django_rest.py 文件源码

 复制代码def extract_related_model(self, related_field, django_conf, loc=()):
        """
        Extracts related model based on given field. It also checks that
        given field is related to another model.
        """
        model = self.extract_model(related_field, django_conf, loc)
        related_field = model._meta.get_field(related_field)
        if related_field.related_model is None:
            raise utils.DRFAdapterException(
                'Field {!r} is not related with another model'.format(
                    related_field), loc=loc)
        return related_field.related_model