ember nested route needs selected object on parent route using ember.select

i have ember routes set up as a list and single object -- and use a Ember.Select for the list

 this.resource('posts', { path: 'posts' }, function() {  // the collection
    this.resource('brand', { path: 'post/:post_id' }, function() { //the selected object

all functions as expected if a user navigates under the normal procedure from ground zero. 1. viewing the collection, #/posts/ 2. then selecting the post using the select component #/posts/post/001

however, when accessing the subview directly (aka via refresh reload browser url) then the selected object is not set on the parent route. ie. the selected post in the ember.select is not highlighted. #/posts/post/001

is there a method of accessing the parent route (or controller) and then setting a selected object.

i had thought of having an option for selected id on the initial collection ...

this.resource('posts', { path: 'posts/:selected_postid' }, function() {  // the collection
    this.resource('posts', { path: 'post/:post_id' }, function() { //the selected object

then the url will be...

#/posts/001/post/001

the problem here is transitionTo makes no sense on itself. is it possible to set a full {{posts:selected_postid/post/:post_id}} url... versus just the sub clip. and re-rendering the parent unnecessarily.