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 {
-          @newest_items = Item.newest.limit(18)
-          current_user.assign_closeted_to_items!(@newest_items) if user_signed_in?
+          unless fragment_exist?('items#index newest_items')
+            @newest_items = Item.newest.limit(18)
+          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
     
-    @newest_items = Item.newest.select([:id, :name, :thumbnail_url]).limit(9)
+    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

@@ -14,32 +14,35 @@
     = will_paginate @items
 - else
   #search-info
-    #search-help
-      %h2 Find what you're looking for
-      %dl
-        %dt kreludor  "altador cup" -background
-        %dd
-          returns any item with the word "kreludor" and the phrase "altador cup"
-          in it, but not the word "background"
-        %dt hat user:owns
-        %dd
-          returns
-          = link_to 'items that you own', your_items_path
-          with the word "hat"
-        %dt blue is:nc
-        %dd returns any NC Mall item with the word "blue" in it
-        %dt collar -is:pb
-        %dd returns any item with the word "collar" in it that isn't from a paint brush
-        %dt species:shoyru
-        %dd returns any item a Shoyru can wear
-        %dt type:hat
-        %dd returns any item that fills a "hat" zone
+    - cache :action_suffix => 'search_help' do
+      #search-help
+        %h2 Find what you're looking for
+        %dl
+          %dt kreludor  "altador cup" -background
+          %dd
+            returns any item with the word "kreludor" and the phrase "altador cup"
+            in it, but not the word "background"
+          %dt hat user:owns
+          %dd
+            returns
+            = link_to 'items that you own', your_items_path
+            with the word "hat"
+          %dt blue is:nc
+          %dd returns any NC Mall item with the word "blue" in it
+          %dt collar -is:pb
+          %dd returns any item with the word "collar" in it that isn't from a paint brush
+          %dt species:shoyru
+          %dd returns any item a Shoyru can wear
+          %dt type:hat
+          %dd returns any item that fills a "hat" zone
 
-    #search-new-items
-      %h2 Newest items
-      = render @newest_items
+    - cache 'items#index newest_items' do
+      #search-new-items
+        %h2 Newest items
+        = render @newest_items
 
-  #species-search-links
-    %h2 Can't decide? Search by species
-    = standard_species_search_links
+  - 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

@@ -94,11 +94,12 @@
       %div
       %a#blog-preview-linkback{:href => 'http://blog.openneo.net/'} OpenNeo Blog
   
-  #newest-items
-    %h2 New Items
-    %ul
-      - @newest_items.each do |item|
-        = link_to image_tag(item.thumbnail_url), item
+  - cache 'outfits#new newest_items' do
+    #newest-items
+      %h2 New Items
+      %ul
+        - @newest_items.each do |item|
+          = link_to image_tag(item.thumbnail_url), item
 
 - content_for :javascripts do
   = include_javascript_libraries :jquery