Rails 3 @ RS on Rails 2010

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Rails 3 Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br blog twitter ID Rails 3 Sunday,
November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Quem sou eu? • Carlos Antonio
da Silva • Desenvolvedor Ruby e Rails há mais de 2 anos • Engenheiro da Plataforma Tecnologia a 1 ano Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Desenvolvimento de aplicações em Rails Consultoria
Coaching em Rails e Agile Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Rails 3 Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Como tudo começou? Sunday, November 6,
11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Vantagens do Rails 3 Sunday, November
6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Vantagens do Rails 3 Performance Sunday,
November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Vantagens do Rails 3 Performance Modularidade
Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Vantagens do Rails 3 Performance Modularidade
Agnosticismo Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Arquitetura ActionDispatch ActiveSupport Rails Sunday, November
6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Arquitetura ActionDispatch ActiveSupport Rails Todo o
resto são Railties! Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Arquitetura ActionDispatch ActiveSupport Rails Todo o
resto são Railties! ActiveRecord ActionMailer ActionController ActionView outros... Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Como o Rails 3 muda o
modo como desenvolvemos? Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br rails command Rails 2.3 Rails 3
rails blog rails new blog Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br rails command ruby script/server ruby script/console
ruby script/generate ruby script/dbconsole rails console rails generate rails dbconsole rails server Rails 2.3 Rails 3 Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br rails command rails server rails console
rails generate rails dbconsole rails c rails g rails db rails s Rails 3 Shortcuts! Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br blog/conﬁg.ru require ::File.expand_path('../config/environment', __FILE__) run Blog::Application

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br blog/conﬁg/application.rb require File.expand_path('../boot', __FILE__) require 'rails/all'
Bundler.require(:default, Rails.env) if defined?(Bundler) module Blog class Application < Rails::Application config.encoding = "utf-8" config.filter_parameters += [:password] end end Sunday, November 6, 11

Bundler.require(:default, Rails.env) if defined?(Bundler) module Blog class Application < Rails::Application config.encoding = "utf-8" config.filter_parameters += [:password] end end uma Rack App! Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br O que é uma Rack App?

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br O que é uma Rack App?
Qualquer objeto que responde ao método call, retornando um array com três parâmetros: o response status, os headers e o body, que por sua vez deve responder ao método each. Rack App! lambda { |env| [ 200, {“Content-Type” => “plain/text”}, ["Hello!"] ] } Sunday, November 6, 11

Bundler.require(:default, Rails.env) if defined?(Bundler) module Blog class Application < Rails::Application config.encoding = "utf-8" config.filter_parameters += [:password] end end uma Rack App! Sunday, November 6, 11

Bundler.require(:default, Rails.env) if defined?(Bundler) module Blog class Application < Rails::Application config.encoding = "utf-8" config.filter_parameters += [:password] end end Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br blog/conﬁg/boot.rb require 'rubygems' # Set up
gems listed in the Gemfile. gemfile = File.expand_path('../../Gemfile', __FILE__) begin ENV['BUNDLE_GEMFILE'] = gemfile require 'bundler' Bundler.setup rescue Bundler::GemNotFound => e STDERR.puts e.message STDERR.puts "Try running `bundle install`." exit! end if File.exist?(gemfile) Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Bundler Router ActionMailer ActiveModel ActiveRecord Responders
Unobtrusive Javascript XSS Protection Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Biblioteca para gerenciamento de dependências Sunday,
November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br rsrails$ gem dependency actionpack -v="2.3.5" Gem
actionpack-2.3.5 activesupport (= 2.3.5, runtime) rack (~> 1.0.0, runtime) rsrails$ gem dependency thin Gem thin-1.2.7 daemons (>= 1.0.9, runtime) eventmachine (>= 0.12.6, runtime) rack (>= 1.0.0, runtime) Rubygems Resolução de dependências Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Rubygems Resolução de dependências require "rubygems"
require "thin" gem "actionpack", "2.3.5" Gems instaladas do rack: * rack (1.0.1) * rack (1.1.0) Sunday, November 6, 11

