Added sample named route [DHH]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4001 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

railties/configs/routes.rb

 ActionController::Routing::Routes.draw do |map|
-  # Add your own custom routes here.
   # The priority is based upon order of creation: first created -> highest priority.
   
-  # Here's a sample route:
+  # Sample of regular route:
   # map.connect 'products/:id', :controller => 'catalog', :action => 'view'
   # Keep in mind you can assign values other than :controller and :action
 
+  # Sample of named route:
+  # map.purchase 'products/:id/purchase', :controller => 'catalog', :action => 'purchase'
+  # This route can be invoked with purchase_url(:id => product.id)
+
   # You can have the root of your site routed by hooking up '' 
   # -- just remember to delete public/index.html.
   # map.connect '', :controller => "welcome"