romansklenar

• http://edgeguides.rubyonrails.org/4_1_release_notes.html
• http://coherence.io/blog/2013/12/17/whats-new-in-rails-4-1.html
• http://www.slideshare.net/godfreykfc/rails-41
• https://gist.github.com/chancancode/7781341
• http://edgeguides.rubyonrails.org/upgrading_ruby_on_rails.html#upgrading-from-rails-4-0-to-rails-4-1

romansklenar

class Player
  def play_turn(warrior)
    warrior.walk!
  end
end

romansklenar

rails _3.2.15_ new rails_update --database=postgresql --skip-bundle
rails _4.1.0_  new rails_update --database=postgresql --skip-bundle

romansklenar

# Additional translations at http://github.com/plataformatec/devise/wiki/I18n

cs:
  errors:
    messages:
      already_confirmed: 'byl již potvrzen, prosím, zkuste se přihlásit'
      confirmation_period_expired: 'musí být potvrzen během %{period}, požádejte prosím o nový'
      expired: 'vypršel, požádejte prosím o nový'
      not_found: 'nenalezen'
      not_locked: 'nebyl uzamčen'

romansklenar

<?php


/**
 * Provide very simple abstraction above database row (DibiRow replacement)
 *
 * @author     Roman Sklenář
 * @copyright  Copyright (c) 2009 Roman Sklenář (http://romansklenar.cz)
 * @license    New BSD License
 * @version    0.1

romansklenar

romansklenar

class Foo < ActiveRecord::Base
  attr_accessor :timestamp_control

  after_initialize { self.timestamp_control ||= Time.zone.now }
  
  before_validation :overwrite_check
  
  def overwrite_check
    errors[:base] << I18n.t('errors.messages.overwritten') if updated_at > timestamp_control
  end

romansklenar

Killing Rails observers

• decreases startup time by not loading all your models
• makes it possible to preload config/environment.rb and still test models -> spin/zeus
• makes dependencies obvious
• replaces ActiveRecord magic with ruby
• makes your app Rails 4 ready

Before

romansklenar

require 'open-uri'
require 'roo'

apple = Company.create! do |company|
  company.name = "Apple Inc."
  company.code = "AAPL"
  company.messages_url = "http://finance.yahoo.com/rss/headline?s=#{company.code}"
  company.stocks_url = "http://ichart.finance.yahoo.com/table.csv?s=#{company.code}"
end

romansklenar

# company_names = (1..15).map { Faker::Company.name }
company_names = %w[Design Marketing Branding Stores Mobile Desktop Software Hardware] # departments
data = (1..500).map do
  [ company_names.sample,
    name = Faker::Name.name,
    Faker::Internet.free_email(name.parameterize),
    Faker::Internet.user_name(name.parameterize),
    SecureRandom.urlsafe_base64(10).gsub('-', '') ]
end