require "thin" gem "actionpack", "2.3.5" BOOM!!! Gems instaladas do rack: * rack (1.0.1) * rack (1.1.0) Sunday, November 6, 11

require "thin" gem "actionpack", "2.3.5" can't activate rack (~> 1.0.0, runtime) for ["actionpack-2.3.5"], already activated rack-1.1.0 for ["thin-1.2.7"] (Gem::LoadError) Gems instaladas do rack: * rack (1.0.1) * rack (1.1.0) Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Bundler: Gemﬁle # Gemfile gem "thin"
gem "actionpack", "2.3.5" Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Bundler: Gemﬁle # Gemfile gem "thin"
gem "actionpack", "2.3.5" rsrails$ bundle list Gems included by the bundle: * actionpack (2.3.5) * activesupport (2.3.5) * daemons (1.0.10) * eventmachine (0.12.10) * rack (1.0.1) * thin (1.2.7) Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Rubygems $LOAD_PATH Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br rsrails$ gem list *** LOCAL GEMS
*** bundler (0.9.25) rake (0.8.7, 0.8.5) rdoc (2.5.8) thor (0.13.6) } Filesystem Sunday, November 6, 11

*** bundler (0.9.25) rake (0.8.7, 0.8.5) rdoc (2.5.8) thor (0.13.6) } Filesystem # Rubygems gem “rake”, “0.8.5” } Gemﬁle Sunday, November 6, 11

*** bundler (0.9.25) rake (0.8.7, 0.8.5) rdoc (2.5.8) thor (0.13.6) } Filesystem # Rubygems gem “rake”, “0.8.5” } Gemﬁle bundler (0.9.25) rake (0.8.7, 0.8.5) rdoc (2.5.8) thor (0.13.6) } $LOAD_PATH Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Bundler Lock no $LOAD_PATH Sunday, November
6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Esqueci de colocar no conﬁg.gem! Sunday,
November 6, 11

*** bundler (0.9.25) rake (0.8.7, 0.8.5) rdoc (2.5.8) thor (0.13.6) } Filesystem Sunday, November 6, 11

*** bundler (0.9.25) rake (0.8.7, 0.8.5) rdoc (2.5.8) thor (0.13.6) } Filesystem # Gemfile - Bundler gem “rake”, “0.8.5” } Gemﬁle Sunday, November 6, 11

*** bundler (0.9.25) rake (0.8.7, 0.8.5) rdoc (2.5.8) thor (0.13.6) } Filesystem # Gemfile - Bundler gem “rake”, “0.8.5” } Gemﬁle rake-0.8.5 } $LOAD_PATH Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br rsrails$ gem list rake (0.8.7, 0.8.5)
thor (0.13.6) Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br # Gemfile gem "rake" rsrails$ gem
list rake (0.8.7, 0.8.5) thor (0.13.6) Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br # Gemfile gem "rake" # test_load_path_lock.rb
require "rubygems" require "bundler" Bundler.setup require "rake" require "thor" rsrails$ gem list rake (0.8.7, 0.8.5) thor (0.13.6) Sunday, November 6, 11

require "rubygems" require "bundler" Bundler.setup require "rake" require "thor" rsrails$ gem list rake (0.8.7, 0.8.5) thor (0.13.6) Lock no $LOAD_PATH Sunday, November 6, 11

require "rubygems" require "bundler" Bundler.setup require "rake" require "thor" rsrails$ gem list rake (0.8.7, 0.8.5) thor (0.13.6) rsrails$ ruby test_load_path_lock.rb test_load_path_lock.rb:6:in `require': no such ﬁle to load -- thor (LoadError) from test_load_path_lock.rb:6 Lock no $LOAD_PATH Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Packaging System OMG! Sunday, November 6,
11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Nova API Router Sunday, November 6,
11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Rotas root Rails 2.3 Rails 3
map.root :controller => "welcome" root :to => "welcome#index" Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Rotas comuns Rails 2.3 Rails 3
map.connect "products/:id", :controller=> "catalog", :action => "view" match 'products/:id' => 'catalog#view' Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Rotas nomeadas Rails 2.3 Rails 3
map.purchase "products/:id/purchase", :controller => "catalog", :action => "purchase" match "products/:id/purchase" => 'catalog#purchase', :as => :purchase Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Resources com member e collection Rails
2.3 Rails 3 map.resources :products, :member => { :short => :get, :toggle => :post }, :collection => { :sold => :get } resources :products do member do get :short post :toggle end get :sold, :on => :collection end Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Router e Rack FTW! Sunday, November
6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Router e Rack FTW! match "posts/:echo",
:to => "posts#show" Sunday, November 6, 11

