SC 2.0a To-Do's coffee-script

gistfile1.coffee

Todos = SC.Application.create()

Todos.Todo = SC.Object.extend
  title: null
  isDone: false

Todos.todosController = SC.ArrayProxy.create
  content: []
  createTodo: (title) -> 
    todo = Todos.Todo.create { title: title }
    @pushObject(todo)
  clearCompletedTodos: ->
    @filterProperty('isDone', true).forEach(this.removeObject, this)
  remaining: (-> 
        count = @filterProperty('isDone', false).get('length')
      ).property('@each.isDone')
  allAreDone: ((key, value) ->
    if value?
      @setEach('isDone', value)
      value    
    else
      !!@get('length') && @everyProperty('isDone', true)
    ).property('@each.isDone')

Todos.StatsView = SC.View.extend
  remainingBinding: 'Todos.todosController.remaining'
  remainingString: (->
      remaining = @get('remaining')
      if remaining == 1
        "#{remaining} item" 
      else
        "#{remaining} items"
    ).property('remaining')    
    
Todos.CreateTodoView = SC.TextField.extend
  insertNewline: ->
    value = @get('value')
    if value?
      Todos.todosController.createTodo(value) 
      @set('value', '')