cache newest items on homepage and items#index

app/controllers/items_controller.rb

@@ -34,8 +34,9 @@ class ItemsController < ApplicationController
     else
       respond_to do |format|
         format.html {
+          unless fragment_exist?('items#index newest_items')
             @newest_items = Item.newest.limit(18)
-          current_user.assign_closeted_to_items!(@newest_items) if user_signed_in?
+          end
         }
         format.js { render :json => {:error => '$q required'}}
       end

app/controllers/outfits_controller.rb

@@ -57,7 +57,10 @@ class OutfitsController < ApplicationController
       @top_contributors = User.top_contributors.limit(User::PreviewTopContributorsCount)
     end
     
+    unless fragment_exist?('outfits#new newest_items')
       @newest_items = Item.newest.select([:id, :name, :thumbnail_url]).limit(9)
+    end
+    
     @latest_contribution = Contribution.recent.first
     Contribution.preload_contributeds_and_parents([@latest_contribution])
   end

app/models/item_observer.rb

@@ -1,4 +1,9 @@
 class ItemObserver < ActionController::Caching::Sweeper
+  def after_create(item)
+    Rails.logger.debug "Item #{item.id} was just created"
+    expire_newest_items
+  end
+  
   def after_update(item)
     Rails.logger.debug "Item #{item.id} was just updated"
     expire_cache_for(item)
@@ -11,7 +16,16 @@ class ItemObserver < ActionController::Caching::Sweeper
 
   private
   
+  def controller
+    @controller ||= ActionController::Base.new
+  end
+  
   def expire_cache_for(item)
-    ActionController::Base.new.expire_fragment("items/#{item.id}#item_link_partial")
+    controller.expire_fragment("items/#{item.id}#item_link_partial")
+  end
+  
+  def expire_newest_items
+    controller.expire_fragment('outfits#new newest_items')
+    controller.expire_fragment('items#index newest_items')
   end
 end

app/views/items/index.html.haml

@@ -14,6 +14,7 @@
     = will_paginate @items
 - else
   #search-info
+    - cache :action_suffix => 'search_help' do
       #search-help
         %h2 Find what you're looking for
         %dl
@@ -35,10 +36,12 @@
           %dt type:hat
           %dd returns any item that fills a "hat" zone
 
+    - cache 'items#index newest_items' do
       #search-new-items
         %h2 Newest items
         = render @newest_items
 
+  - cache :action_suffix => 'species_search_links' do
     #species-search-links
       %h2 Can't decide? Search by species
       = standard_species_search_links

app/views/outfits/new.html.haml

@@ -94,6 +94,7 @@
       %div
       %a#blog-preview-linkback{:href => 'http://blog.openneo.net/'} OpenNeo Blog
   
+  - cache 'outfits#new newest_items' do
     #newest-items
       %h2 New Items
       %ul