conditionally link to precompiled assets in rails 3 asset pipeline

application_helper.rb

module ApplicationHelper
  def controller_asset_javascript
    javascript_include_tag(controller_name) if Rails.configuration.assets.precompile.include?("#{controller_name}.js") || !Rails.env.production?
  end

  def controller_asset_stylesheet
    stylesheet_link_tag(controller_name) if Rails.configuration.assets.precompile.include?("#{controller_name}.css") || !Rails.env.production?
  end
end