def set_node_tags(self, node_id, tags): # remove duplicate tags tags = set(tags) with _session_for_write() as session: self.unset_node_tags(node_id) node_tags = [] for tag in tags: node_tag = models.NodeTag(tag=tag, node_id=node_id) session.add(node_tag) node_tags.append(node_tag) return node_tags
def add_node_tag(self, node_id, tag): node_tag = models.NodeTag(tag=tag, node_id=node_id) self._check_node_exists(node_id) try: with _session_for_write() as session: session.add(node_tag) session.flush() except db_exc.DBDuplicateEntry: # NOTE(zhenguo): ignore tags duplicates pass return node_tag