collection not updating on fetch

map.js.coffee

@App.module "Entities", (Entities, App, Backbone, Marionette, $, _) ->
  class Entities.Map extends Backbone.Model
    initialize: (id) ->
      window.SweetMap = @
      @openLayersMap = new OpenLayers.Map(null)
      @openLayersMap.units = "dd"
      @openLayersMap.numZoomLevels = 25
      @openLayersMap.fractionalZoom = true
      @openLayersMap.allOverlays = true
      this.location = new Entities.Location({id: id})
      this.location.fetch
        async: false
        success: =>
          rotation = this.location.get("open_layers_rotation") || 0
          rotation = rotation * Math.PI/180 * -1
          this.setupMap()

    setupMap: ->
      location_id = this.location.get("id")
      @zoneCollection = new Entities.ZoneCollection(location_id)
      @zoneLayerView = new App.ZoneApp.Show.ZoneCollectionView
        collection: @zoneCollection
        openLayersMap: @openLayersMap
        rotation: @location.get("open_layers_rotation") || 0
      @zoneCollection.fetch()

show_view.js.coffee

@App.module "ZoneApp.Show", (Show, App, Backbone, Marionette, $, _) ->
  class Show.ZoneView extends Marionette.ItemView
    template: "zone/templates/zone"

    initialize: (options)->
      debugger
      options = options || {}
      this.layer = options.layer
      this.rotation = options.rotation

    closeZonePopup: () ->
      this.layer.map.removePopup(this.feature.popup)
      this.feature.popup.destroy()
      this.feature.popup = null

    zonePopup: () ->
      feature = this.feature
      content = "<div><strong>Rules: </strong><a href = '" + this.model.get("rules_url") + "'>Rules</a><br /></strong><strong>Feature:</strong>  "+ this.model.get("id") + "<br/><strong>Name:  </strong>" + this.model.get("name") + "<br></div>"
      popup = new OpenLayers.Popup.FramedCloud(
          feature.id + "_popup",
        feature.geometry.getBounds().getCenterLonLat(),
        new OpenLayers.Size(100, 100),
        content,
        null,
        false,
        null)
      feature.popup = popup
      this.layer.map.addPopup(popup)

    render: () ->
      debugger
      zone = this.model
      geometries = zone.get("geometries")
      if geometries.length > 0
        for geometry in geometries
          this.feature = new OpenLayers.Feature.Vector(OpenLayers.Geometry.fromWKT(geometry.geom))
          origin = new OpenLayers.Geometry.Point(0,0)
          this.feature.geometry.rotate(this.rotation, origin)
          this.layer.addFeatures(this.feature)
          _(this.feature).extend(Backbone.Events)
          this.feature.on('featureselected', this.zonePopup, this)
          this.feature.on('featureunselected', this.closeZonePopup, this)


  class Show.ZoneCollectionView extends Marionette.CollectionView
    childView: Show.ZoneView

    initialize: (options) ->
      options = options || {}
      @openLayersMap = options.openLayersMap
      @rotation = options.rotation
      @initLayer()

    initLayer: ->
      zoneDefaultStyle:
        new OpenLayers.Style
          'fillColor': '#EAEDC2'
          'strokeColor': '#8A9676'
          'fillOpacity': .9
      zoneSelectStyle:
        new OpenLayers.Style
          'fillColor': '#37FDFC'
          'strokeColor': '#00CDCD'
          'fillOpacity': .5
      zoneStyleMap:
        new OpenLayers.StyleMap
          'default': @zoneDefaultStyle
          'select': @zoneSelectStyle

      @layer = new OpenLayers.Layer.Vector("zones", styleMap: @zoneStyleMap)
      @openLayersMap.addLayer(@layer)

      zoom_to_original_extent: ->
        b = @layer.getDataExtent()
        b.top = b.top + 2
        b.bottom = b.bottom - 2
        b.right = b.right + 2
        b.left = b.left - 2
        debugger
        @openLayersMap.zoomToExtent(b)


      itemViewOptions: ()->
        {
        layer: @layer
        rotation: @rotation
        }

      onAfterItemAdded: ()->
        @zoom_to_original_extent()

zone.js.coffee

@App.module "Entities", (Entities, App, Backbone, Marionette, $, _) ->
  class Entities.Zone extends Backbone.Model

  class Entities.ZoneCollection extends Backbone.Collection
    model: Entities.Zone
    url: ->
      "/locations/#{this.id}/geometries"

    initialize: (id)->
      @id = id