Create a new class which inherits from a class it will replace.

Use this class when you need to replace a class method and still call the superclass method.

gem install subclass_and_replace

Set defaults to Rails cookies without writing custom methods or changing core code.

subclass_and_replace ActionDispatch::Cookies::CookieJar do

  def handle_options(options)
    options[:httponly] = true if options[:httponly].nil?
  end

end