angularjs mvctodo app with coffeescript controller

gistfile1.coffee

@TodoController = () ->
  @todos = []
  @newTodo = ""
  
  @addTodo = () ->
    if @newTodo.length > 0
      @todos.push( { content: @newTodo, done: false, editing: false } )
      @newTodo = ""

  @editTodo = (todo) ->
    item.editing = false for item in @todos
    todo.editing = true

  @finishEditing = (todo) -> todo.editing = false
  @removeTodo = (todo) -> @todos.remove(todo)
 
  countTodos = (list, status) -> 
    (todo for todo in list when todo.done is status).length

  @remainingTodos = () -> countTodos(@todos, false)
  @finishedTodos = () -> countTodos(@todos, true)

  @clearCompletedItems = () ->
    oldTodos = @todos
    @todos = []
    @todos.push(todo) for todo in oldTodos when not todo.done

  @hasFinishedTodos = () -> @finishedTodos() > 0
  @hasTodos = () -> @todos.length > 0