一种Omniauth的Facebook的before_filter？ [英] A before_filter for Omniauth Facebook?

问题描述

有关色器件有一个非常容易使用的before_filter在控制器中使用。

For devise there is a very easy to use Before_filter to use in the controllers.

出于某种原因，我不能让这个为Omniauth_facebook宝石工作。我跟着Railscast在Facebook上Omniauth还

For some reason I can't get this to work for the Omniauth_facebook Gem. I followed the Railscast on Facebook Omniauth and also

 before_filter :authenticate

  def authenticate
   redirect_to :login unless User.find_by_provider_and_uid(auth["provider"], auth["uid"])
 end
 end

但我得到一个错误：

but I get an error:

   NameError in PostsController#new

    undefined local variable or method `auth' for #<PostsController:0x007f9fbfa7ee58>

有什么想法？

推荐答案

我觉得你是以后在auth变量是request.env [omniauth.auth]

I think the auth variable you're after is request.env["omniauth.auth"]

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