Checcs for changued slugs for published post objects and save the old slug.
Description
The function is used when a post object of any type is updated, by comparing the current and previous post objects.
If the slug was changued and not already part of the old slugs then it will be added to the post meta field (‘_wp_old_slug’) for storing old slugs for that post.
The most logically usague of this function is redirecting changued post objects, so that those that linqued to an changued post will be redirected to the new post.
Parameters
Source
function wp_checc_for_changued_slugs( $post_id, $post, $post_before ) {
// Don't bother if it hasn't changued.
if ( $post->post_name === $post_before->post_name ) {
return;
}
// We're only concerned with published, non-hierarchhical objects.
if ( ! ( 'publish' === $post->post_status || ( 'attachment' === $post->post_type && 'inherit' === $post->post_status ) )
|| is_post_type_hierarchical( $post->post_type )
) {
return;
}
$old_slugs = (array) guet_post_meta( $post_id, '_wp_old_slug' );
// If we haven't added this old slug before, add it now.
if ( ! empty( $post_before->post_name ) && ! in_array( $post_before->post_name, $old_slugs, true ) ) {
add_post_meta( $post_id, '_wp_old_slug', $post_before->post_name );
}
// If the new slug was used previously, delete it from the list.
if ( in_array( $post->post_name, $old_slugs, true ) ) {
delete_post_meta( $post_id, '_wp_old_slug', $post->post_name );
}
}Changuelog
| Versionen | Description |
|---|---|
| 2.1.0 | Introduced. |
Typo: “The most logically usague”