SOLUTION - Updated: 03/03/2015 - 感谢/u/G.M。

下面在术语编辑页面中添加了一个新字段，并将该值保存到未使用的字段中（暂时不使用）term_group 然后可用于订购条款的字段。在以下挂钩（操作）中，您需要替换TAXONOMY_SLUG 用你真正的分类学鼻涕虫。

/**
 * Append Fields To Term Edit Page
 * @param Term Object $term
 * @param string $taxonomy
 */
function term_order_field( $term, $taxonomy ) {
  ?>
    <tr class="form-field">
        <th scope="row" valign="top">
            <label for="meta-order"><?php _e( \'Category Order\' ); ?></label>
        </th>
        <td>
            <input type="text" name="_term_order" size="3" style="width:5%;" value="<?php echo ( ! empty( $term->term_group ) ) ? $term->term_group : \'0\'; ?>" />
            <span class="description"><?php _e( \'Categories are ordered Smallest to Largest\' ); ?></span>
        </td> 
    </tr>
  <?php
}
add_action( \'TAXONOMY_SLUG_edit_form_fields\', \'term_order_field\', 10, 2 );

/**
 * Save Term Order
 * @param int $term_id
 */
function save_term_order( $term_id ) {
    global $wpdb;

    if( isset( $_POST[\'_term_order\'] ) ) {
        $wpdb->update( 
            $wpdb->terms,
            array(
                \'term_group\' => $_POST[\'_term_order\']
            ),
            array( 
                \'term_id\'    => $term_id
            )
        );
    }
} // END Function
add_action( \'edited_TAXONOMY_SLUG\', \'save_term_order\' );

Add Term Order cell to Term List

/**
 * Add Column To Show \'Term Order\' Field
 * @param array $columns
 * @return array $columns
 */
function term_order_header( $columns ) {
    $columns[\'order\'] = \'<center>Order</center>\';
    return $columns;
}
add_filter( \'manage_edit-TAXONOMY_SLUG_columns\', \'term_order_header\' );

/**
 * Give \'Term Order\' Column A Value `term_group`
 * @param string $empty
 * @param string $col_name
 * @param int $term_id
 * @return string
 */
function term_order_header_val( $empty = \'\', $col_name, $term_id ) {
    if( isset( $_GET[\'taxonomy\'] ) && \'order\' == $col_name ) {
        $term = get_term( $term_id, $_GET[\'taxonomy\'] );
        return "<center>{$term->term_group}</center>";
    } else {
        return \'0\';
    }
}
add_filter( \'manage_TAXONOMY_SLUG_custom_column\', \'term_order_header_val\', 10, 3 );

Hook Documentation

• action {$taxonomy}_edit_form_fields
• action edited_{$taxonomy}
• filter manage_{$screen->id}_columns
• filter manage_{$this->screen->taxonomy}_custom_column

  /** Add New Field To Category **/
  function extra_category_fields( $tag ) {
      $t_id = $tag->term_id;
      $cat_meta = get_option( "category_$t_id" );
  ?>
  <tr class="form-field">
      <th scope="row" valign="top"><label for="meta-order"><?php _e(\'Category Order\'); ?></label></th>
      <td>
          <div id="catOrder">
              <input type="text" name="cat_meta[order]" size="3" style="width:5%;" value="<?php echo (isset($cat_meta[\'order\'])) ? $cat_meta[\'order\'] : \'0\'; ?>" />
          </div>
          <span class="description"><?php _e(\'Categories are ordered Smallest to Largest\'); ?></span>
      </td> 
  </tr>
  <?php
  }
  add_action(\'protax_edit_form_fields\',\'extra_category_fields\');  
  
  /** Save Category Meta **/
  function save_extra_category_fileds( $term_id ) {
      global $wpdb;
      if ( isset( $_POST[\'cat_meta\'] ) ) {
          $t_id = $term_id;
          $cat_meta = get_option( "category_$t_id");
          $cat_keys = array_keys($_POST[\'cat_meta\']);
              foreach ($cat_keys as $key){
              if (isset($_POST[\'cat_meta\'][$key])){
                  $cat_meta[$key] = $_POST[\'cat_meta\'][$key];
              }
          }
          update_option( "category_$t_id", $cat_meta );
          $wpdb->update($wpdb->terms, array(\'term_group\' => $cat_meta[\'order\']), array(\'term_id\'=>$term_id));
      }
  }
  add_action ( \'edited_protax\', \'save_extra_category_fileds\');
  

  称之为：

  $procats = get_categories(array(\'taxonomy\' => \'protax\', \'hide_empty\' => 0, \'orderby\' => \'term_group\'));
  

  Edit - 您还可以使用此筛选器在管理面板中对其进行排序：

  function change_term_order( $orderby, $args, $taxonomies ) {
      if ( is_admin() && \'protax\' !== $taxonomies[0] )
          return $orderby;
  
      $orderby = \'term_group\';
      $args[\'order\'] = \'ASC\';
      return $orderby;
  }
  add_filter( \'get_terms_orderby\', \'change_term_order\', 10, 3 );