.Where(x => x.questionId == answer.questionId).ToList();
                var distractors = DistractorModel.GetAllByQuestionId(answer.questionId).ToList();
                questionResult.Question = question.question;
                var questionObj = QuestionModel.GetOneById(question.questionId).Value;
                questionResult.QuestionRef  = questionObj;
                questionResult.QuestionType = questionObj.QuestionType;
                questionResult.QuizResult   = postQuizResult;

                if (answer.trueFalseAnswer != null)
                {
                    var shouldBeOneDistractor = distractors.FirstOrDefault();
                    if (shouldBeOneDistractor == null)
                    {
                        throw new InvalidOperationException("There should be a distractor for true/false question");
                    }

                    var isCorrect = answer.trueFalseAnswer.answer == (shouldBeOneDistractor.IsCorrect ?? false);
                    if (isCorrect)
                    {
                        score++;
                    }

                    questionResult.IsCorrect = isCorrect;

                    QuizQuestionResultModel.RegisterSave(questionResult, true);
                }

                if (answer.singleChoiceAnswer != null)
                {
                    var quizDistractorAnswer     = DistractorModel.GetOneById(answer.singleChoiceAnswer.answeredDistractorId).Value;
                    var quizQuestionResultAnswer = new QuizQuestionResultAnswer
                    {
                        QuizQuestionResult = questionResult,
                        Value = quizDistractorAnswer.DistractorName,
                        QuizDistractorAnswer = quizDistractorAnswer,
                    };

                    var distractor = distractors.FirstOrDefault(x => x.Id == quizDistractorAnswer.Id);
                    if (distractor == null)
                    {
                        throw new InvalidOperationException("How come answered distractor id is not present in question distractors???");
                    }

                    var isCorrect = distractor.IsCorrect ?? false;
                    if (isCorrect)
                    {
                        score++;
                    }

                    questionResult.IsCorrect = isCorrect;

                    QuizQuestionResultModel.RegisterSave(questionResult, true);
                    QuizQuestionResultAnswerModel.RegisterSave(quizQuestionResultAnswer);
                }

                if (answer.multiChoiceAnswer != null)
                {
                    var correctDistractors = distractors.Where(x => x.IsCorrect ?? false).Select(x => x.Id);
                    var isCorrect          = correctDistractors.SequenceEqual(answer.multiChoiceAnswer.answeredDistractorIds);
                    if (isCorrect)
                    {
                        score++;
                    }

                    questionResult.IsCorrect = isCorrect;

                    QuizQuestionResultModel.RegisterSave(questionResult, true);

                    foreach (var answeredDistractorId in answer.multiChoiceAnswer.answeredDistractorIds)
                    {
                        var distrator = distractors.First(x => x.Id == answeredDistractorId);
                        var quizQuestionResultAnswer = new QuizQuestionResultAnswer
                        {
                            QuizQuestionResult = questionResult,
                            Value = distrator.DistractorName,
                            QuizDistractorAnswer = distrator,
                        };

                        QuizQuestionResultAnswerModel.RegisterSave(quizQuestionResultAnswer);
                    }
                }
            }

            return(score);
        }