How can i refresh cache right now?

I cant seem to get cache_fu going. I inherited a site that had to be moved over locally and it keeps failing with this error:

1. Error:
   test_spec {When local_cache_for_request is called} 001 [get_cache should pull from the local cache on a second hit](When local_cache_for_request is called):
   NoMethodError: undefined method []' for #<Enumerable::Enumerator:0x7f3aa057cbf0> /usr/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/core_ext/string/access.rb:43:infirst'
   ./lib/acts_as_cached/cache_methods.rb:184:in cache_key' ./lib/acts_as_cached/local_cache.rb:7:infetch_cache'
   ./lib/acts_as_cached/cache_methods.rb:31:in get_cache' ./lib/acts_as_cached/cache_methods.rb:230:inget_cache'
   test/local_cache_test.rb:13:in test_spec {When local_cache_for_request is called} 001 [get_cache should pull from the local cache on a second hit]' /usr/lib/ruby/gems/1.8/gems/test-spec-0.3.0/lib/test/spec.rb:442:inrun'
   /usr/lib/ruby/gems/1.8/gems/test-spec-0.3.0/lib/test/spec.rb:441:in each' /usr/lib/ruby/gems/1.8/gems/test-spec-0.3.0/lib/test/spec.rb:441:inrun'
   /usr/lib/ruby/gems/1.8/gems/test-spec-0.3.0/lib/test/spec.rb:442:in run' /usr/lib/ruby/gems/1.8/gems/test-spec-0.3.0/lib/test/spec.rb:441:ineach'
   /usr/lib/ruby/gems/1.8/gems/test-spec-0.3.0/lib/test/spec.rb:441:in `run'

I am using:

• memcache-client (1.7.5)
• rails (2.0.2)
• cache_fu verison??

Any help would be greatly appreciated.

recent rails versions come with a nice cache_key method that concatenates

class_name + id + timestamp

this together with the ActiveRecord "touch" method would work great because
cache expiration is automatic when the record gets updated.

this method "cache_key" is being overwritten in the "cache_fu" plugin.

lib/acts_as_cached/cache_methods.rb:265

265     def cache_key
266       self.class.cache_key(cache_id)
267     end

I was thinking that maybe something like this would do:

return super if self.class.superclass.to_s == 'ActiveRecord::Base'
self.class.cache_key(cache_id)

So well, may be it needs a little bit more code and tests to be robust.
but you sort of get the idea.

I forked, and was thinking of making the changes but thought of confirming this

Thanks for rip, cijoe, network-graphs?? and more!

How exactly do you get the tests to pass? This is the output from when I run them:

36 tests, 20 assertions, 6 failures, 16 errors

I would past the entire output, but it's amazingly long. Do the tests depend on a certain version of Ruby? Or... certain rails versions? I've tried with Rails 1.2.5, 2.2.3, 2.3.2, and 2.3.4. I'm running REE 1.8.7. I've installed the exact versions that the test helper says I need of required gems.

I'm trying to get the tests to pass because I just want some validation that everything works. Specifically, I would like to get caches_action to work, which (as another issue logged here points out) seems to be broken. I intend to attempt the fix mentioned in that linked blog post, but in the meantime, it seems like the tests should pass...

when i do:
rake db:migrate RAILS_ENV=development

then a error Occur:
rake aborted!
undefined method `cache_classes=' for #Hash:0x10107bd98

i check it,and got the cache_fu have a config
module ActsAsCached
@@config = {}
mattr_reader :config

and the rails3 define it's config.
EoeUnion::Application.configure do

Settings specified here will take precedence over those in config/environment.rb

In the development environment your application's code is reloaded on

every request. This slows down response time but is perfect for development

since you don't have to restart the webserver when you make code changes.

config.cache_classes = false

I spent a couple hours banging my head against the wall trying to figure out why our action caching wasn't working, until I came across this: http://www.neeraj.name/blog/articles/863-action-caching-in-broken-in-plugin-cache_fu

I applied the suggested fix and it seems to work, although I'm not sure if it breaks anything else (tests don't pass for me even before the fix).

(We're on Rails 2.2.2)