[view/map][s]: make map view much more robust regarding bad or missing data in location fields.

src/view-map.js

@@ -256,9 +256,12 @@ my.Map = Backbone.View.extend({
 
     if (!(docs instanceof Array)) docs = [docs];
 
+    var count = 0;
+    var wrongSoFar = 0;
     _.every(docs,function(doc){
+      count += 1;
       var feature = self._getGeometryFromDocument(doc);
-      if (typeof feature === 'undefined'){
+      if (typeof feature === 'undefined' || feature === null){
         // Empty field
         return true;
       } else if (feature instanceof Object){
@@ -277,14 +280,18 @@ my.Map = Backbone.View.extend({
         try {
           self.features.addGeoJSON(feature);
         } catch (except) {
+          wrongSoFar += 1;
           var msg = 'Wrong geometry value';
           if (except.message) msg += ' (' + except.message + ')';
+          if (wrongSoFar <= 10) {
             my.notify(msg,{category:'error'});
-            return false;
+          }
         }
       } else {
+        wrongSoFar += 1
+        if (wrongSoFar <= 10) {
           my.notify('Wrong geometry value',{category:'error'});
-        return false;
+        }
       }
       return true;
     });
@@ -317,6 +324,9 @@ my.Map = Backbone.View.extend({
         return doc.attributes[this.state.get('geomField')];
       } else if (this.state.get('lonField') && this.state.get('latField')){
         // We'll create a GeoJSON like point object from the two lat/lon fields
+        var lon = doc.get(this.state.get('lonField'));
+        var lat = doc.get(this.state.get('latField'));
+        if (lon && lat) {
           return {
             type: 'Point',
             coordinates: [
@@ -325,6 +335,7 @@ my.Map = Backbone.View.extend({
               ]
           };
         }
+      }
       return null;
     }
   },