模式二里面的链接问题

app/models/sub_document_comment.rb

@@ -10,6 +10,7 @@ class SubDocumentComment < ActiveRecord::Base
   has_many :org_acts, :class_name => 'OrgActivity',:as =>:org_act ,:dependent => :destroy
   after_create :document_save_as_sub_activity
   after_update :update_activity
+  validates_presence_of :content
 
   #动态的更新
   private

app/views/sub_document_comments/_show_newstyle.html.erb

@@ -1,9 +1,9 @@
 <div class="sn-innner-content">
   <div class="sn-row sn-bg-white">
     <div class="sn-content-position sn-hidden"> 您的位置：<%= link_to "首页", organization_path(@organization), :class => "sn-link-grey2" %> &gt;
-      <%=  @org_subfield.name %> &gt;
-      <%= link_to @subdomain.name, org_subfield_sub_domain_path(@subdomain), :class => "sn-link-grey2" %> &gt;
-      <%= link_to @document.title, org_subfield_sub_domain_sub_document_comment_path(@document), :class => "sn-link-grey2"  %> </div>
+      <%=link_to  @org_subfield.name, organization_path(@organization, :org_subfield_id => @org_subfield.id), :class => "sn-link-grey2" %> &gt;
+      <%= link_to @subdomain.name, org_subfield_sub_domain_sub_document_comments_path(:sub_domain_id => @subdomain.id, :org_subfield_id => @org_subfield.id), :class => "sn-link-grey2" %> &gt;
+      <a  class = "sn-link-grey2"><%= @document.title  %></a></div>
   </div>
   <div class="sn-inner-newslist">
     <h2 class="sn-inner-newsh2 sn-hidden"><%= @document.title %></h2>

app/views/sub_document_comments/_show_sub_document_newstyle.html.erb

@@ -3,8 +3,8 @@
     <div class="sn-row sn-bg-white">
       <div class="sn-content-position">
         您的位置：<%= link_to "首页", organization_path(@organization), :class => "sn-link-grey2" %> &gt;
-        <%=  @org_subfield.name %> &gt;
-        <%= link_to @subdomain.name, org_subfield_sub_domain_path(@subdomain, :org_subfield_id => @org_subfield.id), :class => "sn-link-grey2" %>
+        <%=link_to  @org_subfield.name, organization_path(@organization, :org_subfield_id => @org_subfield.id), :class => "sn-link-grey2" %> &gt;
+        <%= link_to @subdomain.name, org_subfield_sub_domain_sub_document_comments_path(:sub_domain_id => @subdomain.id, :org_subfield_id => @org_subfield.id), :class => "sn-link-grey2" %>
       </div>
     </div>
     <div class="sn-inner-newslist">