Ruby on rails Rails“管理显示路由错误”；没有路由匹配{:controller=>；“home"；}”；
我按照说明安装了Rails_Admin，并且正在使用Desive。当我尝试导航到“/admin”时，出现以下错误：Ruby on rails Rails“管理显示路由错误”；没有路由匹配{:controller=>；“home"；}”；,ruby-on-rails,ruby,rails-admin,Ruby On Rails,Ruby,Rails Admin,我按照说明安装了Rails_Admin，并且正在使用Desive。当我尝试导航到“/admin”时，出现以下错误： Routing Error No route matches {:controller=>"home"} 这是我的路线。rb： Ot::Application.routes.draw do resources :badgeships resources :badges resources :profiles resources :universities
Routing Error
No route matches {:controller=>"home"}
Ot::Application.routes.draw do
resources :badgeships
resources :badges
resources :profiles
resources :universities
resources :degrees
resources :jobs
resources :resources
resources :communities
resources :networks
resources :topics do
resources :posts
end
get 'topics/tag/:tag', to: 'topics#index', as: :topic_tag
get 'resources/tag/:tag', to: 'resources#index', as: :resource_tag
root :to => 'home#index'
devise_for :users, path_names: {sign_in: "login", sign_out: "logout"}
mount RailsAdmin::Engine => '/admin', :as => 'rails_admin'
end
RailsAdmin.config do |config|
config.main_app_name = ["Cool app", "BackOffice"]
# or somethig more dynamic
config.main_app_name = Proc.new { |controller| [ "Cool app", "BackOffice - #{controller.params[:action].try(:titleize)}" ] }
end
[RailsAdmin] RailsAdmin initialization disabled by default. Pass SKIP_RAILS_ADMIN_INITIALIZER=false if you need it.
badgeships GET /badgeships(.:format) badgeships#index
POST /badgeships(.:format) badgeships#create
new_badgeship GET /badgeships/new(.:format) badgeships#new
edit_badgeship GET /badgeships/:id/edit(.:format) badgeships#edit
badgeship GET /badgeships/:id(.:format) badgeships#show
PUT /badgeships/:id(.:format) badgeships#update
DELETE /badgeships/:id(.:format) badgeships#destroy
badges GET /badges(.:format) badges#index
POST /badges(.:format) badges#create
new_badge GET /badges/new(.:format) badges#new
edit_badge GET /badges/:id/edit(.:format) badges#edit
badge GET /badges/:id(.:format) badges#show
PUT /badges/:id(.:format) badges#update
DELETE /badges/:id(.:format) badges#destroy
profiles GET /profiles(.:format) profiles#index
POST /profiles(.:format) profiles#create
new_profile GET /profiles/new(.:format) profiles#new
edit_profile GET /profiles/:id/edit(.:format) profiles#edit
profile GET /profiles/:id(.:format) profiles#show
PUT /profiles/:id(.:format) profiles#update
DELETE /profiles/:id(.:format) profiles#destroy
universities GET /universities(.:format) universities#index
POST /universities(.:format) universities#create
new_university GET /universities/new(.:format) universities#new
edit_university GET /universities/:id/edit(.:format) universities#edit
university GET /universities/:id(.:format) universities#show
PUT /universities/:id(.:format) universities#update
DELETE /universities/:id(.:format) universities#destroy
degrees GET /degrees(.:format) degrees#index
POST /degrees(.:format) degrees#create
new_degree GET /degrees/new(.:format) degrees#new
edit_degree GET /degrees/:id/edit(.:format) degrees#edit
degree GET /degrees/:id(.:format) degrees#show
PUT /degrees/:id(.:format) degrees#update
DELETE /degrees/:id(.:format) degrees#destroy
jobs GET /jobs(.:format) jobs#index
POST /jobs(.:format) jobs#create
new_job GET /jobs/new(.:format) jobs#new
edit_job GET /jobs/:id/edit(.:format) jobs#edit
job GET /jobs/:id(.:format) jobs#show
PUT /jobs/:id(.:format) jobs#update
DELETE /jobs/:id(.:format) jobs#destroy
resources GET /resources(.:format) resources#index
POST /resources(.:format) resources#create
new_resource GET /resources/new(.:format) resources#new
edit_resource GET /resources/:id/edit(.:format) resources#edit
resource GET /resources/:id(.:format) resources#show
PUT /resources/:id(.:format) resources#update
