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Code Issues 32 Releases Wiki Activity

Fixed #10362 -- An update() that only affects a parent model no longer crashes.

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This includes a fairly large refactor of the update() query path (and
the initial portions of constructing the SQL for any query). The
previous code appears to have been only working more or less by accident
and was very fragile.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9967 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Malcolm Tredinnick
2009-03-04 05:34:01 +00:00
parent 14c8e5227a
commit 0e93f60c7f
3 changed files with 79 additions and 32 deletions
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10
tests/regressiontests/model_inheritance_regress/models.py
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@@ -222,7 +222,7 @@ True
>>> obj = SelfRefChild.objects.create(child_data=37, parent_data=42)
>>> obj.delete()
# Regression tests for #8076 - get_(next/previous)_by_date should
# Regression tests for #8076 - get_(next/previous)_by_date should work.
>>> c1 = ArticleWithAuthor(headline='ArticleWithAuthor 1', author="Person 1", pub_date=datetime.datetime(2005, 8, 1, 3, 0))
>>> c1.save()
>>> c2 = ArticleWithAuthor(headline='ArticleWithAuthor 2', author="Person 2", pub_date=datetime.datetime(2005, 8, 1, 10, 0))
@@ -267,4 +267,12 @@ DoesNotExist: ArticleWithAuthor matching query does not exist.
>>> fragment.find('pub_date', pos + 1) == -1
True
# It is possible to call update() and only change a field in an ancestor model
# (regression test for #10362).
>>> article = ArticleWithAuthor.objects.create(author="fred", headline="Hey there!", pub_date = datetime.datetime(2009, 3, 1, 8, 0, 0))
>>> ArticleWithAuthor.objects.filter(author="fred").update(headline="Oh, no!")
1
>>> ArticleWithAuthor.objects.filter(pk=article.pk).update(headline="Oh, no!")
1
"""}