AngularJS call scope function to 'refresh' scope model - angularjs

Question

I've been struggling with this for a few days now and can't seem to find a solution.
I have a simple listing in my view, fetched from MongoDB and I want it to refresh whenever I call the delete or update function.
Although it seems simple that I should be able to call a previously declared function within the same scope, it just doesn't work.
I tried setting the getDispositivos on a third service, but then the Injection gets all messed up. Declaring the function simply as var function () {...} but it doesn't work as well.
Any help is appreciated.
Here's my code:
var myApp = angular.module('appDispositivos', []);
/* My service */
myApp.service('dispositivosService',
['$http',
function($http) {
//...
this.getDispositivos = function(response) {
$http.get('http://localhost:3000/dispositivos').then(response);
}
//...
}
]
);
myApp.controller('dispositivoController',
['$scope', 'dispositivosService',
function($scope, dispositivosService) {
//This fetches data from Mongo...
$scope.getDispositivos = function () {
dispositivosService.getDispositivos(function(response) {
$scope.dispositivos = response.data;
});
};
//... and on page load it fills in the list
$scope.getDispositivos();
$scope.addDispositivo = function() {
dispositivosService.addDispositivo($scope.dispositivo);
$scope.getDispositivos(); //it should reload the view here...
$scope.dispositivo = '';
};
$scope.removeDispositivo = function (id) {
dispositivosService.removerDispositivo(id);
$scope.getDispositivos(); //... here
};
$scope.editDispositivo = function (id) {
dispositivosService.editDispositivo(id);
$scope.getDispositivos(); //... and here.
};
}
]
);

Answer 1

On service
this.getDispositivos = function(response) {
return $http.get('http://localhost:3000/dispositivos');
}
on controller
$scope.addDispositivo = function() {
dispositivosService.addDispositivo($scope.dispositivo).then(function(){
$scope.getDispositivos(); //it should reload the view here...
$scope.dispositivo = '';
});
};

Answer 2

None of the solutions worked. Later on I found that the GET request does execute, asynchronously however. This means that it loads the data into $scope before the POST request has finished, thus not including the just-included new data.
The solution is to synchronize the tasks (somewhat like in multithread programming), using the $q module, and to work with deferred objects and promises. So, on my service
.factory('dispositivosService',
['$http', '$q',
function($http, $q) {
return {
getDispositivos: function (id) {
getDef = $q.defer();
$http.get('http://myUrlAddress'+id)
.success(function(response){
getDef.resolve(response);
})
.error(function () {
getDef.reject('Failed GET request');
});
return getDef.promise;
}
}
}
}
])
On my controller:
$scope.addDispositivo = function() {
dispositivosService.addDispositivo($scope.dispositivo)
.then(function(){
dispositivosService.getDispositivos()
.then(function(dispositivos){
$scope.dispositivos = dispositivos;
$scope.dispositivo = '';
})
});
};
Being my 'response' object a $q.defer type object, then I can tell Angular that the response is asynchronous, and .then(---).then(---); logic completes the tasks, as the asynchronous requests finish.