Ticket #9204: stand_alone_icon_generation.diff

django/contrib/gis/maps/google/gmap.py

@@ -71 +71 @@
                     else:
                         getattr(self, varname).append(overlay_class(overlay))
 
-        # Pulling any icons from the markers.
-        self.icons = [marker.icon for marker in self.markers if marker.icon]
+        # Pull any icons from the markers.
+        self._generate_icon_list()
 
         # If GMarker, GPolygons, and/or GPolylines are used the zoom will be
         # automatically calculated via the Google Maps API.  If both a zoom
@@ -90 +90 @@
         if center is None: center = (0, 0)
         self.center = center
 
+    def _generate_icon_list(self):
+        """
+        Sets the icon list for this map in 
+            ``self.icons``
+            
+        This method is a stand alone so that it may be called again after the map
+        object created (in case new markers are added to the map after its
+        instantiation).
+        
+        """
+        self.icons =  [marker.icon for marker in self.markers if marker.icon]
+        return None
+    
     def render(self):
         """
         Generates the JavaScript necessary for displaying this Google Map.
         """
+        self._generate_icon_list()
         params = {'calc_zoom' : self.calc_zoom,
                   'center' : self.center,
                   'dom_id' : self.dom_id,