问排序在脚表中不起作用

EN

<table class='footable' data-page-navigation=".pagination" data-filter="#filter" data-page-size="10" data-page-previous-text="prev" data-page-next-text="next">
  <thead>
    <tr>
      <th data-sort-initial="true" class='sort-column'>Name</th>
      <th class='sort-column'>Description</th>      
      <th>Actions</th>     
      <th>Manage</th>
    </tr>
  </thead>

  <tbody>
    <% @fee_categories.each do |fee_category| %>
      <tr>
        <td><%= link_to fee_category.name, fee_category %></td>
        <td><%= fee_category.description %></td>
        <td>          
          <%= link_to edit_fee_category_path(fee_category) do %>
            <i class='icon-white icon-pencil btn-primary btn'></i>
          <% end  %>
          <%= link_to fee_category, method: :delete, data: { confirm: 'Are you sure?' } do %>
            <i class='icon-white icon-remove btn-danger btn'></i>
          <% end %>
        </td>
        <td><%= link_to "Add Particulars", "#" %></td>
      </tr>
    <% end %>
  </tbody>
  <tfoot class="hide-if-no-paging">
    <tr>
      <td colspan="5">
        <div class="pagination pagination-centered"></div>
      </td>
    </tr>
  </tfoot>
</table>

$('.footable').footable();