anchor.diff:  <table class="index">
     <tr>
       <th style="width:140px;"><%= "#{t('spree.date')}/#{t('spree.time')}" %></th>
  -    <% unless @comment_types.empty? %>
  +    <% if @comment_types and !@comment_types.empty? %>
         <th><%= t("type") %></th>
       <% end %>
       <th><%= t("comment") %></th>
  
positive.code:         <th colspan="2"><%= t('add_comment') %></th>
        </thead>
        <tbody>
           <% unless @comment_types.empty? %>
            <tr>
              <td><%= f.label :comment_type_id, t("type") %><br /></td>
              <td><%= f.select :comment_type_id, @comment_types.map{|ct| [ct.name, ct.id]},{} ,:class => 'title' %></td>
  
negative.code:   <% commentable.comments.reverse.each_with_index do |comment, index| %>
      <tr id="<%= dom_id(comment) %>">
        <td><%= comment.created_at.to_formatted_s(:long) %></td>
        <% if @comment_types and !@comment_types.empty? %>
          <td><%= comment.comment_type.name if comment.comment_type %></td>
        <% end %>
        <td>
          <div id="order-comment-header-<%= index %>" class="order-comment-header">
            <strong><%= comment.user.email + ' ' + t('said')%> :</strong>
          </div>
          <div id="order-comment-body-<%= index %>" class="order-comment-body">
            <%= comment.comment %>
  