url with get and display geo items

1 files changed, 108 insertions, 1 deletions

diff --git a/ishtar_common/static/js/ishtar-map.js b/ishtar_common/static/js/ishtar-map.js
index a93813e61..b22467668 100644
--- a/ishtar_common/static/js/ishtar-map.js
+++ b/ishtar_common/static/js/ishtar-map.js
@@ -285,7 +285,9 @@ var enable_clustering = function(map_id){
 };
 
 var reinit_clustering = function(map_id){
-    cluster_source[map_id].getSource().clear();
+    if (map_id in cluster_source) {
+        cluster_source[map_id].getSource().clear();
+    }
     _styleCache = {};
 };
 
@@ -642,3 +644,108 @@ var display_lines_and_polys = function(map_id, lines_and_polys){
         map_view[map_id].fit(vector_source[map_id].getExtent());
     }
 };
+
+var disp_geo_items = function(map_id, base_url, slug, pk, display_both) {
+    var url = base_url;
+    if (slug === "operation") {
+        url += "?operation_pk=";
+    }
+    else {
+        url += "?context_record_pk=";
+    }
+    url += pk;
+
+    httpRequest = new XMLHttpRequest();
+    if (!httpRequest) { return; }
+    httpRequest.onreadystatechange = function() {
+        if (httpRequest.readyState === XMLHttpRequest.DONE) {
+            if (httpRequest.status === 200) {
+                geo_items = to_geo_items(JSON.parse(httpRequest.responseText), slug, display_both)
+                for (geo_item of geo_items['base-finds']) {
+                    display_associated_polys(map_id, geo_item, 'basefind');
+                }
+                for (geo_item of geo_items['context-records']) {
+                    display_associated_polys(map_id, geo_item, 'contextrecord');
+                }
+            } else { return; }
+        }
+    };
+    httpRequest.open('GET', url, true);
+    httpRequest.send();
+};
+
+var to_geo_items = function (obj, slug, display_both) {
+    var objects = {'context-records': [], 'base-finds': []};
+    if (slug === "operation") {
+        var crs = obj['properties']['context-records'];
+        for (cr of crs['features']) {
+            if (display_both) {
+                objects['base-finds'].push(cr['properties']['base-finds'])
+            }
+            delete cr['properties'];
+        }
+        objects['context-records'].push(crs);
+    }
+    else {
+        objects['base-finds'].push(obj['properties']['base-finds'])
+    }
+    return objects;
+}
+
+var display_associated_polys = function (map_id, polys, slug) {
+    _vector_features = geojson_format.readFeatures(polys);
+    _vector_source = new ol.source.Vector();
+    _vector_source.addFeatures(_vector_features);
+    style = get_associated_base_find_style;
+    if (slug === 'contextrecord') {
+        style = get_associated_context_record_style;
+    }
+    _vector_layer = new ol.layer.Vector({
+        source: _vector_source,
+        style: style
+    });
+    map[map_id].addLayer(_vector_layer);
+}
+
+var get_associated_base_find_style = function (feature) {
+    return new ol.style.Style({
+        stroke: new ol.style.Stroke({
+            color: 'rgba(0, 0, 0, 1)',
+            width: 2
+        }),
+        fill: new ol.style.Fill({
+            color: 'rgba(O, O, O, 0.2)'
+        })
+    });
+};
+
+var get_associated_context_record_style = function (feature) {
+    return new ol.style.Style({
+        stroke: new ol.style.Stroke({
+            color: 'rgba(255, 255, 255, 1)',
+            width: 2
+        }),
+        fill: new ol.style.Fill({
+            color: 'rgba(255, 255, 255, 0.2)'
+        })
+    });
+};
+
+var display_associated_points = function (map_id, points, slug) {
+    _point_features = geojson_format.readFeatures(points);
+    _cluster_source = new ol.source.Cluster({
+        distance: 40,
+        source: new ol.source.Vector()
+    });
+    style = get_associated_base_find_style;
+    if (slug === 'contextrecord') {
+        style = get_associated_context_record_style;
+    }
+    _cluster_layer = new ol.layer.Vector({
+        name: 'Cluster',
+        source: _cluster_source,
+        style: style
+    });
+    map[map_id].addLayer(_cluster_layer);
+    _cluster_source.getSource().addFeatures(_point_features);
+}
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