Update to new version of Getting Started Guide - much more Railsish and works on beta 3

Author: mikel

app/controllers/application_controller.rb

@@ -1,3 +1,11 @@
 class ApplicationController < ActionController::Base
   protect_from_forgery
+  
+  private
+  
+  def authenticate
+    authenticate_or_request_with_http_basic do |user_name, password|
+      user_name == 'admin' && password == 'password'
+    end
+  end
 end

app/controllers/comments_controller.rb

@@ -0,0 +1,18 @@
+class CommentsController < ApplicationController
+
+  before_filter :authenticate, :only => [:destroy]
+
+  def create
+    @post = Post.find(params[:post_id])
+    @comment = @post.comments.create(params[:comment])
+    redirect_to post_path(@post)
+  end
+  
+  def destroy
+    @post = Post.find(params[:post_id])
+    @comment = @post.comments.find(params[:id])
+    @comment.destroy
+    redirect_to post_path(@post)
+  end
+
+end

app/controllers/home_controller.rb

@@ -0,0 +1,5 @@
+class HomeController < ApplicationController
+  def index
+  end
+
+end

app/controllers/posts_controller.rb

@@ -0,0 +1,91 @@
+class PostsController < ApplicationController
+
+  before_filter :authenticate, :except => [:index, :show]
+
+  # GET /posts
+  # GET /posts.xml
+  def index
+    @posts = Post.all
+
+    respond_to do |format|
+      format.html # index.html.erb
+      format.xml  { render :xml => @posts }
+    end
+  end
+
+  # GET /posts/1
+  # GET /posts/1.xml
+  def show
+    @post = Post.find(params[:id])
+
+    respond_to do |format|
+      format.html # show.html.erb
+      format.xml  { render :xml => @post }
+    end
+  end
+
+  # GET /posts/new
+  # GET /posts/new.xml
+  def new
+    @post = Post.new
+
+    respond_to do |format|
+      format.html # new.html.erb
+      format.xml  { render :xml => @post }
+    end
+  end
+
+  # GET /posts/1/edit
+  def edit
+    @post = Post.find(params[:id])
+  end
+
+  # POST /posts
+  # POST /posts.xml
+  def create
+    @post = Post.new(params[:post])
+
+    respond_to do |format|
+      if @post.save
+        format.html { redirect_to(@post,
+                      :notice => 'Post was successfully created.') }
+        format.xml  { render :xml => @post,
+                      :status => :created, :location => @post }
+      else
+        format.html { render :action => "new" }
+        format.xml  { render :xml => @post.errors,
+                      :status => :unprocessable_entity }
+      end
+    end
+  end
+
+  # PUT /posts/1
+  # PUT /posts/1.xml
+  def update
+    @post = Post.find(params[:id])
+
+    respond_to do |format|
+      if @post.update_attributes(params[:post])
+        format.html { redirect_to(@post, 
+                      :notice => 'Post was successfully updated.') }
+        format.xml  { head :ok }
+      else
+        format.html { render :action => "edit" }
+        format.xml  { render :xml => @post.errors,
+                      :status => :unprocessable_entity }
+      end
+    end
+  end
+
+  # DELETE /posts/1
+  # DELETE /posts/1.xml
+  def destroy
+    @post = Post.find(params[:id])
+    @post.destroy
+
+    respond_to do |format|
+      format.html { redirect_to(posts_url) }
+      format.xml  { head :ok }
+    end
+  end
+end

app/helpers/comments_helper.rb

@@ -0,0 +1,2 @@
+module CommentsHelper
+end

app/helpers/home_helper.rb

@@ -0,0 +1,2 @@
+module HomeHelper
+end

app/helpers/posts_helper.rb

@@ -0,0 +1,5 @@
+module PostsHelper
+  def join_tags(post)
+    post.tags.map { |t| t.name }.join(", ") 
+  end
+end

