cache support

app/controllers/account_controller.rb

@@ -1,5 +1,7 @@
 class AccountController < ApplicationController
   before_filter :login_required, :except => [:login, :logout]
+
+  cache_sweeper :user_sweeper, :only => [:details,:profile]
 
   def profile
     @user = self.current_user if logged_in?

app/controllers/admin_controller.rb

@@ -3,6 +3,8 @@ class AdminController < ApplicationController
   before_filter :signup_first_user, :except => [:signup]
   before_filter :no_more_than_one_signup, :only => [:signup]
 
+  cache_sweeper :post_sweeper, :only => [:new_post]
+
   def signup
     @admin = Admin.new
 

app/controllers/comments_controller.rb

@@ -1,6 +1,8 @@
 class CommentsController < ApplicationController
   before_filter :login_required
 
+  cache_sweeper :comment_sweeper, :only => [:create]
+
   def create
     @comment = Comment.new(params[:comment])
     @comment.talk_id = params[:id]

app/controllers/events_controller.rb

@@ -1,18 +1,27 @@
 class EventsController < ApplicationController
+  caches_page :feed
 
   def index
-    @users = User.find :all, :order => "id DESC", :limit => 10
-    @user_count = User.count
-    @talks = Talk.find :all, :order => "id DESC", :limit => 5
-    @talk_count = Talk.count
-    @posts = Post.find :all, :order => "id DESC"
+    unless fragment_exist?("home_users")
+      @users = User.find :all, :order => "id DESC", :limit => 10
+      @user_count = User.count
+    end
+
+    unless fragment_exist?("home_talks")
+      @talks = Talk.find :all, :order => "id DESC", :limit => 5
+      @talk_count = Talk.count
+    end
+
+    unless fragment_exist?("home_intro")
+      @posts = Post.find :all, :order => "id DESC"
+    end
   end
 
   def feed
     it = []
     it << Post.find(:all, :limit => 20)
     it << Talk.find(:all, :limit => 20)
-    it << Comment.find(:all, :limit => 20)
+    it << Comment.find(:all, :limit => 20, :include => [:talk])
 
     it.flatten!
     it.sort!{|a,b| a.created_at <=> b.created_at}

app/controllers/talks_controller.rb

@@ -1,5 +1,7 @@
 class TalksController < ApplicationController
   before_filter :login_required, :except => [:show, :index]
+
+  cache_sweeper :talk_sweeper, :only => [:create]
 
   def create
     @talk = Talk.new(params[:talk])
@@ -11,6 +13,7 @@ def create
     @talk.save!
 
     flash[:message] = "Talk adicionada :)"
+
     redirect_to root_path
 
   rescue ActiveRecord::RecordInvalid
@@ -33,12 +36,4 @@ def show
   def new
     render :layout => "textile_help"
   end
-
-  def destroy
-    @talk = Talk.find_by_id_and_user_id(params[:id],current_user.id)
-    @talk.destroy
-
-    flash[:message] = "Talk apagada :)"
-    redirect_to root_path
-  end
 end

app/controllers/users_controller.rb

@@ -1,6 +1,8 @@
 class UsersController < ApplicationController
   before_filter :login_required, :only => [:show]
 
+  cache_sweeper :user_sweeper, :only => [:create]
+
   # shows the signup form
   def new
   end
@@ -10,7 +12,10 @@ def show
   end
 
   def index
-    @users = User.find :all, :order => "id DESC"
+    unless fragment_exist?("users_page")
+      @users = User.find :all, :order => "id DESC"
+      @openid_count = User.count :conditions => "identity_url is not null"
+    end
   end
 
   # receives the new user form post

app/sweepers/comment_sweeper.rb

@@ -0,0 +1,15 @@
+class CommentSweeper < ActionController::Caching::Sweeper
+  observe Comment
+
+  def after_create(comment)
+    expire_page("/feed.xml")
+  end
+
+  def after_destroy(comment)
+    expire_page("/feed.xml")
+  end
+
+  def after_update(comment)
+    #expire_page("/feed.xml")
+  end
+end

app/sweepers/post_sweeper.rb

@@ -0,0 +1,18 @@
+class PostSweeper < ActionController::Caching::Sweeper
+  observe Post
+
+  def after_create(post)
+    expire_page("/feed.xml")
+    expire_fragment("home_intro")
+  end
+
+  def after_destroy(post)
+    expire_page("/feed.xml")
+    expire_fragment("home_intro")
+  end
+
+  def after_update(post)
+    expire_page("/feed.xml")
+    expire_fragment("home_intro")
+  end
+end

app/sweepers/talk_sweeper.rb

@@ -0,0 +1,18 @@
+class TalkSweeper < ActionController::Caching::Sweeper
+  observe Talk
+
+  def after_create(talk)
+    expire_page("/feed.xml")
+    expire_fragment("home_talks")
+  end
+
+  def after_destroy(talk)
+    expire_page("/feed.xml")
+    expire_fragment("home_talks")
+  end
+
+  def after_update(talk)
+    expire_page("/feed.xml")
+    expire_fragment("home_talks")
+  end
+end

