#3501: sqlite selection on datetime members fail when datefield is null
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Reporter: anonymous | Owner: adrian
Status: new | Component: Database wrapper
Version: SVN | Keywords: sqlite
Stage: Unreviewed | Has_patch: 1
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Doing selects like {{{model.objects.filter(datefield__year=2007)}}} fail
when a datefield contains a NULL value.
Patch follows as a code block:
{{{
Index: django/db/backends/sqlite3/base.py
===================================================================
--- django/db/backends/sqlite3/base.py (revision 4501)
+++ django/db/backends/sqlite3/base.py (working copy)
@@ -119,6 +119,7 @@
return 'django_extract("%s", %s)' % (lookup_type.lower(), table_name)
def _sqlite_extract(lookup_type, dt):
+ if not dt: return None
try:
dt = util.typecast_timestamp(dt)
except (ValueError, TypeError):
}}}
Thanks for all the good work!
Niels Poppe
--
Ticket URL: <http://code.djangoproject.com/ticket/3501>
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