Administrate with custom devise controllers

Question

I'm using Administrate for the first time with Devise and have just generated some devise controllers in order to customize them and now Administrate throws an error.

For each of the controllers i generated, it throws this error:

NameError - uninitialized constant AdminUsers::Session:

Stack trace:

    NameError - uninitialized constant AdminUsers::Session:
  activesupport (4.2.6) lib/active_support/dependencies.rb:533:in `load_missing_constant'
  activesupport (4.2.6) lib/active_support/dependencies.rb:184:in `const_missing'
  activesupport (4.2.6) lib/active_support/inflector/methods.rb:263:in `block in constantize'
  activesupport (4.2.6) lib/active_support/inflector/methods.rb:259:in `constantize'
  activesupport (4.2.6) lib/active_support/core_ext/string/inflections.rb:66:in `constantize'
  administrate (0.2.2) app/helpers/administrate/application_helper.rb:12:in `display_resource_name'
  app/views/admin/application/_sidebar.html.erb:14:in `block in _app_views_admin_application__sidebar_html_erb___259992220382990803_70276796335240'
  app/views/admin/application/_sidebar.html.erb:11:in `_app_views_admin_application__sidebar_html_erb___259992220382990803_70276796335240'
  actionview (4.2.6) lib/action_view/template.rb:145:in `block in render'
  activesupport (4.2.6) lib/active_support/notifications.rb:166:in `instrument'
  actionview (4.2.6) lib/action_view/template.rb:333:in `instrument'
  actionview (4.2.6) lib/action_view/template.rb:143:in `render'
  actionview (4.2.6) lib/action_view/renderer/partial_renderer.rb:339:in `render_partial'
  actionview (4.2.6) lib/action_view/renderer/partial_renderer.rb:310:in `block in render'
  actionview (4.2.6) lib/action_view/renderer/abstract_renderer.rb:39:in `block in instrument'
  activesupport (4.2.6) lib/active_support/notifications.rb:164:in `block in instrument'
  activesupport (4.2.6) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  activesupport (4.2.6) lib/active_support/notifications.rb:164:in `instrument'
  actionview (4.2.6) lib/action_view/renderer/abstract_renderer.rb:39:in `instrument'
  actionview (4.2.6) lib/action_view/renderer/partial_renderer.rb:309:in `render'
  actionview (4.2.6) lib/action_view/renderer/renderer.rb:51:in `render_partial'
  actionview (4.2.6) lib/action_view/helpers/rendering_helper.rb:35:in `render'
  haml (4.0.7) lib/haml/helpers/action_view_mods.rb:12:in `render_with_haml'
  app/views/layouts/admin/application.html.erb:31:in `_app_views_layouts_admin_application_html_erb__4415338589856147193_70276819419860'
  actionview (4.2.6) lib/action_view/template.rb:145:in `block in render'
  activesupport (4.2.6) lib/active_support/notifications.rb:166:in `instrument'
  actionview (4.2.6) lib/action_view/template.rb:333:in `instrument'
  actionview (4.2.6) lib/action_view/template.rb:143:in `render'
  actionview (4.2.6) lib/action_view/renderer/template_renderer.rb:66:in `render_with_layout'
  actionview (4.2.6) lib/action_view/renderer/template_renderer.rb:52:in `render_template'
  actionview (4.2.6) lib/action_view/renderer/template_renderer.rb:14:in `render'
  actionview (4.2.6) lib/action_view/renderer/renderer.rb:46:in `render_template'
  actionview (4.2.6) lib/action_view/renderer/renderer.rb:27:in `render'
  actionview (4.2.6) lib/action_view/rendering.rb:100:in `_render_template'
  actionpack (4.2.6) lib/action_controller/metal/streaming.rb:217:in `_render_template'
  actionview (4.2.6) lib/action_view/rendering.rb:83:in `render_to_body'
  actionpack (4.2.6) lib/action_controller/metal/rendering.rb:32:in `render_to_body'
  actionpack (4.2.6) lib/action_controller/metal/renderers.rb:37:in `render_to_body'
  actionpack (4.2.6) lib/abstract_controller/rendering.rb:25:in `render'
  actionpack (4.2.6) lib/action_controller/metal/rendering.rb:16:in `render'
  actionpack (4.2.6) lib/action_controller/metal/instrumentation.rb:44:in `block (2 levels) in render'
