tag.py 文件源码

def delete(self, paths):
        """See L{TagAPI.delete}.

        Permissions for deleted L{Tag}s are removed from the cache.
        """
        if isgenerator(paths):
            paths = list(paths)
        # FIXME getObjectIDs is called twice--once here and once in
        # TagAPI.delete.  It would be better if we only did this once, not to
        # mention that this breaks encapsulation by bypassing the model layer
        # and accessing the data layer directly. -jkakar
        objectIDs = set(getObjectIDs(paths))
        RecentObjectActivityCache().clear(objectIDs)
        usernames = set([path.split('/')[0] for path in paths])
        RecentUserActivityCache().clear(usernames)
        PermissionCache().clearTagPermissions(paths)
        return self._api.delete(paths)