Angular Two way databinding and http.post issue - angularjs

Question

Objective: Two Way Databinding between database and view via scope and controller
I’m trying to post to a restful database using angular
When I click on the thumbs up or thumbs down the scope changes o.k and is reflected in the view
However how can this placed in real time to a restful database using http post ?
Here’s the HTML
<div ng-controller="ordersCtrl">
<div class="span0 well votingWidget">
<div class="votingButton" ng-click="upVoteOrder(order)">
<i class="icon-thumbs-up "></i>
</div>
<div class="badge ">
<div>{{order.upVoteCount}}</div>
</div>
<div class="votingButton" ng-click="downVoteOrder(order)">
<i class="icon-thumbs-down"></i>
</div>
Heres the Controller: My issue lies here in the http.post command
.controller("ordersCtrl", function ($scope, $http, ordersUrl) {
$scope.downVoteOrder = function(order) {
$scope.selectedOrder = order;
order.upVoteCount--;
$http.post(orderUrl, order.upVoteCount)
.success(function (data) {
$scope.data.orderupVoteCount = data.id;
})
};
});
Note : I can post form data to the restful database successfully using the following code
$scope.sendOrder = function (shippingDetails) {
var order = angular.copy(shippingDetails);
order.products = cart.getProducts();
$http.post(orderUrl, order)
.success(function (data) {
$scope.data.orderId = data.id;
cart.getProducts().length = 0;
})
.error(function (error) {
$scope.data.orderError = error;
}).finally(function () {
$location.path("/uploaded");
});
}

Answer 1

you should use a separate service to handle the http post .
var app = angular.module("myApp", []);
app.factory("OrderService", ["$http", function ($http) {
this.PostDownVote = function(orderUrl, upVoteCount) {
return $http.post(orderUrl, upVoteCount);
}
this.PostOrder = function(orderUrl, order) {
// do something
}
return this;
}]);
Now inject this OrderService to you controller and use it.
app.controller("ordersCtrl", function ($scope, $http, ordersUrl, OrderService) {
$scope.downVoteOrder = function(order) {
$scope.selectedOrder = order;
order.upVoteCount--;
OrderService.PostDownVote(ordersUrl, order.upVoteCount)
.success(data) {// do something}
.error(data) {// do something}
}
});