Taxonomy: Ensure that invalid term objects are discarded in `WP_Term_Query`.

The `get_term()` mapping may result in term objects that are `null` or
`WP_Error` when plugins use `get_term` or a related filter. Since `null`
and error objects are not valid results for a term query, we discard
them.

Props GM_Alex.
Merges [43049] and [43491] to the 4.9 branch.
Fixes #42691.
Built from https://develop.svn.wordpress.org/branches/4.9@43492


git-svn-id: http://core.svn.wordpress.org/branches/4.9@43319 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Sergey Biryukov 2018-07-17 16:28:25 +00:00
parent 63779784f3
commit 1f1b7df292
2 changed files with 30 additions and 3 deletions

View File

@ -672,7 +672,7 @@ class WP_Term_Query {
$cache = wp_cache_get( $cache_key, 'terms' );
if ( false !== $cache ) {
if ( 'all' === $_fields || 'all_with_object_id' === $_fields ) {
$cache = array_map( 'get_term', $cache );
$cache = $this->populate_terms( $cache );
}
$this->terms = $cache;
@ -804,7 +804,7 @@ class WP_Term_Query {
wp_cache_add( $cache_key, $terms, 'terms', DAY_IN_SECONDS );
if ( 'all' === $_fields || 'all_with_object_id' === $_fields ) {
$terms = array_map( 'get_term', $terms );
$terms = $this->populate_terms( $terms );
}
$this->terms = $terms;
@ -966,4 +966,31 @@ class WP_Term_Query {
return $wpdb->prepare( '((t.name LIKE %s) OR (t.slug LIKE %s))', $like, $like );
}
/**
* Creates an array of term objects from an array of term IDs.
*
* Also discards invalid term objects.
*
* @since 4.9.8
*
* @param array $term_ids Term IDs.
* @return array
*/
protected function populate_terms( $term_ids ) {
$terms = array();
if ( ! is_array( $term_ids ) ) {
return $terms;
}
foreach ( $term_ids as $key => $term_id ) {
$term = get_term( $term_id );
if ( $term instanceof WP_Term ) {
$terms[ $key ] = $term;
}
}
return $terms;
}
}

View File

@ -4,7 +4,7 @@
*
* @global string $wp_version
*/
$wp_version = '4.9.8-alpha-43490';
$wp_version = '4.9.8-alpha-43492';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.