CODEWITHSUNDEEP
javascriptruby-on-railsapirestangularjs
smothers
smothers

Reputation: 434

Extend AngularJS $resource to map to Rails RESTful Routes (particularly $save to create AND update)

I'd like to map the default AngularJS $resource actions:

  'get':    {method:'GET'}
  'save':   {method:'POST'}
  'query':  {method:'GET', isArray:true}
  'remove': {method:'DELETE'}
  'delete': {method:'DELETE'}

to these 5 Rails RESTful routes:

  'show':   {method:'GET'}                 -> get
  'create': {method:'POST'}                -> save
  'update': {method:'PUT'}                 -> save
  'index':  {method:'GET', isArray:true}   -> query
  'delete': {method:'DELETE'}              -> remove or delete

Everything maps well except for save. It works on create as a POST request. But I'd like to change it to a PUT request when I'm saving a resource that has an id != null

# This factory needs a smarter $save() method
myServices.factory 'Message', ['$resource', ($resource) ->
    Message = $resource "api/users/:user_id/messages/:id",
        user_id: '@user_id'
        id: '@id'
    ,
        # update should not be needed
        update:
            method: 'PUT'

    Message
]


myApp.controller "UsersShowCtrl", ["$scope", "$routeParams", "User", "Message", ($scope, $routeParams, User, Message) ->
    $scope.user = User.get({id: $routeParams.user_id})
    $scope.myMessage = new Message {user_id: $routeParams.user_id}

    $scope.submitMyMessage = ->
        # This should just be:
        # $scope.myMessage.$save()
        # rather than:
        unless $scope.myMessage.id?
            $scope.myMessage.$save()
        else
            $scope.myMessage.$update()

]

I would ultimately like to modify the the submitted params as well so that I can namespace them to the default rails nested params i.e. params[:message] rather than attaching them directly to the root params string, but first I need to know how best to modify the the $resource.

Upvotes: 3

Views: 1914

Answers (1)

Mike Park
Mike Park

Reputation: 1985

Off the top of my head, how about this save() method?

myServices.factory 'Message', ['$resource', ($resource) ->
    Message = $resource "api/users/:user_id/messages/:id",
        user_id: '@user_id'
        id: '@id'
    ,
        # update should not be needed
        update:
            method: 'PUT'

    Message::save = ->
        if @id?
            @update()
        else
            @create()

    Message
]

Upvotes: 1

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