app/sweepers/user_sweeper.rb

@@ -0,0 +1,20 @@
+class UserSweeper < ActionController::Caching::Sweeper
+  observe User
+
+  def after_create(user)
+    #expire_page("/index.xml")
+    expire_fragment("home_users")
+    expire_fragment("users_page")
+  end
+
+  def after_destroy(user)
+    #expire_page("/index.xml")
+    expire_fragment("home_users")
+    expire_fragment("users_page")
+  end
+
+  def after_update(talk)
+    #expire_page("/index.xml")
+    expire_fragment("home_users")
+  end
+end

app/views/events/feed.xml.builder

@@ -12,18 +12,18 @@ xml.rss "version" => "2.0" do
         when "Comment"
           xml.title "Comentário à sessão '#{item.talk.title}'"
           xml.link "http://barcamp.webreakstuff.com/talks/#{item.talk_id}"
-          xml.description item.body
+          xml.description item.body_html
           xml.guid "#{item.class.to_s.downcase}-#{item.id}-#{item.created_at.strftime("%d%m%Y%H%M%S")}"
         when "Talk"
           xml.title "Nova sessão proposta '#{item.title}'"
           xml.link "http://barcamp.webreakstuff.com/talks/#{item.id}"
-          xml.description item.description
+          xml.description item.description_html
           xml.guid "#{item.class.to_s.downcase}-#{item.id}-#{item.created_at.strftime("%d%m%Y%H%M%S")}"
         when "Post"
           xml.title "Novidades! - #{item.title}"
           xml.link "http://barcamp.webreakstuff.com/"
-          xml.description item.body
-          xml.guid "#{item.class.to_s.downcase}-#{item.id}-#{item.updated_at.strftime("%d%m%Y%H%M%S")}"
+          xml.description item.body_html
+          xml.guid "#{item.class.to_s.downcase}-#{item.id}-#{item.created_at.strftime("%d%m%Y%H%M%S")}"
         end
 		    xml.pubDate(item.updated_at)
       end

app/views/events/index.html.erb

@@ -1,41 +1,47 @@
 <% content_for :intro do %>
-	<div class="yui-b first" id="intro">
-		<h1><img src="/images/mail-24.png" class="icon"> O que é o Barcamp Portugal?</h1>
-		<p>O Barcamp Portugal nasceu em 2006 e pretende ser um ponto de encontro de gente que se junta para falar nos mais variados temas que, normalmente, gravitam em torno de Inovação, Empreendorismo e Web.</p>
-		<p>Este ano, optámos por usar este site em vez da tradicional wiki por permitir uma gestão mais rigorosa dos inscritos (no evento e nas refeições, mais tarde) e esperemos que facilite a comunicação entre as pessoas.</p>
-
-		<h1><img src="/images/mail-24.png" class="icon"> Novidades <a href="/feed.xml"><img src="/images/rss-16.png" class="icon" style="margin-right:0px"></a></h1>
-
-		<% for post in @posts %>
-		<div class="leftbar">
-			<h3><%= post.title %>, <%= post.created_at.strftime("%d/%m/%Y - %H:%M")%></h3>
-			<p><%= white_list post.body_html %><p>
+	<% cache "home_intro" do %>
+		<div class="yui-b first" id="intro">
+			<h1><img src="/images/mail-24.png" class="icon"> O que é o Barcamp Portugal?</h1>
+			<p>O Barcamp Portugal nasceu em 2006 e pretende ser um ponto de encontro de gente que se junta para falar nos mais variados temas que, normalmente, gravitam em torno de Inovação, Empreendorismo e Web.</p>
+			<p>Este ano, optámos por usar este site em vez da tradicional wiki por permitir uma gestão mais rigorosa dos inscritos (no evento e nas refeições, mais tarde) e esperemos que facilite a comunicação entre as pessoas.</p>
+
+			<h1><img src="/images/mail-24.png" class="icon"> Novidades <a href="/feed.xml"><img src="/images/rss-16.png" class="icon" style="margin-right:0px"></a></h1>
+
+			<% for post in @posts %>
+			<div class="leftbar">
+				<h3><%= post.title %>, <%= post.created_at.strftime("%d/%m/%Y - %H:%M")%></h3>
+				<p><%= white_list post.body_html %><p>
+			</div>
+			<% end %>
 		</div>
-		<% end %>
-	</div>
+	<% end %>
 <% end %>
 
