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Refs #20939 -- Removed the Query._prepare_as_filter_value() hack.

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Simon Charette 2017-04-23 03:01:47 -04:00
parent ec50937bcb
commit c9159a082e
2 changed files with 17 additions and 22 deletions
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8
django/db/models/query.py
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@ -1099,14 +1099,16 @@ class QuerySet:
for field, objects in other._known_related_objects.items():
self._known_related_objects.setdefault(field, {}).update(objects)
def _prepare_as_filter_value(self):
def resolve_expression(self, *args, **kwargs):
if self._fields and len(self._fields) > 1:
# values() queryset can only be used as nested queries
# if they are set up to select only a single field.
if len(self._fields) > 1:
raise TypeError('Cannot use multi-field values as a filter value.')
queryset = self._clone()
return queryset.query.as_subquery_filter(queryset._db)
query = self.query.resolve_expression(*args, **kwargs)
query._db = self._db
return query
resolve_expression.queryset_only = True
def _add_hints(self, **hints):
"""