DELETE /resources/:id(.:format) resources#destroy
communities GET /communities(.:format) communities#index
POST /communities(.:format) communities#create
new_community GET /communities/new(.:format) communities#new
edit_community GET /communities/:id/edit(.:format) communities#edit
community GET /communities/:id(.:format) communities#show
PUT /communities/:id(.:format) communities#update
DELETE /communities/:id(.:format) communities#destroy
networks GET /networks(.:format) networks#index
POST /networks(.:format) networks#create
new_network GET /networks/new(.:format) networks#new
edit_network GET /networks/:id/edit(.:format) networks#edit
network GET /networks/:id(.:format) networks#show
PUT /networks/:id(.:format) networks#update
DELETE /networks/:id(.:format) networks#destroy
topic_posts GET /topics/:topic_id/posts(.:format) posts#index
POST /topics/:topic_id/posts(.:format) posts#create
new_topic_post GET /topics/:topic_id/posts/new(.:format) posts#new
edit_topic_post GET /topics/:topic_id/posts/:id/edit(.:format) posts#edit
topic_post GET /topics/:topic_id/posts/:id(.:format) posts#show
PUT /topics/:topic_id/posts/:id(.:format) posts#update
DELETE /topics/:topic_id/posts/:id(.:format) posts#destroy
topics GET /topics(.:format) topics#index
POST /topics(.:format) topics#create
new_topic GET /topics/new(.:format) topics#new
edit_topic GET /topics/:id/edit(.:format) topics#edit
topic GET /topics/:id(.:format) topics#show
PUT /topics/:id(.:format) topics#update
DELETE /topics/:id(.:format) topics#destroy
topic_tag GET /topics/tag/:tag(.:format) topics#index
resource_tag GET /resources/tag/:tag(.:format) resources#index
root / home#index
new_user_session GET /users/login(.:format) devise/sessions#new
user_session POST /users/login(.:format) devise/sessions#create
destroy_user_session DELETE /users/logout(.:format) devise/sessions#destroy
user_omniauth_authorize /users/auth/:provider(.:format) devise/omniauth_callbacks#passthru {:provider=>/facebook/}
user_omniauth_callback /users/auth/:action/callback(.:format) devise/omniauth_callbacks#(?-mix:facebook)
user_password POST /users/password(.:format) devise/passwords#create
new_user_password GET /users/password/new(.:format) devise/passwords#new
edit_user_password GET /users/password/edit(.:format) devise/passwords#edit
PUT /users/password(.:format) devise/passwords#update
cancel_user_registration GET /users/cancel(.:format) devise/registrations#cancel
user_registration POST /users(.:format) devise/registrations#create
new_user_registration GET /users/sign_up(.:format) devise/registrations#new
edit_user_registration GET /users/edit(.:format) devise/registrations#edit
PUT /users(.:format) devise/registrations#update
DELETE /users(.:format) devise/registrations#destroy
rails_admin /admin RailsAdmin::Engine
Routes for RailsAdmin::Engine:
dashboard GET / rails_admin/main#dashboard
index GET|POST /:model_name(.:format) rails_admin/main#index
new GET|POST /:model_name/new(.:format) rails_admin/main#new
export GET|POST /:model_name/export(.:format) rails_admin/main#export
bulk_delete POST|DELETE /:model_name/bulk_delete(.:format) rails_admin/main#bulk_delete
history_index GET /:model_name/history(.:format) rails_admin/main#history_index
bulk_action POST /:model_name/bulk_action(.:format) rails_admin/main#bulk_action
show GET /:model_name/:id(.:format) rails_admin/main#show
edit GET|PUT /:model_name/:id/edit(.:format) rails_admin/main#edit
delete GET|DELETE /:model_name/:id/delete(.:format) rails_admin/main#delete
history_show GET /:model_name/:id/history(.:format) rails_admin/main#history_show
show_in_app GET /:model_name/:id/show_in_app(.:format) rails_admin/main#show_in_app
rails g rails_admin:install
SECURITY WARNING: No secret option provided to Rack::Session::Cookie.
