directives.coffee

  module.directive 'selectallgroup', ->
    restrict: 'A'
    link: (scope, ele, attrs)->
      $(ele).on 'change', ->
        $(@).parents('h3').next('ul').find('input[type=checkbox]').each ()->
          unless $(@).is(':disabled')
            selectAllChecked = $(ele).prop('checked')

            if selectAllChecked
              $(@).prop('checked', false)
            else
              $(@).prop('checked', true)

            $(@).click()