function _book_update_outline

Common helper function to handles additions and updates to the book outline.

Performs all additions and updates to the book outline through node addition, node editing, node deletion, or the outline tab.

File

modules/book/book.module, line 438

Allows users to structure the pages of a site in a hierarchy or outline.

Code

function _book_update_outline(&$node) {
  if (empty($node->book['bid'])) {
    return FALSE;
  }
  $new = empty($node->book['mlid']);
  $node->book['link_path'] = 'node/' . $node->nid;
  $node->book['link_title'] = $node->title;
  $node->book['parent_mismatch'] = FALSE;

  // The normal case.
  if ($node->book['bid'] == $node->nid) {
    $node->book['plid'] = 0;
    $node->book['menu_name'] = book_menu_name($node->nid);
  }
  else {

    // Check in case the parent is not is this book; the book takes precedence.
    if (!empty($node->book['plid'])) {
      $parent = db_fetch_array(db_query("SELECT * FROM {book} WHERE mlid = %d", $node->book['plid']));
    }
    if (empty($node->book['plid']) || !$parent || $parent['bid'] != $node->book['bid']) {
      $node->book['plid'] = db_result(db_query("SELECT mlid FROM {book} WHERE nid = %d", $node->book['bid']));
      $node->book['parent_mismatch'] = TRUE;

      // Likely when JS is disabled.
    }
  }
  if (menu_link_save($node->book)) {
    if ($new) {

      // Insert new.
      db_query("INSERT INTO {book} (nid, mlid, bid) VALUES (%d, %d, %d)", $node->nid, $node->book['mlid'], $node->book['bid']);
    }
    else {
      if ($node->book['bid'] != db_result(db_query("SELECT bid FROM {book} WHERE nid = %d", $node->nid))) {

        // Update the bid for this page and all children.
        book_update_bid($node->book);
      }
    }
    return TRUE;
  }

  // Failed to save the menu link
  return FALSE;
}