  activesupport (4.2.6) lib/active_support/core_ext/benchmark.rb:12:in `block in ms'
  /Users/jamesrobinson/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/benchmark.rb:308:in `realtime'
  activesupport (4.2.6) lib/active_support/core_ext/benchmark.rb:12:in `ms'
  actionpack (4.2.6) lib/action_controller/metal/instrumentation.rb:44:in `block in render'
  actionpack (4.2.6) lib/action_controller/metal/instrumentation.rb:87:in `cleanup_view_runtime'
  searchkick (1.3.4) lib/searchkick/logging.rb:158:in `cleanup_view_runtime'
  activerecord (4.2.6) lib/active_record/railties/controller_runtime.rb:25:in `cleanup_view_runtime'
  actionpack (4.2.6) lib/action_controller/metal/instrumentation.rb:43:in `render'
  administrate (0.2.2) app/controllers/administrate/application_controller.rb:12:in `index'
  actionpack (4.2.6) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
  actionpack (4.2.6) lib/abstract_controller/base.rb:198:in `process_action'
  actionpack (4.2.6) lib/action_controller/metal/rendering.rb:10:in `process_action'
  actionpack (4.2.6) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
  activesupport (4.2.6) lib/active_support/callbacks.rb:117:in `call'
  activesupport (4.2.6) lib/active_support/callbacks.rb:555:in `block (2 levels) in compile'
  activesupport (4.2.6) lib/active_support/callbacks.rb:505:in `call'
  activesupport (4.2.6) lib/active_support/callbacks.rb:92:in `__run_callbacks__'
  activesupport (4.2.6) lib/active_support/callbacks.rb:778:in `_run_process_action_callbacks'
  activesupport (4.2.6) lib/active_support/callbacks.rb:81:in `run_callbacks'
  actionpack (4.2.6) lib/abstract_controller/callbacks.rb:19:in `process_action'
  actionpack (4.2.6) lib/action_controller/metal/rescue.rb:29:in `process_action'
  actionpack (4.2.6) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
  activesupport (4.2.6) lib/active_support/notifications.rb:164:in `block in instrument'
  activesupport (4.2.6) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  activesupport (4.2.6) lib/active_support/notifications.rb:164:in `instrument'
  actionpack (4.2.6) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
  actionpack (4.2.6) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
  searchkick (1.3.4) lib/searchkick/logging.rb:153:in `process_action'
  activerecord (4.2.6) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
  actionpack (4.2.6) lib/abstract_controller/base.rb:137:in `process'
  actionview (4.2.6) lib/action_view/rendering.rb:30:in `process'
  actionpack (4.2.6) lib/action_controller/metal.rb:196:in `dispatch'
  actionpack (4.2.6) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
  actionpack (4.2.6) lib/action_controller/metal.rb:237:in `block in action'
  actionpack (4.2.6) lib/action_dispatch/routing/route_set.rb:74:in `dispatch'
  actionpack (4.2.6) lib/action_dispatch/routing/route_set.rb:43:in `serve'
  actionpack (4.2.6) lib/action_dispatch/journey/router.rb:43:in `block in serve'
  actionpack (4.2.6) lib/action_dispatch/journey/router.rb:30:in `serve'
  actionpack (4.2.6) lib/action_dispatch/routing/route_set.rb:817:in `call'
  warden (1.2.6) lib/warden/manager.rb:35:in `block in call'
  warden (1.2.6) lib/warden/manager.rb:34:in `call'
  rack (1.6.4) lib/rack/etag.rb:24:in `call'
  rack (1.6.4) lib/rack/conditionalget.rb:25:in `call'
  rack (1.6.4) lib/rack/head.rb:13:in `call'
  actionpack (4.2.6) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
  actionpack (4.2.6) lib/action_dispatch/middleware/flash.rb:260:in `call'
  rack (1.6.4) lib/rack/session/abstract/id.rb:225:in `context'
  rack (1.6.4) lib/rack/session/abstract/id.rb:220:in `call'
  actionpack (4.2.6) lib/action_dispatch/middleware/cookies.rb:560:in `call'
  activerecord (4.2.6) lib/active_record/query_cache.rb:36:in `call'
  activerecord (4.2.6) lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in `call'
