GitHub - betamatt/passive_counter_cache: Counter caching for ActiveRecord that can be hooked into your background processing architecture.

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Counter caching for ActiveRecord that can be hooked into your background processing architecture.

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Name		Name	Last commit message	Last commit date
Latest commit History 2 Commits
lib		lib
tasks		tasks
test		test
MIT-LICENSE		MIT-LICENSE
README		README
Rakefile		Rakefile
init.rb		init.rb
install.rb		install.rb
uninstall.rb		uninstall.rb

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PassiveCounterCache
===================

Adds support for simple counter cache updating that can be hooked into background processing.  Rails counter caching is disabled
and a method is provided to update caches from a background process.


Example
=======

class Cart < ActiveRecord::Base
  has_many :wheels
end

class Wheel < ActiveRecord::Base
  belongs_to :cart, :passive_counter_cache => true
end

Create a cart and four wheels
>> c = Cart.create
>> 4.times do { c.wheels.create }

As part of a BackgroundRb (or similar) scheduled task execute:
>> PassiveCounterCache.update_all_caches!

>> c.reload!
>> c.wheel_count
=> 4

Copyright (c) 2009 Matt Griffin, released under the MIT license