Информация. Содержание книги — 1

Источник: 
Creating a TOC for a book

Стандартный код из модуля Book, только названия страниц книг показываются развёрнутыми.

<?php
function book_tree_recurse_all($nid, $depth, $children) {
  if ($depth > 0) {
    if ($children[$nid]) {
      foreach ($children[$nid] as $foo => $node) {

          if ($tree = book_tree_recurse_all($node->nid, $depth - 0, $children)) {
            $output .= '<li class="expanded">';
            $output .= l($node->title, 'node/'. $node->nid);
            $output .= '<ul>'. $tree .'</ul>';
            $output .= '</li>';
          }
          else {
            $output .= '<li class="leaf">'. l($node->title, 'node/'. $node->nid) .'</li>';
          }
      }
    }
  }

  return $output;
}
function book_tree_expanded($parent = 0, $depth = 3) {
$result = db_query(db_rewrite_sql('SELECT n.nid, n.title, b.parent, b.weight FROM {node} n INNER JOIN {book} b ON n.nid = b.nid AND n.vid = b.vid WHERE n.status = 1 AND n.moderate = 0 ORDER BY b.weight, n.title'));

  while ($node = db_fetch_object($result)) {
    $list = $children[$node->parent] ? $children[$node->parent] : array();
    array_push($list, $node);
    $children[$node->parent] = $list;
  }

  if ($tree = book_tree_recurse_all($parent, $depth, $children)) {
    return '<div class="menu"><ul>'. $tree .'</ul></div>';
  }
}
print book_tree_expanded(0);
?>

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