ruby-on-rails - 错误 : Too many redirects

Question

我正在使用 devise 并尝试以下操作:

class ApplicationController < ActionController::Base
   protect_from_forgery
   before_filter :is_worker

   def is_worker
     if user_signed_in?
        @email = current_user.email
        if @email && Worker.find_by_email(@email).nil?
          redirect_to '/tasksadmins'
        else
           redirect_to '/workers'
        end
     else
         redirect_to '/users/sign_in'
     end
   end
end

当我尝试进入站点:localhost:3000/tasksadmins 时，我得到:

Oops! It was not possible to show this website

The website at http://localhost:3000/tasksadmins seems to be unavailable. The precise error was:

Too many redirects

It could be temporarily switched off or moved to a new address. Don't forget to check that your internet connection is working correctly.

请问我该如何解决？

Answer 1

before_filter 应用于每个请求。这就是它一次又一次重定向的原因。

您可能只想过滤特定的操作:

before_filter :is_worker, only: :index

另一种解决方案是检查 #is_worker 中是否需要重定向:

redirect_to '/workers' unless request.fullpath == '/workers'

编辑:

另一种方法是跳过重定向目标操作的前置过滤器。示例:

class WorkersController < ApplicationController

  skip_before_filter :is_worker, only: :index

  # …

end