This poses a security threat. It is strongly recommended that you
provide a secret to prevent exploits that may be possible from crafted
cookies. This will not be supported in future versions of Rack, and
future versions will even invalidate your existing user cookies.
Called from: /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/actionpack-3.2.9/lib/action_dispatch/middleware/session/abstract_store.rb:28:in `initialize'.
- Hello, RailsAdmin installer will help you set things up!
- I need to work with Devise, let's look at a few things first:
- Checking for a current installation of devise...
- Found it!
- Looks like you've already installed it, good!
? Where do you want to mount rails_admin? Press <enter> for [admin] > manage
gsub config/routes.rb
route mount RailsAdmin::Engine => '/manage', :as => 'rails_admin'
- And you already set it up, good! We just need to know about your user model name...
- We found 'user' (should be one of 'user', 'admin', etc.)
? Correct Devise model name if needed. Press <enter> for [user] > User
- Now setting up devise with user model name 'User':
generate devise
SECURITY WARNING: No secret option provided to Rack::Session::Cookie.
This poses a security threat. It is strongly recommended that you
provide a secret to prevent exploits that may be possible from crafted
cookies. This will not be supported in future versions of Rack, and
future versions will even invalidate your existing user cookies.
Called from: /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/actionpack-3.2.9/lib/action_dispatch/middleware/session/abstract_store.rb:28:in `initialize'.
invoke active_record
create db/migrate/20130214195616_add_devise_to_users.rb
insert app/models/user.rb
route devise_for :users
- Now you'll need an initializer...
- You already have a config file. You're updating, heh? I'm generating a new 'rails_admin.rb.example' that you can review.
create config/initializers/rails_admin.rb.example
/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/activerecord-3.2.9/lib/active_record/reflection.rb:385:in `block in source_reflection': undefined method `klass' for nil:NilClass (NoMethodError)
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/activerecord-3.2.9/lib/active_record/reflection.rb:385:in `collect'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/activerecord-3.2.9/lib/active_record/reflection.rb:385:in `source_reflection'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/activerecord-3.2.9/lib/active_record/reflection.rb:375:in `rescue in foreign_key'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/activerecord-3.2.9/lib/active_record/reflection.rb:373:in `foreign_key'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/rails_admin/adapters/active_record.rb:292:in `association_foreign_key_lookup'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/rails_admin/adapters/active_record.rb:72:in `block in associations'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/rails_admin/adapters/active_record.rb:65:in `map'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/rails_admin/adapters/active_record.rb:65:in `associations'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/rails_admin/config/fields/factories/association.rb:6:in `block in <top (required)>'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/rails_admin/config/fields.rb:54:in `call'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/rails_admin/config/fields.rb:54:in `block (2 levels) in factory'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/rails_admin/config/fields.rb:54:in `each'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/rails_admin/config/fields.rb:54:in `find'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/rails_admin/config/fields.rb:54:in `block in factory'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/rails_admin/config/fields.rb:50:in `each'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/rails_admin/config/fields.rb:50:in `factory'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/rails_admin/config/has_fields.rb:130:in `_fields'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/rails_admin/config/has_fields.rb:128:in `_fields'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/rails_admin/config/has_fields.rb:108:in `all_fields'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/rails_admin/config/has_fields.rb:83:in `fields'
