gistfile1.txt

object @product
attributes :id, :name, :sku, :description, :price, :permalink
node(:in_stock){|product| product.in_stock? }
node(:collection){|product| product.collection.name.titleize if product.collection.present? }
child(:square_images) do
  node(:image_url){|image| image.attachment.url(:product_medium)}
  node(:large_image_url){|image| image.attachment.url(:large)}
  node(:mini_image_url){|image| image.attachment.url(:mini)}
end
child(:variants) do
  attributes :sku, :id, :product_id
  node(:in_stock){|variant| variant.in_stock? }
end