How can i use activeadmin inside mountable rails engine

[nazrulcse]

I want to integrate active admin into my mountable rails engine. my configuration:
gem 'activeadmin'
gem 'devise'

My Engine:

module AuthForum
  class Engine < ::Rails::Engine
    isolate_namespace AuthForum
    initializer :auth_forum do
      ActiveAdmin.application.load_paths += Dir[File.dirname(__FILE__) + '/admin']
      require 'jquery-ui-rails'
    end
  end
end

Engine Routes:

AuthForum::Engine.routes.draw do
  root 'welcome#index'
  resources :posts
  ActiveAdmin.routes(self)
  devise_for :users, module: :devise
  mount Forem::Engine, :at => '/forums'
end

Mount the engine to a application like

mount AuthForum::Engine => '/'

active admin resources located at app/auth_forum//admin directory.

when i try to access admin like http://localhost:3000/admin then it return me error
uninitialized constant AuthForum::Admin

I am stuck here from 7 days. Could you please help me out?

Thank you

[nazrulcse]

Hi @timoschilling
Any update, I am still stuck here. please give me some instruction so that i can continue.
Thank you.

[timoschilling]

I have never used that before by myself, so I need to test it.

[varyonic]

Two gems that do this are CommunityEngine and PageFlow

[risinglf]

@nazrulcse did you solve this problem with a solution?

[fuxinhao-crypto]

@varyonic do you know how to fix this issue?