from (erb):64:in `block in template'
from (erb):53:in `map'
from (erb):53:in `template'
from /Users/iyerushalmi/.rvm/rubies/ruby-1.9.3-p374/lib/ruby/1.9.1/erb.rb:838:in `eval'
from /Users/iyerushalmi/.rvm/rubies/ruby-1.9.3-p374/lib/ruby/1.9.1/erb.rb:838:in `result'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/actions/file_manipulation.rb:117:in `block in template'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/actions/create_file.rb:54:in `call'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/actions/create_file.rb:54:in `render'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/actions/create_file.rb:63:in `block (2 levels) in invoke!'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/actions/create_file.rb:63:in `open'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/actions/create_file.rb:63:in `block in invoke!'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/actions/empty_directory.rb:133:in `call'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/actions/empty_directory.rb:133:in `invoke_with_conflict_check'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/actions/create_file.rb:61:in `invoke!'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/actions.rb:95:in `action'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/actions/create_file.rb:26:in `create_file'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/actions/file_manipulation.rb:116:in `template'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails_admin-0.4.4/lib/generators/rails_admin/install_generator.rb:66:in `install'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/task.rb:27:in `run'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/invocation.rb:120:in `invoke_task'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/invocation.rb:126:in `block in invoke_all'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/invocation.rb:126:in `each'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/invocation.rb:126:in `map'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/invocation.rb:126:in `invoke_all'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/group.rb:238:in `dispatch'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/thor-0.17.0/lib/thor/base.rb:434:in `start'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/railties-3.2.9/lib/rails/generators.rb:171:in `invoke'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/railties-3.2.9/lib/rails/commands/generate.rb:12:in `<top (required)>'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/activesupport-3.2.9/lib/active_support/dependencies.rb:251:in `require'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/activesupport-3.2.9/lib/active_support/dependencies.rb:251:in `block in require'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/activesupport-3.2.9/lib/active_support/dependencies.rb:236:in `load_dependency'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/activesupport-3.2.9/lib/active_support/dependencies.rb:251:in `require'
from /Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/railties-3.2.9/lib/rails/commands.rb:29:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
rails g rails\u管理员：安装
安全警告：没有为Rack:：Session:：Cookie提供机密选项。
这构成了安全威胁。强烈建议您
提供一个秘密，以防止可能的漏洞利用
饼干。未来版本的机架不支持此功能，并且
将来的版本甚至会使您现有的用户cookie失效。
调用自：/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/actionpack-3.2.9/lib/action\u dispatch/middleware/session/abstract\u store.rb:28:在“初始化”中。
-您好，RailsAdmin安装程序将帮助您进行设置！
-我需要与Desive合作，让我们先看几件事：
-正在检查设备的当前安装。。。
-找到了！
-看起来你已经安装好了，很好！
? 您想在哪里安装rails\u admin？按[admin]>manage
gsub config/routes.rb
路由装载RailsAdmin:：Engine=>'/manage'，：as=>'rails\u admin'
