Papertrail 轨道通过关联创建但不删除

Question

我有一个 table 行业，并且正在跟踪它的竞争对手，这些竞争对手也是行业。这是通过具有 industry_id 和 competitor_id 的映射 table industry_competitors 实现的。我希望 papertrail 跟踪行业竞争对手的关联和分离。

class Industry < ApplicationRecord
  has_many :industry_competitors, dependent: :destroy
  has_many :competitors, through: :industry_competitors
end


class IndustryCompetitor < ApplicationRecord
  has_paper_trail
  belongs_to :industry
  belongs_to :competitor, class_name: "Industry"
end

我的控制器代码就是这样。

  competitors = ::Industry.where(id: params[:competitor_ids])
  @industry.competitors = competitors
  @industry.save

每次通过整个参赛者名单。如果我试图从行业中分离一些竞争对手（通过不将 ID 传递给控制器），则会触发 'Delete' 查询。

  DELETE FROM `industry_competitors` WHERE `industry_competitors`.`industry_id` = 4559 AND `industry_competitors`.`competitor_id` = 4564

我怀疑是因为 activerecord 调用了 'delete' 而不是 'destroy' 没有触发此 papertrail 回调，因此没有跟踪更改。如果有一种方法可以显式调用 delete（代码更改最少）。或者papertrail有没有办法跟踪删除？

Answer 1

添加这个补丁可以让它工作。

module HasManyThroughAssociationPatch
  def delete_records(records, method)
    method ||= :destroy
    super
  end
end

ActiveRecord::Associations::HasManyThroughAssociation.prepend(HasManyThroughAssociationPatch)

致谢：https://github.com/westonganger/paper_trail-association_tracking

Papertrail 轨道通过关联创建但不删除

Papertrail tracks create but not delete through association

activerecord

paper-trail-gem

rails-activerecord