我创建了新的帖子类型和分类法。以下是脚本：

add_action(\'init\', \'my_custom_post_type_init\');
function my_custom_post_type_init()
{
  $labels = array(
    \'name\' => _x(\'Roundabouts\', \'post type general name\'),
    \'singular_name\' => _x(\'Roundabout\', \'post type singular name\'),
    \'add_new\' => _x(\'Add New\', \'Roundabout\'),
    \'add_new_item\' => __(\'Add New Roundabout\'),
    \'edit_item\' => __(\'Edit Roundabout\'),
    \'new_item\' => __(\'New Roundabout\'),
    \'view_item\' => __(\'View Roundabout\'),
    \'search_items\' => __(\'Search Roundabouts\'),
    \'not_found\' =>  __(\'No Roundabouts found\'),
    \'not_found_in_trash\' => __(\'No Roundabouts found in Trash\'),
    \'parent_item_colon\' => \'\'
  );
  $args = array(
    \'labels\' => $labels,
    \'public\' => true,
    \'publicly_queryable\' => true,
    \'show_ui\' => true,
    \'query_var\' => true,
    \'rewrite\' => true,
    \'capability_type\' => \'post\',
    \'hierarchical\' => false,
    \'menu_position\' => 5,
    \'rewrite\' => array(\'slug\' => \'%category%\', \'with_front\' => FALSE),
    \'taxonomies\' => array( \'post_tag\', \'category\'),
    \'supports\' => array(\'title\',\'editor\',\'author\',\'thumbnail\',\'excerpt\',\'comments\', \'thumbnail\')
  );
  register_post_type(\'roundabouts\',$args);
}

这是永久链接设置，我不允许更改。

/%category%/%postname%/

现在我需要生成permalink，如：

http://my_site/category_name/post_title

虽然我在谷歌上找到了许多文章，但问题如下：

• Permalinks 404 with custom post type

• Custom Permalinks for Custom Post Types in WordPress 3.0+

• custom post type with post_id in permalink structure

  • Custom Post Type Permalinks
  这会以某种方式将我的post permalink转换为我所需要的，但如果我点击了该链接，就会出现404错误。

  下面是最适合我的上述代码的修改后的脚本：

  // Add filter to plugin init function
  add_filter(\'post_type_link\', \'gallery_permalink\', 10, 3);  
  // Adapted from get_permalink function in wp-includes/link-template.php
  function gallery_permalink($permalink, $post_id, $leavename) {
      $post = get_post($post_id);
  
      $rewritecode = array(
          \'%year%\',
          \'%monthnum%\',
          \'%day%\',
          \'%hour%\',
          \'%minute%\',
          \'%second%\',
          $leavename? \'\' : \'%postname%\',
          \'%post_id%\',
          \'%category%\',
          \'%author%\',
          $leavename? \'\' : \'%pagename%\',
      );
  
      if ( \'\' != $permalink && !in_array($post->post_status, array(\'draft\', \'pending\', \'auto-draft\')) ) {
  
          $unixtime = strtotime($post->post_date);
  
          $category = \'\';
          if ( strpos($permalink, \'%category%\') !== false ) {
  
              $cats = get_the_category($post->ID);
              if ( $cats ) {
                  usort($cats, \'_usort_terms_by_ID\'); // order by ID
                  $category = $cats[0]->slug;
                  if ( $parent = $cats[0]->parent )
                      $category = get_category_parents($parent, false, \'/\', true) . $category;
              }
              // show default category in permalinks, without
              // having to assign it explicitly
              if ( empty($category) ) {
                  $default_category = get_category( get_option( \'default_category\' ) );
                  $category = is_wp_error( $default_category ) ? \'\' : $default_category->slug;
              }
          }
  
          $author = \'\';
          if ( strpos($permalink, \'%author%\') !== false ) {
              $authordata = get_userdata($post->post_author);
              $author = $authordata->user_nicename;
          }
  
          $date = explode(" ",date(\'Y m d H i s\', $unixtime));
          $rewritereplace =
          array(
              $date[0],
              $date[1],
              $date[2],
              $date[3],
              $date[4],
              $date[5],
              $post->post_name,
              $post->ID,
              $category,
              $author,
              $post->post_name,
          );
          $permalink = str_replace($rewritecode, $rewritereplace, $permalink);
      } else { // if they\'re not using the fancy permalink option
      }
      return $permalink;
  }
  

  请指导我还能做些什么。