我已经为WooCommerce创建的产品帖子类型创建了自定义分类法。我想将这种分类法用于产品的永久链接。

我偶然发现this 这对我想做的事情来说似乎是完美的。然而，我几乎没有运气让它发挥作用。在帖子中添加代码后，我仍然会得到%item%（我正在使用它，而不是%artist%），而不是永久链接中的术语。

<?php
/*
Plugin Name:  Woocommerce Item Taxonomy
Description:  Enables a Taxonomy called "Item" for organizing multiple single products under an unified item.
Version:      1.0.0
License:      MIT License
*/

add_action( \'init\', \'ps_taxonomy_item\' );
function ps_taxonomy_item()  {
  $labels = array(
    \'name\'                       => \'Item\',
    \'singular_name\'              => \'Item\',
    \'menu_name\'                  => \'Item\',
    \'all_items\'                  => \'All Items\',
    \'parent_item\'                => \'Parent Item\',
    \'parent_item_colon\'          => \'Parent Item:\',
    \'new_item_name\'              => \'New Item Name\',
    \'add_new_item\'               => \'Add New Item\',
    \'edit_item\'                  => \'Edit Item\',
    \'update_item\'                => \'Update Item\',
    \'separate_items_with_commas\' => \'Separate Item with commas\',
    \'search_items\'               => \'Search Items\',
    \'add_or_remove_items\'        => \'Add or remove Items\',
    \'choose_from_most_used\'      => \'Choose from the most used Items\',
  );

  $args = array(
    \'labels\'                     => $labels,
    \'hierarchical\'               => true,
    \'public\'                     => true,
    \'show_ui\'                    => true,
    \'show_admin_column\'          => true,
    \'show_in_nav_menus\'          => true,
    \'show_tagcloud\'              => true,
  );

  register_taxonomy( \'item\', \'product\', $args );
  register_taxonomy_for_object_type( \'item\', \'product\' );
}


/**
 * replace the \'%item%\' tag with the first 
 * term slug in the item taxonomy
 * 
 * @wp-hook post_link
 * @param string $permalink
 * @param WP_Post $post
 * @return string
 */
add_filter( \'post_link\', \'wpse_56769_post_link\', 10, 2 );
function wpse_56769_post_link( $permalink, $post ) {
    $default_term = \'no_item\';
    $terms = wp_get_post_terms( $post->ID, \'item\' );

    if ( ! empty( $terms ) && ! is_wp_error( $terms ) )
        $term = current( $terms )->slug;
    else
        $term = $default_term;

    $permalink = str_replace( \'%item%\', $term, $permalink );

    return $permalink;
}


/**
 * set WP_Rewrite::use_verbose_page_rules to TRUE if %item%
 * is used as the first rewrite tag in post permalinks
 * 
 * @wp-hook do_parse_request
 * @wp-hook page_rewrite_rules
 * @global $wp_rewrite
 * @param mixed $pass_through (Unused)
 * @return mixed
 */
function wpse_56769_rewrite_verbose_page_rules( $pass_through = NULL ) {

    $permastruct = $GLOBALS[ \'wp_rewrite\' ]->permalink_structure;
    $permastruct = trim( $permastruct, \'/%\' );
    if ( 0 !== strpos( $permastruct, \'item%\' ) )
        return $pass_through;

    $GLOBALS[ \'wp_rewrite\' ]->use_verbose_page_rules = TRUE;
    return $pass_through;
}
add_filter( \'page_rewrite_rules\', \'wpse_56769_rewrite_verbose_page_rules\', PHP_INT_MAX );
add_filter( \'do_parse_request\',  \'wpse_56769_rewrite_verbose_page_rules\', PHP_INT_MAX );


/**
 * check for existing item and set query to 404 if necessary
 *
 * @wp-hook parse_query
 * @param array $request_vars
 * @return array
 */
function wpse_56769_request_vars( $request_vars ) {

    if ( ! isset( $request_vars[ \'item\' ] ) )
        return $request_vars;

    if ( ! isset( $request_vars[ \'name\' ] ) )
        return $request_vars;

    if ( \'no_item\' == $request_vars[ \'item\' ] )
        unset( $request_vars[ \'item\' ] );

    return $request_vars;
}
add_filter( \'request\', \'wpse_56769_request_vars\' );