液体view_paths错误

Question

我正在尝试部署我的RoR应用程序。当RAILS_ENV设置为开发时，它似乎在我的开发机器上正常工作。然而，当我把它在生产服务器上，并将其设置为生产模式导航起始页后，我收到以下错误：

=> Booting Mongrel 
=> Rails 2.3.8 application starting on http://0.0.0.0:3000 
=> Call with -d to detach 
=> Ctrl-C to shutdown server 


Processing PagesController#show (for 173.79.8.203 at 2010-08-09 20:17:21) [GET] 
    Parameters: {"slug"=>[], "action"=>"show", "controller"=>"pages"} 

NoMethodError (undefined method `view_paths' for #<Liquid::Template:0x7fc6f8b5f8a8>): 




Processing ApplicationController#show (for 173.79.8.203 at 2010-08-09 20:17:21) [GET] 
    Parameters: {"slug"=>[], "action"=>"show", "controller"=>"pages"} 

NoMethodError (undefined method `view_paths' for #<Liquid::Template:0x7fc6f8b5f8a8>): 


Rendering /home/flavorpulse/sites/public.flavorpulse.com/public/500.html (500 Internal Server Error) 

怪异的是，在我的开发环境，我得到了类似的输出但我没有被重定向到500.html。我的开发机器上的类似的输出是：

=> Booting Mongrel 
=> Rails 2.3.8 application starting on http://0.0.0.0:3000 
=> Call with -d to detach 
=> Ctrl-C to shutdown server 
    SQL (0.1ms) SET NAMES 'utf8' 
    SQL (0.1ms) SET SQL_AUTO_IS_NULL=0 


Processing PagesController#show (for 127.0.0.1 at 2010-08-09 16:07:50) [GET] 
    Parameters: {"slug"=>[], "action"=>"show", "controller"=>"pages"} 
    Domain Columns (1.4ms) SHOW FIELDS FROM `domains` 
    Domain Load (45.8ms) SELECT * FROM `domains` WHERE (`domains`.`domain_name` = 'localhost') LIMIT 1 
    Account Columns (1.6ms) SHOW FIELDS FROM `accounts` 
    Account Load (0.8ms) SELECT * FROM `accounts` WHERE (`accounts`.`id` = 1) 
    CACHE (0.0ms) SELECT * FROM `accounts` WHERE (`accounts`.`id` = 1) 
    Theme Columns (2.0ms) SHOW FIELDS FROM `themes` 
    Theme Load (0.8ms) SELECT * FROM `themes` WHERE (`themes`.`id` = 1) 
    PageTemplate Columns (1.4ms) SHOW FIELDS FROM `page_templates` 
    PageTemplate Load (0.3ms) SELECT * FROM `page_templates` WHERE (`page_templates`.`name` = 'index') AND (`page_templates`.theme_id = 1) LIMIT 1 
    CACHE (0.0ms) SELECT * FROM `domains` WHERE (`domains`.`domain_name` = 'localhost') LIMIT 1 
    CACHE (0.0ms) SELECT * FROM `accounts` WHERE (`accounts`.`id` = 1) 
    CACHE (0.0ms) SELECT * FROM `accounts` WHERE (`accounts`.`id` = 1) 
    CACHE (0.0ms) SELECT * FROM `themes` WHERE (`themes`.`id` = 1) 
    PageLayout Load (0.4ms) SELECT * FROM `page_layouts` WHERE (`page_layouts`.theme_id = 1) LIMIT 1 
    PageLayout Columns (1.4ms) SHOW FIELDS FROM `page_layouts` 
    CACHE (0.0ms) SELECT * FROM `domains` WHERE (`domains`.`domain_name` = 'localhost') LIMIT 1 
    CACHE (0.0ms) SELECT * FROM `accounts` WHERE (`accounts`.`id` = 1) 
    CACHE (0.0ms) SELECT * FROM `accounts` WHERE (`accounts`.`id` = 1) 
    Page Load (0.3ms) SELECT * FROM `pages` WHERE (`pages`.`show_in_navigation` = 1) AND (`pages`.account_id = 1) 

NoMethodError (undefined method `view_paths' for #<Liquid::Template:0x10337ef98>): 


Rendering rescues/layout (internal_server_error) 

但是你可以看到主要的区别是在生产服务器上它并不像任何呼叫正在对数据库进行。

更新2010/08/09 17:41 @美国东部时间：

这里是我的控制器代码这说明我不这样做有一个实例变量命名模板什么：

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Answer 1

请勿使用@template。使用这个（性能虽然吸...你可能有后来优化）：

final_render = Liquid::Template.parse(page_layout) # Parses and compiles the template 
final = final_render.render(assigns) 

render :text => final 

Answer 2

你们看到的就是Rails如何配置为在开发环境和生产环境之间表现不同。你主要区别是：

• 默认生产日志级别不显示的数据库访问，虽然它们几乎肯定发生
• 在生产中你重定向到一个500通知。在开发中，您经常会看到一个堆栈跟踪，

您遇到的错误在两种情况下均存在。不要认为，仅仅因为它在开发中似乎不那么严重，它不是一个问题。

发布类似问题here。也许这是你的问题。