The document discusses Ruby on Rails, a web application framework that uses the MVC pattern. It mentions key components of Rails like ActiveRecord and how to install gems. It also discusses MongoDB for data persistence and provides a code example of embedding documents between an Artist and Instrument model. The document recommends live coding and thanks the reader.

1. ruby on rails
mongodb

2. @lucasrenan

3. http://nudesign.com.br

4. traidor do movimento

6. matz

7. instalação

10. dhh

11. Model
View
Controller

12. $ gem install
rails

14. ~ 45 mil
bibliotecas

17. framework
modular

18. # application.rb
# Pick the frameworks you want:
# require "active_record/railtie"
require "action_controller/railtie"
require "action_mailer/railtie"
require "active_resource/railtie"
require "sprockets/railtie"
# require "rails/test_unit/railtie"

19. persistência
poliglota

22. estrutura
flexível

24. class Artist
include Mongoid::Document
field :name, type: String
embeds_many :instruments
end
class Instrument
include Mongoid::Document
field :name, type: String
embedded_in :artist
end

25. toby = Artist.new(name: "Toby Morse")
toby.save!

26. marky = Artist.where(name: "Marky
Ramone").first
marky.instruments.create(name: "Drums")

27. live
coding

33. obrigado
:)