使用自定義設計控制器進行管理

Question

我第一次使用Devise並使用Devise，並且剛剛生成了一些設計控制器以便自定義它們，現在Administrate將引發錯誤。

對於每一個我所產生的控制器，它拋出這個錯誤：

NameError - uninitialized constant AdminUsers::Session: 

堆棧跟蹤：

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' 

路線：

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 

有誰知道解決辦法是什麼爲了這？

Answer 1

我在管理和設計上面臨Rails 5.0.1的類似問題。
事實證明，這是一個known issue從administrate@0.3.0開始，關於命名空間處理。

如果你不想等待新版本與修復，這裏是爲避免這個問題的解決方法：

很簡單。您只需使用除了以"admin"開頭的字符串以外的其他名稱空間。例如。你可以像下面這樣改變它，問題就會消失。

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

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

P.S.如果您想要使用AdminUser模型進行身份驗證管理，則需要將namespace :admin do ... end部分換成authenticate :admin_user do ... end。