angular js getting data from laravel and print it - angularjs

Question

Hi I'am trying a simple example of using a controller and a factory to get some data back to the view but for some reason I can't print it.
I managed to get the ajax call to work.
If I type the
$scope.sampleStyles = [{ sample: 'text here', text : 'dasdas'}
and don't use the ajax call it works
UPDATE: if I add an alert before assigning to my scope it works (ajax has time to do his thing)
anyone know how to overcome that?
CODE:
var packageApp = angular.module("packageApp", []);
packageApp.controller("MyController", function($scope, myFactory){
$scope.sampleStyles = [];
function init(){
$scope.sampleStyles = myFactory.getSampleStyles();
}
init();
});
packageApp.factory('myFactory', function($http, $log){
var factory = {};
var sampleStyles = [];
var tempData = {};
factory.update = function(){
$.ajax({
type: 'POST',
url: '/account/fetch-sample-styles',
data: {
source: 'ajax'
},
success: function(data, textStatus, XMLHttpRequest){
tempData = data;
}
});
alert(tempData);
sampleStyles = tempData;
}
factory.getSampleStyles = function(){
factory.update();
return sampleStyles;
};
return factory;
});

Answer 1

Are you using the AngularJs $http service? If so it will return a promise which you then operate on. Here is more on promises from the AngularJs docs.
My guess is, you are using an ajax.get(...) with a success callback defined inside. The problem is probably due to the success callback not belonging to the "AngularJs world."
To fix this, you need to tell AngularJs that its scope has changed. Use the $[Root]scope.$apply() function, and have the scope injected into your service as a dependency.
Something like this inside the factory:
$.ajax({
url: "/api/some/end/:point",
...
success: function(data) {
$scope.$apply(function() {
$scope.sampleStyles = data; // etc
});
}
});
I strongly recommend that you look into the $http service, it makes the above code much nicer, and is designed to play nice with the $scope.
$http.get("/api/end/point").then(function(response) {
// response.data points at the page data sent back, assuming that your
// api endpoint sends back JSON of the likes of
// { status: "SUCCESS", styles: [...] }
$scope.sampleStyles = response.data.styles;
});
EDIT:
Now that you posted some code, it seems like the root of your issue is based on the fact that the ajax get is an async call. Why are you even messing with using a temporary variable? Why not the following?
factory.update = function(){
$.ajax({
type: 'POST',
url: '/account/fetch-sample-styles',
data: {
source: 'ajax'
},
success: function(data, textStatus, XMLHttpRequest){
sampleStyles = data;
}
});
}
If you really wanted to make the $.ajax call blocking, you can set async: false in the $.ajax properties.
EDIT 2:
Fixed some broken links, sorry I am a SO newb :(