-你已经设置好了，很好！我们只需要知道你的用户名。。。
-我们发现“user”（应该是“user”、“admin”等中的一个）
? 如果需要，请更正设计型号名称。按[user]>user
-现在正在使用用户模型名“user”设置设备：
产生设计
安全警告：没有为Rack:：Session:：Cookie提供机密选项。
这构成了安全威胁。强烈建议您
提供一个秘密，以防止可能的漏洞利用
饼干。未来版本的机架不支持此功能，并且
将来的版本甚至会使您现有的用户cookie失效。
调用自：/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/actionpack-3.2.9/lib/action\u dispatch/middleware/session/abstract\u store.rb:28:在“初始化”中。
调用活动记录
创建db/migrate/20130214195616_添加_设计_到_users.rb
插入app/models/user.rb
路线设计单位：用户
-现在你需要一个初始值设定项。。。
-您已经有一个配置文件。你在更新吗？我正在生成一个新的“rails_admin.rb.example”，您可以查看它。
创建config/initializers/rails_admin.rb.example
/Users/iyershami/.rvm/gems/ruby-1.9.3-p374/gems/activerecord-3.2.9/lib/active\u record/reflection.rb:385:in`block in source\u reflection':nil的未定义方法“klass”：nil:NilClass（NoMethodError）
来自/Users/iyershami/.rvm/gems/ruby-1.9.3-p374/gems/activerecord-3.2.9/lib/active_record/reflection.rb:385:in“collect”
from/Users/iyershami/.rvm/gems/ruby-1.9.3-p374/gems/activerecord-3.2.9/lib/active\u record/reflection.rb:385:in“source\u reflection”
来自/Users/iyershami/.rvm/gems/ruby-1.9.3-p374/gems/activerecord-3.2.9/lib/active\u record/reflection.rb:375:“外键救援”中
from/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/activerecord-3.2.9/lib/active\u record/reflection.rb:373:in“外键”
from/Users/iyershami/.rvm/gems/ruby-1.9.3-p374/gems/rails\u admin-0.4.4/lib/rails\u admin/adapters/active\u record.rb:292:在“关联\u外键\u查找”中
from/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails\u admin-0.4.4/lib/rails\u admin/adapters/active\u record.rb:72:在“关联中的块”中
from/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails\u admin-0.4.4/lib/rails\u admin/adapters/active\u record.rb:65:in'map'
from/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails\u admin-0.4.4/lib/rails\u admin/adapters/active\u record.rb:65:在“关联”中
from/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails\u admin-0.4.4/lib/rails\u admin/config/fields/factories/association.rb:6:in'block in'
from/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails\u admin-0.4.4/lib/rails\u admin/config/fields.rb:54:in'call'
from/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails\u admin-0.4.4/lib/rails\u admin/config/fields.rb:54:in“工厂中的块（2级）”中
from/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails\u admin-0.4.4/lib/rails\u admin/config/fields.rb:54:in'each'
from/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails\u admin-0.4.4/lib/rails\u admin/config/fields.rb:54:in“find”
from/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails\u admin-0.4.4/lib/rails\u admin/config/fields.rb:54:“工厂中的块”中
from/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails\u admin-0.4.4/lib/rails\u admin/config/fields.rb:50:in'each'
from/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails\u admin-0.4.4/lib/rails\u admin/config/fields.rb:50:在“工厂”中
来自/Users/iyershami/.rvm/gems/ruby-1.9.3-p374/gems/rails\u admin-0.4.4/lib/rails\u admin/config/has\u fields.rb:130:in`\u fields'
来自/Users/iyershami/.rvm/gems/ruby-1.9.3-p374/gems/rails\u admin-0.4.4/lib/rails\u admin/config/has\u fields.rb:128:in`\u fields'
from/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails\u admin-0.4.4/lib/rails\u admin/config/has\u fields.rb:108:“所有字段”中
from/Users/iyerushalmi/.rvm/gems/ruby-1.9.3-p374/gems/rails\u admin-0.4.4/lib/rails\u admin/config/has\u fields.rb:83:在“fields”中
from（erb）：64:in'block in template'
from（erb）：53:in“map”
from（erb）：53:in“template”
from/Users/iyerushalmi/.rvm/rubies/ruby-1.9.3-p374/lib/ruby/1.9.1/erb.rb:838:in'eval'
from/Users/iyerushalmi/.rvm/rubies/ruby-1.9.3-p374/lib/ruby/1.9.1/erb.rb:838:in“result”
F
mount RailsAdmin::Engine => '/admin', :as => 'rails_admin'
rescue_from CanCan::AccessDenied do |e|
redirect_to root_path, alert: e.message
end
rescue_from CanCan::AccessDenied do |e|
redirect_to '/', alert: e.message
end
class ApplicationController < ActionController::Base
rescue_from CanCan::AccessDenied do |exception|
redirect_to main_app.root_path, :alert => exception.message
end
end