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Fork of defunkt/cache_fu
Description: Everyone's favorite memcached plugin for ActiveRecord.
Homepage: http://errtheblog.com
Clone URL: git://github.com/technoweenie/cache_fu.git 
first post
defunkt (author)
Tue Jan 22 16:27:07 -0800 2008
commit  7b059349b40e567e31463f3b3c5883c60e765b65
tree    f31c944f123a91c232ad8ba43429dc42b7a54f2a
cache_fu / lib / acts_as_cached / local_cache.rb
100644 45 lines (37 sloc) 1.236 kb
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module ActsAsCached
  module LocalCache
    @@local_cache = {}
    mattr_accessor :local_cache
 
    def fetch_cache_with_local_cache(*args)
      @@local_cache[cache_key(args.first)] ||= fetch_cache_without_local_cache(*args)
    end
 
    def set_cache_with_local_cache(*args)
      @@local_cache[cache_key(args.first)] = set_cache_without_local_cache(*args)
    end
 
    def expire_cache_with_local_cache(*args)
      @@local_cache.delete(cache_key(args.first))
      expire_cache_without_local_cache(*args)
    end
    alias :clear_cache_with_local_cache :expire_cache_with_local_cache
    
    def cached_with_local_cache?(*args)
      !!@@local_cache[cache_key(args.first)] || cached_without_local_cache?(*args)
    end
 
    def self.add_to(klass)
      return if klass.ancestors.include? self
      klass.send :include, self
 
      klass.class_eval do
        %w( fetch_cache set_cache expire_cache clear_cache cached? ).each do |target|
          alias_method_chain target, :local_cache
        end
      end
    end
  end
end
 
module ActionController
  class Base
    def local_cache_for_request
      ActsAsCached::LocalCache.add_to ActsAsCached::ClassMethods 
      ActsAsCached::LocalCache.local_cache = {}
    end
  end
end