当会话被销毁时我的应用程序可以收到通知吗？如果是这样，怎么办？

发布于 2024-11-25 21:13:16 字数 509 浏览 1 评论 0原文

我的基于 Devise/Warden 的应用程序将模型 ID 存储在 session[] 变量中。我想在 session[] 被销毁时销毁该对象。

当会话被销毁时，是否有回调或某种机制来通知我的应用程序？
该机制是否可靠，或者我应该运行夜间清理脚本来清理任何孤立的对象？

为了清楚起见，这里是我的控制器代码的片段：

class WizardsController < ApplicationController
  before_filter :find_or_create_wizard
  ...
private

  def find_or_create_wizard
    @wizard = Wizard.find_by_id(session[:wizard_id]) || Wizard.create.tap {|w| session[:wizard_id] = w }
  end

end

重申一下问题：我应该如何以及何时销毁向导对象？

原文

My Devise/Warden-based app stores a model ID in the session[] variable. I want destroy the object when the session[] is destroyed.

Is there a callback or some mechanism to notify my app when the session is destroyed?
Is the mechanism dependable, or should I run a nightly cleanup script to vacuum up any orphaned objects?

To make it clear, here's a snippet of my controller code:

class WizardsController < ApplicationController
  before_filter :find_or_create_wizard
  ...
private

  def find_or_create_wizard
    @wizard = Wizard.find_by_id(session[:wizard_id]) || Wizard.create.tap {|w| session[:wizard_id] = w }
  end

end

To restate the question: how and when should I destroy the Wizard object?

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十二 2024-12-02 21:13:16

Warden::Manager.before_logout do |user,auth,opts| 
  # callback 
end

使用 Warden::Hooks https://github.com/hassox /warden/blob/master/lib/warden/hooks.rb 在注销或身份验证后执行操作。

Warden::Manager.before_logout do |user,auth,opts| 
  # callback 
end

Use the Warden::Hooks https://github.com/hassox/warden/blob/master/lib/warden/hooks.rb to do things after sign out or authentication.

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春花秋月 2024-12-02 21:13:16

会话是指用户退出时吗？

尝试猴子修补 application_controller.rb 中的 sign_out 方法
您可以在 lib/devise/controllers/helpers.rb 中找到相关的 Gem 代码。

def sign_out(resource_or_scope=nil)
    Wizard.find_by_id(session[:wizard_id]) || Wizard.create.tap {|w| session[:wizard_id] = w }
    super(resource_or_scope)
end

每当用户通过名为 expire_session_data_after_sign_in! 的函数登录或注册时，会话数据也会被清除。，也可以覆盖它：

def expire_session_data_after_sign_in!
        Wizard.find_by_id(session[:wizard_id]) || Wizard.create.tap {|w| session[:wizard_id] = w }
        super
end

By session, do you mean when the user logs out?

Try monkey patching the sign_out method in your application_controller.rb
You can find the relevant Gem code in lib/devise/controllers/helpers.rb

def sign_out(resource_or_scope=nil)
    Wizard.find_by_id(session[:wizard_id]) || Wizard.create.tap {|w| session[:wizard_id] = w }
    super(resource_or_scope)
end

Session data is also cleared whenever a user signs in or signs up via a function called expire_session_data_after_sign_in!, could override that too:

def expire_session_data_after_sign_in!
        Wizard.find_by_id(session[:wizard_id]) || Wizard.create.tap {|w| session[:wizard_id] = w }
        super
end

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