Rails + Sinatra应用共享会话 [英] Rails + Sinatra apps sharing sessions

问题描述

我还没有找到一个很好的答案。如何获得我的Rails应用程序和Sinatra应用程序（安装在我的Rails应用程序的config.ru）成功地共享会话？如果我先访问我的Sinatra应用程序，然后Rails应用程序，我得到一个错误像未定义的方法扫描{}：Hash ，可能是因为Rails使用自定义子类Hash存储会话信息，而Rack :: Session :: Cookie则不会。我的代码到目前为止：

config.ru

  map/do 
运行MyRailsApp :: Application 
 end 
 
 map/ sinatrado 
使用Rack :: Session :: Cookie， 
 key：_app_session，
 secret：< SECRET_KEY> 
 
运行MySinatraApp 
 end 
  

config / initializers /session_store.rb

  MyRailsApp :: Application.config.session_store：cookie_store，key：'_app_session'
  

config / initializers / secret_token.rb

  MyRailsApp :: Application.config.secret_token =< SECRET_KEY> ＃same as config.ru 
  

我错过了什么？

< Rails源中的一个快速 grep 显示扫描是 ActionDispatch :: Flash :: FlashHash 上的一个方法，其中Rails存储在 flash 键下的会话中。

Sinatra-Flash也使用会话的 flash 键，但它存储一个简单的 c>

Rails正在获取对象 session ['flash'] ，它是由Sinatra放在那里的 Hash ，假设它是一个 FlashHash ，并试图调用 sweep ，因此错误消息：未定义的方法扫描{}：Hash 。

一个可能的解决方法是使用Sinatra应用程序中的不同的键，而不是默认值（例如 flash（：my_flash）[：error] =foo / code>）。

如果你想在Rails和Sinatra之间使用flash查看邮件，

I haven't found a good answer to this yet. How can I get my Rails app and Sinatra app (mounted in my Rails app's config.ru) to share a session successfully? If I visit my Sinatra app first, then the Rails app, I get an error like undefined method sweep for {}:Hash, presumably because Rails uses a custom subclass of Hash for storing session info, and Rack::Session::Cookie doesn't. My code so far:

config.ru

map "/" do
  run MyRailsApp::Application
end

map "/sinatra" do
  use Rack::Session::Cookie, 
      key: "_app_session",
      secret: "<SECRET_KEY>"

  run MySinatraApp
end

config/initializers/session_store.rb

MyRailsApp::Application.config.session_store :cookie_store, key: '_app_session'

config/initializers/secret_token.rb

MyRailsApp::Application.config.secret_token = "<SECRET_KEY>" # same as config.ru

Anything I've missed?

解决方案

A quick grep of the Rails source reveals sweep is a method on ActionDispatch::Flash::FlashHash, which Rails stores in the session under the flash key.

Sinatra-Flash also uses the flash key of the session, but it stores a plain Hash object there.

Rails is getting the object at session['flash'], which is the Hash put there by Sinatra, assuming it is a FlashHash and trying to call sweep on it, hence the error message: undefined method sweep for {}:Hash.

A possible work around might be to use a different key in the Sinatra app for the flash rather than the default (e.g. flash(:my_flash)[:error]="foo").

That won't help if you want to use the flash to see messages when going between Rails and Sinatra though.

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