ruby-on-rails – 活动管理员：如何在嵌套模型的json列上添加sor

我的模型结构如下：

# User Model
class User < ActiveRecord::Base
  has_one :level
end

# Level Model
class Level < ActiveRecord::Base
  belongs_to :user     
end

# Level Migration
create_table "levels",force: :cascade do |t|
  t.integer  "user_id"
  t.jsonb    "ranked_scores"
end

：ranking_score json结构是：

# level.ranked_scores
{"stage_1"=>111,"stage_2"=>222,"stage_3"=>333}

我试图使用Level的：ranking_scores属性对用户进行排序,如下所示：

# app/admin/user.rb

ActiveAdmin.register User do
  controller do
    def scoped_collection
      end_of_association_chain.includes(:level)
    end
  end

  index do
    column "Stage 1 Score",sortable: "level.ranked_scores -> 'stage_1'" do |user|
      user.level.ranked_scores['stage_1']
    end
  end
end

ActiveAdmin.register Level do
  belongs_to :user
end

生成的用于对列进行排序的URL是

HTTP：//本地主机：3000 /管理员为了= levels.ranked_scores [ ‘stage_1’] _desc

但是stage_1的列没有按降序排序.

对于这里出了什么问题的任何想法？