private static IEnumerable <IGrouping <string, string> > GetStemmedWordsGroups(IEnumerable <string> words)
 {
     return(words.Where(w => !WordCloudFiltering.IsStopWord(w))
            .Select(w => Regex.Replace(w, @"[^a-z0-9]", string.Empty, RegexOptions.IgnoreCase))
            .Where(w => !WordCloudFiltering.IsNumber(w))
            .GroupBy(w => w, w => w));
 }
Exemplo n.º 2
0
        public virtual void AddNewAnswer(SurveyAnswer surveyAnswer)
        {
            if (surveyAnswer == null)
            {
                return;
            }

            var newSurveyAnswersSummary = new SurveyAnswersSummary(surveyAnswer.SlugName)
            {
                TotalAnswers = 1
            };

            foreach (var questionAnswer in surveyAnswer.QuestionAnswers)
            {
                var questionType           = (QuestionType)Enum.Parse(typeof(QuestionType), questionAnswer.QuestionType);
                var questionAnswersSummary = new QuestionAnswersSummary
                {
                    QuestionType    = questionType,
                    QuestionText    = questionAnswer.QuestionText,
                    PossibleAnswers = questionAnswer.PossibleAnswers
                };

                newSurveyAnswersSummary.QuestionAnswersSummaries.Add(questionAnswersSummary);

                switch (questionType)
                {
                case QuestionType.SimpleText:
                    var words        = questionAnswer.Answer.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
                    var wordCounts   = new Dictionary <string, int>();
                    var stemmedWords =
                        words.Where(w => !WordCloudFiltering.IsStopWord(w))
                        .Select(w => Regex.Replace(w, @"[^a-z0-9]", string.Empty, System.Text.RegularExpressions.RegexOptions.IgnoreCase))
                        .Where(w => !WordCloudFiltering.IsNumber(w));
                    stemmedWords.GroupBy(w => w, w => w).ToList()
                    .ForEach(g => wordCounts.Add(g.Key, g.Count()));
                    questionAnswersSummary.AnswersSummary = JsonConvert.SerializeObject(wordCounts);
                    break;

                case QuestionType.MultipleChoice:
                    var choiceCounts = new Dictionary <string, int> {
                        { questionAnswer.Answer, 1 }
                    };
                    questionAnswersSummary.AnswersSummary = JsonConvert.SerializeObject(choiceCounts);
                    break;

                case QuestionType.FiveStars:
                    var answer = double.Parse(questionAnswer.Answer);
                    questionAnswersSummary.AnswersSummary = answer.ToString("F", CultureInfo.InvariantCulture);
                    break;

                default:
                    throw new ArgumentOutOfRangeException();
                }
            }

            this.MergeWith(newSurveyAnswersSummary);
        }