[1.0.X] Fixed #10443 -- Fixed model attribute updating after r10004.

Adding a get_db_prep_save() call to the UpdateQuery code path meant it
was being called twice if you updated an existing model attribute. This
change removes that double call and also makes TimeField.to_python() a
little more robust for the benefit of the Oracle backend (just in case).

Backport of r10013 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.0.X@10014 bcc190cf-cafb-0310-a4f2-bffc1f526a37

1 files changed, 24 insertions, 1 deletions

diff --git a/tests/regressiontests/model_regress/models.py b/tests/regressiontests/model_regress/models.py
index 3c87e1c1e9..4bd27f2383 100644
--- a/tests/regressiontests/model_regress/models.py
+++ b/tests/regressiontests/model_regress/models.py
@@ -1,5 +1,9 @@
 # coding: utf-8
+import datetime
+
+from django.conf import settings
 from django.db import models
+from django.utils import tzinfo
 
 CHOICES = (
     (1, 'first'),
@@ -140,5 +144,24 @@ datetime.datetime(2000, 1, 1, 6, 1, 1)
 >>> BrokenUnicodeMethod.objects.all()
 [<BrokenUnicodeMethod: [Bad Unicode data]>]
 
+"""}
+
+if settings.DATABASE_ENGINE != "mysql":
+    __test__["non-mysql-tests"] = """
+# Saving an updating with timezone-aware datetime Python objects. Regression
+# test for #10443.
+
+# The idea is that all these creations and saving should work without crashing.
+# It's not rocket science.
+>>> Article.objects.all().delete()
+>>> dt1 = datetime.datetime(2008, 8, 31, 16, 20, tzinfo=tzinfo.FixedOffset(600))
+>>> dt2 = datetime.datetime(2008, 8, 31, 17, 20, tzinfo=tzinfo.FixedOffset(600))
+>>> obj = Article.objects.create(headline="A headline", pub_date=dt1, article_text="foo")
+
+>>> obj.pub_date = dt2
+>>> obj.save()
+>>> Article.objects.filter(headline="A headline").update(pub_date=dt1)
+1
+
 """
-}
+