Fixed #2031 -- Don't try to remove microseconds on date objects (only datetime)

for MySQL. Refs #316.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@3183 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/models/fields/__init__.py

@@ -475,7 +475,7 @@ class DateTimeField(DateField):
         if value is not None:
             # MySQL will throw a warning if microseconds are given, because it
             # doesn't support microseconds.
-            if settings.DATABASE_ENGINE == 'mysql':
+            if settings.DATABASE_ENGINE == 'mysql' and hasattr(value, 'microsecond'):
                 value = value.replace(microsecond=0)
             value = str(value)
         return Field.get_db_prep_save(self, value)