NoMethodError-升级Rails 4.2后，Paper Trail问题的未定义方法"timestamp_sort_order" [英] NoMethodError - undefined method `timestamp_sort_order' for Paper trail issue after upgrading Rails 4.2

问题描述

当我将Rails 3.2迁移到Rails 4.2时，我使用paper_trail来跟踪跨国变更，出现了以下问题:

I used paper_trail to tracking transnational changes when I migrated rails 3.2 to rails 4.2, have got below issue:

NoMethodError-的未定义方法"timestamp_sort_order"

NoMethodError - undefined method `timestamp_sort_order' for

推荐答案

我通过在初始化器paper_trail.rb文件中的下面添加行来解决了这个问题

I fixed this by adding below line in intializer paper_trail.rb file

PaperTrail::Rails::Engine.eager_load!

请参阅我的最终intializers/paper_trail.rb文件

See my final intializers/paper_trail.rb file

PaperTrail.config.track_associations = false

PaperTrail::Rails::Engine.eager_load!

module PaperTrail

  class Version < ActiveRecord::Base
    .....
  end

end

问题已解决....

已将我的答案添加到第5.2行以下，并与rails 5.2一起使用

Have updated my answer added below line extra using it with rails 5.2

PaperTrail.config.track_associations = false

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