:to => "posts#show" match "posts/:echo", :to => PostsController.action(:show) Rack App! Sunday, November 6, 11

:to => "posts#show" match "posts/:echo", :to => PostsController.action(:show) match "/posts/:echo" => redirect("/foo/%{echo}") Rack App! Sunday, November 6, 11

:to => "posts#show" match "posts/:echo", :to => PostsController.action(:show) match "posts/:echo" => lambda { |env| [ 200, {“Content-Type” => “plain/text”}, ["Echo!"] ] } match "/posts/:echo" => redirect("/foo/%{echo}") Rack App! Sunday, November 6, 11

:to => "posts#show" match "posts/:echo", :to => PostsController.action(:show) match "posts/:echo" => MySinatraBlog match "posts/:echo" => lambda { |env| [ 200, {“Content-Type” => “plain/text”}, ["Echo!"] ] } match "/posts/:echo" => redirect("/foo/%{echo}") Rack App! Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br 100% compatível com Rack OMG! Sunday,
November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br ActionMailer rsrails$ ls -lp app/ controllers/
helpers/ mailers/ models/ views/ rsrails$ rails g mailer Notifier signup_notification create app/mailers/notifier.rb invoke erb create app/views/notifier create app/views/notifier/signup_notification.text.erb invoke test_unit create test/functional/notifier_test.rb Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br ActionMailer rsrails$ ls -lp app/ controllers/
helpers/ mailers/ models/ views/ rsrails$ rails g mailer Notifier signup_notification create app/mailers/notifier.rb invoke erb create app/views/notifier create app/views/notifier/signup_notification.text.erb invoke test_unit create test/functional/notifier_test.rb mailers com diretório próprio Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br ActionMailer Nova API Sunday, November 6,
11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br TMail Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br TMail Mail Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br class Notifier < ActionMailer::Base default :from
=> "[email protected]" def signup_notification(recipient) @account = recipient attachments['image.jpg'] = File.read("image.jpg") mail(:to => recipient.email) do |format| format.html format.text end end end ActionMailer nova API Sunday, November 6, 11

=> "[email protected]" def signup_notification(recipient) @account = recipient attachments['image.jpg'] = File.read("image.jpg") mail(:to => recipient.email) do |format| format.html format.text end end end ActionMailer nova API Defaults Sunday, November 6, 11

=> "[email protected]" def signup_notification(recipient) @account = recipient attachments['image.jpg'] = File.read("image.jpg") mail(:to => recipient.email) do |format| format.html format.text end end end Variáveis de instância ActionMailer nova API Defaults Sunday, November 6, 11

=> "[email protected]" def signup_notification(recipient) @account = recipient attachments['image.jpg'] = File.read("image.jpg") mail(:to => recipient.email) do |format| format.html format.text end end end Variáveis de instância Attachments tipo cookies ActionMailer nova API Defaults Sunday, November 6, 11

=> "[email protected]" def signup_notification(recipient) @account = recipient attachments['image.jpg'] = File.read("image.jpg") mail(:to => recipient.email) do |format| format.html format.text end end end Variáveis de instância Attachments tipo cookies mail tipo respond_to do |format| ActionMailer nova API Defaults Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br ActionMailer::Base ActionController::Base ActionController::Metal AbstractController::Base Sunday, November
6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Menos coisas para lembrar OMG! Sunday,
November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br ActiveModel Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br • Google Summer of Code 2009:
ActiveModel Sunday, November 6, 11

