Drying this up

gistfile1.txt

  def regions_with_country_ids_for_select(collection)
    response = []
    collection.each do |item|
      response << [item.name, item.id, :"data-parent_id" => region.country_id]
    end
    response
  end

  def referral_origins_for_select(collection)
    response = []
    collection.each do |item|
      response << [item.name, item.id, :"data-parent_id" => referral_origin.referral_id]
    end
    response
  end

gistfile2.txt

  def dependent_options(collection, label)
    response = []
    collection.each do |item|
      response << [item.name, item.id, :"data-parent_id" => item[label]]
    end
    response
  end