Rails Maintainance Headaches

Transcript

1. Rails Bad Practices Pete Higgins Seattle.rb
2. Me twitter: @pete_higgins github: @phiggins
3. Not me
4. Not me
5. Me
6. Me
7. “Why should I listen to you?”
8. What this isn't * An excuse to bash Rails * Performance optimization * Comprehensive
9. What this isn't * An excuse to bash Rails * Performance optimization
10. What this isn't * An excuse to bash Rails * Performance optimization * A comprehensive list
11. Comprehensive * I am not a ZOMG Expert
12. Comprehensive * I am not a ZOMG Expert * “Do these things and your code is fixed”
13. “Then what is this about?”
14. DHH Inventor of Rails and race cars. Original screencast: http://rubyonrails.ytmnd.com/
15. High level things I am obligated to mention
16. Comments
17. Cleverness Widget. where(foo_id:id). pluck(:timestamp). map(&:to_i). reduce(:-). abs
18. Debugging this ¯\_( ツ )_/¯
19. Cleverness Widget. where(foo_id:id). pluck(:timestamp). map(&:to_i). reduce(:-). abs
20. Resources are database models
21. Resources are not necessarily database models
22. Resources resource :profile, only: [:edit, :update] do member do get 'photo' => 'profile#edit_photo' post 'photo' => 'profile#update_photo' get 'crop_photo' end end
23. Resources resource :photo, only: [:edit, :create] resource :profile, only: [:edit, :update]
24. Resources
25. Resources
26. Resources * Do one thing in controller / actions.
27. Cleverness * ActiveRecord callbacks. * Observers.
28. Resources * Do one thing in controller / actions. * Delegate to other objects.
29. Models * Service Objects, Factories, Builders, non-ActiveRecord models.
30. Remove logic from views * Use view objects, presenters, form objects, decorators, etc.
31. Use Ruby * What you call it isn't important. * Not everything has to be a controller, model, helper or view.
32. Avoid @ivars def page @page ||= params[:page] || 1 end private :page helper_method :page
33. Avoid @ivars def page @page ||= params[:page] || 1 end private :page helper_method :page * rubygems.org/gems/ decent_exposure
35. Questions? twitter: @pete_higgins github: @phiggins