NilStore for Rails 3

development.rb

config.cache_store = :nil_store

nil_store.rb

require 'active_support/cache'

class ActiveSupport::Cache::NilStore < ActiveSupport::Cache::Store
  def initialize(*args);
    super
  end

  def fetch(*args, &block)
    yield
  end

  def read(*args)
    super
  end

  def write(*args)
    super
  end

  def delete(*args)
    super
  end

  def delete_matched(*args)
    super
  end
end