Why Should I Care About Rails 4?

A talk about the upcoming features in Rails 4, and where Rails is going.

Transcript

1. Why should I
   care about
   Rails 4?
   @steveklabnik
   Monday, October 8, 12
   

   View Slide

2. Monday, October 8, 12
   

   View Slide

3. Monday, October 8, 12
   

   View Slide

4. Tons of stuff!
   (ʏ´ωʆ)ਓ(´ωʆʏ).
   Monday, October 8, 12
   

   View Slide

5. Mass Extraction
   ➡page and
   action caching
   ➡rack-cache
   ➡observers
   ➡session store
   ➡mass
   assignment
   ➡active
   resource
   Monday, October 8, 12
   

   View Slide

6. Strong parameters
   class PeopleController < ActionController::Base
   # throws ActiveModel::ForbiddenAttributes exception
   def create
   Person.create(params[:person])
   end
   private
   # now it won’t!
   def person_params
   params.require(:person).permit(:name, :age)
   end
   end
   Monday, October 8, 12
   

   View Slide

7. Rails::Queueing
   # job.respond_to?(:run)
   # => true
   Rails.queue.push(job)
   Monday, October 8, 12
   

   View Slide

8. Rails::Queueing
   class AsyncMailer < BaseMailer
   end
   Monday, October 8, 12
   

   View Slide

9. Rails::Queueing
   class ActionMailer::Base
   class_attribute :queue
   self.queue = ActiveSupport::SynchronousQueue.new
   end
   Monday, October 8, 12
   

   View Slide

10. class MyController < ActionController::Base
    include ActionController::Live
    def index
    100.times {
    response.stream.write "hello world\n"
    }
    response.stream.close
    end
    end
    ActionController::Live
    Monday, October 8, 12
    

    View Slide

11. (¬_¬)
    Monday, October 8, 12
    

    View Slide

12. Routing Concerns
    BCX::Application.routes.draw do
    resources :messages { resources :comments }
    resources :forwards { resources :comments }
    resources :uploads { resources :comments }
    end
    BCX::Application.routes.draw do
    concern :commentable do
    resources :comments
    end
    resources :messages, :forwards, :uploads, concerns: :commentable
    end
    Monday, October 8, 12
    

    View Slide

13. Concerns
    app/models/concerns
    Monday, October 8, 12
    

    View Slide

14. Cache Digests
    Monday, October 8, 12
    

    View Slide

15. (ʗɻʘ)
    Monday, October 8, 12
    

    View Slide

16. Cache Digests
    <% cache project do %>
    Monday, October 8, 12
    

    View Slide

17. TURBO
    LINKS
    Monday, October 8, 12
    

    View Slide

18. Turbolinks
    $(document).ready ->
    alert "page has loaded!"
    $(document).bind "page:change", ->
    alert "page has loaded!"
    
    No turbolinks here
    .
    Monday, October 8, 12
    

    View Slide

19. MAX
    SPEED
    Monday, October 8, 12
    

    View Slide

20. Related:
    Monday, October 8, 12
    

    View Slide

21. Rails Versioning
    (~> ‘shifted’ SemVer)
    Monday, October 8, 12
    

    View Slide

22. •
    4.0.0: Easy upgrade, new features, new deprecations
    •
    4.0.x: no new deprecations
    •
    4.1.0: add features, remove deprecated stuff
    Monday, October 8, 12
    

    View Slide

23. When’s it going
    to be released?
    Monday, October 8, 12
    

    View Slide

24. “When It’s Ready”
    I hope it’s ready this year.
    Monday, October 8, 12
    

    View Slide

25. Why should I
    care about
    Rails 4?
    Monday, October 8, 12
    

    View Slide

26. Why should I
    care about
    Rails?
    Monday, October 8, 12
    

    View Slide

27. “Rails is the
    best web
    framework 2005
    has to offer”
    Monday, October 8, 12
    

    View Slide

28. Monday, October 8, 12
    

    View Slide

29. ?
    Monday, October 8, 12
    

    View Slide

30. Monday, October 8, 12
    

    View Slide

31. Monday, October 8, 12
    

    View Slide

32. Monday, October 8, 12
    

    View Slide

33. Monday, October 8, 12
    

    View Slide

34. Monday, October 8, 12
    

    View Slide

35. “But what distinguishes the worst architect
    from the best of bees is this, that the architect
    raises his structure in imagination before he
    erects it in reality. ... Besides the exertion of the
    bodily organs, the process demands that, during
    the whole operation, the workman’s will be
    steadily in consonance with his purpose. This
    means close attention.”
    - Marx, Capital I, Chapter 7
    Monday, October 8, 12
    

    View Slide

36. I am
    excite
    Monday, October 8, 12
    

    View Slide

37. Why should I
    care about
    Rails 4?
    @steveklabnik
    Monday, October 8, 12
    

    View Slide