Rails 3 - 生产模式中的开发错误

Question

我在生产服务器上使用Rails,Passenger(均为3.0.5)和Nginx.当我听说,Rails的应该显示public/404.html或public/500.html代替像开发错误的ActiveRecord::RecordNotFound或Unknown action但这并没有发生.我试图删除config.ru文件并在nginx.conf中设置rack_env或rails_env,但没有任何帮助.

这是我的nginx.conf:

worker_processes  1;

events {
    worker_connections  1024;
}

http {
    passenger_root /home/makk/.rvm/gems/ruby-1.9.2-p0/gems/passenger-3.0.5;
    passenger_ruby /home/makk/.rvm/bin/passenger_ruby;
    #passenger_ruby /home/makk/.rvm/wrappers/ruby-1.9.2-p0/ruby;

    include       mime.types;
    default_type  application/octet-stream;

    sendfile        on;
    keepalive_timeout  65;

    server {
        listen       80;
        server_name  localhost;

        location / {
            root   /home/makk/projects/1server/deploy/current/public;
            index  index.html index.htm;
            passenger_enabled on;
            rack_env production;

            recursive_error_pages on;

            if (-f /home/makk/projects/1server/maintenance.html) {
              return 503;
            }

            error_page 404 /404.html;
            error_page 500 502 504 /500.html;
            error_page 503 @503;
        }

        location @503 {
            error_page 405 = /maintenance.html;

            # Serve static assets if found.
              if (-f $request_filename) {
              break;
            }
            rewrite ^(.*)$ /maintenance.html break;
        }

        location ~ ^(\/phpmyadmin\/)(.*)$ {
        fastcgi_pass    127.0.0.1:9000;
        fastcgi_index   index.php;
        fastcgi_split_path_info         ^(\/phpmyadmin\/)(.*)$;
        fastcgi_param   SCRIPT_FILENAME /usr/share/phpmyadmin/$fastcgi_path_info;
        include         fastcgi_params;
        }
    }
}

看来,这个问题重复这一个,但没有工作的建议.

UPD:我在同一台PC上同时拥有开发和生产应用程序.在生产中config.consider_all_requests_local = false,由于local_request?方法,Rails忽略(在/config/environments/production.rb中).因此下面列出了一种可能的解决方案(取自此处):

# config/initializers/local_request_override.rb
module CustomRescue
  def local_request?
    return false if Rails.env.production? || Rails.env.staging?
    super
  end
end

ActionController::Base.class_eval do
  include CustomRescue
end

或者对于Rails 3:

class ActionDispatch::Request
 def local?
   false
 end
end

Answer 1

要在Rails 3中使用它,您必须执行以下操作:

首先,创建404和500错误页面.我把我的中app/views/errors/404.html.erb和app/views/errors/500.html.erb.

其次,将以下内容添加到application_controller.rb:

unless Rails.application.config.consider_all_requests_local
  rescue_from Exception, :with => :render_error
  rescue_from ActiveRecord::RecordNotFound, :with => :render_not_found
  rescue_from AbstractController::ActionNotFound, :with => :render_not_found
  rescue_from ActionController::RoutingError, :with => :render_not_found
  rescue_from ActionController::UnknownController, :with => :render_not_found
  rescue_from ActionController::UnknownAction, :with => :render_not_found
end

def render_error exception
  Rails.logger.error(exception)
  render :template => "/errors/500.haml", :status => 500
end

def render_not_found exception
  Rails.logger.error(exception)
  render :template => "/errors/404.haml", :status => 404
end

最后,让你的production.rb不考虑所有本地请求:

config.consider_all_requests_local = false

PS:请记住,当发生完整的路由错误时 - 即绝对没有路由匹配,而不仅仅是ActiveRecord NotFound错误,public/404.html将会显示,因此最好将其设置到位.我通常只是将它重定向到我的errors_controller,这可以确保后面提到的任何404错误都没有被正确地重定向到ErrorsController.

<script type="text/javascript">
<!--
window.location = "<%= request.host_with_port %>/errors/404"
//-->
</script>

Answer 2

将root声明移至“服务器”块，以便服务器在收到 5XX、4XX 错误时可以使用 Rails 应用程序定义的错误处理页面。

或者将error_page指令添加到正在使用乘客的位置块，以便错误处理程序可以public/5xx.html在需要时解析 Rails 应用程序公共目录中的 。

如果您的应用程序没有提供页面，并且 nginx 对静态页面不可见，那么它就无法提供您想要的页面。