https://rekrutacja.pedagogium.pl/pdg-irk-app/content/script/irk/services/slownik/slownikToolFactory.js

1angular.module('irk')
2    .factory('slownik',
3        function($http, Session, $q) {
4            var slownikTool = {};
5            slownikTool._cache = {};
6            slownikTool._promiseCache = {};
7            
8            slownikTool.get = function(typ) {
9                if(angular.isUndefined(slownikTool._cache[typ])) {
10                    slownikTool._cache[typ] = [];
11                    
12                    $http.get('REST/slownik/'+typ, {}).then(
13                        function(response) {
14                            for(var a in response.data) {
15                                slownikTool._cache[typ].push(response.data[a]);
16                            }
17                        });
18                }
19                return slownikTool._cache[typ];
20            };
21            
22            slownikTool.getPromise = function(typ) {
23                if(angular.isUndefined(slownikTool._promiseCache[typ])) {
24                    slownikTool._promiseCache[typ] = $http.get('REST/slownik/'+typ, {}).then(
25                        function(response) {
26                            return response.data;
27                        });
28                }
29                return slownikTool._promiseCache[typ];
30            };
31            
32            slownikTool.clearCache = function() {
33                slownikTool._cache = {};
34                slownikTool._promiseCache = {};
35            };
36            
37            Session.registerObserverCallback(function() {
38                slownikTool.clearCache();
39            });
40
41            return slownikTool;
42        });