Ruby on rails Rails:Fedena网页出现重定向循环错误。无方法错误未定义nil:NilClass的方法配置值

我已经在我的网站上安装了fedena（rails应用程序）

我已经安装了所有插件，gems，创建并迁移了数据库

我创建了这样的符号链接

ln -s ~/fedena/public ~/public_html

当访问我的网页时，它会显示

此网页有一个重定向循环

所以请帮帮我。我是个新手，我试过安装这个 最后一次申请 一个月。我想我已经走到了最后一步。所以请帮我 解决这个错误。我将非常感谢你

我的生产日志文件是

# Logfile created on Fri Jul 26 14:55:03 +0530 2013

Processing UserController#login (for 182.73.241.18 at 2013-07-26 15:00:48) [GET]
  Parameters: {"action"=>"login", "controller"=>"user"}
[FedenaRescue] No method error undefined method `config_value' for nil:NilClass

NoMethodError (undefined method `config_value' for nil:NilClass):
  app/controllers/application_controller.rb:319:in `set_user_language'
  vendor/bundle/ruby/1.8/gems/activesupport-2.3.5/lib/active_support/callbacks.rb:178:in `send'
  vendor/bundle/ruby/1.8/gems/activesupport-2.3.5/lib/active_support/callbacks.rb:178:in `evaluate_method'
  vendor/bundle/ruby/1.8/gems/activesupport-2.3.5/lib/active_support/callbacks.rb:166:in `call'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/filters.rb:225:in `call'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/filters.rb:629:in `run_before_filters'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/filters.rb:615:in `call_filters'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/filters.rb:610:in `perform_action_without_benchmark'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/rescue.rb:160:in `perform_action_without_flash'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/flash.rb:146:in `perform_action'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:532:in `send'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:532:in `process_without_filters'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/filters.rb:606:in `process'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:391:in `process'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/base.rb:386:in `call'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/routing/route_set.rb:437:in `call'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:87:in `dispatch'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:121:in `_call'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:130:in `build_middleware_stack'
  vendor/bundle/ruby/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:29:in `call'
  vendor/bundle/ruby/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:29:in `call'
  vendor/bundle/ruby/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache'
  vendor/bundle/ruby/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:9:in `cache'
  vendor/bundle/ruby/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:28:in `call'
  vendor/bundle/ruby/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/string_coercion.rb:25:in `call'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/params_parser.rb:15:in `call'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/session/cookie_store.rb:93:in `call'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/failsafe.rb:26:in `call'
  vendor/bundle/ruby/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:106:in `call'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/rack/request_handler.rb:96:in `process_request'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/abstract_request_handler.rb:513:in `accept_and_process_next_request'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/abstract_request_handler.rb:274:in `main_loop'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/classic_rails/application_spawner.rb:321:in `start_request_handler'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/classic_rails/application_spawner.rb:275:in `send'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/classic_rails/application_spawner.rb:275:in `handle_spawn_application'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/utils.rb:479:in `safe_fork'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/classic_rails/application_spawner.rb:270:in `handle_spawn_application'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server.rb:357:in `__send__'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server.rb:180:in `start'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/classic_rails/application_spawner.rb:149:in `start'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/spawn_manager.rb:219:in `spawn_rails_application'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server_collection.rb:132:in `lookup_or_add'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/spawn_manager.rb:214:in `spawn_rails_application'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server_collection.rb:82:in `synchronize'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/spawn_manager.rb:213:in `spawn_rails_application'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/spawn_manager.rb:132:in `spawn_application'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/spawn_manager.rb:275:in `handle_spawn_application'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server.rb:357:in `__send__'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
  /usr/lib/ruby/gems/1.8/gems/passenger-3.0.9/helper-scripts/passenger-spawn-server:99

Redirected to http://technoadmin.com/user/dashboard

这些是从310到325的行，我的应用程序_controller.rb中只有325行

return @local_tzone_time
  end

  private
  def set_user_language
    lan = Configuration.find_by_config_key("Locale")
    I18n.default_locale = :en
    Translator.fallback(true)
    if session[:language].nil?
      I18n.locale = lan.config_value
    else
      I18n.locale = session[:language]
    end
    News.new.reload_news_bar
  end
end

---

问题在于名为

config\u value

NoMethodError (undefined method config_value' for nil:NilClass): app/controllers/application_controller.rb:319:inset_user_language' 

因此，请在第319行检查您的

应用程序\u controller.rb

，并发布其中的内容

编辑：

在您的代码（第319行）中，您正在调用

lan

上的

config\u value

——但错误消息是

lan

有一个nil值，因此无法对其调用config\u值

---

前面有

lan=Configuration.find\u by\u config\u key（“Locale”）

——所以我猜rails找不到名为“Locale”的配置键——但我真的不确定。这段代码是你写的还是由gem生成的？

我在使用Docker在Ubuntu20.04上安装Fedena时遇到了同样的问题

每次我尝试在上访问浏览器上的应用程序时http://server-address:8080:/user/dashboard，我得到了一个重定向。然后在我的控制台上，我得到一个错误：

web_1  | Processing UserController#dashboard (for 103.89.5.96 at 2020-10-25 18:33:15) [GET]
web_1  |   Parameters: {"controller"=>"user", "action"=>"dashboard"}
web_1  | [FedenaRescue] No method error undefined method `config_value' for nil:NilClass
web_1  | 
web_1  | NoMethodError (undefined method `config_value' for nil:NilClass):
web_1  |   app/controllers/application_controller.rb:342:in `set_user_language'

以下是我如何修复它的方法：

注意：这是一个临时修复，因为我没有太多时间深入研究代码库

问题源于

app/controllers/application.rb

文件中的此代码：

private

def set_user_language
  lan = Configuration.find_by_config_key('Locale')
  I18n.default_locale = :en
  Translator.fallback(true)
  I18n.locale = if session[:language].nil?
                  lan.config_value
                else
                  session[:language]
                end
  News.new.reload_news_bar
end

# before_filter :set_user_language

我假设操作

set\u user\u language

尝试根据在用户的计算机/应用程序上设置的默认区域设置语言或会话语言为用户设置语言，但是

lan.config\u value

中调用

Ian

的

config\u value

方法似乎是

Nil

这会导致重定向错误，因为它是在

app/controllers/application.rb中使用
before\u过滤器调用的：

before_filter :set_user_language

因此，在应用程序中完成任何操作之前都会调用它

临时修复方法是在
app/controllers/application.rb
文件顶部定义的过滤器之前注释掉
：

private

def set_user_language
  lan = Configuration.find_by_config_key('Locale')
  I18n.default_locale = :en
  Translator.fallback(true)
  I18n.locale = if session[:language].nil?
                  lan.config_value
                else
                  session[:language]
                end
  News.new.reload_news_bar
end

# before_filter :set_user_language

现在您可以再次尝试访问该页面

<>您可以考虑运行命令<代码> RAKDB：种子>代码>，将包含在dB/StEn.Rb文件中的数据存入数据库，因为它包含了一些需要应用程序才能顺利运行的重要数据。而且它似乎还包含
config\u值
用于配置的数据

就这些

我希望这有帮助
请修复格式化i18n.locale=lan.config\u值查看我上面链接的格式化页面，并在主帖子中发布应用程序控制器的第310-330行。我已在主帖子中发布了代码。请帮助我解决由gem生成的错误。实际上，这是一个名为fedena（一个学校erp）的应用程序，我尝试在Site5上安装了它。你能猜出错误是什么吗？我该如何解决它？请