improved courses kml download

rowers/courses.py

@@ -33,6 +33,11 @@ from rowers.utils import geo_distance
 
 ns = {'opengis': 'http://www.opengis.net/kml/2.2'}
 
+xmlns_uris_dict = {'gx': 'http://www.google.com/kml/ext/2.2',
+                   'kml': 'http://www.google.com/kml/ext/2.2',
+                   'atom': "http://www.w3.org/2005/Atom",
+                   '': "http://www.opengis.net/kml/2.2"}
+
 
 from rowers.models import (
     Rower, Workout,
@@ -91,11 +96,18 @@ def get_polygons(polygonpms):
             'points':points
             })
 
+
     return polygons
     
 
 def coursetokml(course):
     top = Element('kml')
+    for prefix, uri in xmlns_uris_dict.items():
+        if prefix != '':
+            top.attrib['xmlns:' + prefix] = uri
+        else:
+            top.attrib['xmlns'] = uri
+            
     document = SubElement(top,'Document')
     name = SubElement(document, 'name')
     name.text = 'Courses.kml'