-	<div class="yui-u first">
-		<h2><img src="/images/phone.png" class="icon"> Users inscritos</h2>
-		<ul>
-			<%= render :partial => "users/user", :collection => @users %>
-			<% if @users.empty? %>
-				<li>nenhum. ainda :)</li>
+	<% cache "home_users" do %>
+		<div class="yui-u first">
+			<h2><img src="/images/phone.png" class="icon"> Users inscritos (<%=@user_count%>)</h2>
+			<ul>
+				<%= render :partial => "users/user", :collection => @users %>
+				<% if @users.empty? %>
+					<li>nenhum. ainda :)</li>
+				<% end %>
+			</ul>
+			<% if @user_count > 10 %>
+				<a href="/users">Ver a lista completa</a>
 			<% end %>
-		</ul>
-		<% if @user_count > 10 %>
-			<a href="/users">Ver a lista completa</a>
-		<% end %>
-	</div>
-	<div class="yui-u">
-		<h2><img src="/images/text.png" class="icon"> Sessões propostas</h2>
-		<ul>
-			<%= render :partial => "talks/talk", :collection => @talks %>
-			<% if @talks.empty? %>
-				<li>nenhuma. ainda :)</li>
+		</div>
+	<% end %>
+	<% cache "home_talks" do %>
+		<div class="yui-u">
+			<h2><img src="/images/text.png" class="icon"> Sessões propostas</h2>
+			<ul>
+				<%= render :partial => "talks/talk", :collection => @talks %>
+				<% if @talks.empty? %>
+					<li>nenhuma. ainda :)</li>
+				<% end %>
+			</ul>
+			<% if @talk_count > 4 %>
+				<a href="/talks">Ver a lista completa</a>
 			<% end %>
-		</ul>
-		<% if @talk_count > 4 %>
-			<a href="/talks">Ver a lista completa</a>
-		<% end %>
-	</div>
+		</div>
+	<% end %>

app/views/includes/_textile_help.html.erb

@@ -10,6 +10,7 @@ A descrição permite o uso de Textile, uma linguagem de markup que pretende ser
 	<tr><td>Texto +itálico+</td>							<td>&rarr;</td>		<td>Text <em>itálico</em></td></tr>
 	<tr><td>Uma lista<br/><br/>* Um item<br/>* Outro item</td>	<td>&rarr;</td>		<td>Uma lista<ul><li>Um item</li><li>Outro item</li></ul></td></tr>
 	<tr><td>"Link":http://google.com</td>					<td>&rarr;</td>			<td><a href="http://google.com">Link</a></td></tr>
+	<tr><td>Código:<br/>@&lt;script&gt;alert('test');&lt;/script&gt;@</td>					<td>&rarr;</td>			<td>Código:<br/><code><pre>&lt;script&gt;alert('test');&lt;/script&gt;</pre></code></td></tr>
 </table>
 
 Para uma referência mais exaustiva, <%= textile_link "clicar aqui" %>.

app/views/layouts/twocols.html.erb

@@ -6,6 +6,7 @@
 	<%= stylesheet_link_tag "reset-fonts-grids", "base", "screen", :cache => true %>
 	<%= javascript_include_tag :defaults, :cache => true %>
 	<link rel="alternate" type="application/rss+xml" title="Novidades" href="/feed.xml" />
+	<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
 </head>
 <body>
 <div id="doc2" class="yui-t6">

app/views/users/index.html.erb

@@ -1,7 +1,11 @@
-<h2><img src="/images/phone.png" class="icon"> Users inscritos</h2>
-<ul>
-	<%= render :partial => "users/user", :collection => @users %>
-	<% if @users.empty? %>
-		<li>nenhum. ainda :)</li>
-	<% end %>
-</ul>
+<% cache "users_page" do %>
+	Até este momento, estão inscritas <%= @users.size %> pessoas, <%= @openid_count %> das quais usaram OpenID.
+
+	<h2><img src="/images/phone.png" class="icon"> Users inscritos (<%= @users.size %>)</h2>
+	<ul>
+		<%= render :partial => "users/user", :collection => @users %>
+		<% if @users.empty? %>
+			<li>nenhum. ainda :)</li>
+		<% end %>
+	</ul>
+<% end %>

config/environment.rb

@@ -33,6 +33,7 @@
 
   # Add additional load paths for your own custom dirs
   # config.load_paths += %W( #{RAILS_ROOT}/extras )
+  config.load_paths += %W( #{RAILS_ROOT}/app/sweepers )
 
   # Force all environments to use the same logger level
   # (by default production uses :info, the others :debug)
@@ -63,5 +64,5 @@
   # config.active_record.schema_format = :sql
 
   # Activate observers that should always be running
-  config.active_record.observers = :user_observer
+  config.active_record.observers = [:user_observer]
 end

db/migrate/20080705213159_populate_body_html.rb

@@ -0,0 +1,18 @@
+class PopulateBodyHtml < ActiveRecord::Migration
+  def self.up
+    for c in Comment.find(:all)
+      c.save!
+    end
+
+    for p in Post.find(:all)
+      p.save!
+    end
+
+    for t in Talk.find(:all)
+      t.save!
+    end
+  end
+
+  def self.down
+  end
+end

db/schema.rb

@@ -9,7 +9,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20080705180543) do
+ActiveRecord::Schema.define(:version => 20080705213159) do
 
   create_table "admins", :force => true do |t|
     t.string   "username"

test/unit/post_observer_test.rb

@@ -0,0 +1,8 @@
+require 'test_helper'
+
+class PostObserverTest < Test::Unit::TestCase
+  # Replace this with your real tests.
+  def test_truth
+    assert true
+  end
+end

test/unit/talk_observer_test.rb

@@ -0,0 +1,8 @@
+require 'test_helper'
+
+class TalkObserverTest < Test::Unit::TestCase
+  # Replace this with your real tests.
+  def test_truth
+    assert true
+  end
+end