food_recording_query.rb

def recordings
    super do |recordings|
      recordings = recordings.with_rejected_readings if self.with_rejected_readings.present?
      recordings
    end
  end

  def accepted_rejected_pie_chart_data
    readings = FoodReadings.where(food_recording_id: recordings.collect(&:id))
    accepted = FoodReadings.where(food_recording_id: recordings.collect(&:id)).with_section(self.section_id).accepted.count }
    rejected = recordings.sum{ |recording| recording.food_readings.with_section(self.section_id).rejected.count }
    { accepted: percentage_of_readings(accepted), rejected: percentage_of_readings(rejected) }
  end