dealing with layout file bug

app/views/admin/designs/_form.html.erb

@@ -18,9 +18,9 @@
 <p>
 <%= f.label "layout", t('admin.layout') %>
 <%  if @design.layout.blank? %>
-    <%= f.file_field :layout_file %>
+    <%= f.file_field :layout %>
   <% else%>
-    <%= File.basename (Design.all.last.layout.url)  %>
+    <%= File.basename (@design.layout.file.url)  %>
 <% end %> 
 </p>
 <p>

app/views/layouts/admin.html.erb

@@ -32,7 +32,6 @@
       
       <ul id="nav">
           <li><%= link_to t('homepage'), root_path %></li>
-          <li><%= link_to t('admin.item'), admin_items_path %></li>
           <li><%= link_to t('admin.layout'), admin_layouts_path %></li>
           <li><%= link_to t('admin.design'), admin_designs_path %></li>
           <li><%= link_to t('admin.asset'), admin_assets_path %></li>