Monkey patch for finding the controller of a view

uiview+controller_helper.rb

class UIView
  def controller
    if self.nextResponder.is_a? UIViewController
      return self.nextResponder
    elsif self.nextResponder.respond_to? :controller
      return self.nextResponder.controller
    end
  end
end

I've been using UIViewController.viewControllerForView to accomplish the same thing:

class UIView
  def controller
    controller_for_view(self)
  end

  def controller_for_view(view)
    controller = UIViewController.viewControllerForView view
    if controller
      controller
    elsif view.superview
      controller_for_view view.superview
    else
      nil
    end      
  end
end

In my app, Ive got a UIView inside a TPKeyboardAvoidingScrollView inside another UIView which is the root view, so I made my function recursive to allow for multiple levels of nesting.