Rails - 突然，redirect_to 总是给出错误的参数数量错误（0 代表 1）答案

【问题标题】：Rails - Suddenly, redirect_to always gives error wrong number of arguments (0 for 1)Rails - 突然，redirect_to 总是给出错误的参数数量错误（0 代表 1）
【发布时间】：2016-04-14 00:21:04
【问题描述】：

突然之间，我的 Rails 应用程序上的所有 redirect_to 调用都返回了这个 wrong number of arguments (0 for 1) 错误。我一辈子都找不到原因。

甚至像这样的简单调用

def show
   redirect_to root_path
end

# routes
root to: "home#index"

...在回溯中没有任何迹象的错误，至少我可以查明。

我已经尝试过了，基于这里回答的其他问题：

更新 turbolinks gem
更新所有宝石
移除 active_admin
删除设备
删除专家
调用路径助手、url助手、绝对路径、相对路径、传递参数、不传递参数
更新动作包
更新 Rails

在所有其他答案中，问题似乎是旧的宝石或拼写错误，但在我的情况下，所有这些都只是停止工作，即使是那些已经好几个月并且未受影响的。

从应用程序的任何位置跟踪始终完全相同：

    Redirected to
    Completed 500 Internal Server Error in 177ms

    ArgumentError - wrong number of arguments (0 for 1):
      actionpack (4.2.0) lib/action_controller/metal/redirecting.rb:76:in `redirect_to'
      actionpack (4.2.0) lib/action_controller/metal/flash.rb:57:in `redirect_to'
      actionpack (4.2.0) lib/action_controller/metal/instrumentation.rb:61:in `block in redirect_to'
      activesupport (4.2.0) lib/active_support/notifications.rb:164:in `block in instrument'
      activesupport (4.2.0) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
      activesupport (4.2.0) lib/active_support/notifications.rb:164:in `instrument'
      actionpack (4.2.0) lib/action_controller/metal/instrumentation.rb:60:in `redirect_to'
      app/controllers/ads_controller.rb:93:in `block (2 levels) in create'
      actionpack (4.2.0) lib/action_controller/metal/mime_responds.rb:216:in `respond_to'
      app/controllers/ads_controller.rb:92:in `create'
      actionpack (4.2.0) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
      actionpack (4.2.0) lib/abstract_controller/base.rb:198:in `process_action'
      actionpack (4.2.0) lib/action_controller/metal/rendering.rb:10:in `process_action'
      actionpack (4.2.0) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
      activesupport (4.2.0) lib/active_support/callbacks.rb:117:in `call'
      activesupport (4.2.0) lib/active_support/callbacks.rb:169:in `block in halting'
      activesupport (4.2.0) lib/active_support/callbacks.rb:234:in `block in halting'
      activesupport (4.2.0) lib/active_support/callbacks.rb:234:in `block in halting'
      activesupport (4.2.0) lib/active_support/callbacks.rb:151:in `block in halting_and_conditional'
      activesupport (4.2.0) lib/active_support/callbacks.rb:169:in `block in halting'
      activesupport (4.2.0) lib/active_support/callbacks.rb:234:in `block in halting'
      activesupport (4.2.0) lib/active_support/callbacks.rb:169:in `block in halting'
      activesupport (4.2.0) lib/active_support/callbacks.rb:169:in `block in halting'
      activesupport (4.2.0) lib/active_support/callbacks.rb:169:in `block in halting'
      activesupport (4.2.0) lib/active_support/callbacks.rb:92:in `_run_callbacks'
      activesupport (4.2.0) lib/active_support/callbacks.rb:734:in `_run_process_action_callbacks'
      activesupport (4.2.0) lib/active_support/callbacks.rb:81:in `run_callbacks'
      actionpack (4.2.0) lib/abstract_controller/callbacks.rb:19:in `process_action'
      actionpack (4.2.0) lib/action_controller/metal/rescue.rb:29:in `process_action'
      actionpack (4.2.0) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action'
      activesupport (4.2.0) lib/active_support/notifications.rb:164:in `block in instrument'
      activesupport (4.2.0) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
      activesupport (4.2.0) lib/active_support/notifications.rb:164:in `instrument'
      actionpack (4.2.0) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
      actionpack (4.2.0) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
      activerecord (4.2.0) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
      actionpack (4.2.0) lib/abstract_controller/base.rb:137:in `process'
      actionview (4.2.0) lib/action_view/rendering.rb:30:in `process'
      actionpack (4.2.0) lib/action_controller/metal.rb:195:in `dispatch'
      actionpack (4.2.0) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
      actionpack (4.2.0) lib/action_controller/metal.rb:236:in `block in action'
      actionpack (4.2.0) lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
      actionpack (4.2.0) lib/action_dispatch/routing/route_set.rb:42:in `serve'
      actionpack (4.2.0) lib/action_dispatch/journey/router.rb:43:in `block in serve'
      actionpack (4.2.0) lib/action_dispatch/journey/router.rb:30:in `serve'
      actionpack (4.2.0) lib/action_dispatch/routing/route_set.rb:802:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      omniauth (1.2.2) lib/omniauth/strategy.rb:186:in `call!'
      omniauth (1.2.2) lib/omniauth/strategy.rb:164:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      omniauth (1.2.2) lib/omniauth/strategy.rb:186:in `call!'
