diff -r 000000000000 -r 0d40e90630ef web/lib/django/contrib/gis/db/models/sql/subqueries.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/django/contrib/gis/db/models/sql/subqueries.py	Wed Jan 20 00:34:04 2010 +0100
@@ -0,0 +1,39 @@
+from django.contrib.gis.db.backend import SpatialBackend
+from django.db.models.query import insert_query
+
+if SpatialBackend.oracle:
+    from django.db import connection
+    from django.db.models.sql.subqueries import InsertQuery
+
+    class OracleGeoInsertQuery(InsertQuery):
+        def insert_values(self, insert_values, raw_values=False):
+            """
+            This routine is overloaded from InsertQuery so that no parameter is
+            passed into cx_Oracle for NULL geometries.  The reason is that
+            cx_Oracle has no way to bind Oracle object values (like
+            MDSYS.SDO_GEOMETRY).
+            """
+            placeholders, values = [], []
+            for field, val in insert_values:
+                if hasattr(field, 'get_placeholder'):
+                    ph = field.get_placeholder(val)
+                else:
+                    ph = '%s'
+
+                placeholders.append(ph)
+                self.columns.append(field.column)
+
+                # If 'NULL' for the placeholder, omit appending None
+                # to the values list (which is used for db params).
+                if not ph == 'NULL':
+                    values.append(val)
+            if raw_values:
+                self.values.extend(values)
+            else:
+                self.params += tuple(values)
+                self.values.extend(placeholders)
+
+    def insert_query(model, values, return_id=False, raw_values=False):
+        query = OracleGeoInsertQuery(model, connection)
+        query.insert_values(values, raw_values)
+        return query.execute_sql(return_id)