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Merge 42f701e024 into 5ace7174d4

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This commit is contained in:
Justin Plock 2016-02-18 18:25:24 +00:00
commit 034f4a41ab
2 changed files with 30 additions and 11 deletions
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13
rest_framework/compat.py
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@ -268,3 +268,16 @@ def get_all_related_many_to_many_objects(opts):
return opts.get_all_related_many_to_many_objects()
else:
return [r for r in opts.related_objects if r.field.many_to_many]
def get_remote_field(field):
"""
Django 1.9 removed usage of Rel objects, see
https://github.com/django/django/pull/4241
:param field: Field
:return: remote field
"""
if django.VERSION < (1, 9):
return field.rel
else:
return field.remote_field

28
rest_framework/utils/model_meta.py
View File

@ -14,7 +14,8 @@ from django.db import models
from django.utils import six
from rest_framework.compat import (
get_all_related_many_to_many_objects, get_all_related_objects
get_all_related_many_to_many_objects, get_all_related_objects,
get_remote_field
)
FieldInfo = namedtuple('FieldResult', [
@ -80,16 +81,17 @@ def get_field_info(model):
def _get_pk(opts):
pk = opts.pk
while pk.rel and pk.rel.parent_link:
remote_field = get_remote_field(pk)
while remote_field and remote_field.parent_link:
# If model is a child via multi-table inheritance, use parent's pk.
pk = pk.rel.to._meta.pk
pk = remote_field.to._meta.pk
return pk
def _get_fields(opts):
fields = OrderedDict()
for field in [field for field in opts.fields if field.serialize and not field.rel]:
for field in [field for field in opts.fields if field.serialize and not get_remote_field(field)]:
fields[field.name] = field
return fields
@ -104,10 +106,11 @@ def _get_forward_relationships(opts):
Returns an `OrderedDict` of field names to `RelationInfo`.
"""
forward_relations = OrderedDict()
for field in [field for field in opts.fields if field.serialize and field.rel]:
for field in [field for field in opts.fields if field.serialize and get_remote_field(field)]:
remote_field = get_remote_field(field)
forward_relations[field.name] = RelationInfo(
model_field=field,
related_model=_resolve_model(field.rel.to),
related_model=_resolve_model(remote_field.to),
to_many=False,
to_field=_get_to_field(field),
has_through_model=False
@ -115,14 +118,15 @@ def _get_forward_relationships(opts):
# Deal with forward many-to-many relationships.
for field in [field for field in opts.many_to_many if field.serialize]:
remote_field = get_remote_field(field)
forward_relations[field.name] = RelationInfo(
model_field=field,
related_model=_resolve_model(field.rel.to),
related_model=_resolve_model(remote_field.to),
to_many=True,
# manytomany do not have to_fields
to_field=None,
has_through_model=(
not field.rel.through._meta.auto_created
not remote_field.through._meta.auto_created
)
)
@ -141,10 +145,11 @@ def _get_reverse_relationships(opts):
for relation in get_all_related_objects(opts):
accessor_name = relation.get_accessor_name()
related = getattr(relation, 'related_model', relation.model)
remote_field = get_remote_field(relation.field)
reverse_relations[accessor_name] = RelationInfo(
model_field=None,
related_model=related,
to_many=relation.field.rel.multiple,
to_many=remote_field.multiple,
to_field=_get_to_field(relation.field),
has_through_model=False
)
@ -153,6 +158,7 @@ def _get_reverse_relationships(opts):
for relation in get_all_related_many_to_many_objects(opts):
accessor_name = relation.get_accessor_name()
related = getattr(relation, 'related_model', relation.model)
remote_field = get_remote_field(relation.field)
reverse_relations[accessor_name] = RelationInfo(
model_field=None,
related_model=related,
@ -160,8 +166,8 @@ def _get_reverse_relationships(opts):
# manytomany do not have to_fields
to_field=None,
has_through_model=(
(getattr(relation.field.rel, 'through', None) is not None) and
not relation.field.rel.through._meta.auto_created
(getattr(remote_field, 'through', None) is not None) and
not remote_field.through._meta.auto_created
)
)