similar to: expiring cache fragments using script/runner

I''m having a bear of a time getting my cached pages to expire. Maybe one of you guys can help me out. I''ll show my sweeper and then my log to show that it "should" be working. class PragmaticSweeper < ActionController::Caching::Sweeper observe Comment def after_save(comment) expire_page(comment.post_id) end private def expire_page(post_id)

Hi, I''m trying to use sweepers for the first time and got a problem - I get "undefined method `merge'' for "/signature/ f2d7c7c66450b169.html":String". The "/signature/f2d7c7c66450b169.html" part of the error message is the cached page. Here''s my sweeper: class FooSweeper < ActionController::Caching::Sweeper observe Foo def

I''ve enabled page caching on a site I''m currently constructing. The sweeper is called upon any changes made to the model, as expected. The sweeper code is as follows: class PersonSweeper < ActionController::Caching::Sweeper observe Person def after_update(person) expire_staff_page end def after_destroy(person) expire_staff_page end def

I noticed a lot of repetition across different Sweeper models in my app expiring the same fragments and so have been trying to move all the expire_fragment calls into another model which the sweepers can then use but it''s not working as I''d hoped.. I''ve created a CacheDestroyer model and want to be able to call something to the effect of:

Hi all, I''m new to rails and I''ve run in to a rather insidious bug. In development (with caching turned on in development.rb), my app successfully caches action "index" in controller "view": class ViewController < ApplicationController caches_page :index def index # do the stuff that index does end end I''ve got a sweeper

Hi, I''ve started to implement page caches but I''ve hit a brick wall getting a sweeper to clear the cache when needed. It seems that any models that I tell it to observe aren''t being observed properly. If I add the sweeper to a controller the initialize method runs, but no matter what I do the after_save/after_update callbacks aren''t running. Also if I try to

I created a sweeper ItemSweeper and saved it in app/models/item_sweeper.rb. Then I put this in my item_controller.rb: cache_sweeper :item_sweeper, :only => [:create, :destroy, :update] But now when I call the view action, I get this error: ActionView::TemplateError (undefined method `title'' for nil:NilClass) on line #5 of app/views/item/view.rhtml: 5: <H1

xponrails wrote: > Hi all. > > I need to expire cached fragments from outside sweepers or > controllers: I have a rake task that calls a method inside a module in > the /lib directory. This task will be called at a scheduled time by a > crontab job. > > After method execution I would like to expire some cached fragments. > > I''ve just tried to import

Hello, I am trying to expire fragments (or at least trigger their expiration) from a daemon that''s running in the background. The daemon is updating all kinds of important lists every few minutes from the background. So I have to find some way to DO or TRIGGER the fragment caching from this daemon. Unfortunately just using the normal commands like: expire_fragment :controller =>

I''ve got a cache sweeper running observing a model "after_validation_on_update". Inside that filter method, a call to "controller.current_user" is made to access that application_controller method (to get the current user in session). I get the error "NoMethodError: undefined method `current_user'' for nil:NilClass" when running my unit test

Hi, I''m working on a website that has a very slow loading frontpage. I wanted to start by caching certain elements that have high load. For example, it loads the last 50 comments, along with the corresponding usernames, avatars and more. So I cached that fragment and created a sweeper that observes Comment and expires after every create or destroy action. However, I have two problems:

I created a script that I call by ''./script/runner -e production UpdateItems.get_new_items()'', which basically calls the model Item: Item.create(attributes...) I''ve set up a cache sweeper which removes caches after each create/destroy/update on Item, and it works fine when accessing controllers via the web server, but apparently doesn''t work via runner.

Hello all, We know that memcached or memcached-client doesn''t support regex... But It seems it doesn''t support expire_fragment either :/ I''m trying to use expire_fragment with memcached as following : expire_fragment(:controller => ''home'', :action => :list_posts) But apparently it''s not supported by memcached : RuntimeError (Not

I''m just getting my hands dirty with caching. The pages I want to cache have some user specific data on them (for example "log out"). That sent me down the route of fragment caching. One of the things I want to pagination is a paginated list. My question is how is pagination and query strings handled with fragment caching? Does each page get its own fragment and query string

Hello, I am trying to invalidate a cached fragment. My fragment looks like <% cache ( :controller=>''users'',:action=>''additem_to_cart'',:action_suffix=>@user.id) %> At this point,rails has created 2 cache files correctly and everything works fine becuase I dont see rails making calls to the SQL db to get items from DB.Instead it uses cache. Now

Hi all, I''m having problems trying to expire the ''index'' action of a controller. In short, expire_action :action => ''index'' doesn''t work, but expire_fragment (url_for :action => ''index'').gsub(/\/index/,'''').split("://").last works fine and deletes the cached page as expected. I

hi , I''m having problems with expire_page with custom routes i''ll show some code blog_controller --------------- def clear_cache_rss_artikels expire_page url_for(:controller => "xml",:action => "rss_artikels") end this is called when a new article is posted or edited or destroyed xml_controller --------------- class XmlController <

I am trying to figure out a way to call the expire_fragment outside of a controller. I need to expire some fragments on a hourly basis. I have a Thread that every hour that will perform a task. The expire_fragment is located in the module ActionController::Caching::Fragments as an instance method. Do I need to mixin the model ActionController::Caching::Fragments into my class? Or is there

I''ve seen a couple of workarounds on the mailing list related to expiring cached fragments inside of models, but nothing too clean. Anybody have any suggestions for handling this at the model-level? I have an application is updated outside of the Rails controllers, so I can''t use a Sweeper. The 2 methods I''ve seen: a. Use a callback to generate an HTTP post on a

Hello to all, I want to use the after_validation_on_update call back to keep some redundancy in sync with the model. But now I''ve encountered that the call-back get called two times. Is this the intended behaviour? What can I do to prevent Rails from doing so? best regards Torsten