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Dave Cameron b83de7eb11 Use drf_yasg to generate swagger
drf_yasg provides more complete swagger output, allowing for generation
of usable clients.

Some custom work was needed to accommodate Netbox's custom field
serializers, and to provide x-nullable attributes where appropriate.
2018-03-15 17:07:58 -04:00

61 lines
2.5 KiB
Python

from drf_yasg import openapi
from drf_yasg.inspectors import FieldInspector, NotHandled, PaginatorInspector
from rest_framework.fields import ChoiceField
from extras.api.customfields import CustomFieldsSerializer
from utilities.api import ChoiceFieldSerializer
class CustomChoiceFieldInspector(FieldInspector):
def field_to_swagger_object(self, field, swagger_object_type, use_references, **kwargs):
# this returns a callable which extracts title, description and other stuff
# https://drf-yasg.readthedocs.io/en/stable/_modules/drf_yasg/inspectors/base.html#FieldInspector._get_partial_types
SwaggerType, _ = self._get_partial_types(field, swagger_object_type, use_references, **kwargs)
if isinstance(field, ChoiceFieldSerializer):
value_schema = openapi.Schema(type=openapi.TYPE_INTEGER)
if set([None] + list(field._choices.keys())) == {None, True, False}:
# Special case face and connection_status because the only keys for choices are True and False,
# but the underlying field is still a NullBooleanField
value_schema = openapi.Schema(type=openapi.TYPE_BOOLEAN)
value_schema['x-nullable'] = True
schema = SwaggerType(type=openapi.TYPE_OBJECT, required=["label", "value"], properties={
"label": openapi.Schema(type=openapi.TYPE_STRING),
"value": value_schema
})
return schema
elif isinstance(field, CustomFieldsSerializer):
schema = SwaggerType(type=openapi.TYPE_OBJECT)
return schema
return NotHandled
class NullableBooleanFieldInspector(FieldInspector):
def process_result(self, result, method_name, obj, **kwargs):
if isinstance(result, openapi.Schema) and isinstance(obj, ChoiceField) and result.type == 'boolean':
keys = obj.choices.keys()
if set(keys) == {None, True, False}:
result['x-nullable'] = True
result.type = 'boolean'
return result
class NullablePaginatorInspector(PaginatorInspector):
def process_result(self, result, method_name, obj, **kwargs):
if method_name == 'get_paginated_response' and isinstance(result, openapi.Schema):
next = result.properties['next']
if isinstance(next, openapi.Schema):
next['x-nullable'] = True
previous = result.properties['previous']
if isinstance(previous, openapi.Schema):
previous['x-nullable'] = True
return result