Ruby on Rails中出现错误渲染错误

Question

我正在使用Ruby定制的一个小CMS，该网站正在使用Mongrel运行。 不幸的是我对Ruby一点都不熟悉。该网站的一部分，最近停止工作（不与任何更新或这样的连接，所以我不能确定是什么原因）

检查在轨日志“production.log”显示以下内容：

ActionView :: TemplateError（未定义方法名称为nil：NilClass） on line＃25 of app/views/static/frontpage.rhtml：22：<％ Tabloid.find（：all，：limit => 4，：order =>'date DESC'）。每个都做 |小报|％> 23：24：<％= link_to tabloid.title，：controller => 'tabloid'，：action =>'show'，： id => tabloid.id％> 25：

<％= tabloid.date.strftime（“％d，％B，％Y”）％> <％= Profile.find（：first， ：conditions => [“user_id =？”，tabloid。 。USER_ID]）名称％> <％= Profile.find（：第一，：条件=> [ “USER_ID =？”， tabloid.user_id]）姓％>

26：

<％= RedCloth.new （截断（tabloid.texto，250））to_html％>

27：<％如果 tabloid.texto.size> 250％> 28：

<％=的link_to “更多>”， ：控制器=>“小报'，：action =>'show'，：id => tabloid.id％>

app/views/static/frontpage.rhtml:25 
app/views/static/frontpage.rhtml:22:in `each' 
app/views/static/frontpage.rhtml:22 
/usr/local/rubygems/gems/gems/actionpack-2.2.2/lib/action_view/renderable.rb:39:in 

send' /usr/local/rubygems/gems/gems/actionpack-2.2.2/lib/action_view/renderable.rb:39:in 渲染 ' /usr/local/rubygems/gems/gems/actionpack-2.2.2/lib/action_view/template.rb:73:in render_template' /usr/local/rubygems/gems/gems/actionpack-2.2.2/lib/action_view/base.rb:256:in 渲染' 在/ usr /本地/ RubyGems的/ gems/gems/actionpack-2.2.2/lib/action_view/base.rb：367： _render_with_layout' /usr/local/rubygems/gems/gems/actionpack-2.2.2/lib/action_view/base.rb:254:in render' /usr/local/rubygems/gems/gems/actionpack-2.2.2/lib/action_controller/base.rb ：1174：在 render_for_file' /usr/local/rubygems/gems/gems/actionpack-2.2.2/lib/action_controller/base.rb:896:in render_without_benchmark ' /usr/local/rubygems/gems/gems/actionpack-2.2.2/lib/action_controller/benchmarking.rb:51:in render' /usr/local/rubygems/gems/gems/activesupport-2.2.2/lib/active_support/core_ext/benchmark.rb:8:in 实时' /usr/local/rubygems/gems/gems/actionpack-2.2.2/lib/action_controller/benchmarking.rb:51:in render' /usr/local/rubygems/gems/gems/actionpack-2.2.2/lib/action_controller/base.rb:868:in render_without_benchmark' /usr/local/rubygems/gems/gems/actionpack-2.2.2 /lib/action_controller/benchmarking.rb:51:in render' /usr/local/rubygems/gems/gems/activesupport-2.2.2/lib/active_support/core_ext/benchmark.rb:8:in 实时 ' /usr/local/rubygems/gems/gems/actionpack-2.2.2/lib/action_controller/benchmarking.rb:51:in render' /usr/local/rubygems/gems/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:122:in 派遣' /usr/local/rubygems/gems/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:132:in dispatch_cgi' /usr/local/rubygems/gems/gems/actionpack-2.2.2/lib/action_controller/dispatcher.rb:39:in dispatch' /usr/local/rubygems/gems/gems/mongrel-1.1.5/ lib/mongrel/rails.rb：76：在 process' /usr/local/rubygems/gems/gems/mongrel-1.1.5/lib/mongrel/rails.rb:74:in 同步' /usr/local/ru bygems/gems/gems/mongrel-1.1.5/lib/mongrel/rails.rb：74：在 process' /usr/local/rubygems/gems/gems/mongrel-1.1.5/lib/mongrel.rb:159:in process_client' /usr/local/rubygems/gems/gems/mongrel-1.1.5/lib/mongrel.rb ：158：在each' /usr/local/rubygems/gems/gems/mongrel-1.1.5/lib/mongrel.rb:158:in process_client ' /usr/local/rubygems/gems/gems/mongrel-1.1.5/lib/mongrel.rb:285:in run' /usr/local/rubygems/gems/gems/mongrel-1.1.5/lib/mongrel.rb:285:in初始化' 的/ usr /本地/的rubygems /宝石/宝石/杂种-1.1.5/lib/mongrel.rb：285：在new' /usr/local/rubygems/gems/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:282:in 运行' /usr/local/rubygems/gems/gems/mongrel-1.1.5/lib/mongrel/configurator。RB：281：在 each' /usr/local/rubygems/gems/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:281:in 运行”

等 的杂种原木居然还没有更新，在一段时间。任何问题是什么问题或我应该继续挖掘？

Answer 1

Profile.find(:first, :conditions => [ "user_id = ?", tabloid.user_id])查询返回nil所以他不能在其上执行name