Path Expander

gistfile1.rb

# OBSOLETE: See http://in.finitu.de/2009/04/25/use_route-param-for-rails-url-helper

module PathExpander
  def self.included(base)
    base.send :include, InstanceMethods
    base.helper_method :expand_url, :expand_path
  end
  
  module InstanceMethods
    def expand_url(path, options = {})
      path, raw_params_str = path.split("?")
      raw_params = (raw_params_str || "").split('&').map{|var| var.split('=') }
      params = raw_params.each_with_object({}) {|(key, value), hsh| hsh[key] = value }
      # TODO: This recognize path may be a bit inefficient
      params.merge(ActionController::Routing::Routes.recognize_path(path))
      url_for(params.merge(options))
    end

    def expand_path(path, options = {})
      expand_url(path, options.merge(:only_path => true))
    end
  end
end