Cascade unbind nested views in backbone.js

all.js.coffee

_.extend Backbone.View.prototype,
  renderView: (el, func, view) ->
    $.fn[func].call(el, view.render().el)
    @views ||= []
    @views.push view

  disposeViews: ->
    if @views
      _(@views).each (view) ->
        view.dispose()

# bindTo, unbindFromAll

  dispose: ->
    @disposeViews()
    @unbindFromAll()
    @unbind()
    @remove()

some_view.js.coffee

# in some view
@renderView $(@el), 'append', view