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 get_remote_field(field)]:
forward_relations[field.name] = RelationInfo(
model_field=field,
related_model=get_related_model(field),
to_many=False,
to_field=_get_to_field(field),
has_through_model=False,
)
# Deal with forward many-to-many relationships.
for field in [field for field in opts.many_to_many if field.serialize]:
forward_relations[field.name] = RelationInfo(
model_field=field,
related_model=get_related_model(field),
to_many=True,
# manytomany do not have to_fields
to_field=None,
has_through_model=(not get_remote_field(field).through._meta.auto_created),
)
return forward_relations
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 get_remote_field(field) and not (field.primary_key and field.one_to_one)
# If the field is a OneToOneField and it's been marked as PK, then this
# is a multi-table inheritance auto created PK ('%_ptr').
]:
forward_relations[field.name] = RelationInfo(
model_field=field,
related_model=get_related_model(field),
to_many=False,
to_field=_get_to_field(field),
has_through_model=False,
reverse=False
)
# Deal with forward many-to-many relationships.
for field in [field for field in opts.many_to_many if field.serialize]:
forward_relations[field.name] = RelationInfo(
model_field=field,
related_model=get_related_model(field),
to_many=True,
# manytomany do not have to_fields
to_field=None,
has_through_model=(
not get_remote_field(field).through._meta.auto_created
),
reverse=False
)
return forward_relations
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 get_remote_field(field)
]:
forward_relations[field.name] = RelationInfo(
model_field=field,
related_model=get_related_model(field),
to_many=False,
to_field=_get_to_field(field),
has_through_model=False,
reverse=False)
# Deal with forward many-to-many relationships.
for field in [field for field in opts.many_to_many if field.serialize]:
forward_relations[field.name] = RelationInfo(
model_field=field,
related_model=get_related_model(field),
to_many=True,
# manytomany do not have to_fields
to_field=None,
has_through_model=(
not get_remote_field(field).through._meta.auto_created),
reverse=False)
return forward_relations
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 get_remote_field(field)
and not (field.primary_key and field.one_to_one)
# If the field is a OneToOneField and it's been marked as PK, then this
# is a multi-table inheritance auto created PK ('%_ptr').
]:
forward_relations[field.name] = RelationInfo(
model_field=field,
related_model=get_related_model(field),
to_many=False,
to_field=_get_to_field(field),
has_through_model=False,
reverse=False)
# Deal with forward many-to-many relationships.
for field in [field for field in opts.many_to_many if field.serialize]:
forward_relations[field.name] = RelationInfo(
model_field=field,
related_model=get_related_model(field),
to_many=True,
# manytomany do not have to_fields
to_field=None,
has_through_model=(
not get_remote_field(field).through._meta.auto_created),
reverse=False)
return forward_relations
def test_get_remote_field_with_new_django_version(self):
class MockField(object):
remote_field = 'example_remote_field'
compat.django.VERSION = (1, 10)
assert compat.get_remote_field(
MockField(), default='default_value') == 'example_remote_field'
assert compat.get_remote_field(
object(), default='default_value') == 'default_value'
def _get_pk(opts):
pk = opts.pk
rel = get_remote_field(pk)
while rel and rel.parent_link:
# If model is a child via multi-table inheritance, use parent's pk.
pk = get_related_model(pk)._meta.pk
rel = get_remote_field(pk)
return pk
def _get_pk(opts):
pk = opts.pk
rel = get_remote_field(pk)
while rel and rel.parent_link:
# If model is a child via multi-table inheritance, use parent's pk.
pk = get_related_model(pk)._meta.pk
rel = get_remote_field(pk)
return pk
def _get_fields(opts):
fields = OrderedDict()
for field in [
field for field in opts.fields
if field.serialize and not get_remote_field(field)
]:
fields[field.name] = field
return fields
def _get_reverse_relationships(opts):
"""
Returns an `OrderedDict` of field names to `RelationInfo`.
"""
# Note that we have a hack here to handle internal API differences for
# this internal API across Django 1.7 -> Django 1.8.
# See: https://code.djangoproject.com/ticket/24208
reverse_relations = OrderedDict()
all_related_objects = [
r for r in opts.related_objects if not r.field.many_to_many
]
for relation in all_related_objects:
accessor_name = relation.get_accessor_name()
related = getattr(relation, 'related_model', relation.model)
reverse_relations[accessor_name] = RelationInfo(
model_field=None,
related_model=related,
to_many=get_remote_field(relation.field).multiple,
to_field=_get_to_field(relation.field),
has_through_model=False,
reverse=True)
# Deal with reverse many-to-many relationships.
all_related_many_to_many_objects = [
r for r in opts.related_objects if r.field.many_to_many
]
for relation in all_related_many_to_many_objects:
accessor_name = relation.get_accessor_name()
related = getattr(relation, 'related_model', relation.model)
reverse_relations[accessor_name] = RelationInfo(
model_field=None,
related_model=related,
to_many=True,
# manytomany do not have to_fields
to_field=None,
has_through_model=((getattr(get_remote_field(relation.field),
'through', None) is not None)
and not get_remote_field(
relation.field).through._meta.auto_created),
reverse=True)
return reverse_relations
def _get_reverse_relationships(opts):
"""
Returns an `OrderedDict` of field names to `RelationInfo`.
"""
# Note that we have a hack here to handle internal API differences for
# this internal API across Django 1.7 -> Django 1.8.
# See: https://code.djangoproject.com/ticket/24208
reverse_relations = OrderedDict()
all_related_objects = [r for r in opts.related_objects if not r.field.many_to_many]
for relation in all_related_objects:
accessor_name = relation.get_accessor_name()
related = getattr(relation, 'related_model', relation.model)
reverse_relations[accessor_name] = RelationInfo(
model_field=None,
related_model=related,
to_many=get_remote_field(relation.field).multiple,
to_field=_get_to_field(relation.field),
has_through_model=False,
reverse=True
)
# Deal with reverse many-to-many relationships.
all_related_many_to_many_objects = [r for r in opts.related_objects if r.field.many_to_many]
for relation in all_related_many_to_many_objects:
accessor_name = relation.get_accessor_name()
related = getattr(relation, 'related_model', relation.model)
reverse_relations[accessor_name] = RelationInfo(
model_field=None,
related_model=related,
to_many=True,
# manytomany do not have to_fields
to_field=None,
has_through_model=(
(getattr(get_remote_field(relation.field), 'through', None) is not None) and
not get_remote_field(relation.field).through._meta.auto_created
),
reverse=True
)
return reverse_relations
def _get_fields(opts):
fields = OrderedDict()
for field in [field for field in opts.fields if field.serialize and not get_remote_field(field)]:
fields[field.name] = field
return fields
def test_get_remote_field_with_new_django_version(self):
class MockField(object):
remote_field = 'example_remote_field'
compat.django.VERSION = (1, 10)
assert compat.get_remote_field(MockField(), default='default_value') == 'example_remote_field'
assert compat.get_remote_field(object(), default='default_value') == 'default_value'