gistfile1.coffee

class Controller
  constructor: ($injector) ->
    @init.apply(@, @injectables.map((val) -> $injector.get(val)))
    $injector.get('$scope').$on, '$destroy' => @deinit()

class MyController extends  Controller
  injectables: '$scope', '$modal'
  
  init: ($scope, $modal) ->
    @modal = $modal.open($scope.new())
    @unwatch = $scope.$watch 'foo', @updateFoo
    
  updateFoo: (newval) ->
    @foo = newval * 2
    
  deinit: ->
    @modal.close()
    @unwatch()