diff -r 3a3ab6bbccc5 -r 0e52d72104a6 goa/__init__.py
--- a/goa/__init__.py	Mon Jan 19 19:57:41 2009 +0100
+++ b/goa/__init__.py	Tue Jan 20 16:29:06 2009 +0100
@@ -28,7 +28,7 @@
     regular python datetime object
     """
     if yamstype is None:
-        yamstype = guess_yamstype_from_date(datetimeobj)
+        yamstype = guess_yamstype_for_date(datetimeobj)
     assert yamstype is not None
     if yamstype == 'Datetime':
         # don't use date, db model doesn't actually support it, only datetime