gistfile1.rb

class Api::ShowsController < ApiController
  caches_page :index

  def index
    @shows = Show.order('id ASC').all

    index = {}
    @shows.each do |show|
      show.image = show.image_url(:large)
      index[show.id] = show
    end
    
    response = {
      meta: {
        type: 'index',
        name: 'shows',
        order: @shows.collect { |show| show.id }
      },
      index: index
    }

    render json: response, callback: params[:callback]
  end
end