Takatsugu.ishioka

Gemfile

@@ -15,7 +15,7 @@ group :assets do
   gem 'coffee-rails', '~> 3.2.1'
 
   # See https://github.com/sstephenson/execjs#readme for more supported runtimes
-  # gem 'therubyracer', :platform => :ruby
+   gem 'therubyracer', :platform => :ruby
 
   gem 'uglifier', '>= 1.0.3'
 end

Gemfile.lock

@@ -67,6 +67,7 @@ GEM
     json (1.7.3)
     launchy (2.1.0)
       addressable (~> 2.2.6)
+    libv8 (3.3.10.4)
     libwebsocket (0.1.3)
       addressable
     mail (2.4.4)
@@ -140,6 +141,8 @@ GEM
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
     sqlite3 (1.3.6)
+    therubyracer (0.10.1)
+      libv8 (~> 3.3.10)
     thor (0.14.6)
     tilt (1.3.3)
     treetop (1.4.10)
@@ -166,4 +169,5 @@ DEPENDENCIES
   rspec-rails (~> 2.0)
   sass-rails (~> 3.2.3)
   sqlite3
+  therubyracer
   uglifier (>= 1.0.3)

app/controllers/books_controller.rb

@@ -16,6 +16,7 @@ def index
   # GET /books/1
   # GET /books/1.json
   def show
+    @memo = Memo.new
     respond_to do |format|
       format.html # show.html.erb
       format.xml { render xml: @book }

app/models/book.rb

@@ -1,6 +1,7 @@
 # encoding: UTF-8
 class Book < ActiveRecord::Base
   attr_accessible :memo, :purchased_on, :title
+  has_many :memos, :dependent => :destroy
   validates :title, :presence => true
 
   before_create :total_books_count

app/views/books/show.html.erb

@@ -15,6 +15,19 @@
   <%= @book.purchased_on %>
 </p>
 
+<div>
+  <b>Description:</b><br />
+<% @book.memos.each do |memo| %>
+  <%= link_to 'Remove', memo, confirm: 'Are you sure?', method: :delete %>
+  <pre><%= memo.description %></pre>
+  <hr/>
+  <br />
+<% end %>
 
+<%= form_for @memo, :url => book_memos_path(@book) do |f| %>
+  <%= f.text_area :description %><br />
+  <%= f.submit %><br />
+<% end %>
+</div>
 <%= link_to 'Edit', edit_book_path(@book) %> |
 <%= link_to 'Back', books_path %>

config/routes.rb

@@ -1,6 +1,10 @@
 BookMemo2::Application.routes.draw do
-  resources :books
+
+  resources :memos
 
+  resources :books do
+    resources :memos
+  end
   # The priority is based upon order of creation:
   # first created -> highest priority.
 

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20120526050801) do
+ActiveRecord::Schema.define(:version => 20120615135737) do
 
   create_table "books", :force => true do |t|
     t.string   "title"
@@ -21,4 +21,11 @@
     t.datetime "updated_at",   :null => false
   end
 
+  create_table "memos", :force => true do |t|
+    t.integer  "book_id"
+    t.text     "description"
+    t.datetime "created_at",  :null => false
+    t.datetime "updated_at",  :null => false
+  end
+
 end

spec/views/books/show.html.erb_spec.rb

@@ -6,12 +6,13 @@
       :title => "Title",
       :memo => "MyText"
     ))
+    @memo = Memo.new
   end
 
   it "renders attributes in <p>" do
     render
     # Run the generator again with the --webrat flag if you want to use webrat matchers
-    rendered.should match(/Title/)
-    rendered.should match(/MyText/)
+     rendered.should match(/Title/)
+     rendered.should match(/MyText/)
   end
 end