的应用程序/控制器/ api_controller.rb

Question

我正在尝试将active admin与rails_api应用合并。

详细信息：

因为它是一个API，没有任何Cookie和内容，我使用devise_auth_token进行身份验证（而不是devise）。

身份验证工作正常。但是，我现在正尝试将active admin与此相结合，并按照以下步骤进行操作：

gem 'activeadmin', '1.0.0.pre2'
$ bundle install
$ rails g active_admin:install 
$ rake db:migrate db:seed
$rails server

在转到http://localhost:3000/admin时，它突然出现以下错误：

ArgumentError in Admin::DashboardController#index
wrong number of arguments (given 1, expected 0)

指向一行：define_method(name) do in：

 if instance_reader
    remove_possible_method name
    define_method(name) do
      if instance_variable_defined?(ivar)
        instance_variable_get ivar
      else

但请注意，直接转到http://localhost:3000/admin/login会打开登录页面，但在登录后，它会重定向回http://localhost:3000/admin并显示相同的错误消息。

的Gemfile：

gem 'pg'
gem 'devise'
gem 'devise_token_auth'
gem 'omniauth'
gem 'money-rails'
gem 'swagger-docs'
gem 'activeadmin', '1.0.0.pre2'gem 'pg'
gem 'devise'
gem 'devise_token_auth'
gem 'omniauth'
gem 'money-rails'
gem 'swagger-docs'
gem 'activeadmin', '1.0.0.pre2'

routes.rb中：

Rails.application.routes.draw do
  devise_for :admin_users, ActiveAdmin::Devise.config
  ActiveAdmin.routes(self)
  namespace :api do
    namespace :v1 do
      mount_devise_token_auth_for 'User', at: 'auth'
      ...
    end
  end
  root to: "home#index"
end

依赖关系：

Ruby：2.3.0
Rails：4.2.4
Active Admin：1.0.0.pre2
Rails API：0.4.0
设计：3.5.6
设计令牌身份验证：0.1.37

堆栈跟踪：

ArgumentError (wrong number of arguments (given 1, expected 0)):
  activesupport (4.2.4) lib/active_support/core_ext/class/attribute.rb:106:in `block (2 levels) in class_attribute'
  devise_token_auth (0.1.37) app/controllers/devise_token_auth/concerns/set_user_by_token.rb:21:in `set_user_by_token'
  devise_token_auth (0.1.37) lib/devise_token_auth/controllers/helpers.rb:117:in `current_admin_user'
  devise_token_auth (0.1.37) lib/devise_token_auth/controllers/helpers.rb:105:in `authenticate_admin_user!'
  activeadmin (1.0.0.pre2) lib/active_admin/base_controller.rb:39:in `authenticate_active_admin_user'
  activesupport (4.2.4) lib/active_support/callbacks.rb:432:in `block in make_lambda'
  activesupport (4.2.4) lib/active_support/callbacks.rb:164:in `block in halting'
  activesupport (4.2.4) lib/active_support/callbacks.rb:504:in `block in call'
  activesupport (4.2.4) lib/active_support/callbacks.rb:504:in `each'
  activesupport (4.2.4) lib/active_support/callbacks.rb:504:in `call'
  activesupport (4.2.4) lib/active_support/callbacks.rb:92:in `__run_callbacks__'
  activesupport (4.2.4) lib/active_support/callbacks.rb:778:in `_run_process_action_callbacks'
  activesupport (4.2.4) lib/active_support/callbacks.rb:81:in `run_callbacks'
  actionpack (4.2.4) lib/abstract_controller/callbacks.rb:19:in `process_action'
  actionpack (4.2.4) lib/action_controller/metal/rescue.rb:29:in `process_action'
  actionpack (4.2.4) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
  activesupport (4.2.4) lib/active_support/notifications.rb:164:in `block in instrument'
  activesupport (4.2.4) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  activesupport (4.2.4) lib/active_support/notifications.rb:164:in `instrument'
  actionpack (4.2.4) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
  actionpack (4.2.4) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
  activerecord (4.2.4) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
  actionpack (4.2.4) lib/abstract_controller/base.rb:137:in `process'
  actionview (4.2.4) lib/action_view/rendering.rb:30:in `process'
  actionpack (4.2.4) lib/action_controller/metal.rb:196:in `dispatch'
  actionpack (4.2.4) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
  actionpack (4.2.4) lib/action_controller/metal.rb:237:in `block in action'
  actionpack (4.2.4) lib/action_dispatch/routing/route_set.rb:76:in `dispatch'
  actionpack (4.2.4) lib/action_dispatch/routing/route_set.rb:45:in `serve'
  actionpack (4.2.4) lib/action_dispatch/journey/router.rb:43:in `block in serve'
  actionpack (4.2.4) lib/action_dispatch/journey/router.rb:30:in `each'
  actionpack (4.2.4) lib/action_dispatch/journey/router.rb:30:in `serve'
  actionpack (4.2.4) lib/action_dispatch/routing/route_set.rb:821:in `call'
  actionpack (4.2.4) lib/action_dispatch/middleware/flash.rb:260: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 `catch'
  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 (4.2.4) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
  activerecord (4.2.4) lib/active_record/query_cache.rb:36:in `call'
  activerecord (4.2.4) lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in `call'
  activerecord (4.2.4) lib/active_record/migration.rb:377:in `call'
  actionpack (4.2.4) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
  activesupport (4.2.4) lib/active_support/callbacks.rb:88:in `__run_callbacks__'
  activesupport (4.2.4) lib/active_support/callbacks.rb:778:in `_run_call_callbacks'
  activesupport (4.2.4) lib/active_support/callbacks.rb:81:in `run_callbacks'
  actionpack (4.2.4) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
  actionpack (4.2.4) lib/action_dispatch/middleware/reloader.rb:73:in `call'
  actionpack (4.2.4) lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
  actionpack (4.2.4) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
  actionpack (4.2.4) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
  railties (4.2.4) lib/rails/rack/logger.rb:38:in `call_app'
  railties (4.2.4) lib/rails/rack/logger.rb:20:in `block in call'
  activesupport (4.2.4) lib/active_support/tagged_logging.rb:68:in `block in tagged'
  activesupport (4.2.4) lib/active_support/tagged_logging.rb:26:in `tagged'
  activesupport (4.2.4) lib/active_support/tagged_logging.rb:68:in `tagged'
  railties (4.2.4) lib/rails/rack/logger.rb:20:in `call'
  actionpack (4.2.4) lib/action_dispatch/middleware/request_id.rb:21:in `call'
  rack (1.6.4) lib/rack/runtime.rb:18:in `call'
  activesupport (4.2.4) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
  rack (1.6.4) lib/rack/lock.rb:17:in `call'
  actionpack (4.2.4) lib/action_dispatch/middleware/static.rb:116:in `call'
  railties (4.2.4) lib/rails/engine.rb:518:in `call'
  railties (4.2.4) 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/Sunday/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/webrick/httpserver.rb:140:in `service'
  /Users/Sunday/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/webrick/httpserver.rb:96:in `run'
  /Users/Sunday/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/webrick/server.rb:296:in `block in start_thread'

