本文介绍了方法"rel_length"被指定为"rel_length".在Neo4j.rb中不起作用.的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我需要得到User
的朋友的朋友".因此,friend(rel_length: 2)
无效(忽略方法),返回了朋友.
I need to get "friends of friends" of User
. So, friend(rel_length: 2)
doesn't work (ignores method), returning friends.
class User
include Neo4j::ActiveNode
...
has_many :out, :friend, rel_class: Friend
...
end
class Friend
include Neo4j::ActiveRel
from_class User
to_class User
type 'friend'
property :activity, type: String
property :relation, type: String
property :token, type: String
end
推荐答案
对于后来发现此问题的任何人,原因是因为他使用的是旧版gem(请参见注释)
For anybody finding this later the reason was because he was using an older version of the gem (see the comments)
这篇关于方法"rel_length"被指定为"rel_length".在Neo4j.rb中不起作用.的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!