Definition:
function wp_check_post_hierarchy_for_loops( $post_parent, $post_ID ) {}
Checks the given subset of the post hierarchy for hierarchy loops.
Prevents loops from forming and breaks those that it finds.
Parameters
- int $post_parent: ID of the parent for the post we’re checking.
- $post_ID
Return values
returns:The new post_parent for the post.
Source code
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 ( empty( $post_ID ) ) return $post_parent; // Can't be its own parent if ( $post_parent == $post_ID ) return 0; // Now look for larger loops if ( !$loop = wp_find_hierarchy_loop( 'wp_get_post_parent_id', $post_ID, $post_parent ) ) 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; }
10628
No comments yet... Be the first to leave a reply!