wp_check_post_hierarchy_for_loops()
Checks the given subset of the post hierarchy for hierarchy loops.
Prevents loops from forming and breaks those that it finds. Attached to the wp_insert_post_parent filter.
Хуков нет.
Возвращает
int
. The new post_parent for the post, 0 otherwise.
Использование
wp_check_post_hierarchy_for_loops( $post_parent, $post_id );
- $post_parent(int) (обязательный)
- ID of the parent for the post we're checking.
- $post_id(int) (обязательный)
- ID of the post we're checking.
Заметки
- Смотрите: wp_find_hierarchy_loop()
Список изменений
С версии 3.1.0 | Введена. |
Код wp_check_post_hierarchy_for_loops() wp check post hierarchy for loops WP 6.5.2
function wp_check_post_hierarchy_for_loops( $post_parent, $post_id ) { // Nothing fancy here - bail. if ( ! $post_parent ) { return 0; } // New post can't cause a loop. if ( ! $post_id ) { return $post_parent; } // Can't be its own parent. if ( $post_parent == $post_id ) { return 0; } // Now look for larger loops. $loop = wp_find_hierarchy_loop( 'wp_get_post_parent_id', $post_id, $post_parent ); if ( ! $loop ) { return $post_parent; // No loop. } // Setting $post_parent to the given value causes a loop. if ( isset( $loop[ $post_id ] ) ) { return 0; } // There's a loop, but it doesn't contain $post_id. Break the loop. foreach ( array_keys( $loop ) as $loop_member ) { wp_update_post( array( 'ID' => $loop_member, 'post_parent' => 0, ) ); } return $post_parent; }