CODEWITHSUNDEEP
angularjspromiseangular-resource
Thomas Pons
Thomas Pons

Reputation: 7729

AngularJS resource promise

I've got a simple controller that use $resource : 

 var Regions = $resource('mocks/regions.json');

 $scope.regions = Regions.query();

I'm using this controller in a directive (in the link function)

var regions = scope.regions;

But regions is undefined. It's pretty logic the call is asynchronous.

My question is how can i do to wait the result and regions be an array with all data ? 

UPDATE :

Here the definition of the directive

app.directive('ngMap', function() {
  return {
    restrict: 'EA',
    replace: 'true',
    scope: {

    },
    template: '<div id="map"></div>',
    controller: 'AccordMapCtrl',
    link: function(scope, element, attrs) {
      var regions = scope.regions;
      console.log(regions);

      for (var region in regions) {}
    };
  });

Upvotes: 76

Views: 102369

Answers (4)

Ding
Ding

Reputation: 1

/*link*/
$q.when(scope.regions).then(function(result) {
    console.log(result);
});

var Regions = $resource('mocks/regions.json');
$scope.regions = Regions.query().$promise.then(function(response) {
    return response;
});

Upvotes: 0

Andreas
Andreas

Reputation: 209

You could also do:

Regions.query({}, function(response) {
    $scope.regions = response;
    // Do stuff that depends on $scope.regions here
});

Upvotes: 20

Mahbub
Mahbub

Reputation: 3118

If you're looking to get promise in resource call, you should use

Regions.query().$q.then(function(){ .... })

Update : the promise syntax is changed in current versions which reads

Regions.query().$promise.then(function(){ ..... })

Those who have downvoted don't know what it was and who first added this promise to resource object. I used this feature in late 2012 - yes 2012.

Upvotes: 36

Andrey Pushkarev
Andrey Pushkarev

Reputation: 1911

If you want to use asynchronous method you need to use callback function by $promise, here is example:

var Regions = $resource('mocks/regions.json');

$scope.regions = Regions.query();
$scope.regions.$promise.then(function (result) {
    $scope.regions = result;
});

Upvotes: 186

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