No action responded

     Web开发敏捷之道P81页的delete错误：
原文代码：
<%= link_to 'Destroy', { :action => 'destroy', :id => product },
        :confirm => "Are you sure?",
        :method => :post %>

代码删除是不能实现的。
正确的代码应该是：
        <%= link_to 'Destroy', { :action => 'destroy', :id => product },
        :confirm => "Are you sure?",
        :method => :delete %>