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- """
- views.py # Houses `SchemaView`, `APIView` subclass.
- See schemas.__init__.py for package overview.
- """
- from rest_framework import exceptions, renderers
- from rest_framework.response import Response
- from rest_framework.schemas import coreapi
- from rest_framework.settings import api_settings
- from rest_framework.views import APIView
- class SchemaView(APIView):
- _ignore_model_permissions = True
- schema = None # exclude from schema
- renderer_classes = None
- schema_generator = None
- public = False
- def __init__(self, *args, **kwargs):
- super().__init__(*args, **kwargs)
- if self.renderer_classes is None:
- if coreapi.is_enabled():
- self.renderer_classes = [
- renderers.CoreAPIOpenAPIRenderer,
- renderers.CoreJSONRenderer
- ]
- else:
- self.renderer_classes = [
- renderers.OpenAPIRenderer,
- renderers.JSONOpenAPIRenderer,
- ]
- if renderers.BrowsableAPIRenderer in api_settings.DEFAULT_RENDERER_CLASSES:
- self.renderer_classes += [renderers.BrowsableAPIRenderer]
- def get(self, request, *args, **kwargs):
- schema = self.schema_generator.get_schema(request, self.public)
- if schema is None:
- raise exceptions.PermissionDenied()
- return Response(schema)
- def handle_exception(self, exc):
- # Schema renderers do not render exceptions, so re-perform content
- # negotiation with default renderers.
- self.renderer_classes = api_settings.DEFAULT_RENDERER_CLASSES
- neg = self.perform_content_negotiation(self.request, force=True)
- self.request.accepted_renderer, self.request.accepted_media_type = neg
- return super().handle_exception(exc)
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