Cache file_list Action

Also, slightly smarter cache expiry, upon uploading/deleting a file.

app/controllers/cache_sweeping_helper.rb

@@ -16,9 +16,13 @@ module CacheSweepingHelper
       end
     end
 
-    %w(authors atom_with_content atom_with_headlines).each do |action|
+    %w(authors atom_with_content atom_with_headlines file_list).each do |action|
       expire_action :controller => 'wiki', :web => web.address, :action => action
     end
+    
+    %w(file_name created_at).each do |sort_order|
+      expire_action :controller => 'wiki', :web => web.address, :action => 'file_list', :sort_order => sort_order
+    end
   end
 
 end

app/controllers/web_sweeper.rb

@@ -4,13 +4,18 @@ class WebSweeper < ActionController::Caching::Sweeper
 
   include CacheSweepingHelper
 
-  observe Web, Page
+  observe Web, Page, WikiFile
   
   def after_save(record)
     if record.is_a?(Web)
       web = record
       web.pages.each { |page| expire_cached_page(web, page.name) }
       expire_cached_summary_pages(web)
+    elsif record.is_a?(WikiFile)
+      record.web.pages_that_link_to(record.file_name).each do |page|
+        expire_cached_page(record.web, page)
+      end
+      expire_cached_summary_pages(record.web)
     end
   end
 
@@ -25,9 +30,11 @@ class WebSweeper < ActionController::Caching::Sweeper
   def after_destroy(record)
     if record.is_a?(Web)
       expire_cached_summary_pages(record)
-    else
+    elsif record.is_a?(Page)
       expire_cached_page(record.web, record.name)
       expire_cached_summary_pages(record.web)
+    else
+      expire_cached_summary_pages(record.web)
     end
   end
 

app/controllers/wiki_controller.rb

@@ -8,7 +8,7 @@ class WikiController < ApplicationController
 
   before_filter :load_page
   before_filter :dnsbl_check, :only => [:edit, :new, :save, :export_html, :export_markup]
-  caches_action :show, :published, :authors, :tex, :s5, :print, :recently_revised, :list, 
+  caches_action :show, :published, :authors, :tex, :s5, :print, :recently_revised, :list, :file_list,
         :atom_with_content, :atom_with_headlines, :if => Proc.new { |c| c.send(:do_caching?) }
   cache_sweeper :revision_sweeper