app/models/comment.rb

@@ -0,0 +1,3 @@
+class Comment < ActiveRecord::Base
+  belongs_to :post
+end

app/models/post.rb

@@ -0,0 +1,12 @@
+class Post < ActiveRecord::Base
+  validates :name,  :presence => true
+  validates :title, :presence => true,
+                    :length => { :minimum => 5 }
+
+  has_many :comments, :dependent => :destroy
+  has_many :tags
+
+  accepts_nested_attributes_for :tags, :allow_destroy => :true,
+    :reject_if => proc { |attrs| attrs.all? { |k, v| v.blank? } }
+  
+end

app/models/tag.rb

@@ -0,0 +1,3 @@
+class Tag < ActiveRecord::Base
+  belongs_to :post
+end

app/views/comments/_comment.html.erb

@@ -0,0 +1,15 @@
+<p>
+  <b>Commenter:</b>
+  <%= comment.commenter %>
+</p>
+
+<p>
+  <b>Comment:</b>
+  <%= comment.body %>
+</p>
+
+<p>
+  <%= link_to 'Destroy Comment', [comment.post, comment],
+               :confirm => 'Are you sure?',
+               :method => :delete %>
+</p>

app/views/comments/_form.html.erb

@@ -0,0 +1,15 @@
+<% form_for([@post, @post.comments.build]) do |f| %>
+  <%= f.error_messages %>
+
+  <div class="field">
+    <%= f.label :commenter %><br />
+    <%= f.text_field :commenter %>
+  </div>
+  <div class="field">
+    <%= f.label :body %><br />
+    <%= f.text_area :body %>
+  </div>
+  <div class="actions">
+    <%= f.submit %>
+  </div>
+<% end %>

app/views/home/index.html.erb

@@ -0,0 +1,2 @@
+<h1>Hello, Rails!</h1>
+<%= link_to "My Blog", posts_path %>

app/views/layouts/posts.html.erb

@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>Posts: <%= controller.action_name %></title>
+  <%= stylesheet_link_tag 'scaffold' %>
+  <%= javascript_include_tag :defaults %>
+  <%= csrf_meta_tag %>
+</head>
+<body style="background: #EEEEEE;">
+
+<p class="notice"><%= notice %></p>
+
+<%= yield %>
+
+</body>
+</html>

app/views/posts/_form.html.erb

@@ -0,0 +1,23 @@
+<% @post.tags.build %>
+<% form_for(@post) do |post_form| %>
+  <%= post_form.error_messages %>
+
+  <div class="field">
+    <%= post_form.label :name %><br />
+    <%= post_form.text_field :name %>
+  </div>
+  <div class="field">
+    <%= post_form.label :title %><br />
+    <%= post_form.text_field :title %>
+  </div>
+  <div class="field">
+    <%= post_form.label :content %><br />
+    <%= post_form.text_area :content %>
+  </div>
+  <h2>Tags</h2>
+  <%= render :partial => 'tags/form',
+             :locals => {:form => post_form} %>
+  <div class="actions">
+    <%= post_form.submit %>
+  </div>
+<% end %>

app/views/posts/edit.html.erb

@@ -0,0 +1,6 @@
+<h1>Editing post</h1>
+
+<%= render 'form' %>
+
+<%= link_to 'Show', @post %> |
+<%= link_to 'Back', posts_path %>

app/views/posts/index.html.erb

@@ -0,0 +1,27 @@
+<h1>Listing posts</h1>
+
+<table>
+  <tr>
+    <th>Name</th>
+    <th>Title</th>
+    <th>Content</th>
+    <th></th>
+    <th></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>
+  </tr>
+<% end %>
+</table>
+
+<br />
+
+<%= link_to 'New post', new_post_path %>

app/views/posts/new.html.erb

@@ -0,0 +1,5 @@
+<h1>New post</h1>
+
+<%= render 'form' %>
+
+<%= link_to 'Back', posts_path %>

