Fixed a regression in validate_unique introduced in [12098]. Thanks, Alex Gaynor.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@12099 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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@ -715,9 +715,7 @@ class Model(object):
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if not getattr(self, '_adding', False) and self.pk is not None:
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if not getattr(self, '_adding', False) and self.pk is not None:
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qs = qs.exclude(pk=self.pk)
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qs = qs.exclude(pk=self.pk)
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# This cute trick with extra/values is the most efficient way to
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if qs.exists():
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# tell if a particular query returns any results.
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if qs.extra(select={'a': 1}).values('a').order_by():
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if len(unique_check) == 1:
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if len(unique_check) == 1:
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key = unique_check[0]
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key = unique_check[0]
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else:
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else:
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