class ActionDispatch::Cookies::PermanentCookieJar

def [](name)
  @parent_jar[name.to_s]
end

def []=(name, options)
  if options.is_a?(Hash)
    options.symbolize_keys!
  else
    options = { :value => options }
  end
  options[:expires] = 20.years.from_now
  @parent_jar[name] = options
end

def initialize(parent_jar, key_generator, options = {})
  @parent_jar = parent_jar
  @key_generator = key_generator
  @options = options
end