ucberkeley/moocchat

csv << ['chat_group', 'group_size',
        'question_id', 'correct_choice',
        'start_time_0', 'start_time_1', 'start_time_2',
        'initial_choice_0', 'initial_choice_1', 'initial_choice_2',
        'final_choice_0', 'final_choice_1', 'final_choice_2']
@sessions.each do |session|
  csv << [session[:chat_group], session[:group_size],
          session[:question_id], session[:correct_choice],
          session[:start_time_0], session[:start_time_1], session[:start_time_2],
          session[:initial_choice_0], session[:initial_choice_1], session[:initial_choice_2],
          session[:final_choice_0], session[:final_choice_1], session[:final_choice_2]]
end