问题描述
我已按照此处的说明进行安装通过
I've followed the instructions here, installing the composite_primary_keys gem via
sudo gem install composite_primary_keys
那很好.现在，当我将以下内容添加到我的模型中
That worked fine. Now when I add the following to my model
set_primary_keys :user_id, :group_id
我明白了
undefined method `set_primary_keys' for #<Class:0x1043bfe20>
此外，按照此处所述在迁移中使用多个主键无效
Also, using multiple primary keys in a migration as described here has no effect.
有什么想法为什么可能不起作用以及如何使其起作用?
Any ideas why this might not be working and how to make it work?
注意:我不想要发表演讲，为什么我不应该使用组合键-我已经下定决心，只是想让它工作.谢谢！
Note: I do not want a speech on why I should not be using composite keys--I have already made up my mind and just want to get this working. Thanks!
推荐答案
是否已按照require 'composite_primary_keys'添加到environment.rb文件的底部. rel ="noreferrer">在这里?
Did you add require 'composite_primary_keys' to the bottom of your environment.rb file as described here?
这篇关于为什么Rails的Composite_primary_keys gem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！