Rails Devise - 通过URL登录 [英] Rails Devise - Pass URL to login

问题描述

有没有办法让URL传递给Devise登录页面，这样当用户登录时，他/她将被重定向回该网址？

Is there a way for me to pass an URL to the Devise login page, so that when a user logs in, he/she is redirected back to that URL?

如下：

/login?passthru=/somethingawesome

或者更好的设置会话变量？

Or is it better to set a session variable?

推荐答案

这是我做的。

1）在你的模板中设置你的sign_in登录
，如下所示：我将request.fullpath作为一个例子，将其替换为无论你想要什么。

1) In your template set up your sign_in login as follows: Im passing request.fullpath here as an example you can replace this with whatever you want.

<%= link_to "Log in", new_user_session_path(:passthru => request.fullpath %>

2）接下来修改ApplicationController如下：我们添加一个before_filter，如果它在会话中设置passthru存在。然后我们重写after_sign_in_path_for来查看passthru的会话。如果它不在那里将默认为root_path。只要您随时随地使用params处理登录，这应该可以正常工作。虽然可能需要一些调整。

2) Next modify ApplicationController as follows: we add a before_filter which sets passthru in the session if it exists. Then we override after_sign_in_path_for to look in the session for passthru. If its not there it will default to root_path. As long as you handle logins with params consistently everywhere this should work. Although it might need some tweaking.

before_filter :store_location

def store_location
  session[:passthru] = params[:passthru] if params[:passthru]
end

def redirect_back_or_default(default)
  session[:passthru] || root_path
end

def after_sign_in_path_for(resource_or_scope)
  redirect_back_or_default(resource_or_scope)
end

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