Firebase callbacks and AngularJS

Question

I am learning AngularJS in conjunction with Firebase. I am really struggling with the on callback of Firebase and trying to update the $scope...

Answer 1

Solution 1 - Remove the $rootscope.$apply on the service and inject and apply the $timeout to the controller:

firebaseService.on('child_added',function(data){        
    $timeout(function(){
        $scope.messages.push(data.val());                       
    },0);
});

Solution 2 - Implement a "SafeApply" method (thanks to Alex Vanston):

$scope.safeApply = function(fn) {
        var phase = this.$root.$$phase;
        if(phase == '$apply' || phase == '$digest') {
            fn();
        } else {
            this.$apply(fn);
        }
    };