如何使用 Authlogic 和 STI 获得操作级别保护？

Question

鉴于如何使用 before_filter 进行单个用户分类已有详细记录，我在为多个用户类型获取操作级保护时遇到了困难。让我解释一下：

我有这样的东西......

class ApplicationController < ActionController::Base
  class << self 
    attr_accessor :standard_actions
  end
  @standard_actions = [:index, :show, :new, :edit, :create, :update, :destroy]

  def require_guardian
    unless current_user and current_user.is_a?(Guardian)
      store_location
      redirect_to home_url
      return false
    end
  end

  def require_admin
    unless current_user and current_user.is_a?(Administrator)
      store_location
      redirect_to register_url
      return false
    end
  end
end

在 GuardiansController 中，我只想允许管理员执行标准操作，但所有其他操作都应该需要监护人。所以我尝试了这个...

class GuardiansController < ApplicationController
  before_filter :require_admin, :only => ApplicationController::standard_actions
  before_filter :require_guardian, :except => ApplicationController::standard_actions
  ...
end

最终进行了递归重定向。一定有更好的办法吗？

Answer 1

好吧，这又是一个不仔细看而漏掉一些东西的情况。我无意中设置了以递归方式重定向用户的路线。当您正确设置路线时，上述解决方案就可以正常工作：

def require_guardian
  unless current_user and current_user.is_a?(Guardian)
    store_location
    # this route (home_url) sent the user to another controller which ran a before_filter sending them back here again.
    # redirect_to home_url 
    # So I changed it to a neutral route and it works great!
    redirect_to register_url
    return false
  end
end