index.py 文件源码

def get_definition_model(self, cls):
        try:
            field = self.get_field(cls)
            return field.model
        except models.fields.FieldDoesNotExist:
            # Find where it was defined by walking the inheritance tree
            for base_cls in inspect.getmro(cls):
                if self.field_name in base_cls.__dict__:
                    return base_cls