jsonhelpers2.py 文件源码

def __call__(self, info):
        """
        If a schema is present, replace value with output from schema.dump(..).
        """
        original_render = super().__call__(info)

        def schema_render(value, system):
            request = system.get('request')
            if (request is not None and isinstance(getattr(request, 'render_schema', None), Schema)):
                try:
                    value, errors = request.render_schema.dump(value)
                except Exception:
                    errors = True

                if errors:
                    raise HTTPInternalServerError(body="Serialization failed.")

            return original_render(value, system)

        return schema_render