def VisitFollowerIds(cls,
client,
viewpoint_id,
visitor,
callback,
consistent_read=False):
"""Visit all followers of the specified viewpoint and invoke the
"visitor" function with each follower id. See VisitIndexKeys for
additional detail.
"""
def _OnVisit(follower_key, visit_callback):
visitor(follower_key.hash_key, visit_callback)
query_expr = ('follower.viewpoint_id={id}', {'id': viewpoint_id})
Follower.VisitIndexKeys(client,
query_expr,
_OnVisit,
callback,
consistent_read=consistent_read)
