ruby-on-rails - rails_admin 与 rails-api 冲突

Question

我有一个最近开始的项目，我使用 mongoid 作为数据库并使用 rails_admin 来管理它，现在我想要一个 api 并且我选择了 rails-api 来做它，但出于某种原因，因为我刚刚添加了 rails- api 到 gem 文件，我无法访问管理员，我总是收到这个错误

设计中的 NoMethodError::SessionsController#new

nil:NilClass 的未定义方法`[]'

这是痕迹

典狱长 (1.1.1) lib/warden/session_serializer.rb:29:in fetch' warden (1.1.1) lib/warden/proxy.rb:196:in用户'
典狱长 (1.1.1) lib/warden/proxy.rb:293:in _perform_authentication' warden (1.1.1) lib/warden/proxy.rb:90:in认证'
典狱长 (1.1.1) lib/warden/proxy.rb:100:in authenticate?' devise (2.1.0) app/controllers/devise_controller.rb:113:in require_no_authentication'
activesupport (3.2.5) lib/active_support/callbacks.rb:407:in _run__3280997315660744487__process_action__4533000551616940901__callbacks' activesupport (3.2.5) lib/active_support/callbacks.rb:405:in __run_callback'
activesupport (3.2.5) lib/active_support/callbacks.rb:385:in _run_process_action_callbacks' activesupport (3.2.5) lib/active_support/callbacks.rb:81:in run_callbacks'
actionpack (3.2.5) lib/abstract_controller/callbacks.rb:17:in process_action' actionpack (3.2.5) lib/action_controller/metal/rescue.rb:29:in process_action'
actionpack (3.2.5) lib/action_controller/metal/instrumentation.rb:30:in block in process_action' activesupport (3.2.5) lib/active_support/notifications.rb:123:in阻止仪器'
activesupport (3.2.5) lib/active_support/notifications/instrumenter.rb:20:in instrument' activesupport (3.2.5) lib/active_support/notifications.rb:123:in仪器'
actionpack (3.2.5) lib/action_controller/metal/instrumentation.rb:29:in process_action' actionpack (3.2.5) lib/action_controller/metal/params_wrapper.rb:206:in process_action'
actionpack (3.2.5) lib/abstract_controller/base.rb:121:in process' actionpack (3.2.5) lib/abstract_controller/rendering.rb:45:in过程'
actionpack (3.2.5) lib/action_controller/metal.rb:203:in dispatch' actionpack (3.2.5) lib/action_controller/metal/rack_delegation.rb:14:in dispatch '
actionpack (3.2.5) lib/action_controller/metal.rb:246:in block in action' actionpack (3.2.5) lib/action_dispatch/routing/route_set.rb:73:in称呼'
actionpack (3.2.5) lib/action_dispatch/routing/route_set.rb:73:in dispatch' actionpack (3.2.5) lib/action_dispatch/routing/route_set.rb:36:in称呼'
actionpack (3.2.5) lib/action_dispatch/routing/mapper.rb:42:in call' journey (1.0.3) lib/journey/router.rb:68:in阻止通话'
旅程 (1.0.3) lib/journey/router.rb:56:in each' journey (1.0.3) lib/journey/router.rb:56:in称呼'
actionpack (3.2.5) lib/action_dispatch/routing/route_set.rb:600:in call' rack-pjax (0.5.9) lib/rack/pjax.rb:12:in称呼'
mongoid (2.4.10) lib/rack/mongoid/middleware/identity_map.rb:33:in block in call' mongoid (2.4.10) lib/mongoid.rb:133:in unit_of_work'
mongoid (2.4.10) lib/rack/mongoid/middleware/identity_map.rb:33:in call' warden (1.1.1) lib/warden/manager.rb:35:in阻止通话'
典狱长 (1.1.1) lib/warden/manager.rb:34:in catch' warden (1.1.1) lib/warden/manager.rb:34:in称呼'
机架 (1.4.1) lib/rack/etag.rb:23:in call' rack (1.4.1) lib/rack/conditionalget.rb:25:in称呼'
actionpack (3.2.5) lib/action_dispatch/middleware/head.rb:14:in call' remotipart (1.0.2) lib/remotipart/middleware.rb:30:in称呼'
actionpack (3.2.5) lib/action_dispatch/middleware/params_parser.rb:21:in call' actionpack (3.2.5) lib/action_dispatch/middleware/callbacks.rb:28:in阻止通话'
activesupport (3.2.5) lib/active_support/callbacks.rb:405:in _run__2911892753477349565__call__1112249857594481255__callbacks' activesupport (3.2.5) lib/active_support/callbacks.rb:405:in __run_callback'
activesupport (3.2.5) lib/active_support/callbacks.rb:385:in _run_call_callbacks' activesupport (3.2.5) lib/active_support/callbacks.rb:81:in run_callbacks'
actionpack (3.2.5) lib/action_dispatch/middleware/callbacks.rb:27:in call' actionpack (3.2.5) lib/action_dispatch/middleware/reloader.rb:65:in称呼'
actionpack (3.2.5) lib/action_dispatch/middleware/remote_ip.rb:31:in call' actionpack (3.2.5) lib/action_dispatch/middleware/debug_exceptions.rb:16:in称呼'
actionpack (3.2.5) lib/action_dispatch/middleware/show_exceptions.rb:56:in call' railties (3.2.5) lib/rails/rack/logger.rb:26:in call_app'
railties (3.2.5) lib/rails/rack/logger.rb:16:in call' actionpack (3.2.5) lib/action_dispatch/middleware/request_id.rb:22:in称呼'
机架 (1.4.1) lib/rack/runtime.rb:17:in call' activesupport (3.2.5) lib/active_support/cache/strategy/local_cache.rb:72:in称呼'
机架 (1.4.1) lib/rack/lock.rb:15:in call' actionpack (3.2.5) lib/action_dispatch/middleware/static.rb:62:in称呼'
railties (3.2.5) lib/rails/engine.rb:479:in call' railties (3.2.5) lib/rails/application.rb:220:in称呼'
机架 (1.4.1) lib/rack/content_length.rb:14:in call' railties (3.2.5) lib/rails/rack/log_tailer.rb:17:in称呼'
机架 (1.4.1) lib/rack/handler/webrick.rb:59:in `service'

我真的不知道导致这种情况的那些 gem 之间发生了什么，欢迎任何建议或方向；)

Answer 1

我遇到了同样的问题，我发现 Warden 需要两个 API 应用程序中默认没有的中间件:ActionDispatch::Session::CookieStore 和 ActionDispatch::Cookies。

因此，可以通过以下方式添加这些中间件:#config/application.rb
config.middleware.use ActionDispatch::Cookies
config.middleware.use ActionDispatch::Session::CookieStore