Cache page based on actionpack_page_caching

cache_page.rb

require 'fileutils'
module Openair
  module CachePage
    # This methods come from action_pack/cache_page'
    # https://github.com/rails/actionpack-page_caching
    # We didn't need the whole gem. So I decided to get
    # just what we need :)
    def cache_page(content, path, extension = '.html', gzip = Zlib::BEST_COMPRESSION)
      path = page_cache_path(path, extension)
      FileUtils.makedirs(File.dirname(path))
      File.open(path, 'wb+') { |f| f.write(content) }
      if gzip
        Zlib::GzipWriter.open(path + '.gz', gzip) { |f| f.write(content) }
      end
    end
    private

    def page_cache_path(path, extension = nil)
      page_cache_directory = "#{Rails.root.to_s}/public"
      page_cache_directory.to_s + '/' + path + extension
    end
  end
end