Namespaced routing + AJAX issues

Hi Im a newbie so please bear with me.

I've two controllers admin and public.

The admin controller inherits from the public controller.

I have two problems

The controller returns method admin_admin_hierarchies_path not found. If I remove the redirect_to {[:admin, hierarchies]} and make it {hierarchies} I can get it to work, but the return from the ajax call tries to access the new method of the public hierarchies controller, and since there isn't a method for that in the new controller it fails.

undefined method `admin_admin_hierarchies_url' for #<Admin::HierarchiesController:0x47f90f0>

app/controllers/admin/hierarchies_controller.rb:13:in `new' app/controllers/admin/hierarchies_controller.rb:12:in `new'


ActionController::Routing::Routes.draw do |map|   map.resources :hierarchies

  map.root :controller => 'sessions'   map.resources :sessions   map.resource :session, :controller => 'sessions'   map.login '/login', :controller => 'sessions', :action => 'new'   map.logout '/logout', :controller => 'sessions', :action => 'destroy'   map.namespace(:admin) do |admin|     admin.resources :hierarchies   end

  map.connect ':controller/:action/:id.:format'   map.connect ':controller/:action/:id'   map.connect ':controller/:action/:sort/:order' end

class Admin::HierarchiesController < HierarchiesController

  layout 'admin'   skip_before_filter :login_required   before_filter :admin_required, :except => [:filterhierarchies]

  # GET /admin_hierarchies/new   # GET /admin_hierarchies/new.xml   def new     @hierarchy =   @hierarchy_company = Company.find(:all, :order => "id")     respond_to do |format|       format.html { redirect_to([:admin,@hierarchy]) }       format.xml { render :xml => @hierarchy }     end   end   def filterhierarchies   respond_to do |want|    @co_business_streams =[:company_id])    want.js{     render :update do |page|      page.replace_html 'hierarchy_business_stream_id', :partial => 'filterhierarchies'     end   }        end   end