相关疑难解决方法(0)

有没有人用Sinatra 安装Devise gem？

Devise基于Warden,因此它应该适用于Sinatra,我找不到任何有关如何实现它的相关信息.

我试图使用Rails应用程序的设计来授予对Rack中间件中的Sinatra应用程序的访问权限.

我的config/routes.rb有:

authenticate "admin" do
  mount Admins::Dashboard, :at => "/admins"                                                                                                        
end

在我的Sinatra应用程序中,我使用:

before do
  env["warden"].authenticate!(:scope => "admin")                                                                                                 
end

get "/dashboard" do
  erb :dashboard
end

现在,我得到以下stacktrace的错误:

Started GET "/admins/dashboard" for 127.0.0.1 at 2012-10-11 08:45:13 +0200

NoMethodError (undefined method `failure_app' for nil:NilClass):
  devise (2.1.2) lib/devise/delegator.rb:11:in `failure_app'
  devise (2.1.2) lib/devise/delegator.rb:5:in `call'
  warden (1.2.1) lib/warden/manager.rb:130:in `call_failure_app'
  warden (1.2.1) lib/warden/manager.rb:116:in `process_unauthenticated'
  warden (1.2.1) lib/warden/manager.rb:47:in `call'
  actionpack (3.2.8) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
  rack (1.4.1) lib/rack/etag.rb:23:in `call'
  rack (1.4.1) lib/rack/conditionalget.rb:25:in `call'