Little experiment with cache keys

gistfile1.rb

module Cachable
  def self.included(receiver)
    receiver.class_attribute :cachable 
    receiver.cachable = Keystore.new
    receiver.send(:helper_method, :cachable)
  end
  
  class Keystore        
    def define name, &block
      (class << self; self; end).send :define_method, name, &block
    end
  end
end

# Spec

class Dummy < ApplicationController
  include Cachable
end

describe Cachable do
  before(:each) do
    Dummy.cachable.define :spotlight do |a,b|
      "spotlight_#{a}_#{b}"
    end
  end
  
  it "should generate a key for spotlight" do
    Dummy.cachable.spotlight(1,2).should == "spotlight_1_2"
  end
end