namespaces.py 文件源码

def href_for(self, operation, qs=None, **kwargs):
        """
        Construct an full href for an operation against a resource.

        :parm qs: the query string dictionary, if any
        :param kwargs: additional arguments for path expansion

        """
        url = urljoin(request.url_root, self.url_for(operation, **kwargs))
        qs_character = "?" if url.find("?") == -1 else "&"

        return "{}{}".format(
            url,
            "{}{}".format(qs_character, urlencode(qs)) if qs else "",
        )