similar to: caching objects

Hi, Why is cache_sweeper not a documented method? I was pretty sure it used to be, but I could be wrong. I can''t seem to find any information on it anymore in the online docs. As a side note, looking at the code for cache_sweeper it appears to only work with the :only option, not :except (ignores it)... what''s the reason for this? Thanks, Andrew

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:

Hello, Quick question on caching based on time based expiration. Is this something that rails supports? Is there a way to instruct rails to refetch the new page after a time period or do we actually have to spawn a background process and have it expire the pages. Thanks, Sam. -- Posted via http://www.ruby-forum.com/.

Hello all, I am running a blog system which has its "/" (home page) cached like this: class ApplicationController < ActionController::Base before_filter :index_cache_expirer, :only => [:index] caches_action :index so the site''s top page is caches for 60 seconds in my case (index_cache_expirer is a home-made function to expire) on the site, there is also a

I am trying to use caches_action and the agile book says that it is keyed off the URL, however it does not seem to pick up the URL parameters. http://localhost:3000/controller/action/id?foo=bar and http://localhost:3000/controller/action/id?foo=foobar Returns the same page. Anyone looked into how to add URL parameters to the cached key? Also, where do those file get stored? Thanks Dave

Hi all, I need to do some screen scraping from my rails app. Given an ethernet (MAC) adress, I scrape results from an internal web page that returns location and hostname. How can I cache the result from that screen scraping as to be polite to the scrapee? I would like to expire the results daily. In perl, I would use Cache::File. Can I use rails caching for this? What''s the best

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

Hi folks - Seeing a weird problem and would love some help. It''s documented in http://pastie.org/278310 to be more readable. In short, I have a caches_page "action", :if => {stuff} but the :if is never being called - the action is just caching every time. (If I put a debugger call in the :if block, it never stops.) If I replace caches_page with caches_action, the if

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

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

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:

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 am running R version ??? under Redhat 5.2. It seems as though the --nsize object has no effct on the size of the allocated Ncells as determined using gc(). Yes, I have that much data.... That is if I envoke R with R --vsize 100 --nsize 5000000 then type gc() I get free total Ncells 92202 200000 Vcells 12928414 13107200 Thanks Tony Long Ecology and Evolutionary Biology Steinhaus

Today I had a strange behavior that made me suspect of jQuery at first, but then it happened that I''ve faced two gotchas, one from CoffeeScript and one from Rails itself. I have something like this: routes.rb post ''/fields/:id.:format'' => ''fields#show'', as: :field, constraints: {id: /\d+/} post ''/fields/remove/:id''

I''ve built a web-app and i want to start tracking request latencies so that i can see how the app handles more and more people using it. However, i''m not sure how this can be done. I''d like to be able to log the start-time when the request comes in and then log the end time as the response gets sent out. Do i need to bookend each action with a before-filter and

Hi , I have created a simple app which allows user logins and when user logs in a home page is shown which is built using some queries to the DB. I tried caching which didnt work properly because for some reason rails kep loading the old cache..Anyway What I was wondering is caching only avoids the render process but IMHO the queries are the most consuming. My code is something like def index

I have action caching setup for several actions of an application but I want the caching to only run for my administrators and have all other users see non-cached pages. Is there a way to do this? Perhaps something like passing a block to caches_action or setting some sort of flag in my authentication method? If this is not possible with action or fragment caching does anyone know of a

Caching computation in rails? Simple example: factorial modulus a large number input: integer x output: factorial( x ) % 12345678901234567 I want it so that if it computes factorial of N once, it will not have to compute for N again. code: class SiteController < ApplicationController caches_action :factorial, :inv def examine @inv = @params[''inv''] @outv =

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

I can''t seem to get the fragment cache to use :file_store. I''d really appreciate it if someone could point me in the right direction. Rails 1.1 final, FreeBSD Observe: In environment.rb AND production.rb (for good measure, DRY be damned): ActionController::Base.fragment_cache_store = :file_store, "/www/apps/localfeeds/directory/tmp/fragmentcache/" At the console