survey/app/models/survey_answer.rb

class SurveyAnswer
  include Mongoid::Document
  include Mongoid::Timestamps
  include Mongoid::Attributes::Dynamic
  
  field :user, type: BSON::ObjectId
  field :scored_points, type: Integer, :default => 0
  field :avg_points, type: Integer
  field :individual_total, type: Array, :default => []
  field :select_question, type: Array, :default => []
  belongs_to :questionnaire_survey
  after_create do
    if self.questionnaire_survey
      info = {:questionnaire_survey_id=>self.questionnaire_survey.id,:user=>self.user}
      if self.user.blank?
        info[:survey_answer_ids] = [self.id]
      end
      answer_group = SurveyAnswerGroup.where(info).first
      if answer_group.nil?
        answer_group = SurveyAnswerGroup.new(info)
      end
      answer_group.last_modified = self.updated_at
      answer_group.survey_answer_ids << self.id
      answer_group.save
    end
  end
  after_save do
    answer_group = SurveyAnswerGroup.where(:questionnaire_survey_id=>self.questionnaire_survey.id,:user=>user).first
    if answer_group
      answer_group.last_modified = self.updated_at
      answer_group.save
    end
  end
  before_destroy do
    answer_group = SurveyAnswerGroup.where(:user=>self.user,:questionnaire_survey_id=>self.questionnaire_survey_id).first
    if answer_group
      answer_group.survey_answer_ids.delete(self.id)
      if answer_group.survey_answer_ids.count == 0
        answer_group.destroy
      else
        answer_group.save
      end
    end
  end
  def get_avg_points
    if self.avg_points.nil?
      total_weight = self.questionnaire_survey.get_total_weight(self)
      self.avg_points = (scored_points.to_f / total_weight).round
      self.save
      self.avg_points
    else
      self.avg_points
    end
  end
end