gistfile1.coffee

`import Ember from 'ember'`
PostRoute = Ember.Route.extend

  model: (params) ->
    @store.find('post', params.post_id)

  afterModel: (model) ->

    childPosts = []

    @store.find('post',
      parent: model.get('id')
      iteration: @modelFor('iteration').get('id')      
    ).then( (child_posts) ->
      childPosts = child_posts.get("content")
      model.get('posts')
    ).then( (posts) ->
      _.each childPosts, (cp) -> posts.pushObject cp
    )

  setupController: (controller, model) ->
    controller
      .set('model',     model)