手动设置的return_to用色器件 [英] Manually setting return_to with devise

问题描述

。这对大多数工作点很好，但我有一个特定操作的麻烦：

I am currently using Devise to authenticate users on my app. It's working great for the most point, but I am having trouble with a specific action:

查看：

<p id="save"><%= link_to "Save", new_save_path, :remote => true %></p>

saves_controller.rb：

saves_controller.rb:

def new
  if user_signed_in?
    @save = Save.create(:user_id => current_user.id)
    render :update do |page|
      page.replace_html "save", "Saved!"
    end
  else
    redirect_to new_user_session_path, :notice => "You need to sign in to do that."
  end
end

正如你所看到的，因为操作是Ajax的，我不能用传统的的before_filter：的authenticate_user 方法。所以不是我重定向用户在登录页。

As you can see, because the action is an ajax one, I can't use the traditional before_filter :authenticate_user! method. So instead I am redirecting the user to the sign in page.

问题是，我想，当他们登录时自动将用户重定向回previous页。

The problem is, I want to automatically redirect the user back to the previous page when they logged in.

我明白我可以用会做到这一点[：user.return_to] ，但我无法设置它。我怎样才能做到这一点？还是我要对此都错了？

I understand I can do this with the session[:"user.return_to"] but I'm having trouble setting it. How can I do this? Or am I going about this all wrong?

推荐答案

我相信会话密钥是：＃{范围} _return_to ，这将是简单的：user_return_to 为用户类

I believe the session key is :"#{scope}_return_to, which will be simply :user_return_to for a User class.

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