gistfile1.rb

# Updating a Page creates a new Path, even if this isnt changed ... is it normal ?

# Page model
class Page < ActiveRecord::Base
  
  attr_accessible :path, :path_attributes
  
  has_one :path, :as => :pathable, :dependent => :destroy
  
  accepts_nested_attributes_for :path
    
end

# Path model
class Path < ActiveRecord::Base
  
  attr_accessible :path
  
  belongs_to :pathable, polymorphic: true
  
end

# Page _form.html.haml
=form_for @page do |f|
	=f.label :path
	 =fields_for "page[path_attributes]", @page.path do |path_form|
	  =path_form.text_field :path