      omniauth (1.2.2) lib/omniauth/strategy.rb:164:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      bullet (5.0.0) lib/bullet/rack.rb:12:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/rack/agent_hooks.rb:30:in `traced_call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/rack/browser_monitoring.rb:32:in `traced_call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/rack/developer_mode.rb:48:in `traced_call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      warden (1.2.3) lib/warden/manager.rb:35:in `block in call'
      warden (1.2.3) lib/warden/manager.rb:34:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      rack (1.6.4) lib/rack/etag.rb:24:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      rack (1.6.4) lib/rack/conditionalget.rb:38:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      rack (1.6.4) lib/rack/head.rb:13:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      actionpack (4.2.0) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      actionpack (4.2.0) lib/action_dispatch/middleware/flash.rb:260:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      rack (1.6.4) lib/rack/session/abstract/id.rb:225:in `context'
      rack (1.6.4) lib/rack/session/abstract/id.rb:220:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      actionpack (4.2.0) lib/action_dispatch/middleware/cookies.rb:560:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      activerecord (4.2.0) lib/active_record/query_cache.rb:36:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      activerecord (4.2.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:647:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      activerecord (4.2.0) lib/active_record/migration.rb:378:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      actionpack (4.2.0) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
      activesupport (4.2.0) lib/active_support/callbacks.rb:88:in `_run_callbacks'
      activesupport (4.2.0) lib/active_support/callbacks.rb:734:in `_run_call_callbacks'
      activesupport (4.2.0) lib/active_support/callbacks.rb:81:in `run_callbacks'
      actionpack (4.2.0) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      actionpack (4.2.0) lib/action_dispatch/middleware/reloader.rb:73:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      actionpack (4.2.0) lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      better_errors (2.1.1) lib/better_errors/middleware.rb:84:in `protected_app_call'
      better_errors (2.1.1) lib/better_errors/middleware.rb:79:in `better_errors_call'
      better_errors (2.1.1) lib/better_errors/middleware.rb:57:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      actionpack (4.2.0) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      web-console (2.1.3) lib/web_console/middleware.rb:37:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      actionpack (4.2.0) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      railties (4.2.0) lib/rails/rack/logger.rb:38:in `call_app'
      railties (4.2.0) lib/rails/rack/logger.rb:20:in `block in call'
      activesupport (4.2.0) lib/active_support/tagged_logging.rb:68:in `block in tagged'
      activesupport (4.2.0) lib/active_support/tagged_logging.rb:26:in `tagged'
      activesupport (4.2.0) lib/active_support/tagged_logging.rb:68:in `tagged'
      railties (4.2.0) lib/rails/rack/logger.rb:20:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      actionpack (4.2.0) lib/action_dispatch/middleware/request_id.rb:21:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      rack (1.6.4) lib/rack/methodoverride.rb:22:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      rack (1.6.4) lib/rack/runtime.rb:18:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      activesupport (4.2.0) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      rack (1.6.4) lib/rack/lock.rb:17:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      actionpack (4.2.0) lib/action_dispatch/middleware/static.rb:113:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      rack (1.6.4) lib/rack/sendfile.rb:113:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      railties (4.2.0) lib/rails/engine.rb:518:in `call'
      railties (4.2.0) lib/rails/application.rb:164:in `call'
      newrelic_rpm (3.12.1.298) lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
      rack (1.6.4) lib/rack/content_length.rb:15:in `call'
      puma (2.11.3) lib/puma/server.rb:507:in `handle_request'
      puma (2.11.3) lib/puma/server.rb:375:in `process_client'
      puma (2.11.3) lib/puma/server.rb:262:in `block in run'
      puma (2.11.3) lib/puma/thread_pool.rb:104:in `block in spawn_thread'

