revision_tags.py 文件源码

def on_post(self, req, resp, revision_id, tag=None):
        """Creates a revision tag."""
        body = req.stream.read(req.content_length or 0)

        try:
            tag_data = yaml.safe_load(body)
        except yaml.YAMLError as e:
            error_msg = ("Could not parse the request body into YAML data. "
                         "Details: %s." % e)
            LOG.error(error_msg)
            raise falcon.HTTPBadRequest(description=e)

        try:
            resp_tag = db_api.revision_tag_create(revision_id, tag, tag_data)
        except errors.RevisionNotFound as e:
            raise falcon.HTTPNotFound(description=e.format_message())
        except errors.RevisionTagBadFormat as e:
            raise falcon.HTTPBadRequest(description=e.format_message())

        resp_body = revision_tag_view.ViewBuilder().show(resp_tag)
        resp.status = falcon.HTTP_201
        resp.body = resp_body