3

到目前为止,这是我的代码:

class Video < ActiveRecord::Base
  has_paper_trail meta: { athlete_id: :athlete_id, approved: false },
                  if: Proc.new { |v| v.needs_approval? }
  validate :should_be_saved?

  def should_be_saved?
    errors.add(:base, 'added for approval') if needs_approval?
  end

  def needs_approval
    @needs_approval ||= false
  end

  def needs_approval?
    @needs_approval
  end

end

# ApplicationController
class ApplicationController < ActionController::Base

  def user_for_paper_trail
    return unless user_signed_in?
    original_user.present? ? original_user : current_user
  end

  # Used to determine the contributor
  # When contributor logs in, warden saves the contributor_id in session
  def original_user
    return nil unless remember_contributor_id?
    @original_user ||= User.find(remember_contributor_id)
  end

  def info_for_paper_trail
    { athlete_id: current_user.id } if current_user
  end

end

我目前遇到的问题是当保存 Video 对象时验证失败(因为我也告诉过它),但我需要验证失败,但版本对象继续创建。只是不太确定如何去做。

编辑
这是我的代码(下面的代码仍然使用ApplicationController上面的代码):

class Video < ActiveRecord::Base
  # .. other methods

  include Contributable
  attr_accessible :video_type_id, :athlete_id, :uploader_id, :created_at, :updated_at, :uniform_number, :featured,
                  :name, :panda_id, :date, :thumbnail_url, :mp4_video_url, :from_mobile_device, :duration, :sport_id,
                  :delted_at, :approved
end

module Contributable
  extend ActiveSupport::Concern

  included do
    has_paper_trail meta: { athlete_id: :athlete_id, approved: false },
                    unless: Proc.new { |obj| obj.approved? },
                    skip: [:approved]
  end

  def log_changes_or_update(params, contributor = nil)
    update_attribute(:approved, false) unless contributor.blank?

    if contributor.blank?
      update_attributes params
    else
      self.attributes = params
      self.send(:record_update)
      self.versions.map(&:save)
    end
  end

end

class VideosController < ApplicationController
  def update
    # ... other code
    # original_user is the contributor currently logged in
    @video.log_changes_or_update(params[:video], original_user)
  end
end

我正在开发的应用程序有一点复杂性,它允许具有特定角色的用户编辑他们也有权访问的配置文件。我正在尝试保存每个更改的版本(使用paper_trail)而不影响现有对象。

上面的代码完全按照我想要的方式工作,但是,我只是想知道在我的log_changes_or_update方法中是否不是实现总体目标的正确方法。

4

1 回答 1

2

为什么不直接删除验证并向模型添加具有approved默认值的属性?这样就保存了对象并创建了 paper_trail 。稍后当视频获得批准时,paper_trail 也会注意到这一变化。falseVideoVideoversion

于 2014-01-21T06:00:01.633 回答