Add index and links section to Getting started guide

guides/code/getting_started/app/controllers/home_controller.rb

-class HomeController < ApplicationController
+class WelcomeController < ApplicationController
   def index
   end
 

guides/code/getting_started/app/controllers/posts_controller.rb

 class PostsController < ApplicationController
 
+  def index
+    @posts = Post.all
+  end
 
   def show
     @post = Post.find(params[:id])

guides/code/getting_started/app/helpers/home_helper.rb

-module HomeHelper
+module WelcomeHelper
 end

guides/code/getting_started/app/views/posts/index.html.erb

 <h1>Listing posts</h1>
 
+<%= link_to 'New post', :action => :new %>
+
 <table>
   <tr>
-    <th>Name</th>
     <th>Title</th>
-    <th>Content</th>
-    <th></th>
-    <th></th>
+    <th>Text</th>
     <th></th>
   </tr>
 
 <% @posts.each do |post| %>
   <tr>
-    <td><%= post.name %></td>
     <td><%= post.title %></td>
-    <td><%= post.content %></td>
-    <td><%= link_to 'Show', post %></td>
-    <td><%= link_to 'Edit', edit_post_path(post) %></td>
-    <td><%= link_to 'Destroy', post, confirm: 'Are you sure?', method: :delete %></td>
+    <td><%= post.text %></td>
+    <td><%= link_to 'Show', :action => :show, :id => post.id %>
   </tr>
 <% end %>
 </table>
-
-<br />
-
-<%= link_to 'New Post', new_post_path %>

guides/code/getting_started/app/views/posts/new.html.erb

@@ -2,4 +2,4 @@
 
 <%= render 'form' %>
 
-<%#= link_to 'Back', posts_path %>
+<%= link_to 'Back', :action => :index %>

guides/code/getting_started/app/views/posts/show.html.erb

@@ -7,3 +7,5 @@
   <strong>Text:</strong>
   <%= @post.text %>
 </p>
+
+<%= link_to 'Back', :action => :index %>

guides/code/getting_started/app/views/home/index.html.erb → guides/code/getting_started/app/views/welcome/index.html.erb

 <h1>Hello, Rails!</h1>
-<%= link_to "My Blog", posts_path %>
+<%= link_to "My Blog", :controller => "posts" %>

guides/code/getting_started/config/routes.rb

@@ -3,6 +3,7 @@
   #   resources :comments
   # end
 
+  get "posts" => "posts#index"
   get "posts/new"
   post "posts/create"
   get "posts/:id" => "posts#show"
@@ -56,7 +57,7 @@
 
   # You can have the root of your site routed with "root"
   # just remember to delete public/index.html.
-  root :to => "home#index"
+  root :to => "welcome#index"
 
   # See how all your routes lay out with "rake routes"
 

guides/code/getting_started/test/functional/home_controller_test.rb

 require 'test_helper'
 
-class HomeControllerTest < ActionController::TestCase
+class WelcomeControllerTest < ActionController::TestCase
   test "should get index" do
     get :index
     assert_response :success

guides/source/getting_started.textile

@@ -540,20 +540,121 @@ be able to create a post. Try it!
 
 !images/getting_started/show_action_for_posts.png(Show action for posts)!
 
-h4. Adding a Link
+h4. Listing all posts
 
-To hook the posts up to the home page you've already created, you can add a link
-to the home page. Open +app/views/welcome/index.html.erb+ and modify it as follows:
+We still need a way to list all our posts, so let's do that. As usual,
+we'll need a route, a controller action, and a view:
+
+<ruby>
+# Add to config/routes.rb
+get "posts" => "posts#index"
+
+# Add to app/controllers/posts_controller.rb
+def index
+  @posts = Post.all
+end
+</ruby>
+
++app/view/posts/index.html.erb+:
+
+<erb>
+<h1>Listing posts</h1>
+
+<table>
+  <tr>
+    <th>Title</th>
+    <th>Text</th>
+  </tr>
+
+<% @posts.each do |post| %>
+  <tr>
+    <td><%= post.title %></td>
+    <td><%= post.text %></td>
+  </tr>
+<% end %>
+</table>
+</erb>
+
+h4. Adding links
+
+You can now create, show, and list posts. But it's difficult to navigate
+through pages, so let's add some links.
+
+Open +app/views/welcome/index.html.erb+ and modify it as follows:
 
 <ruby>
 <h1>Hello, Rails!</h1>
-<%= link_to "My Blog", posts_path %>
+<%= link_to "My Blog", :controller => "posts" %>
 </ruby>
 
 The +link_to+ method is one of Rails' built-in view helpers. It creates a
 hyperlink based on text to display and where to go - in this case, to the path
 for posts.
 
+Let's add links to the other views as well.
+
+<erb>
+# app/views/posts/index.html.erb
+
+<h1>Listing posts</h1>
+
+<%= link_to 'New post', :action => :new %>
+
+<table>
+  <tr>
+    <th>Title</th>
+    <th>Text</th>
+    <th></th>
+  </tr>
+
+<% @posts.each do |post| %>
+  <tr>
+    <td><%= post.title %></td>
+    <td><%= post.text %></td>
+    <td><%= link_to 'Show', :action => :show, :id => post.id %></td>
+  </tr>
+<% end %>
+</table>
+
+# app/views/posts/new.html.erb
+
+<%= form_for :post do |f| %>
+  <p>
+    <%= f.label :title %><br>
+    <%= f.text_field :title %>
+  </p>
+
+  <p>
+    <%= f.label :text %><br>
+    <%= f.text_area :text %>
+  </p>
+
+  <p>
+    <%= f.submit %>
+  </p>
+<% end %>
+
+<%= link_to 'Back', :action => :index %>
+
+# app/views/posts/show.html.erb
+
+<p>
+  <strong>Title:</strong>
+  <%= @post.title %>
+</p>
+
+<p>
+  <strong>Text:</strong>
+  <%= @post.text %>
+</p>
+
+<%= link_to 'Back', :action => :index %>
+</erb>
+
+TIP: If you want to link to an action in the same controller, you don't
+need to specify the +:controller+ option, as Rails will use the current
+controller by default.
+
 h4. Working with Posts in the Browser
 
 Now you're ready to start working with posts. To do that, navigate to