• Extrair a lógica comum entre ActiveRecord e ActiveResource ActiveModel Sunday, November 6, 11

• Extrair a lógica comum entre ActiveRecord e ActiveResource • Hoje ActiveModel Sunday, November 6, 11

• Extrair a lógica comum entre ActiveRecord e ActiveResource • Hoje • Desempenha papel no agnosticismo de ORM ActiveModel Sunday, November 6, 11

• Extrair a lógica comum entre ActiveRecord e ActiveResource • Hoje • Desempenha papel no agnosticismo de ORM • Permite a criação de models à la ActiveRecord ActiveModel Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br ActiveResource::Base + ActiveModel module ActiveResource ...
class Base extend ActiveModel::Naming include CustomMethods, Observing, Validations include ActiveModel::Conversion include ActiveModel::Serializers::JSON include ActiveModel::Serializers::Xml end end Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br ActiveRecord::Base + ActiveModel Base.class_eval do ...
extend ActiveModel::Naming ... include ActiveModel::Conversion include Validations ... include ActiveModel::MassAssignmentSecurity include Callbacks, ActiveModel::Observing, Timestamp end end Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br MyApp + ActiveModel class Person include
ActiveModel::Validations attr_accessor :name, :age validates_presence_of :name, :age end >> p = Person.new => #<Person:0x102623588> >> p.valid? => false >> p.errors.full_messages => ["Name can't be blank", "Age can't be blank"] Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Agnosticismo de ORM Sunday, November 6,
11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br ActiveModel Rails::Railtie Agnosticismo de ORM Agnosticismo
de ORM Sunday, November 6, 11

de ORM Provê uma API para que o ActionPack possa conversar com o ORM Sunday, November 6, 11

de ORM Integração do ORM com o Rails Provê uma API para que o ActionPack possa conversar com o ORM Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Callbacks Serialization Validations Data Mapper MongoDB
ActiveRecord MeuModel ActiveModel Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br ActiveModel::Lint::Tests Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br module ActiveModel module Lint module Tests
def test_to_key; end def test_to_param; end def test_valid?; end def test_persisted?; end def test_model_naming; end def test_errors_aref; end def test_errors_full_messages; end end end end Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br ActiveRecord-like http://github.com/plataformatec/mail_form Ótimo exemplo de uso
do ActiveModel Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Menos hacks! Reusabilidade OMG! Sunday, November
6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Nova API select where order limit
offset from joins includes group having lock readonly Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Nova API Post.find(:all, :order => "published_at
desc", :limit => 10) Rails 2.3 Rails 3 Post.order("published_at desc").limit(10) Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Nova API Rails 2.3 Rails 3
Post.all(:conditions => ["published_at <= ?", Time.now], :include => :comments) Post.where("published_at <= ?", Time.now).includes(:comments) Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Lazy loading Job.find(:all, :conditions => {:published
=> true}) Job.where(:published => true) Faz um query no DB imediatamente e retorna um array de Jobs Não faz query no DB, retorna um ActiveRecord::Relation Rails 2.3 Rails 3 Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Lazy loading # app/controllers/jobs_controller.rb class JobsController
< ApplicationController def index @jobs = Jobs.where(:published => true).order("created_at DESC") end end # app/views/jobs/index.html.erb <% cache do %> <% @jobs.each do |job| %> ... <% end %> <% end %> Sunday, November 6, 11

< ApplicationController def index @jobs = Jobs.where(:published => true).order("created_at DESC") end end # app/views/jobs/index.html.erb <% cache do %> <% @jobs.each do |job| %> ... <% end %> <% end %> Não realiza query no DB Sunday, November 6, 11

< ApplicationController def index @jobs = Jobs.where(:published => true).order("created_at DESC") end end # app/views/jobs/index.html.erb <% cache do %> <% @jobs.each do |job| %> ... <% end %> <% end %> Só aqui que será feito a query no DB Não realiza query no DB Sunday, November 6, 11