通过这个版本的Rails源码，这是麻烦的方法：

def redirect_to(options = {}, response_status = {}) #:doc:
  raise ActionControllerError.new("Cannot redirect to nil!") unless options
  raise ActionControllerError.new("Cannot redirect to a parameter hash!") if options.is_a?(ActionController::Parameters)
  raise AbstractController::DoubleRenderError if response_body
  self.status        = _extract_redirect_to_status(options, response_status)
  self.location      = _compute_redirect_to_location(request, options)
  self.response_body = "<html><body>You are being <a href=\"#{ERB::Util.unwrapped_html_escape(location)}\">redirected</a>.</body></html>"
end

根据我有限的知识，我有三个嫌疑人：

HAML，因为最后一行调用的是 ERB，回溯中的那个（但我不觉得它在这里）
某些代码停止发送请求中的某些内容，从而在 location var 中出现问题。
Flash 消息中有什么东西？我安装了 Toasts，但它已经工作了好几个星期了，即使没有设置 flash 消息，也会发生错误。这是主要嫌疑人。

但是我该如何解决或调试这个问题？

编辑：从回溯中添加 redirect_to 行 在这种特殊情况下给出错误的行是

if @ad.save
  UserMailer.admin_event_email('create_ad', @ad).deliver_later
  redirect_to ad_created_path, success: I18n.t('The ad is poster and a moderator will aprove it shortly')
end

但它总是发生在 redirect_to 行。

【问题讨论】：

在线app/controllers/ads_controller.rb:92:in 'create' 的位置是什么？你能粘贴那个代码吗？
我已添加到问题中。这只是 redirect_to 调用。它总是在通话中失败。
我已经更新了答案，您能否特别检查一下ERB::Util.unwrapped_html_escape(location) 返回的内容以及location 的值是多少
嗨！我刚刚发现了一些原因。这是因为我在控制器中包含了 ApplicationHelper。在我这样做的所有控制器中，错误都会发生。我只是用 view_context.method 调用替换了方法调用，它解决了问题。我会准备一个答案并继续调查导致它的助手。非常感谢您的帮助和对问题的兴趣！
欢迎您 :) 很高兴您最终找到了解决方案，这是最重要的 :)

标签： ruby-on-rails

【解决方案1】：

换行

redirect_to ad_created_path, success: I18n.t('The ad is poster and a moderator will aprove it shortly')

到：

redirect_to ad_created_path, :flash => { success: I18n.t('The ad is poster and a moderator will aprove it shortly') }

编辑：

将 turbo 链接更新为 verison 2.5.3

gem 'turbolinks', '~> 2.5.3'

编辑 2：

在这一行下断点：

=> 76:       byebug
=> 77:       self.response_body = "<html><body>You are being <a href=\"#{ERB::Util.unwrapped_html_escape(location)}\">redirected</a>.</body></html>"

"<html><body>You are being <a href=\"#{ERB::Util.unwrapped_html_escape(location)}\">redirected</a>.</body></html>" 的结果是什么？

【讨论】：

不幸的是，试过但没有用。还尝试在重定向之前调用 flash[:success] = '...' ，完全删除 flash 但它仍然会出错...
呵呵，我知道你可能猜到了你已经尝试过的东西，但谁知道呢，也许你错过了什么，一些小细节:)
哦不，我按照你的建议试过了。我什至复制粘贴以确保我没有拼错任何东西。感谢您的尝试！我真的很感激！
嗯，愚蠢的问题——当你更新 gem 时，你把它放到 gem 文件中并运行 bundle install，或者你做 bundle gem update turbolinks？

【解决方案2】：

所以，经过很长时间，我至少找到了部分罪魁祸首：将 ApplicationHelper 包含到控制器中。

在所有包含 ApplicationHelper 的控制器中，都会发生此错误。现在，这就是我所做的：

从控制器中删除了 ApplicationHelper
将控制器中对辅助方法的调用更改为 view_context.my_helper

现在我将尝试找出导致问题的助手，并在找到时更新此答案。

【讨论】：