anchor.diff:      </tr>
     </thead>
     <tbody>
  -  <% collection.each do |resource| %>
  +  <% collection.select{|e| e.id.present? }.each do |resource| %>
       <tr class="<%= cycle('odd', 'even') %>">
       <% (columns.is_a?(Hash) ? columns.keys : columns).each do |column| %>
         <td>
  
positive.code: 
  <% if options[:append_new_link] %>
    <% if parent %>
      <%= link_to t("#{type}.new.title"), eval("new_#{options[:current_parent].class.name.tableize.singularize}_#{type.singularize}_path(options[:current_parent])") %>
    <% else %>
      <%= link_to t("#{type}.new.title"), eval("new_#{type.singularize}_path") %>
    <% end %>
  
negative.code: <% if options[:show_title] %>
  <h3><%= t("#{type}.index.title") %></h3>
  <% end %>
  <% if collection.none? || collection.select{|e| e.id.present? }.none? %>
  <p><%= I18n.t("#{type}.index.empty_collection")%></p>
  <% else %>
  <table class="table table-striped">
  