2009-08-02 45 views
2

以下是設置。我有一個基本上是簡單CMS的網站。這裏是路線文件:根URL無效的動作緩存

map.connect ':url', :controller => :pages, :action => :show 
map.root :controller => :pages, :action => :show, :url => "/" 

頁面控制器是這樣的:

class PagesController < ApplicationController 
    before_filter :verify_access, :except => [:show] 

    # Cache show action if we are not logged in. 
    caches_action :show, :layout => false, :unless => Proc.new { |controller| controller.logged_in? } 

    def update 
    @page = Page.find(params[:id]) 

    respond_to do |format| 
     expire_action :action => :show, :url => @page.url 

所以,當訪問者點擊 「/」 它映射到:控制器=> 「頁面,:動作=>」 秀,:url =>「/」。這會在第一次嘗試時生成一個緩存版本,然後在那裏返回適當的結果。日誌文件顯示:

Processing PagesController#show (for 127.0.0.1 at 2009-08-02 14:15:01) [GET] 
    Parameters: {"action"=>"show", "url"=>"/", "controller"=>"pages"} 
Cached fragment hit: views/out.local// (0.1ms) 
Rendering template within layouts/application 
Filter chain halted as [#<ActionController::Filters::AroundFilter:0x23eb03c @identifier=nil, @method=#<Proc:[email protected]/Library/Ruby/Gems/1.8/gems/actionpack-2.3.3/lib/action_controller/caching/actions.rb:64>, @kind=:filter, @options={:only=>#<Set: {"show"}>, :if=>nil, :unless=>#<Proc:[email protected]/Users/askegg/Sites/out/app/controllers/pages_controller.rb:6>}>] did_not_yield. 
Completed in 2ms (View: 1, DB: 0) | 200 OK [http://out.local/] 

確定 - 迄今爲止都很好。當我更新頁面時,應該使緩存過期(參見上文)。日誌顯示:

Page Load (0.2ms) SELECT * FROM "pages" WHERE ("pages"."id" = 3) 
    Page Load (0.1ms) SELECT "pages".id FROM "pages" WHERE ("pages"."url" = '/' AND "pages".domain_id = 1 AND "pages".id <> 3) LIMIT 1 
Expired fragment: views/out.local/index (0.1ms) 
Redirected to http://out.local/pages/3 
Completed in 9ms (DB: 0) | 302 Found [http://out.local/pages/3] 

看到問題了嗎? Rails將清除名爲「index」的緩存,但將其設置爲「/」。當然這會導致緩存不被清除,所以訪問者現在正在看到舊版本。

+0

我切換到片段緩存,所以這不再是一個問題,但我仍然懷疑在這裏的Rails中的錯誤。 – askegg 2009-08-04 01:36:26

回答

0

我沒有使用動作緩存,但我知道,使用頁面緩存,如果我緩存頁面,如「/職位/指數」,我也讓我的root_url,Rails會緩存它作爲兩個:

RAILS_ROOT/public/index.html 
RAILS_ROOT/public/posts/index.html 

到期他們兩個,我清掃我必須做的:

expire_page :controller => 'posts', :action => 'index' 
expire_page '/index' 

所以,或許expire_action也只是一個字符串路徑ARG?