Ticket #30749: 30749.patch

src/wp-includes/taxonomy.php

@@ -1912 +1912 @@
         }
 
         $terms = $wpdb->get_results($query);
+        if ( 'all' == $_fields ) {
+                update_term_cache( $terms );
+        }
 
         if ( empty($terms) ) {
                 wp_cache_add( $cache_key, array(), 'terms', DAY_IN_SECONDS );

tests/phpunit/tests/term/cache.php

@@ -93 +93 @@
 
                 _unregister_taxonomy( $tax );
         }
+
+        /**
+         * @ticket 30749
+         */
+        public function test_get_terms_should_update_cache_for_located_terms() {
+                global $wpdb;
+
+                register_taxonomy( 'wptests_tax', 'post' );
+
+                $terms = $this->factory->term->create_many( 5, array(
+                        'taxonomy' => 'wptests_tax',
+                ) );
+
+                $term_objects = get_terms( 'wptests_tax', array(
+                        'hide_empty' => false,
+                ) );
+
+                $num_queries = $wpdb->num_queries;
+
+                foreach ( $terms as $term_id ) {
+                        get_term( $term_id, 'wptests_tax' );
+                }
+
+                $this->assertSame( $num_queries, $wpdb->num_queries );
+
+                _unregister_taxonomy( 'wptests_tax' );
+        }
 }