パーフェクト Ruby on Rails 2章 まとめ ref: http://qiita.com/libitte/items/2be4c545d2fbc5c23002

file0.rb

scope :written_about, ->(theme) { where("name like ?", "%#{theme}%")}

file1.txt

bundle exec rake routes

file10.rb

class ProfileController < ApplicationController
  def update
    user = current_user
    user.update(user_params)
  end

  private

    def user_params
      params.require(:user).permit(:name, :email)
    end
end

file11.rb

def show
  @book = Book.find(params[:id])
end

file12.rb

class BookController
  def show
    @book = Book.find(params[:id])
    respond_to do |format|
      format.html
      format.csv
    end
  end
end

file13.rb

format.xml { render xml: @book }

file14.rb

<%= yield %>

file15.erb

<ul>
  <%= 3.times do |n| %>
    <li>Number = <%= n %></li>
  <% end %>
</ul>

file16.txt

%html
  %head
    %title Hi
  %body
    %h1 #header Header
    - 3.times do |i|
      %p Item
      %p= i

file17.txt

doctype html
html
  head
    title Hi
  body
    h1 id="header" Header
    - 3.times do
      p Item

file18.rb

url_for(controller: :users, action: :index)
#=> /users

url_for(controller: :users, action: :index, id: 1234, detailed: 'true')
#=> /users/1234?detailed=true

file19.erb

<% form_for(@publisher) do |f| %>

<% end %>

file2.rb

resources :publishers

file20.erb

<%= raw "<script>alert('sample');</script>" %>

file21.erb

<%= "<script>alert('sample');</script>".html_safe %>

file22.rb

json.extract! @book, :id, :name, :price, :created_at

file23.rb

json.name_with_id "#{@book.id} - #{@book.name}"

json.publisher do
  json.name @book.publisher.name
  json.addredd @book.publisher.address
end

unless @book.high_price?
  json.low_price true
end

file3.rb

resources :publisher do
  resources :books
    member do
      get 'detail'
     end
  end
end

file4.rb

resource :profile

file5.rb

resource :profile, only: %i{show edit update}

file6.rb

rescue_from LoginFailed, with: :login_failed

def login_failed
  render template: 'shared/login_failed', status: 401
end

file7.rb

class LoginController < ApplicationController
 def create
   @user = User.where(name: params[:name], password: params[:password]).first
   raise LoginFailed unless @user
  end
end

file8.rb

user = User.find(1)
user.update(name: "Bob", email: "[email protected]")

file9.rb

class ProfileController < ApplicationController
  def update
    user = current_user
    user.update(params[:user])
  end
end