Bahanix

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js"></script>
= simple_form_for(@account) do |f|
  = f.error_notification

  = f.input :type, collection:['iban', 'rib'], include_blank: false

  #iban
    .inputs
      = f.input :iban, :include_blank => false
      = f.input :bic, :include_blank => false

Bahanix

### Configurer git et vim

git config --global core.editor "vim"
vim ~/.vimrc

syn on
set tabstop=2
set shiftwidth=2
set expandtab
match Todo /\s\+$/

Bahanix

# app/views/users/home.html.erb
<% if @current_user %>
  <h1>Bienvenue <%= @current_user.name %> !</h1>
  <%= form_tag "/users/login", method: :delete do %>
    <input type="submit" value="Déconnexion" />
  <% end %>
<% else %>
  <h1>Bienvenue visiteur anonyme !</h1>
  <a href="/users/login">S'identifier</a>
<% end %>

Bahanix

# app/views/users/index.html.erb
<h1>Liste des utilisateurs</h1>
<ul>
  <% @users.each do |user| %>
    <li><%= user.id %></li>
  <% end %>
</ul>

Bahanix

# db/migrates/*_add_locale_to_users.rb
class AddLocaleToUsers < ActiveRecord::Migration
  def change
    add_column :users, :locale, :string, default: "fr"
  end
end

Bahanix

# app/controllers/application_controller.rb
class ApplicationController < ActionController::Base
  protect_from_forgery with: :exception
  before_action :set_locale

  private

  def set_locale
    if session[:locale]
      I18n.locale = session[:locale]

Bahanix

class User < ActiveRecord::Base
  has_many :posts
end

class Post < ActiveRecord::Base
  belongs_to :user
end

# It will hit 11 times your database, that's bad!
User.limit(10).each do |user|

Bahanix

class User < ActiveRecord::Base
  has_many :posts
  has_many :published_posts, -> { published }, class_name: "Post"
end

class Post < ActiveRecord::Base
  belongs_to :user
  scope :published, -> { where(status: :published) }
end

Bahanix

class User < ActiveRecord::Base
  # Only this class changed
  has_many :posts, compose: :published
end

class Post < ActiveRecord::Base
  belongs_to :user
  scope :published, -> { where(status: :published) }
end

Bahanix

# app/models/concerns/sortable.rb
module Sortable
  extend ActiveSupport::Concern

  included do
    # Model.smart_sort("attribute_a,+attribute_b,-attribute_c")
    # is equivalent to
    # Model.order(attribute_a).order(attribute_b: :asc).order(attribute_c: :desc)
    scope :smart_sort, -> (sort) {
      scope = self.all