如何从文件追踪的版本中编辑信息?

对于欧盟的gdpr合规性(用户隐私),我们需要从我们的记录版本中修订个人识别信息。我已经想出了一些似乎有效的方法,但我想我应该问问是否有一种既定的方法可以做到这一点。

class User < ActiveRecord::Base
  has_paper_trail
end

user = User.create! name: 'Josh'
user.update_attributes name: 'Josh2'
user.update_attributes name: 'Josh3'
user.destroy!

def self.get_data
  PaperTrail::Version.order(:id).where(item_id: 1).map { |ver| [ver.event, ver.object, ver.object_changes] }
end

# =====  BEFORE  =====
get_data
# => [["create", nil, {"id"=>[nil, 1], "name"=>[nil, "Josh"]}],
#     ["update", {"id"=>1, "name"=>"Josh"}, {"name"=>["Josh", "Josh2"]}],
#     ["update", {"id"=>1, "name"=>"Josh2"}, {"name"=>["Josh2", "Josh3"]}],
#     ["destroy", {"id"=>1, "name"=>"Josh3"}, nil]]

PaperTrail::Version.where_object_changes(name: 'Josh').each do |ver|
  ver.object['name'] = 'REDACTED' if ver.object && ver.object['name'] == 'Josh'
  if oc = ver.object_changes
    oc['name'] = oc['name'].map { |name| name == 'Josh' ? 'REDACTED' : name }
    ver.object_changes = oc
  end
  ver.save!
end

# =====  AFTER  =====
get_data
# => [["create", nil, {"id"=>[nil, 1], "name"=>[nil, "REDACTED"]}],
#     ["update",
#      {"id"=>1, "name"=>"REDACTED"},
#      {"name"=>["REDACTED", "Josh2"]}],
#     ["update", {"id"=>1, "name"=>"Josh2"}, {"name"=>["Josh2", "Josh3"]}],
#     ["destroy", {"id"=>1, "name"=>"Josh3"}, nil]]

更新: 实际上,我还需要通过关联来确定记录的范围,所以我的示例还不够。