我刚刚安装了 ActiveAdmin 来管理我的用户
rails generate active_admin:install --skip-users
rails generate active_admin:resource User
为了使用我与 Devise 一起使用的现有用户模型。
我在初始化程序 active_admin.rb 中的配置是：
ActiveAdmin.setup do |config|
config.authentication_method = :authenticate_admin_user!
config.current_user_method = :current_user
config.logout_link_path = :destroy_user_session_path
config.logout_link_method = :delete
config.allow_comments = false
config.batch_actions = true
end
身份验证方法在我的 application_controller.rb 中：
def authenticate_admin_user!
redirect_to new_user_session_path unless current_user.try(:is_admin?)
end
在 routes.rb 我有：
devise_for :users
ActiveAdmin.routes(self)
我可以访问索引，但是当我想编辑用户或创建新用户时它会中断。这是bstacktrace：
Started GET "/admin/users/new" for 127.0.0.1 at 2013-04-26 14:45:38 +0800
Processing by Admin::UsersController#new as HTML
User Load (0.7ms) SELECT "users".* FROM "users" WHERE "users"."id" = 20 LIMIT 1
User Load (1.1ms) SELECT "users".* FROM "users"
Rendered /home/flashgordon/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.6.0/app/views/active_admin/resource/new.html.arb (426.2ms)
Completed 500 Internal Server Error in 440ms
ActionView::Template::Error (undefined method `user_id' for #<User:0x007ff5f522fdb0>):
1: insert_tag renderer_for(:new)
activemodel (3.2.13) lib/active_model/attribute_methods.rb:407:in `method_missing'
activerecord (3.2.13) lib/active_record/attribute_methods.rb:149:in `method_missing'
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actionpack (3.2.13) lib/action_view/helpers/form_helper.rb:1143:in `value'
actionpack (3.2.13) lib/action_view/helpers/form_options_helper.rb:580:in `to_select_tag'
actionpack (3.2.13) lib/action_view/helpers/form_options_helper.rb:157:in `select'
actionpack (3.2.13) lib/action_view/helpers/form_options_helper.rb:642:in `select'
/home/flashgordon/.rvm/gems/ruby-1.9.2-p290/gems/formtastic-2.2.1/lib/formtastic/inputs/select_input.rb:154:in `select_html'
/home/flashgordon/.rvm/gems/ruby-1.9.2-p290/gems/formtastic-2.2.1/lib/formtastic/inputs/select_input.rb:149:in `block in to_html'
actionpack (3.2.13) lib/action_view/helpers/capture_helper.rb:40:in `block in capture'
actionpack (3.2.13) lib/action_view/helpers/capture_helper.rb:187:in `with_output_buffer'
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/home/flashgordon/.rvm/gems/ruby-1.9.2-p290/gems/formtastic-2.2.1/lib/formtastic/inputs/select_input.rb:146:in `to_html'
formtastic (2.2.1) lib/formtastic/helpers/input_helper.rb:240:in `input'
activeadmin (0.6.0) lib/active_admin/form_builder.rb:19:in `block in input'
activeadmin (0.6.0) lib/active_admin/form_builder.rb:166:in `with_new_form_buffer'
activeadmin (0.6.0) lib/active_admin/form_builder.rb:19:in `input'
formtastic (2.2.1) lib/formtastic/helpers/inputs_helper.rb:329:in `block in fieldset_contents_from_column_list'
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activeadmin (0.6.0) lib/active_admin/views/pages/form.rb:43:in `block in default_form_config'
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/home/flashgordon/.rvm/gems/ruby-1.9.2-p290/gems/formtastic-2.2.1/lib/formtastic/helpers/form_helper.rb:160:in `semantic_form_for'
activeadmin (0.6.0) lib/active_admin/view_helpers/form_helper.rb:8:in `active_admin_form_for'
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activeadmin (0.6.0) lib/active_admin/views/pages/base.rb:78:in `block (2 levels) in build_main_content_wrapper'
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arbre (1.0.1) lib/arbre/context.rb:92:in `with_current_arbre_element'
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arbre (1.0.1) lib/arbre/element/builder_methods.rb:31:in `block in build_tag'
arbre (1.0.1) lib/arbre/context.rb:92:in `with_current_arbre_element'
arbre (1.0.1) lib/arbre/element/builder_methods.rb:49:in `with_current_arbre_element'
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arbre (1.0.1) lib/arbre/element/builder_methods.rb:49:in `with_current_arbre_element'
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/home/flashgordon/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.6.0/app/views/active_admin/resource/new.html.arb:1:in `block in __home_flashgordon__rvm_gems_ruby_______p____gems_activeadmin_______app_views_active_admin_resource_new_html_arb__4493823286655400845_61452940'
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/home/flashgordon/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.6.0/app/views/active_admin/resource/new.html.arb:1:in `new'
/home/flashgordon/.rvm/gems/ruby-1.9.2-p290/gems/activeadmin-0.6.0/app/views/active_admin/resource/new.html.arb:1:in `__home_flashgordon__rvm_gems_ruby_______p____gems_activeadmin_______app_views_active_admin_resource_new_html_arb__4493823286655400845_61452940'
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puma (1.6.3) lib/puma/thread_pool.rb:94:in `block in spawn_thread'
Rendered /home/flashgordon/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/actionpack-3.2.13/lib/action_dispatch/middleware/templates/rescues/_trace.erb (2.9ms)
Rendered /home/flashgordon/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/actionpack-3.2.13/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (1.7ms)
Rendered /home/flashgordon/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/gems/actionpack-3.2.13/lib/action_dispatch/middleware/templates/rescues/template_error.erb within rescues/layout (20.2ms)
任何帮助都是极好的 ：）
提前致谢