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Add support for Django <1.6 where appearently no to_field existed

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This commit is contained in:
Tom Jaster 2015-01-19 16:33:34 +01:00
parent d47f29a207
commit 49ecaa7d9e
1 changed files with 13 additions and 2 deletions
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15
rest_framework/utils/model_meta.py
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@ -97,13 +97,18 @@ def _get_forward_relationships(opts):
"""
forward_relations = OrderedDict()
for field in [field for field in opts.fields if field.serialize and field.rel]:
# For < django 1.6
if hasattr(field, 'to_fields'):
to_field = field.to_fields[0] if len(field.to_fields) else None
else:
to_field = None
forward_relations[field.name] = RelationInfo(
model_field=field,
related=_resolve_model(field.rel.to),
to_many=False,
# to_fields is an array but django lets you only set one to_field
to_field=field.to_fields[0] if len(field.to_fields) else None,
to_field=to_field,
has_through_model=False
)
@ -130,11 +135,17 @@ def _get_reverse_relationships(opts):
reverse_relations = OrderedDict()
for relation in opts.get_all_related_objects():
accessor_name = relation.get_accessor_name()
# For < django 1.6
if hasattr(relation.field, 'to_fields'):
to_field = relation.field.to_fields[0] if len(relation.field.to_fields) else None
else:
to_field = None
reverse_relations[accessor_name] = RelationInfo(
model_field=None,
related=relation.model,
to_many=relation.field.rel.multiple,
to_field=relation.field.to_fields[0] if len(relation.field.to_fields) else None,
to_field=to_field,
has_through_model=False
)