Ticket #11433: 3dhack2.diff

django/contrib/gis/db/backend/postgis/adaptor.py

@@ -6 +6 @@
 from psycopg2 import Binary
 from psycopg2.extensions import ISQLQuote
 
+from django.contrib.gis.geos import WKBWriter
+
+wkb_3d = WKBWriter()
+wkb_3d.outdim = 3
+
 class PostGISAdaptor(object):
     def __init__(self, geom):
         "Initializes on the geometry."
         # Getting the WKB (in string form, to allow easy pickling of
         # the adaptor) and the SRID from the geometry.
-        self.wkb = str(geom.wkb)
+        if geom.hasz:
+          self.wkb = str(wkb_3d.write(geom))
+        else:
+          self.wkb = str(geom.wkb) 
         self.srid = geom.srid
 
     def __conform__(self, proto):