diff options
Diffstat (limited to 'app/models/question.rb')
| -rw-r--r-- | app/models/question.rb | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/app/models/question.rb b/app/models/question.rb index 084f826..294e03e 100644 --- a/app/models/question.rb +++ b/app/models/question.rb @@ -160,6 +160,26 @@ class Question < ActiveRecord::Base after_create :notify_new_question after_update :notify_approved_question + # Returns hash with: + # :values - string with coma-separated values + # :labels - string with coma-separated, quoted labels for values + def feedback_chart_data + classes = Answer.new.feedback.class.values - [''] + delta = 0.00001 + result = {} + counts = classes.collect{ |opt| answers.with_feedback(opt).count } + + result[:values] = counts.inject(nil) do |res, cur| + res.nil? ? (cur + delta).to_s : "#{res}, #{cur + delta}" + end + + result[:labels] = classes.inject(nil) do |res, cur| + res.nil? ? "\"%%.%% - #{cur} (##)\"" : "#{res}, \"%%.%% - #{cur} (##)\"" + end + + result + end + protected # Sends notification about new question (TODO: check for group). def notify_new_question |