Railscasts - Routing in Rails 3

#203

Mar 01, 2010

Routing in Rails 3

Rails 3 sports a new routing interface. In this episode I show how to translate the old interface into the new one and show off a few new features.

Tags: rails-3.0 routing

Download (30.2 MB, 13:31)

alternative download for iPod & Apple TV (19 MB, 13:31)

Read it on ASCIIcasts

Resources

rails detour
mate detour
rails g controller info about
rails s

Detour::Application.routes.draw do |map|
  # map.resources :products, :member => { :detailed => :get }
  resources :products do
    get :detailed, :on => :member
  end
  
  # map.resources :forums, :collection => { :sortable => :get, :sort => :put } do |forums|
  #   forums.resources :topics
  # end
  resources :forums do
    collection do
      get :sortable
      put :sort
    end
    resources :topics
  end
  
  # map.root :controller => "home", :action => "index"
  root :to => "home#index"
  
  # map.about "/about", :controller => "info", :action => "about" 
  match "/about(.:format)" => "info#about", :as => :about
  
  match "/:year(/:month(/:day))" => "info#about", :constraints => { :year => /\d{4}/, :month => /\d{2}/, :day => /\d{2}/ }
  
  match "/secret" => "info#about", :constraints => { :user_agent => /Firefox/ }
  
  constraints :host => /localhost/ do
    match "/secret" => "info#about"
  end
  
  match "/hello" => proc { |env| [200, {}, "Hello Rack!"] }
end

<!-- info/about.html.erb -->
<%= debug params %>

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16 comments

1. Sleeptillseven Mar 01, 2010 at 00:04

Great and thanks.

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2. Tobias Mar 01, 2010 at 00:26

Another great episode! I like Monday mornings ;-)

@Ryan:
One question to the :year, :month, :day variables. Is it possible to set standard values for those that were not provided - or do you have to do this in the controller method itself?

Thanks and keep up the great work!
Tobias

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3. Valentin Mar 01, 2010 at 01:32

Thanks for the Screencast! Excellent and helpfull as always. For the next project I'll switch to 3.

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4. Pathé Mar 01, 2010 at 02:52

thanks for the screencast, ruby on rails rocks.

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5. Danz Mar 01, 2010 at 03:51

Good screencast as usual...
I'm new to rails, and now I can understand about this great framework coz your screencast.
Thanks Ryan...

Since I watch and followed your screencast, I didn't see screencast about Chat Application with Rails. Would you please to make screencast about it (e.g. with XMPP4R or Juggernaut) correct me if I'm wrong)...
Thanks before

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6. Peter Mar 01, 2010 at 05:57

The new routing is looking really sexy, like everything I've seen of Rails 3 so far.

It's gonna be another good year for us rubyists ^^

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7. Jose Mar 01, 2010 at 07:51

The API is not complete though. Shallow routes are missing, for instance.

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8. Ryan Bates Mar 01, 2010 at 09:06

@Tobias, I heard of a :defaults option you can supply for default values, but I could not get this to work. If nothing else it's pretty easy to handle default values on the controller side.

@Jose, right, shallow routes are in the works I believe.

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9. Patrick Ma Mar 01, 2010 at 18:28

Great screen-cast, very helpful details on what's to come from Rails 3 in terms of routing. You got a very clear voice, looking forward to more screen-casts.

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10. George Mar 02, 2010 at 21:54

Hi Ryan,
Thank you for a great tutorial. Keep it up.

p.s. I noticed what I think might be a typo in the episode description.
"Rails 3 sports" should be "Rails 3 supports".

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11. steve Mar 02, 2010 at 22:06

@George: I'll take the liberty of saving Ryan a response. "To sport" is a verb used for precisely this purpose. It means "to wear or display" (something) and is often used as a synonym for "have" when the writer wishes to make the writing feel more active. It also has a positive, energetic connotation, making it well-suited to describing new features of a product, service, or fashion.

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Hi, i'd like to know.. is it possible to use the new rails router in non rails apps?

And if how?

thx :)

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Routing in Rails 3

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