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Cacheify

Easy caching of methods calls.

Cacheify uses ActiveSupport::Cache::Store to do caching so, depending on what you choose, it may cache to memory, disk, memcache or whatever is supported by the cache store.

Installation

sudo gem install cacheify

Usage

Mixin the Cacheify module, use the cacheify method.

require 'cacheify'

class Foo
  def bar
  end

  include Cacheify
  cacheify :bar, :expires_in => 1.hour
end

And you’re foo instance calls to bar will get cached.

Foo.new.bar # will hit cache if cached, or get cached otherwise

Caveat: You have to call cacheify after defining bar.

To enable cacheify on the existing class just extend:

Thing.extend Cacheify
Thing.cacheify :very_expensive_operation

To cache a method on a specific object:

boo = Thing.new
boo.extend Cacheify
boo.cacheify :very_expensive_operation

And only that instance of Thing will have its very_expensive_operation cached.

If you use Cacheify a lot, you may do:

Object.extend Cacheify

But that’s just evil.

Choosing your Cache store

To setup what cache store Cacheify is using:

Cacheify.cache_store = :file_store, "tmp/cacheify"

The arguments are the same as in ActiveSupport::Cache#lookup_store

More info

Note on Patches/Pull Requests

  • Fork the project.

  • Make your feature addition or bug fix.

  • Add tests for it. This is important so I don’t break it in a future version unintentionally.

  • Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)

  • Send me a pull request. Bonus points for topic branches.

Copyright © 2010 Sasa Brankovic. See LICENSE for details.

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Easy caching of methods calls

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