Rails - além do Active Record

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Slides da minha apresentação na trilha de Ruby no TDC2011 - 08/07/2011

Slides da minha apresentação na trilha de Ruby no TDC2011 - 08/07/2011

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  • rails -m http://jruby.org/rails3.rb'\n
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  • Each user has a list of IDs that represent the people that they are friends with.\nrefers to the same table with two different names\n
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  • tirar AR\ncolocar um nosql...\nfeito pra java?\n
  • http://andreasronge.github.com/rails3.rb\n
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Transcript

  • 1. Além do Active Record
  • 2. @HANNELITA a.k.a Hanneli• Desenvolvedora @• Fanática por café (especialmente do Starbucks)• Alucinada por TI• Viciada em codar• Universitária• etc
  • 3. Rails
  • 4. MySQLRails
  • 5. PROBLEM?
  • 6. Uh-oh. Exciting.
  • 7. class User < ActiveRecord::Base  has_many :friends, :dependent => :destroy has_many :contacts, :through => :friends, :order => "created_at DESC", :dependent => :destroy end
  • 8. class Friend < ActiveRecord::Base  belongs_to :user belongs_to :contact, :class_name => "User", :foreign_key => "contact_id"  def self.befriend(user, contact) relationship =find_by_user_id_and_contact_id(user.id,friend.id) if relationship.nil? transaction do Friend.create(:user => user, :contact => contact) end end end end
  • 9. IdIdIdId
  • 10. IdIdIdId
  • 11. HOMEWORKImplemente as relações de follow, follower, followed_by, etc.
  • 12. YES, YOU CAN
  • 13. REDIS
  • 14. VANTAGENS• Menos código• Legibilidade• Velocidade na busca
  • 15. • Sim, é só escrever código Ruby.• Prazer, initializer, acho que você já me conhece.
  • 16. RAILS 3
  • 17. RAILS 3: THE GREAT DECOUPLING
  • 18. ActiveRecord
  • 19. NEO4J
  • 20. NOT ONLY
  • 21. rails new seuProjeto -m http://andreasronge.github.com/rails3.rb
  • 22. YES, IT WORKS.
  • 23. • CouchDB• Cassandra• Mongo• Riak
  • 24. PERGUNTAS?
  • 25. OBRIGADA!• hannelita@gmail.com - Gtalk• @hannelita