class ActionDispatch::Routing::RouteSet::NamedRouteCollection

def define_named_route_methods(name, route)
  {:url => {:only_path => false}, :path => {:only_path => true}}.each do |kind, opts|
    hash = route.defaults.merge(:use_route => name).merge(opts)
    define_hash_access route, name, kind, hash
    define_url_helper route, name, kind, hash
  end
end