< ApplicationController def index @jobs = Jobs.where(:published => true).order("created_at DESC") end end # app/views/jobs/index.html.erb <% cache do %> <% @jobs.each do |job| %> ... <% end %> <% end %> Só aqui que será feito a query no DB Não realiza query no DB Se estiver cacheado, a query não é disparada! Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Chainability: it “quacks” like named_scope cars
= Car.where(:colour => 'black') black_fancy_cars = cars.order('cars.price DESC').limit(10) black_cheap_cart = cars.order('cars.price ASC').limit(10) Sunday, November 6, 11

= Car.where(:colour => 'black') black_fancy_cars = cars.order('cars.price DESC').limit(10) black_cheap_cart = cars.order('cars.price ASC').limit(10) ActiveRecord::Relation Sunday, November 6, 11

= Car.where(:colour => 'black') black_fancy_cars = cars.order('cars.price DESC').limit(10) black_cheap_cart = cars.order('cars.price ASC').limit(10) ActiveRecord::Relation Reaproveitar uma Relation e encadear mais ﬁnders Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Falando em named_scope... class Post <
ActiveRecord::Base has_many :comments scope :published, where('posts.published_at is not null') scope :recent, published.order("posts.published_at desc").limit(10) end class Comment < ActiveRecord::Base belongs_to :post scope :from_published_posts, joins(:post) & Post.published end Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Falando em named_scope... class Post <
ActiveRecord::Base has_many :comments scope :published, where('posts.published_at is not null') scope :recent, published.order("posts.published_at desc").limit(10) end class Comment < ActiveRecord::Base belongs_to :post scope :from_published_posts, joins(:post) & Post.published end DRY Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Mas e sobre o ARel que
tanto se fala? Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br ARel == Relational Algebra ARel !=
ActiveRecord::Relation Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Código mais limpo OMG! Sunday, November
6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br def index @users = User.all respond_to
do |format| format.html # index.html.erb format.xml { render :xml => @users } end end Rails 2.3 Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Rails 3.0 respond_to :html, :xml def
index @users = User.all respond_with(@users) end Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br 3 variáveis Formato do request Verbo
HTTP Status do recurso Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br def create @user = User.new(params[:user]) respond_to
do |format| if @user.save format.html { redirect_to @user, :notice => 'User was successfully created' } format.xml { render :xml => @user, :status => :created, :location => @user } else format.html { render :action => "new" } format.xml { render :xml => @user.errors, :status => :unprocessable_entity } end end end Rails 2.3 Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Rails 3.0 def create @user =
User.new(params[:user]) flash[:notice] = 'User was successfully created' if @user.save respond_with(@user) end Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br respond_with(@users) ActionController::Responder Formato do request Verbo
HTTP Status do recurso Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br respond_with(@users) ActionController::Responder to_code Formato do request
Verbo HTTP Status do recurso Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Responders Customizados Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br github.com/plataformatec/responders Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br github.com/plataformatec/responders FlashResponder: seta o ﬂash baseado
no controller, na action e no status do recurso Sunday, November 6, 11

no controller, na action e no status do recurso HttpCacheResponder: adiciona o cabeçalho HTTP Last-Modiﬁed para requests de API Sunday, November 6, 11

