php 在帖子和页面的预览链接中添加页面slug的功能

Posted 2021-05-04

</php
/** function to add page slug in preview link of post and page 
 * 
 * @param type $preview_link
 * @param type $post
 * @return type string 
 */
function custom_preview_post_link($preview_link, $post) {
    /*
      Firstly Check post status, if its draft/pending/auto-draft post then  checks Db for post name. If post name is empty then sanititize page title. If post name and post title both are empty then use post id
      Add resultant of above as a Query param 'url' to preview link of post.
     */
    $pname = $post->post_name;
    if (in_array($post->post_status, array('draft', 'pending', 'auto-draft'))) {
        $pname = sanitize_title($post->post_name ? $post->post_name : $post->post_title, $post->ID);
    }

    $query_args = array();
    $query_args['url'] = $pname;
    $preview_link = add_query_arg($query_args, $preview_link);
    return $preview_link;
}

add_filter('preview_post_link', 'custom_preview_post_link', 10, 2);
add_filter('preview_page_link', 'custom_preview_post_link', 10, 2);