https://tellerrandstories.de/wp-content/plugins/wp-google-maps-gold/js/v8/caching/fetcher.js?ver=7.1.2

1/* 
2 * Note, this does not auto-load, because it does not contain identifiable namespaces or module dependencies
3 * 
4 * For the beta, this is intentional. It will likely change with time
5*/
6jQuery(function($) {
7    WPGMZA.Map.prototype.__fetchFeaturesViaREST = WPGMZA.Map.prototype.fetchFeaturesViaREST;
8
9    WPGMZA.Map.prototype.fetchFeaturesViaREST = function(){
10        if(typeof WPGMZA_CACHE !== 'undefined' && typeof WPGMZA_CACHE.markers !== 'undefined' && typeof WPGMZA_CACHE.markers.defer !== 'undefined'){
11            /* Deferred loading */
12            if(WPGMZA_CACHE.markers.defer.trim().length > 0){
13                $.ajax(WPGMZA_CACHE.markers.defer.trim()).then((data) => {
14                    if(data && data instanceof Object){
15                        /* Repopulate the local cache now */
16                        for(let cacheKey in data){
17                            WPGMZA_CACHE.markers[cacheKey] = data[cacheKey];
18                        }
19
20                        if(typeof WPGMZA_CACHE.markers.data !== 'undefined'){
21                            /* Deferred data loaded correctly */
22                            this.fetchFeaturesViaCache();
23                            WPGMZA_CACHE.markers.info.source = "defer-cache";
24                        } else {
25                            /* Something has gone wrong */
26                            this.__fetchFeaturesViaREST();
27                            WPGMZA_CACHE.markers.info.source = "rest";
28                        }
29                    }
30                }).catch((error) => {
31                    /* Something went wrong, use original function */
32                    this.__fetchFeaturesViaREST();
33                    WPGMZA_CACHE.markers.info = {};
34                    WPGMZA_CACHE.markers.info.source = "rest";
35                });
36            } else {
37                /* Cache is not ready yet, use original function */
38                this.__fetchFeaturesViaREST();
39                WPGMZA_CACHE.markers.info = {};
40                WPGMZA_CACHE.markers.info.source = "rest";
41            }
42        } else {
43            /* Localized loading */
44            if(typeof WPGMZA_CACHE === 'undefined' || typeof WPGMZA_CACHE.markers === 'undefined' || typeof WPGMZA_CACHE.markers.data === 'undefined'){
45                /* Run the original function - Missing cache localized data */
46                this.__fetchFeaturesViaREST();
47                WPGMZA_CACHE.markers.info.source = "rest";
48            } else {
49                /* Load from the cache - Data was found in the page source*/
50                this.fetchFeaturesViaCache();
51                WPGMZA_CACHE.markers.info.source = "cache";
52            }
53        }
54	}
55
56    WPGMZA.Map.prototype.fetchFeaturesViaCache = function(){
57        const mapIds = [parseInt(this.id)];
58        if(this.mashupIDs && this.mashupIDs.length){
59            for(let id of this.mashupIDs){
60                mapIds.push(parseInt(id));
61            }
62        }
63
64        let cachedData = [];
65        for(let mapId of mapIds){
66            if(typeof WPGMZA_CACHE.markers.data[mapId] !== 'undefined'){
67                cachedData = cachedData.concat(WPGMZA_CACHE.markers.data[mapId]);
68            }
69        }
70
71        this.onMarkersFetched(cachedData, false);
72
73        var self = this;
74        var data;
75        var filter = this.markerFilter.getFilteringParameters();
76        
77        data = this.getRESTParameters({
78            filter: JSON.stringify(filter)
79        });
80
81        data.exclude = "markers";
82        WPGMZA.restAPI.call("/features/", {
83            useCompressedPathVariable: true,
84            data: data,
85            success: function(result, status, xhr) {
86                self.onFeaturesFetched(result);
87            }
88        });
89    }
90})