Rails 4-ActiveAdmin布局为空,但应用程序布局适用于自定义控制器操作

我有一个Rails4应用程序 active_admin 仅供管理员使用。我已经使用它很长时间了,并且已经按照我想要的方式对它进行了定制,它一直都在工作,但现在,我无法解决这个奇怪的小问题。

我的观察结果--- 我的布局有 active_admin.html.erb 和 application.html.erb 。当我重命名active\u admin时。html。erb或将其删除。。自定义操作可以正常工作并呈现,但其他页面会显示包含两个页眉、正文和页脚的双重内容呈现,但当我保持管理布局时,所有内容都正常工作,但自定义操作呈现空白布局。

我的控制器块中有一个自定义操作 admin/hall.rb 模型,它也将根据服务器日志执行,服务器日志也包括active\u admin布局,但在屏幕上, 我看不到任何布局,它只是空白的,但当我在控制器块中显式使用应用程序布局时,它会工作。

ActiveAdmin.register Hall do

controller do


  ##explicitly add helper to be used by existing partials 
  helper ApplicationHelper 
  ###DO NOT WORK
  #layout 'active_admin' # <-- here
  ##THE WEIRD PART################
  layout 'application' , :except => [:activities] ===> this render the application layout perfectly which i dont want , as i need the active_admin layout
  layout 'active_admin' , :except => [:activities]  ==> also render the application layout...STRANGE
  layout 'active_admin' , :only => [:activities]  ==> render the application layout but with only icon and entire page is blank


  def activities
    @hall = MODEL.find params[:id]
    @activities = @hall.get_public_activity
    ##EVERYTHING BELOW THIS DO NOT WORK, I HAVE TRIED IT
    #render :activities, :layout => false
    #render :partial=>'admin/halls/activities', :layout => "active_admin"
    ##render "activities", layout: "active_admin"

  end 




       #######server logs
    Processing by Admin::HallsController#activities as HTML
    ...
    ...
    ....

       (1.7ms)  SELECT COUNT(*) FROM "activities" WHERE "activities"."trackable_id" = $1 AND ("activities"."owner_id" IS NOT NULL)  [["trackable_id", 1021]]
      PublicActivity::Activity Load (1.5ms)  SELECT  "activities".* FROM "activities" WHERE "activities"."trackable_id" = $1 AND ("activities"."owner_id" IS NOT NULL)  ORDER BY created_at desc LIMIT 50 OFFSET 0  [["trackable_id", 1021]]
      User Load (1.5ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = $1 LIMIT 1  [["id", 3]]
      Announcement Load (1.4ms)  SELECT  "announcements".* FROM "announcements" WHERE "announcements"."id" = $1 LIMIT 1  [["id", 1021]]
      Rendered public_activity/announcement/_create.html.erb (19.4ms)
      Rendered admin/halls/activities.html.erb within layouts/active_admin (27.4ms)
     ...
     ...

    Completed 200 OK in 681ms (Views: 368.8ms | ActiveRecord: 56.4ms | Elasticsearch: 0.0ms)

谁能帮我找出这里出了什么问题吗。

提前谢谢。