Paper Trail: create a version on parent whenever associated model changes?

Question

I\'m working on a Rails app where I need to show the audit trail on a Record, which has_many Data. I have paper_trail on my Record, and ass

Answer 1

This works for me.

class Place < ActiveRecord::Base
  has_paper_trail
  before_update :check_update

  def check_update
    return if changed_notably?

    tracking_has_many_associations = [ ... ]
    tracking_has_has_one_associations = [ ... ]

    tracking_has_many_associations.each do |a|
      send(a).each do |r|
        if r.send(:changed_notably?) || r.marked_for_destruction?
          self.touch
          return
        end
      end
    end
    tracking_has_one_associations.each do |a|
      r = send(a)
      if r.send(:changed_notably?) || r.marked_for_destruction?
        self.touch
        return
      end
    end
  end
end