ruby-on-rails - 在 rails_admin 中获取登录用户关联记录

Question

我已经安装了 rails_admin gem，没有任何错误，它的显示模型也很糟糕，但是我有一个要求，我需要显示 current_user 登录的相关数据

e.g User has many Books so in rails admin i want only that user book but currently it's showing all users books which is default behaviour of rails_admin

我也尝试使用 cancancan gem 来实现同样的事情，但它不起作用我的 rails_admin 初始化配置如下

rails_admin.rb
RailsAdmin.config do |config|
  ### Popular gems integration
  ## == Devise ==
   config.authenticate_with do
    warden.authenticate! scope: :user
   end
   config.current_user_method(&:current_user)
   config.parent_controller = 'ApplicationController'
  ## == Cancan ==
  config.authorize_with :cancan,UserAbility
  ## == Pundit ==
  # config.authorize_with :pundit
  config.included_models = ["Book","User"]
  config.actions do
    dashboard                     # mandatory
    index                         # mandatory
    new
    export
    bulk_delete
    show
    edit
    delete
    show_in_app
  end
end

UserAbility类实现如下

  class UserAbility
  include CanCan::Ability

  def initialize(user)
    # Define abilities for the passed in user here. For example:
       if user.present?
         can :access, :dashboard
         can :manage, :Book,id:user.id
       end
  end
end

Answer 1

代替 can :manage, :Book,id:user.id，尝试使用:

can :read, Book, user_id: user.id

所以这些能力看起来像:

can :access, :rails_admin
can :dashboard
can :read, Book, user_id: user.id