no controller, na action e no status do recurso HttpCacheResponder: adiciona o cabeçalho HTTP Last-Modiﬁed para requests de API CollectionResponder: altera o redirecionamento para a action :index ao criar/atualizar um recurso Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br DRY OMG! Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br remote_form_for(@post) Unobtrusive Javascript: Rails 2.3 link_to
'Destroy', post, :confirm => 'Are you sure?',:method => :delete Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br remote_form_for(@post) Unobtrusive Javascript: Rails 2.3 <form
action="/posts" class="new_post" id="new_post" method="post" onsubmit="new Ajax.Request('/posts', {asynchronous:true, evalScripts:true, parameters:Form.serialize(this)}); return false;"> link_to 'Destroy', post, :confirm => 'Are you sure?',:method => :delete Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br remote_form_for(@post) Unobtrusive Javascript: Rails 2.3 <form
action="/posts" class="new_post" id="new_post" method="post" onsubmit="new Ajax.Request('/posts', {asynchronous:true, evalScripts:true, parameters:Form.serialize(this)}); return false;"> link_to 'Destroy', post, :confirm => 'Are you sure?',:method => :delete <a href="/posts/1" onclick="if (confirm('Are you sure?')) { var f = document.createElement('form'); f.style.display = 'none'; this.parentNode.appendChild(f); f.method = 'POST'; f.action = this.href;var m = document.createElement('input'); m.setAttribute('type', 'hidden'); m.setAttribute('name', '_method'); m.setAttribute('value', 'delete'); f.appendChild(m);var s = document.createElement('input'); s.setAttribute('type', 'hidden'); s.setAttribute('name', 'authenticity_token'); s.setAttribute('value', 'LM2fEF6HuRWdYUZdEumWlemhI6iDPH97pqWhO4jEpiU='); f.appendChild(s);f.submit(); };return false;">Destroy</a> Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Unobtrusive Javascript: Rails 3 form_for(@posts, :remote
=> true) <form action="/posts" class="new_post" data-remote="true" id="new_post" method="post"> Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Unobtrusive Javascript: Rails 3 link_to 'Destroy',
post, :confirm => 'Are you sure?', :method => :delete <a href="/posts/1" data-confirm="Are you sure?" data-method="delete" rel="nofollow">Destroy</a> Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br JS para todos os gostos •
Prototype: default • jQuery: http://github.com/rails/jquery-ujs • MooTools: http://mootools.net/forge/p/rails_3_driver • Você pode fazer o seu! Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Javascript no Rails 3 Sunday, November
6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br HTML 5 custom data attributes JS
driver para cada framework Agnosticismo de Javascript Javascript no Rails 3 Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br • link_to_remote • observe_ﬁeld • form_remote_tag
• submit_to_remote • periodically_call_remote • remote_form_for • observe_form • button_to_remote Helpers Deprecados no Rails 3 http://github.com/rails/prototype_legacy_helper Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Agnosticismo + HTML 5 OMG! JQUERY!

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br XSS protection <%= @job.title %> <%=
h @job.title %> Rails 2.3: unsafe por default safe unsafe <%= @job.title %> <%= raw @job.title %> Rails 3: safe por default safe unsafe Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Helpers que retornam HTML module ApplicationHelper
def strong(content) "<strong>#{h content}</strong>".html_safe end end Sunday, November 6, 11

def strong(content) "<strong>#{h content}</strong>".html_safe end end Dicas: 1. Certiﬁcar-se de que todo input está sendo escapado Sunday, November 6, 11

def strong(content) "<strong>#{h content}</strong>".html_safe end end Dicas: 1. Certiﬁcar-se de que todo input está sendo escapado 2. Chamar html_safe no output Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Segurança OMG! Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Agora... como eu começo a usar
tudo isso que está disponível no Rails 3? Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Para começar rsrails$ gem install rails
--pre ... Successfully installed rails-3.0.0.rc 23 gems installed rsrails$ rails -v Rails 3.0.0.rc Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Para atualizar Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br Para atualizar • rails upgrade plugin:
• http://github.com/rails/rails_upgrade Sunday, November 6, 11

• http://github.com/rails/rails_upgrade • rails upgrade handbook: • http://www.railsupgradehandbook.com/ Sunday, November 6, 11

• http://github.com/rails/rails_upgrade • rails upgrade handbook: • http://www.railsupgradehandbook.com/ • screencasts “Upgrading to Rails 3”: • http://railscasts.com/, Episódios #225, #226 e #227 Sunday, November 6, 11

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br http://github.com/plataformatec Tem muito mais aqui! ?!

Carlos Antonio @cantoniodasilva blog.plataformatec.com.br blog twitter ID http://github.com/plataformatec Tem muito
mais aqui! ?! Sunday, November 6, 11

Rails 3 @ RS on Rails 2010

Rails 3 @ RS on Rails 2010

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