  activerecord (4.2.6) lib/active_record/migration.rb:377:in `call'
  actionpack (4.2.6) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
  activesupport (4.2.6) lib/active_support/callbacks.rb:88:in `__run_callbacks__'
  activesupport (4.2.6) lib/active_support/callbacks.rb:778:in `_run_call_callbacks'
  activesupport (4.2.6) lib/active_support/callbacks.rb:81:in `run_callbacks'
  actionpack (4.2.6) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
  actionpack (4.2.6) lib/action_dispatch/middleware/reloader.rb:73:in `call'
  actionpack (4.2.6) lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
  better_errors (2.1.1) lib/better_errors/middleware.rb:84:in `protected_app_call'
  better_errors (2.1.1) lib/better_errors/middleware.rb:79:in `better_errors_call'
  better_errors (2.1.1) lib/better_errors/middleware.rb:57:in `call'
  actionpack (4.2.6) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
  web-console (2.3.0) lib/web_console/middleware.rb:28:in `block in call'
  web-console (2.3.0) lib/web_console/middleware.rb:18:in `call'
  actionpack (4.2.6) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
  railties (4.2.6) lib/rails/rack/logger.rb:38:in `call_app'
  railties (4.2.6) lib/rails/rack/logger.rb:20:in `block in call'
  activesupport (4.2.6) lib/active_support/tagged_logging.rb:68:in `block in tagged'
  activesupport (4.2.6) lib/active_support/tagged_logging.rb:26:in `tagged'
  activesupport (4.2.6) lib/active_support/tagged_logging.rb:68:in `tagged'
  railties (4.2.6) lib/rails/rack/logger.rb:20:in `call'
  actionpack (4.2.6) lib/action_dispatch/middleware/request_id.rb:21:in `call'
  rack (1.6.4) lib/rack/methodoverride.rb:22:in `call'
  rack (1.6.4) lib/rack/runtime.rb:18:in `call'
  activesupport (4.2.6) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
  rack (1.6.4) lib/rack/lock.rb:17:in `call'
  actionpack (4.2.6) lib/action_dispatch/middleware/static.rb:120:in `call'
  rack (1.6.4) lib/rack/sendfile.rb:113:in `call'
  railties (4.2.6) lib/rails/engine.rb:518:in `call'
  railties (4.2.6) lib/rails/application.rb:165:in `call'
  rack (1.6.4) lib/rack/lock.rb:17:in `call'
  rack (1.6.4) lib/rack/content_length.rb:15:in `call'
  rack (1.6.4) lib/rack/handler/webrick.rb:88:in `service'
  /Users/jamesrobinson/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/webrick/httpserver.rb:140:in `service'
  /Users/jamesrobinson/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/webrick/httpserver.rb:96:in `run'
  /Users/jamesrobinson/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/webrick/server.rb:296:in `block in start_thread'

routes:

Rails.application.routes.draw do

devise_for :admin_users, controllers: {
    sessions: 'admin_users/sessions',
    confirmations: 'admin_users/confirmations',
    registrations: 'admin_users/registrations',
    passwords: 'admin_users/passwords',
    unlocks: 'admin_users/unlocks',
  }

  namespace :admin do
    resources :admin_users
    resources :users
    resources :bookings
    resources :locations
    resources :tournaments
    resources :players
    resources :images
    root to: "tournaments#index"
  end

end

Does anyone know what the solution is for this?

Answer 1

I faced a similar issue on Rails 5.0.1 with administrate and devise.
It turns out that this is a known issue as of [email protected] regarding namespace handling.

If you don't want to wait for the new release with fix, here's a workaround for avoiding this issue:

It's simple. All you need to do is just use another namespace other than string that starts with "admin". E.g. you can change it like the following and the issue will be gone.

devise_for :admin_users, controllers: {
  sessions: 'admeen_users/sessions',
  ...
}

class AdmeenUsers::SessionsController < Devise::SessionsController
  ...
end

P.S. If you want to authenticate administrate with AdminUser model, you need to wrap the namespace :admin do ... end part with authenticate :admin_user do ... end.