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Allow Query objects to be values in query filters. This already existed for 

relations, but not for normal fields. The latter comes up naturally in some
update statements.

Refs #7095


git-svn-id: http://code.djangoproject.com/svn/django/trunk@7494 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Malcolm Tredinnick 2008-04-28 07:07:17 +00:00
parent e07a457c00
commit 1bb8260084
1 changed files with 4 additions and 0 deletions
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4
django/db/models/fields/__init__.py
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@ -9,6 +9,7 @@ except ImportError:
from django.db import get_creation_module from django.db import get_creation_module
from django.db.models import signals from django.db.models import signals
from django.db.models.query_utils import QueryWrapper
from django.dispatch import dispatcher from django.dispatch import dispatcher
from django.conf import settings from django.conf import settings
from django.core import validators from django.core import validators
@ -226,6 +227,9 @@ class Field(object):
def get_db_prep_lookup(self, lookup_type, value): def get_db_prep_lookup(self, lookup_type, value):
"Returns field's value prepared for database lookup." "Returns field's value prepared for database lookup."
if hasattr(value, 'as_sql'):
sql, params = value.as_sql()
return QueryWrapper(('(%s)' % sql), params)
if lookup_type in ('exact', 'regex', 'iregex', 'gt', 'gte', 'lt', 'lte', 'month', 'day', 'search'): if lookup_type in ('exact', 'regex', 'iregex', 'gt', 'gte', 'lt', 'lte', 'month', 'day', 'search'):
return [value] return [value]
elif lookup_type in ('range', 'in'): elif lookup_type in ('range', 'in'):