Malcolm Tredinnick 31e059c9b3 [1.0.X] Improved table join handling for comparisons against NULL. ... This fixes a broad class of bugs involving filters that look for missing related models and fields. Most of them don't seem to have been reported (the added tests cover the root cause). The exception is that this has also fixed #9968. Backport of r9979 from trunk. git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.0.X@9980 bcc190cf-cafb-0310-a4f2-bffc1f526a37		2009-03-06 02:09:59 +00:00
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__init__.py	Fixes #2737 -- Added code to allow None as a query value for __exact queries, raising an error otherwise. __exact=None is interpreted as the SQL 'value = NULL'. This fixes some minor problems with queries on unsaved objects with related object sets, and stops queries with a value of None being outright ignored (even if they reference an unknown attribute).	2006-10-14 02:48:05 +00:00
models.py	[1.0.X] Improved table join handling for comparisons against NULL.	2009-03-06 02:09:59 +00:00