active admin gem (ошибка имени)

Question

У меня есть классы.

пользователь:

class User < ActiveRecord::Base 
    attr_accessible :email, :name 
    has_many :berichten 
end 

Категория:

class Category < ActiveRecord::Base 
    attr_accessible :name 
    has_many :berichten 
end 

Berichten:

class Berichten < ActiveRecord::Base 
    attr_accessible :bericht, :user 
    belongs_to :user 
    belongs_to :category 
end 

Я сделал первый: рельсы генерировать active_admin: природопользователей И я вижу этот выход: создать приложение /admin/users.rb

Тогда я сделал: генерировать active_admin болеет: категория ресурсов И я вижу этот вывод:

home/roelof/tamara/tamara_site/app/admin/users.rb:1:in `<top (required)>': uninitialized constant Users (NameError) 
    from /home/roelof/.gem/ruby/1.9.1/gems/activeadmin-0.5.0/lib/active_admin/application.rb:182:in `block in load!' 
    from /home/roelof/.gem/ruby/1.9.1/gems/activeadmin-0.5.0/lib/active_admin/application.rb:182:in `each' 
    from /home/roelof/.gem/ruby/1.9.1/gems/activeadmin-0.5.0/lib/active_admin/application.rb:182:in `load!' 
    from /home/roelof/.gem/ruby/1.9.1/gems/activeadmin-0.5.0/lib/active_admin/application.rb:205:in `routes' 
    from /home/roelof/.gem/ruby/1.9.1/gems/activeadmin-0.5.0/lib/active_admin.rb:79:in `routes' 
    from /home/roelof/tamara/tamara_site/config/routes.rb:2:in `block in <top (required)>' 
    from /home/roelof/.gem/ruby/1.9.1/gems/actionpack-3.2.8/lib/action_dispatch/routing/route_set.rb:282:in `instance_exec' 
    from /home/roelof/.gem/ruby/1.9.1/gems/actionpack-3.2.8/lib/action_dispatch/routing/route_set.rb:282:in `eval_block' 
    from /home/roelof/.gem/ruby/1.9.1/gems/actionpack-3.2.8/lib/action_dispatch/routing/route_set.rb:260:in `draw' 
    from /home/roelof/tamara/tamara_site/config/routes.rb:1:in `<top (required)>' 
    from /home/roelof/.gem/ruby/1.9.1/gems/railties-3.2.8/lib/rails/application/routes_reloader.rb:40:in `block in load_paths' 
    from /home/roelof/.gem/ruby/1.9.1/gems/railties-3.2.8/lib/rails/application/routes_reloader.rb:40:in `each' 
    from /home/roelof/.gem/ruby/1.9.1/gems/railties-3.2.8/lib/rails/application/routes_reloader.rb:40:in `load_paths' 
    from /home/roelof/.gem/ruby/1.9.1/gems/railties-3.2.8/lib/rails/application/routes_reloader.rb:16:in `reload!' 
    from /home/roelof/.gem/ruby/1.9.1/gems/railties-3.2.8/lib/rails/application.rb:108:in `reload_routes!' 
    from /home/roelof/.gem/ruby/1.9.1/gems/activeadmin-0.5.0/lib/active_admin/reloader.rb:34:in `reload!' 
    from /home/roelof/.gem/ruby/1.9.1/gems/activeadmin-0.5.0/lib/active_admin/reloader.rb:61:in `block in attach!' 
    from /home/roelof/.gem/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/callbacks.rb:429:in `_run__3584427286517482665__prepare__2286595675940506716__callbacks' 
    from /home/roelof/.gem/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/callbacks.rb:405:in `__run_callback' 
    from /home/roelof/.gem/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/callbacks.rb:385:in `_run_prepare_callbacks' 
    from /home/roelof/.gem/ruby/1.9.1/gems/activesupport-3.2.8/lib/active_support/callbacks.rb:81:in `run_callbacks' 
    from /home/roelof/.gem/ruby/1.9.1/gems/actionpack-3.2.8/lib/action_dispatch/middleware/reloader.rb:74:in `prepare!' 
    from /home/roelof/.gem/ruby/1.9.1/gems/actionpack-3.2.8/lib/action_dispatch/middleware/reloader.rb:48:in `prepare!' 
    from /home/roelof/.gem/ruby/1.9.1/gems/railties-3.2.8/lib/rails/application/finisher.rb:47:in `block in <module:Finisher>' 
    from /home/roelof/.gem/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:30:in `instance_exec' 
    from /home/roelof/.gem/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:30:in `run' 
    from /home/roelof/.gem/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:55:in `block in run_initializers' 
    from /home/roelof/.gem/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:54:in `each' 
    from /home/roelof/.gem/ruby/1.9.1/gems/railties-3.2.8/lib/rails/initializable.rb:54:in `run_initializers' 
    from /home/roelof/.gem/ruby/1.9.1/gems/railties-3.2.8/lib/rails/application.rb:136:in `initialize!' 
    from /home/roelof/.gem/ruby/1.9.1/gems/railties-3.2.8/lib/rails/railtie/configurable.rb:30:in `method_missing' 
    from /home/roelof/tamara/tamara_site/config/environment.rb:5:in `<top (required)>' 
    from /home/roelof/.gem/ruby/1.9.1/gems/railties-3.2.8/lib/rails/application.rb:103:in `require_environment!' 
    from /home/roelof/.gem/ruby/1.9.1/gems/railties-3.2.8/lib/rails/commands.rb:25:in `<top (required)>' 
    from script/rails:6:in `require' 
    from script/rails:6:in `<main>' 

Как решить это?

Roelof

Answer 1

Вы должны сделать rails generate active_admin:resource user вместо rails generate active_admin:resource users (пользователь против пользователей).

Как вы это сделали, active_admin ищет класс Users, который, конечно, не существует.

Итак, удалите app/admin/users.rb и выполните команду выше.