Ember view - unable to access controller?

edit_chapter_view.js.coffee

Chapters.EditChapterView = Ember.View.extend
  templateName: 'chapters/edit'
  tagName: 'form'
  classNames: 'form-horizontal'

  didInsertElement: ->
    @_super()
    @$('input:first').focus()

  submit: (event) ->
    event.preventDefault()
    @get('controller').updateRecord()

  imagePicker: Ember.View.extend
    tagName: 'div'
    template: Ember.Handlebars.compile "
      <input type=\"hidden\" {{bindAttr value=\"parentView.thumbnail_url\"}} />
      <a href=\"#\" class=\"btn\">Pick File</a>
      <span>{{parentView.thumbnail_url}}</span>
    "

    filepicker_options:
      mimetype: 'image/*'
      services: ['COMPUTER','FACEBOOK','INSTAGRAM','URL','WEBCAM']
      openTo: 'COMPUTER'

    click: (event) ->
      event.preventDefault()
      filepicker.pick(@filepicker_options, @filepickerSuccess, @filepickerError)

    filepickerSuccess: (file) ->
      # @get('controller').setImage(file.url)
      Chapters.router.editChapterController.setImage(file.url)

    filepickerError: (error) ->
      console.log error.toString()

Updated to access the controller instance directly through the router, is this standard practice?