我怀疑它可能与rails_api默认情况下不包含多个rails中间件的事实有关......但实际上，我不知道它是什么，或者我怎么能去做。请任何人，我需要帮助。

我的组合甚至可以工作吗？

Answer 1

将devise_auth_token与active_admin

一起使用时，这是一个问题

这是devise_token_auth宝石本身给出的解决方法。

出于某种奇怪的原因，ActiveAdmin从您自己的应用程序的ApplicationController扩展而来。如果您在应用程序的ApplicationController中包含DeviseTokenAuth :: Concerns :: SetUserByToken问题，则会出现问题。

解决方案是使用两个单独的ApplicationController类 - 一个用于API，另一个用于ActiveAdmin。这样的事情：

的应用程序/控制器/ api_controller.rb

API路由从此控制器扩展

class ApiController < ActionController::Base
  include DeviseTokenAuth::Concerns::SetUserByToken
end

的应用程序/控制器/ application_controller.rb

将此保留给ActiveAdmin和任何其他非api路由

class ApplicationController < ActionController::Base
end

This is the reference

Answer 2

这绝对不是一个非常好的组合。

Rails API是Rails的缩小版本，适用于没有普通Web界面的应用程序 - 它更快，因为它会删除经典Web应用程序（如会话）所需的组件。

这些组件称为中间件。

http://guides.rubyonrails.org/rails_on_rack.html

ActiveAdmin是一个快速简便的Web界面，用于在模型上进行CRUD。这样人类就可以通过点击按钮而不是使用API来编辑数据。

您可能想要做的是拥有两个独立的rails应用程序 - 一个通过API提供数据的应用程序和一个允许人们使用ActiveAdmin的Web应用程序。当您需要一个Web应用程序但不希望它降低您的API负担时，这是一个相当常见的解决方案。

每个人都会住在自己的GIT存储库中，并由不同的服务器提供服务。您可以通过将模型提取到gem（s）中来共享模型等组件。

activeadmin with rails API app errors：Admin :: DashboardController中的ArgumentError #index

2 个答案:

的应用程序/控制器/ api_controller.rb

API路由从此控制器扩展

的应用程序/控制器/ application_controller.rb

将此保留给ActiveAdmin和任何其他非api路由