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In `wp_insert_term()`, when no slug is provided, check for an existing term by name. If it exists, use that slug instead of calling `sanitize_title( $name )`. 

Prevents creating an endless number of terms like `A+` or `$$$$` in any given taxonomy.

Props wonderboymusic, SergeyBiryukov, aaroncampbell.
Fixes #17689.

Built from https://develop.svn.wordpress.org/trunk@28733


git-svn-id: http://core.svn.wordpress.org/trunk@28547 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Scott Taylor 2014-06-11 02:28:14 +00:00
parent 620e6ebe37
commit 980744f882
1 changed files with 7 additions and 1 deletions
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8
wp-includes/taxonomy.php
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@ -2436,7 +2436,13 @@ function wp_insert_term( $term, $taxonomy, $args = array() ) {
$slug_provided = ! empty( $args['slug'] );
if ( ! $slug_provided ) {
$slug = sanitize_title($name);
$_name = trim( $name );
$existing_term = get_term_by( 'name', $_name, $taxonomy );
if ( $existing_term ) {
$slug = $existing_term->slug;
} else {
$slug = sanitize_title( $name );
}
} else {
$slug = $args['slug'];
}