The Angular application will only display updated dynamic content upon refreshing the page

I am utilizing a factory to access my server-side data, using $routeParams to pass the id in the server request. Initially, everything functions correctly, but issues arise after the first run through the program. Here is a snippet of my code:

Controller:

klusplan.success(function(data) {
    console.log("onsucces",data);
    $scope.klusplan = data[0];
    $scope.klusplan.duratie = localStorage.getItem('Duration');
    $scope.klusplan.orderId = localStorage.getItem('klusplan');
    var tijdInUren = localStorage.getItem('Duration').split(":");
    var Uren = tijdInUren[0];
    var Minuten = tijdInUren[1];
    Uren = Uren + (Minuten / 60);

    $scope.klusplan.kosten = ($scope.klusplan.vm_kl_tarief * Uren);
});

Service:

 app.factory('klusplan', ['$http', '$routeParams', function($http, $routeParams) {
return $http.get('http://localhost:8080/getdata/klusplan.php?id='+$routeParams.klplan_id)

.success(function(data, status) {
    console.log("succes", data, status);
    return data;
})
.error(function(err) {
    return err;
}); 
}]);

Route:

.when('/klusplan/:klplan_id', {
        controller: 'KlusplanController',
        templateUrl: 'views/klusplan.html'
    })

I have attempted solutions such as:

$httpProvider.defaults.headers.get['If-Modified-Since'] = 'Mon, 26 Jul 1997 05:00:00 GMT';
$httpProvider.defaults.headers.get['Cache-Control'] = 'no-cache';
$httpProvider.defaults.headers.get['Pragma'] = 'no-cache';

and

app.run(function($rootScope, $templateCache) {
$rootScope.$on('$routeChangeStart', function(event, next, current) {
        console.log("event: ", event," next: ", next," current: ", current)
        $templateCache.remove(current.templateUrl);
});
});

Upon revisiting the application, the issues arise. Instead of triggering a new http request to fetch data from the server, the application displays data from the previous run. Any assistance would be greatly appreciated.

Answer №1

Directly invoking the klusplan.success function means you will consistently receive the previously fetched data.

To ensure continuous data retrieval, modify the factory as follows:

app.factory('klusplan', ['$http', '$routeParams', function($http, $routeParams) {
  return { 
    getData: function() { 
      return $http.get('http://localhost:8080/getdata/klusplan.php?id='+$routeParams.klplan_id);
    }
  };
}]);

Then, in the controller:

klusplan.getData().then(function(data) { ...

By using $http.get every time, you are consistently fetching new data from the server rather than relying on previous successful data retrieval.

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