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Don't split shared terms on term update.

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Splitting shared terms means assigning a new term_id to a given term_taxonomy_id.
It was uncovered that this change could cause problems for sites that have
cached the original term_id somehow - say, in postmeta - since future lookups
using that term_id will now fail.

Removing for 4.1-beta1. We'll look at improvements to backward compatibility
to try to get this back into a later beta.

Props mboynes.
See #30335.
Built from https://develop.svn.wordpress.org/trunk@30336


git-svn-id: http://core.svn.wordpress.org/trunk@30335 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Boone Gorges 2014-11-13 20:05:24 +00:00
parent 8fb6f317ff
commit eb8f89bb13
2 changed files with 1 additions and 63 deletions
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62
wp-includes/taxonomy.php
View File

@ -3386,12 +3386,6 @@ function wp_update_term( $term_id, $taxonomy, $args = array() ) {
$tt_id = $wpdb->get_var( $wpdb->prepare( "SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE tt.taxonomy = %s AND t.term_id = %d", $taxonomy, $term_id) );
// Check whether this is a shared term that needs splitting.
$_term_id = _split_shared_term( $term_id, $tt_id );
if ( ! is_wp_error( $_term_id ) ) {
$term_id = $_term_id;
}
/**
* Fires immediately before the given terms are edited.
*
@ -4045,62 +4039,6 @@ function _update_generic_term_count( $terms, $taxonomy ) {
}
}
/**
* Create a new term for a term_taxonomy item that currently shares its term.
*
* @since 4.1.0
* @access private
*
* @param int $term_id ID of the shared term.
* @param int $term_taxonomy_id ID of the term taxonomy item to receive a new term.
* @param array $shared_tts Sibling term taxonomies, used for busting caches.
* @return int Term ID.
*/
function _split_shared_term( $term_id, $term_taxonomy_id ) {
global $wpdb;
// Don't try to split terms if database schema does not support shared slugs.
$current_db_version = get_option( 'db_version' );
if ( $current_db_version < 30133 ) {
return $term_id;
}
// If there are no shared term_taxonomy rows, there's nothing to do here.
$shared_tt_count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_taxonomy tt WHERE tt.term_id = %d AND tt.term_taxonomy_id != %d", $term_id, $term_taxonomy_id ) );
if ( ! $shared_tt_count ) {
return $term_id;
}
// Pull up data about the currently shared slug, which we'll use to populate the new one.
$shared_term = $wpdb->get_row( $wpdb->prepare( "SELECT t.* FROM $wpdb->terms t WHERE t.term_id = %d", $term_id ) );
$new_term_data = array(
'name' => $shared_term->name,
'slug' => $shared_term->slug,
'term_group' => $shared_term->term_group,
);
if ( false === $wpdb->insert( $wpdb->terms, $new_term_data ) ) {
return new WP_Error( 'db_insert_error', __( 'Could not split shared term.' ), $wpdb->last_error );
}
$new_term_id = (int) $wpdb->insert_id;
// Update the existing term_taxonomy to point to the newly created term.
$wpdb->update( $wpdb->term_taxonomy,
array( 'term_id' => $new_term_id ),
array( 'term_taxonomy_id' => $term_taxonomy_id )
);
// Clean the cache for term taxonomies formerly shared with the current term.
$shared_term_taxonomies = $wpdb->get_row( $wpdb->prepare( "SELECT taxonomy FROM $wpdb->term_taxonomy WHERE term_id = %d", $term_id ) );
foreach ( (array) $shared_term_taxonomies as $shared_term_taxonomy ) {
clean_term_cache( $term_id, $shared_term_taxonomy );
}
return $new_term_id;
}
/**
* Generate a permalink for a taxonomy term archive.
*

2
wp-includes/version.php
View File

@ -4,7 +4,7 @@
*
* @global string $wp_version
*/
$wp_version = '4.1-alpha-30335';
$wp_version = '4.1-alpha-30336';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.