Short presentation given on the cool stuff in Rails 3. Impressions coming from a Developer who used Rails up to 0.12.1 and then came back to Rails 3.

1. Cool Stuff in
Rails 3
Cool Things that have happened in the
past 5 years

2. What’s this about
• 5 years ago used Rails up to version 0.12.1
• Revisiting now with Rails 3
• (http://railstutorial.org)

3. Heroku
• Deployment used to be really harsh
• Deployment + pain in production killed my rails
world
• Heroku is unreal

4. • gem install heroku
• heroku keys:add
• heroku create
• git push heroku master
• heroku open

5. nginx + Passenger
• http://nginx.org/
• http://www.modrails.com/

6. spork
• makes your tests fly - at least run quicker
• uses unix process forking goodness
• doesn’t need to load stuff
• gem install spork + tricks (see rails tutorial).
• http://ruby.railstutorial.org/chapters/static-
pages#sec:spork

7. Demo

8. rob@gonzo$ time rspec spec
.......................................................................................
Finished in 2.46 seconds
87 examples, 0 failures
real 0m3.092s
user 0m0.245s
sys 0m0.155s
rob@gonzo$ time rspec spec
No DRb server is running. Running in local process instead ...
.......................................................................................
Finished in 2.12 seconds
87 examples, 0 failures
real 0m19.755s
user 0m5.541s
sys 0m1.872s

9. spork
• Some changes require restart (model changes/
routes)

10. Bundler
• http://gembundler.com/
• Gemfile
• bundle install

11. Autotest
• Run tests continuously
• watches filesystem for changes
• runs tests when file changes
• autotest + growl on mac is cool

12. Demo

13. • http://ruby.railstutorial.org/chapters/static-
pages#sec:autotest
• https://github.com/svoop/autotest-growl

14. Community
• This room
• web
• tutorials
• podcasts
• blogs
• mailing lists

15. RubyMine
• very cool
• understands Ruby
• understands rails
• understands Gems

16. End