|
8
|
1 define([ "ol" ], function(ol) {
|
|
|
2
|
|
|
3 function buildFilter(filter) {
|
|
|
4 if (filter instanceof Function)
|
|
|
5 return filter;
|
|
|
6 if (filter) {
|
|
|
7 var match = function(str) {
|
|
|
8 return {
|
|
|
9 test : function(x) {
|
|
|
10 if (x === null || x === undefined)
|
|
|
11 return false;
|
|
|
12 return x.toString().startsWith(str);
|
|
|
13 }
|
|
|
14 };
|
|
|
15 };
|
|
|
16
|
|
|
17 for ( var p in filter) {
|
|
|
18 if (typeof (filter[p]) == "string" && filter[p].endsWith("*"))
|
|
|
19 filter[p] = match(filter[p].substr(0, filter[p].length));
|
|
|
20 }
|
|
|
21 return function(ft) {
|
|
|
22 for ( var p in filter) {
|
|
|
23 if (filter[p] && filter[p].test ? !filter[p]
|
|
|
24 .test(ft.get(p)) : ft.get(p) != filter[p])
|
|
|
25 return false;
|
|
|
26 }
|
|
|
27 return true;
|
|
|
28 };
|
|
|
29 }
|
|
|
30 throw new Error("Unsupported filter");
|
|
|
31 }
|
|
|
32
|
|
|
33 /**
|
|
|
34 * @constructor
|
|
|
35 * @example
|
|
|
36 *
|
|
|
37 * <pre>
|
|
|
38 * var store = new VectorStore({
|
|
|
39 * source : vectorSource
|
|
|
40 * });
|
|
|
41 *
|
|
|
42 * var req = new VectorStoreQuery({
|
|
|
43 * city : "Moscow"
|
|
|
44 * }, [ 30, 50, 40, 60 ]);
|
|
|
45 *
|
|
|
46 * store.query(req).then(showResults);
|
|
|
47 * </pre>
|
|
|
48 */
|
|
|
49 return function(filter, extent) {
|
|
|
50 var match = filter && buildFilter(filter);
|
|
|
51
|
|
|
52 var query = function(ft) {
|
|
|
53 if (extent) {
|
|
|
54 var g = gt.getGeometry();
|
|
|
55 if (!g || !ol.extent.intersects(extent, g.getExtent()))
|
|
|
56 return false;
|
|
|
57 }
|
|
|
58
|
|
|
59 return !match || match(ft);
|
|
|
60 };
|
|
|
61
|
|
|
62 query.extent = extent;
|
|
|
63 query.predicate = match;
|
|
|
64
|
|
|
65 return query;
|
|
|
66 };
|
|
|
67 }); |
