gistfile1.txt

.controller('CategoriesTopicCtrl', function($scope, $stateParams, Topic, Subscription) {
  $scope.topic = Topic.get({topicId: $stateParams.topicId})

  console.log($scope.topic._id)

  $scope.subscriptionData = {
    'token':JSON.parse(window.localStorage['user']).authentication_token
  };

  console.log($scope.subscriptionData)

  $scope.newSubscription = function() {
    var subscription = new Subscription($scope.subscriptionData);
    subscription.$save();
  }
})