Django：如何获取查询集的相关对象？(Django: How to get related objects of a queryset?)

 不要使用callbacks ，这是过去。 $http服务返回承诺对象，这是更方便的选项（错误处理，承诺链接）： 
 
app.factory('socialMedia', ['$http', function($http){
    return {
        fetchInstagram: function() {       
            var url = "https://api.instagram.com/v1/users/*******/media/recent?client_id=*****&callback=JSON_CALLBACK";
            return $http.jsonp(url).then(function(response) {
                return response.data;
            });
        }
    }
}]);
 
 确保你从fetchInstagram方法返回Promise。 
 
 然后在控制器中，你会像这样使用它： 
 
socialMedia.fetchInstagram().then(function(data) {
    $scope.data = data;
});

Don't use callbacks, it's the past. $http service returns promise object, which is much more convenient option (error handling, promise chaining):
 
app.factory('socialMedia', ['$http', function($http){
    return {
        fetchInstagram: function() {       
            var url = "https://api.instagram.com/v1/users/*******/media/recent?client_id=*****&callback=JSON_CALLBACK";
            return $http.jsonp(url).then(function(response) {
                return response.data;
            });
        }
    }
}]);
 
Make sure you return Promise from fetchInstagram method.
 
Then in controller you would use it like this:
 
socialMedia.fetchInstagram().then(function(data) {
    $scope.data = data;
});