How to update my $scope after adding new elements?

I have a problem with my controller. I use ionic (angular) and js-data. when I add a new item via addItem() I will only when see it if I reload the page via F5.

Here is my code:

.controller('FooCtrl', function($scope, $ionicPlatform, foo) {
    $ionicPlatform.ready(function() {
        foo.findAll().then(function (items) {
            $scope.items = items;
        });
    });

    $scope.item = {};
    $scope.addItem = function () {
        foo.create({ name: $scope.item.name });
    };
})

what I have to do to see the new element withous first pressing F5 in my browser window?

you are creating an item and updating database. but you are not updating $scope.items. so push item to $scope.items or you can call this code just after creating. it will update you $scope.items

foo.findAll().then(function (items) {
                $scope.items = items;
            });

use this code:

.controller('FooCtrl', function($scope, $ionicPlatform, foo) {
    $ionicPlatform.ready(function() {
        foo.findAll().then(function (items) {
            $scope.items = items;
        });
    });

    $scope.item = {};
    $scope.addItem = function () {
        foo.create({ name: $scope.item.name });
        $scope.items.push({ name: $scope.item.name });
    };
})

or

.controller('FooCtrl', function($scope, $ionicPlatform, foo) {
    $ionicPlatform.ready(function() {
        foo.findAll().then(function (items) {
            $scope.items = items;
        });
    });

    $scope.item = {};
    $scope.addItem = function () {
        foo.create({ name: $scope.item.name });
           foo.findAll().then(function (items) {
                $scope.items = items;
            });
    };
})