app/views/posts/show.html.erb

@@ -0,0 +1,30 @@
+<p>
+  <b>Name:</b>
+  <%= @post.name %>
+</p>
+
+<p>
+  <b>Title:</b>
+  <%= @post.title %>
+</p>
+
+<p>
+  <b>Content:</b>
+  <%= @post.content %>
+</p>
+
+<p>
+  <b>Tags:</b>
+  <%= join_tags(@post) %>
+</p>
+
+<h2>Comments</h2>
+<%= render :partial => "comments/comment", 
+           :collection => @post.comments %>
+
+<h2>Add a comment:</h2>
+<%= render "comments/form" %>
+
+
+<%= link_to 'Edit Post', edit_post_path(@post) %> |
+<%= link_to 'Back to Posts', posts_path %> |

app/views/tags/_form.html.erb

@@ -0,0 +1,12 @@
+<% form.fields_for :tags do |tag_form| %>
+  <div class="field">
+    <%= tag_form.label :name, 'Tag:' %>
+    <%= tag_form.text_field :name %>
+  </div>
+  <% unless tag_form.object.nil? || tag_form.object.new_record? %>
+    <div class="field">
+      <%= tag_form.label :_destroy, 'Remove:' %>
+      <%= tag_form.check_box :_destroy %>
+    </div>
+  <% end %>
+<% end %>

config/initializers/cookie_verification_secret.rb

@@ -4,4 +4,4 @@
 # If you change this key, all old signed cookies will become invalid!
 # Make sure the secret is at least 30 characters and all random, 
 # no regular words or you'll be exposed to dictionary attacks.
-ActionController::Base.cookie_verifier_secret = 'b49646ea6d739eaf732c9977a35fae4928c719ce02bf81adec251b6e0301d6866083a9ea329af9dc04d35bf73c742a6e1febd947fbb0a4a8a0d57e17c9e5aa31'
+ActionController::Base.cookie_verifier_secret = 'f33f6335d4833a906db65431f40791d2c7e035d13144e746091e5b13fa3b45092e9fff4f923f4b7b8744ec5e4e683a4c3323a31055a7ce6e450d0e5175f13e30'

config/initializers/session_store.rb

@@ -6,7 +6,7 @@
 # no regular words or you'll be exposed to dictionary attacks.
 ActionController::Base.session = {
   :key    => '_blog_session',
-  :secret => 'fbb4abe4b094181f81debf66995a0b7780ff1a3e51057b2844f62edd3dd4ea90c7f5e4c2bead86d1994e5b83432622c33f45719573544204348e6bc47514d851'
+  :secret => '5a6015623c2ac0bcc7f2f63e72d826daeca73cb7865b055ffbc7e353b8e4a70e71543078efe7c5386822495ad3a444e5200bbebc7320ea47e7b28af663c60ff1'
 }
 
 # Use the database for sessions instead of the cookie-based default,

config/routes.rb

@@ -1,4 +1,10 @@
 Blog::Application.routes.draw do |map|
+  resources :posts do
+    resources :comments
+  end
+  
+  root :to => "home#index"
+  
   # The priority is based upon order of creation:
   # first created -> highest priority.
 

db/migrate/20100208023203_create_posts.rb

@@ -0,0 +1,15 @@
+class CreatePosts < ActiveRecord::Migration
+  def self.up
+    create_table :posts do |t|
+      t.string :name
+      t.string :title
+      t.text :content
+
+      t.timestamps
+    end
+  end
+
+  def self.down
+    drop_table :posts
+  end
+end

db/migrate/20100208023952_create_comments.rb

@@ -0,0 +1,15 @@
+class CreateComments < ActiveRecord::Migration
+  def self.up
+    create_table :comments do |t|
+      t.string :commenter
+      t.text :body
+      t.references :post
+
+      t.timestamps
+    end
+  end
+
+  def self.down
+    drop_table :comments
+  end
+end

db/migrate/20100208025005_create_tags.rb

@@ -0,0 +1,14 @@
+class CreateTags < ActiveRecord::Migration
+  def self.up
+    create_table :tags do |t|
+      t.string :name
+      t.references :post
+
+      t.timestamps
+    end
+  end
+
+  def self.down
+    drop_table :tags
+  end
+end