Esta es una pregunta de 2 partes. 1) ¿Hay una mejor manera de renderizar un modelo a una vista de forma asíncrona? Actualmente estoy haciendo la solicitud ajax usando elfetch método en el modelo (aunque lo estoy llamando explícitamente en la iniciación),entonces renderizar la vista de plantilla usando un evento de aplicación,vent, que se publica desde dentro del modelo después de laparse se llama metodo Genial pero no valiente? 2) Sería un bloqueofetch ¿El método es de uso, y es posible?

La aplicación hace esto a la página:

layout
navbar
index

A continuación, recupera el modelo y hace esto:

layout
navbar
thing
1
something
somethingelse

Pero, si no uso elvent desencadenante, se traduce (se espera):

layout
navbar
thing
1
null
null

Las plantillas html:

<!-- Region: NavBar -->
<script type="text/template" id="template-navbar">
   <div id="navbar">
      navbar
   </div>
</script>

<!-- View: IndexView -->
<script type="text/template" id="template-index">
   <div id="index">
      index
   </div>
</script>

<!-- View: ThingView -->
<script type="text/template" id="template-thing">
   <div id="thing">
      thing<br/>
      <%= id %><br/>
      <%= valOne %><br/>
      <%= valTwo %><br/>
   </div>
</script>

<!-- Region -->
<div id="default-region">
  <!-- Layout -->
  <script type="text/template" id="template-default">
     layout
     <div id="region-navbar">
     </div>
     <div id="region-content">
     </div>
  </script>
</div>

app.js:

window.App = { }

# Region
class RegionContainer extends Backbone.Marionette.Region
  el: '#default-region'   
  # Called on the region when the view has been rendered
  onShow: (view) ->
    console.log 'onShow RegionContainer'

App.RegionContainer = RegionContainer

# Layout
class DefaultLayout extends Backbone.Marionette.Layout
  template: '#template-default'  
  regions:
    navbarRegion: '#region-navbar'
    contentRegion: '#region-content'
  onShow: (view) ->
    console.log 'onShow DefaultLayout'

App.DefaultLayout = DefaultLayout

# NavBar (View)
class NavBar extends Backbone.Marionette.ItemView
  template: '#template-navbar'    
  initialize: () ->
    console.log 'init App.NavBar'

App.NavBar = NavBar

# Index View
class IndexView extends Backbone.Marionette.ItemView
  template: '#template-index'  
  initialize: () ->
    console.log 'init App.IndexView'

App.IndexView = IndexView

# Thing View
class ThingView extends Backbone.Marionette.ItemView
  template: '#template-thing'  
  model: null
  initialize: () ->
    console.log 'init App.ThingView'
  events:
    'click .test_button button': 'doSomething'
  doSomething: () ->
    console.log 'ItemView event -> doSomething()'

App.ThingView = ThingView

# Thing Model
class Thing extends Backbone.Model
  defaults:
    id: null
    valOne: null
    valTwo: null
  url: () ->
    '/thing/' + @attributes.id
  initialize: (item) ->
    console.log 'init App.Thing'
    @fetch()
  parse: (resp, xhr) ->
    console.log 'parse response: ' + JSON.stringify resp 
    # resp: {"id":"1","valOne":"something","valTwo":"somethingelse"}
    @attributes.id = resp.id
    @attributes.valOne = resp.valOne
    @attributes.valTwo = resp.valTwo
    console.log 'Thing: ' + JSON.stringify @
    @
    App.MyApp.vent.trigger 'thingisdone' 

App.Thing = Thing

# App
$ ->

  # Create application, allow for global access
  MyApp = new Backbone.Marionette.Application()
  App.MyApp = MyApp

  # RegionContainer
  regionContainer = new App.RegionContainer

  # DefaultLayout
  defaultLayout = new App.DefaultLayout
  regionContainer.show defaultLayout

  # Views
  navBarView = new App.NavBar
  indexView = new App.IndexView

  # Show defaults
  defaultLayout.navbarRegion.show navBarView
  defaultLayout.contentRegion.show indexView

   # Allow for global access
  App.defaultRegion = regionContainer
  App.defaultLayout = defaultLayout

  # Set default data for MyQpp (can't be empty?)
  data = 
    that: 'this'

  # On application init...
  App.MyApp.addInitializer (data) ->
    console.log 'init App.MyApp'

    # Test
    App.modelViewTrigger = ->
      console.log 'trigger ajax request via model, render view'
      App.MyApp.vent.trigger 'show:thing' 

    App.timeoutInit = ->
      console.log 'init timeout'
      setTimeout 'App.modelViewTrigger()', 2000

    App.timeoutInit()

    # Event pub/sub handling
    App.MyApp.vent.on 'show:thing', ->
      console.log 'received message -> show:thing'
      thing = new App.Thing(id: '1')
      App.thingView = new App.ThingView(model: thing)
      # I should be able to do this, but it renders null
      # App.defaultLayout.contentRegion.show App.thingView

    # Testing to see if I could pub from inside model..yes!
    App.MyApp.vent.on 'thingisdone', ->
      console.log 'received message -> thingisdone'
      App.defaultLayout.contentRegion.show App.thingView

  MyApp.start data