为什么Rails的Composite_primary_keys gem不起作用? [英] Why isn't the composite_primary_keys gem for Rails working?

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?

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