Angular resource with additional methods.

angular_factory_resource.js.coffee

app.factory "User", ["$http","$resource",($http,$resource) ->
  
  User = $resource("/roles/:id", {id: "@id"}, {update: {method: "PUT"}})
  
  # Initialize the data using a static method
  User.init = (data) ->
    angular.extend this, data

  # a static method to retrieve User by ID
  User.get_it = (id) ->
    $http.get("/roles/" + id).then (response) ->
      new User.init(response.data)

  # an instance method to create a new Book
  User::create = ->
    user = this
    $http.post("/roles/", user).then (response) ->
      user.id = response.data.id
      user

  User
]