Nokogiri Template Builder. (Rails 3.0)

gistfile1.rb

require 'action_view'

module ActionView
  module Template::Handlers
    class NokogiriBuilder
      class_attribute :default_format
      self.default_format = Mime::XML

      def call(template)
        require 'nokogiri'
        "xml = ::Nokogiri::XML::Builder.new { |xml|" +
          template.source +
          "}.to_xml;"
      end
    end
  end
end

ActionView::Template.register_template_handler :nokogiri, ActionView::Template::Handlers::NokogiriBuilder.new

Where should I put this in my Rails app? What should the template file extension be?

Placing files like this in the lib directory is sufficient. If you have many builders(handlers), then adding a lib/builders/ or lib/handlers/ directory may be better. Note that you'll need to add those paths to your application config with something like:

config.autoload_paths += Dir[ "#{config.root}/lib/**/" ]

This will add all subdirectories in lib to your application auto load path. You could just add the specific paths you want to require.

The template file extension is your choice. In this gist, NokogiriBuilder.new is registered to handle files with the extension :nokogiri

Are you still using this? It is not working with rails 3.2.6.

Still working at rails 4.2.8