创建 paper_trail 新版本而不更新现有记录

Question

I've integrated paper_trail with a Project Model.

Normal Flow:-

Whenever project Record in model gets updated, a new version with changes gets created in Versions table.

Requirement:-

Whenever any project gets updated, rather than updating project record itself in projects model, i want to create a new Version Record. is there any way to do it?

I'm using Rails 5.1.6.2, paper_trail (10.3.0)

Answer 1

I'd try using PaperTrail::Events::Update , though it's not public API (it may change at any time without warning)

project.name = 'new name'
update = PaperTrail::Events::Update.new(project, ....)
PaperTrail::Version.create!(update.data)

Again, this is not public API, so you will void your warranty:)

Whenever any project gets updated, ..

I'd put this in my ProjectController#update action only. You could use a model callback like before_save if you really have to, and throw:abort to halt the callback chain, but you'll have to work around the implicit transaction.

• https://github.com/paper-trail-gem/paper_trail/blob/master/lib/paper_trail/events/update.rb

Answer 2

We also have this flow in our app where a user can edit a record, but the edits have to be approved or rejected before going live. So we use PaperTrail as intended, but then immediately rollback the changes and created a workflow for the approval/rejection that reinstates them or not.