home page caching, reset top contributors only when necessary

app/controllers/outfits_controller.rb

@@ -29,9 +29,13 @@ class OutfitsController < ApplicationController
   end
   
   def new
+    unless fragment_exist?(:action_suffix => 'start_from_scratch_form_content')
       @colors = Color.all_ordered_by_name
       @species = Species.all_ordered_by_name
-    @top_contributors = User.top_contributors.limit(3)
+    end
+    unless fragment_exist?(:action_suffix => 'top_contributors')
+      @top_contributors = User.top_contributors.limit(User::PreviewTopContributorsCount)
+    end
   end
   
   def show

app/controllers/pets_controller.rb

@@ -1,6 +1,8 @@
 class PetsController < ApplicationController
   rescue_from Pet::PetNotFound, :with => :pet_not_found
   
+  cache_sweeper :user_sweeper
+  
   DESTINATIONS = {
     'needed_items' => '?',
     'root' => '#',

app/models/item_sweeper.rb

@@ -1,5 +1,3 @@
-puts 'Hey! Item sweeper!'
-
 class ItemSweeper < ActionController::Caching::Sweeper
   observe Item
 

app/models/user.rb

@@ -1,5 +1,6 @@
 class User < ActiveRecord::Base
   DefaultAuthServerId = 1
+  PreviewTopContributorsCount = 3
   
   has_many :contributions
   has_many :outfits
@@ -37,4 +38,8 @@ class User < ActiveRecord::Base
     end
     user
   end
+  
+  def self.points_required_to_pass_top_contributor(offset)
+    User.top_contributors.select(:points).limit(1).offset(offset).first.points
+  end
 end

app/models/user_sweeper.rb

@@ -0,0 +1,12 @@
+class UserSweeper < ActionController::Caching::Sweeper
+  observe User
+  
+  def before_save(user)
+    if user.points_changed?
+      points_to_beat = User.points_required_to_pass_top_contributor(User::PreviewTopContributorsCount - 1)
+      if user.points >= points_to_beat
+        expire_fragment(:controller => 'outfits', :action => 'new', :action_suffix => 'top_contributors')
+      end
+    end
+  end
+end

app/views/outfits/new.html.haml

@@ -1,11 +1,13 @@
 - hide_home_link
 #outfit-forms
+  - cache :action_suffix => 'outfit_forms_intro' do
     #pet-preview
       = image_tag 'default_preview.png', :alt => ''
       %span
     %h1 Dress to Impress
     %h2 Neopets wearables made easy!
   = form_tag load_pet_path, :id => 'load-pet-to-wardrobe' do
+    - cache :action_suffix => 'main_load_pet_form_content' do
       = origin_tag root_path
       = destination_tag 'wardrobe'
       %fieldset
@@ -14,12 +16,14 @@
         %button{:type => "submit"}
           Plan my outfit!
   = form_tag wardrobe_path, :method => 'get', :id => 'start-from-scratch' do
+    - cache :action_suffix => 'start_from_scratch_form_content' do
       %fieldset
         %legend Or start from scratch
         = pet_attribute_select 'color', @colors, 8
         = pet_attribute_select 'species', @species
         %input{:type => "submit", :value => "Go"}
-%ul#sections
+- cache :action_suffix => 'sections_and_description' do
+  %ul#sections
     %li
       %a{:href => "http://forum.openneo.net"}
         = image_tag 'forum.png'
@@ -53,7 +57,7 @@
         %p
           Dress to Impress is always improving, and you can always stay in
           the loop through our blog.
-#description
+  #description
     %h2 Built by you, just for you!
     %p
       Dress to Impress lets you plan how you want to dress up your Neopets,
@@ -69,7 +73,8 @@
       and award
       = link_to 'points', top_contributors_path
       so you can show off just how dedicated you really are!
-#top-contributors
+- cache :action_suffix => 'top_contributors' do
+  #top-contributors
     %h3 Top Contributors
     %ol
       - @top_contributors.each do |user|
@@ -79,6 +84,7 @@
           = user.points
     %a{:href => top_contributors_path} see more
 = form_tag load_pet_path, :id => 'how-can-i-help' do
+  - cache :action_suffix => 'how_can_i_help_form_content' do
     = destination_tag 'needed_items'
     = origin_tag root_path
     %h2 How can I help?
@@ -89,6 +95,7 @@
     %button{:type => "submit"}
       Let's model!
 = form_tag load_pet_path, :id => 'i-found-something' do
+  - cache :action_suffix => 'i_found_something_form_content' do
     = origin_tag root_path
     %a{:href => bulk_pets_path}
       add many pets

config/application.rb

@@ -20,7 +20,7 @@ module OpenneoImpressItems
     # config.plugins = [ :exception_notification, :ssl_requirement, :all ]
 
     # Activate observers that should always be running
-    config.active_record.observers = :item_sweeper
+    config.active_record.observers = :item_sweeper, :user_sweeper
 
     # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
     # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.