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+---
+title: "Useful Rails Routing tips"
+date: 2009-01-02T15:50:00Z
+comments: false
+url: /post/67873462/useful-rails-routing-tips
+tags:
+---
+
+
+
+Even though I have been using Rails for fun and profit for about 2 years now, I felt I never really used it’s routing engine to its full potential. So I checked out new [Rails Routing from the outside in](http://guides.rubyonrails.org/routing_outside_in.html) guide and discovered bunch of useful tricks that I (and maybe you) had no idea you could do. Here they are:
+
+### Multiple resource definitions on a single line
+
+```ruby
+map.resources :photos, :books, :videos
+```
+
+### Impose a certain format for resource identifiers
+
+```ruby
+map.resources :photos, :requirements => { :id => /[A-Z][A-Z][0-9]+/ }
+```
+
+This way, `/photos/3` would not work, but `/photos/DA321` would.
+
+### Friendlier action names
+
+Say for your application ‘create’ and ‘change’ make more sense than the default ‘new’ and ‘edit’ you can do
+
+```ruby
+map.resources :photos, :path_names => { :new => 'make', :edit => 'change' }
+```
+
+You can also do this site-wide also, in your environment.rb
+
+```ruby
+config.action_controller.resources_path_names = { :new => 'make', :edit => 'change' }
+```
+
+### Trim the fat off resources with :only and :except
+
+
+When you use map.resources, rails generates 7 restful routes for that resource; But what if that resource only needed to be seen and listed, never edited or created?
+
+```ruby
+map.resources :photos, :only => [:index, :show]
+```
+
+If your application uses a lot of `map.resources` calls but not neccesarily all its generated routes, you can save memory this way.
+
+### Adding extra routes to your resources
+
+Instead of fighting the `map.resources` generator by placing a horror like this atop your routes.rb
+
+```ruby
+map.connect '/photos/:id/preview', { :controller => 'photos', :action => 'preview' }
+```
+
+You can do this to your already mapped resource
+
+```ruby
+map.resources :photos, :member => { :preview => :get }
+```
+
+This will map all GET’s to `/photos/3` to the preview action of your photos controller
+
+This can also be  used in collections instead of singular members, just change `:member` to `:collection`
+
+```ruby
+map.resources :photos, :collection => { :search => :get }
+```
+
+This will give you `/photos/search` and hit the search action within the photos controller