Ruby on rails Rails 3-筛选器链暂停为：呈现或重定向身份验证

我仍然收到标题中的“错误”信息，不知道如何解决它。 在应用程序控制器中

class ApplicationController < ActionController::Base
   protect_from_forgery
   before_filter :mailer_set_url_options
   helper_method :current_user_session, :current_user

   def mailer_set_url_options
     ActionMailer::Base.default_url_options[:host] = request.host_with_port
   end

   private
      def current_user_session
        logger.debug "ApplicationController::current_user_session"
        return @current_user_session if defined?(@current_user_session)
        @current_user_session = UserSession.find
      end

      def current_user
        logger.debug "ApplicationController::current_user"
        return @current_user if defined?(@current_user)
        @current_user = current_user_session && current_user_session.user
      end

      def authentication
        logger.debug "ApplicationController::authentication"
        unless current_user
          store_location
          flash[:warning] = "You must be logged out to access this page"
          redirect_to root_url
          return false
        end
      end

      def store_location
        session[:return_to] = request.url
      end
end

以及用户控制器

class UsersController < ApplicationController
  before_filter :authentication, only: [:index, :edit, :update, :destroy, :action_a, :action_b]
  #skip_before_filter :authentication, :only => [:account_activity] didn't help as well

  def account_activity
    unless current_user.nil?
      puts 'A'
      if params[:user_id] && params[:status]
        puts 'B'
        User.find(params[:user_id]).update_attributes(:active => params[:status])
        flash[:notice] = 'Activity was successfully changed.'
      end
    end
    redirect_to :back
  end
...

---

我如何解决这个问题？我曾尝试在谷歌上搜索，但不幸的是，我仍然不知道如何修复它。

我只是在一个用户身上发现了这个错误

事实证明，用户有一个字段（我们最近添加了长度验证）包含的文本比允许的文本多。由于验证是新的，而且用户已经在那里了，所以错误不断地出现

我在尝试使用“！”更新其属性以明确错误时发现了它

> User.last.update_attributes!(:email => "someone@domain.com") 

用户加载（0.3ms）从

users

ORDER BY

users

id

描述限制1（0.1ms）开始用户存在（0.2ms）选择1作为一个 来自

用户

其中（

用户

电子邮件

='someone@domain.com"及

用户

id！=2020）限制1（0.1ms）回滚 ActiveRecord:：RecordInvalid:验证失败：摘要太长 （最多650个字符）

---

因此，更改字段“Summary”的内容就解决了这个问题。

当您从过滤器之前的某个位置重定向时，过滤器链将停止。如果一切正常，您可以忽略此消息

，您需要显示更多有关发生了什么的信息，例如请求来自何处和/或错误日志。我猜“redirect_to:back”将发送到您的应用程序，以执行位于控制器顶部的before_筛选器列表中的一个操作，用于：身份验证。@rossta我将从日志更新OP添加的输出。是的，我将应用程序重定向到操作，该操作位于

before\u filter

列表中-到操作

edit

。但是到动作

编辑

时，应用程序也从动作

更新

重定向到了动作

编辑

——这很有效。此外，如果我删除重定向，然后手动设置我的应用程序的

主页url

，那么我会得到相同的错误…+1表示“！”-技巧。我对此一无所知，这导致我解决了这个问题。

Started GET "/users/account_activity?user_id=31&status=0" for 127.0.0.1 at 2012-09-28 00:40:10 +0200
Processing by UsersController#account_activity as HTML
  Parameters: {"user_id"=>"31", "status"=>"0"}
ApplicationController::current_user
ApplicationController::current_user_session
  User Load (0.7ms)  SELECT "users".* FROM "users" WHERE "users"."persistence_token" = '...' LIMIT 1
   (0.1ms)  BEGIN
   (0.7ms)  UPDATE "users" SET "last_request_at" = '2012-09-27 22:40:10.258152', "perishable_token" = '...', "updated_at" = '2012-09-27 22:40:10.259093' WHERE "users"."id" = 31
   (0.7ms)  COMMIT
ApplicationController::current_user_session
  User Load (0.4ms)  SELECT "users".* FROM "users" WHERE "users"."id" = $1 LIMIT 1  [["id", "31"]]
   (0.1ms)  BEGIN
  User Exists (0.6ms)  SELECT 1 FROM "users" WHERE ("users"."email" = 'abc@def.com' AND "users"."id" != 31) LIMIT 1
   (0.5ms)  UPDATE "users" SET "active" = 0, "perishable_token" = '...', "updated_at" = '2012-09-27 22:40:10.267227' WHERE "users"."id" = 31
   (0.7ms)  COMMIT
Redirected to http://localhost:3000/users/31/edit
Completed 302 Found in 19ms (ActiveRecord: 4.5ms)


Started GET "/users/31/edit" for 127.0.0.1 at 2012-09-28 00:40:10 +0200
Processing by UsersController#edit as HTML
  Parameters: {"id"=>"31"}
ApplicationController::authentication
ApplicationController::current_user
ApplicationController::current_user_session
  User Load (0.7ms)  SELECT "users".* FROM "users" WHERE "users"."persistence_token" = '...' LIMIT 1
  User Load (0.6ms)  SELECT "users".* FROM "users" WHERE "users"."id" = 31 LIMIT 1
Redirected to http://localhost:3000/
Filter chain halted as :authentication rendered or redirected
Completed 302 Found in 5ms (ActiveRecord: 1.3ms)

> User.last.update_attributes!(:email => "someone@domain.com")