Changeset 43492 for branches/4.9/src/wp-includes/class-wp-term-query.php

Timestamp:

07/17/2018 04:27:12 PM (2 years ago)

Author:

SergeyBiryukov

Message:

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.

Location:

branches/4.9

Files:

• . (modified) (1 prop)
• src/wp-includes/class-wp-term-query.php (modified) (3 diffs)

branches/4.9/src/wp-includes/class-wp-term-query.php

@@ -673 +673 @@
         if ( false !== $cache ) {
             if ( 'all' === $_fields || 'all_with_object_id' === $_fields ) {
-                $cache = array_map( 'get_term', $cache );
+                $cache = $this->populate_terms( $cache );
             }
 
@@ -805 +805 @@
 
         if ( 'all' === $_fields || 'all_with_object_id' === $_fields ) {
-            $terms = array_map( 'get_term', $terms );
+            $terms = $this->populate_terms( $terms );
         }
 
@@ -967 +967 @@
         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;
+    }
 }