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Python 2.6 compatibility for #19385

This commit is contained in:
Anssi Kääriäinen 2013-03-24 19:00:24 +02:00
parent 97774429ae
commit 9572a3992b
1 changed files with 6 additions and 4 deletions
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10
django/db/models/fields/related.py
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@ -295,8 +295,9 @@ class ReverseSingleRelatedObjectDescriptor(six.with_metaclass(RenameRelatedObjec
if None in val:
rel_obj = None
else:
params = {rh_field.attname: getattr(instance, lh_field.attname)
for lh_field, rh_field in self.field.related_fields}
params = dict(
(rh_field.attname, getattr(instance, lh_field.attname))
for lh_field, rh_field in self.field.related_fields)
params.update(self.field.get_extra_descriptor_filter(instance))
qs = self.get_query_set(instance=instance)
# Assuming the database enforces foreign keys, this won't fail.
@ -556,8 +557,9 @@ def create_many_related_manager(superclass, rel):
join_table = self.through._meta.db_table
connection = connections[db]
qn = connection.ops.quote_name
qs = qs.extra(select={'_prefetch_related_val_%s' % f.attname:
'%s.%s' % (qn(join_table), qn(f.column)) for f in fk.local_related_fields})
qs = qs.extra(select=dict(
('_prefetch_related_val_%s' % f.attname,
'%s.%s' % (qn(join_table), qn(f.column))) for f in fk.local_related_fields))
return (qs,
lambda result: tuple([getattr(result, '_prefetch_related_val_%s' % f.attname) for f in fk.local_related_fields]),
lambda inst: tuple([getattr(inst, f.attname) for f in fk.foreign_related_fields]),