将paper_trail与主键不是“ id”的类一起使用

Question

I've used paper_trail for a couple of models in my rails 3 app but I've hit a snag when trying to apply it to a join model - its primary key is not id.

I checked the doc and the source but couldn't see any options to override the use of id. Any suggestions?

Answer 1

The simplest fix is just to add a method, id, that references the primary key. Once paper_trail has that it's happy.