ruby on rails错误（网页有重定向循环错误）

Question

我在我的网站上安装了fedena（rails应用程序）

http://www.technoadmin.com/

我安装了所有插件，宝石，创建并迁移了数据库。

我已经创建了像这样的符号链接

ln -s ~/fedena/public ~/public_html

访问我的网页时显示

此网页有重定向循环

所以请帮助我。我是newbie.i试图安装这个 申请最后一次 一个月。我想我已经走到了最后一步。所以请帮帮我 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application_controller.rb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

Answer 1

问题在于名为config_value

的方法

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

所以请检查第319行的application_controller.rb并发布那里的内容

编辑：

在您的代码中（第319行），您在config_value上调用lan - 但错误消息是lan的值为零 - 所以config_value不能呼吁它。

之前你有lan = Configuration.find_by_config_key("Locale") - 所以我猜测rails找不到名为“Locale”的config_key - 但我真的不确定。您是编写此代码还是由gem生成的？

Answer 2

当尝试使用Docker在Ubuntu 20.04上设置Fedena时，我遇到了同样的问题。

每次我尝试在浏览器上的http：// server-address：8080：/ user / dashboard上访问应用程序时，都会得到重定向。然后在控制台上，出现错误：

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'

这是我修复的方式：

注意：这是一个临时修复，因为我没有太多时间来研究代码库。

问题源自app/controllers/application.rb文件中的以下代码：

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

我假设操作set_user_language试图根据用户在其机器/应用程序上设置的默认语言环境或会话语言为用户设置语言，但随后config_value在Ian的{​​{1}}上调用的方法似乎是lan.config_value。

这会导致重定向错误，因为它是使用Nil在app/controllers/application.rb中调用的：

before_filter

因此，在应用程序中完成任何操作之前，将调用/调用它。

一个临时解决方法是为before_filter :set_user_language 文件顶部定义的before_filter加上注释：

app/controllers/application.rb

现在您可以尝试再次访问该页面。

您还可以考虑运行命令# before_filter :set_user_language 来将rake db:seed文件中的数据播种到数据库中，因为它包含应用程序正常运行所需的一些重要数据。而且它似乎还包含配置的db/seed.rb数据。

仅此而已。

我希望这会有所帮助