Enzymind Labs

The current release of the booktree module is located here.

This is the code for the Drupal 5.1.2 booktree module:

<?php
// $Id: booktree.module,v 1.6 2007/02/09 11:58:44 uccio Exp $
// Tested with drupal 5.0.b2 over IIS with PHP 4 and Mysql 4.18nt

function booktree_help($section) {
switch ($section) {
case 'admin/modules#description':
// This description is shown in the listing at admin/modules.
return t('This module create a tree rappresentation of one book');
case 'booktree':
// Here is some help text for a custom page.
return t('A tree index of book.');
}
}


function booktree_perm() {
return array('access booktree');
}


function booktree_menu($may_cache) {
$items = array();

if ($may_cache) {
$items[] = array('path' => 'booktree', 'title' => t('booktree'),
'callback' => 'booktree_indice',
'access' => user_access('access booktree'));

$items[] = array('path' => 'admin/settings/booktree',
'title' => t('Settings of BookTree'),
'type' => MENU_NORMAL_ITEM,
'description' => t('Manage the tree-view of book.'),
'callback' => 'drupal_get_form',
'callback arguments' => array('booktree_configure'),
'access' => user_access('administer site configuration'),
'weight' => 2,
);

}

return $items;
}


function booktree_configure() {
$form = array();
$form['booktree_start'] = array(
'#type' => 'textfield',
'#title' => t('Root Node ID'),
'#required' => TRUE,
'#default_value' => variable_get('booktree_start', 15),
'#description' => t('Start point of the tree (the root).')

);

$form['booktree_deep'] = array(
'#type' => 'textfield',
'#title' => t('Deep Max'),
'#required' => TRUE,
'#default_value' => variable_get('booktree_deep', 5),
'#description' => t('Max deep of the tree with the root.')

);
$form['booktree_trim'] = array(
'#type' => 'textfield',
'#title' => t('Trimmer'),
'#required' => TRUE,
'#default_value' => variable_get('booktree_trim', 5),
'#description' => t('Max lenght of title.')

);
return system_settings_form($form);





}




function booktree_indice() {
$node = node_load(array('nid' =>variable_get('booktree_start', 1)));
$content = "<p>$node->body</p>";
$content .="<ul>\n";
$children = db_query(db_rewrite_sql('SELECT distinct n.nid, b.weight, n.title FROM {node} n INNER JOIN {book} b ON n.nid = b.nid WHERE b.parent = %d ORDER BY b.weight, n.title'), $node->nid);
$ricursione=1;
$maxricursione=variable_get('booktree_deep', 5)+2;
$trimval=variable_get('booktree_trim', 35);
$content .= booktree_mostra_figli($node->nid,$node->title,$ricursione,$maxricursione,$trimval);
print theme('page', $content);



}

function booktree_mostra_figli( $nid,$tit,$ricursione,$maxricursione,$trimval ) {
if ($ricursione<$maxricursione)
{
$children = db_query(db_rewrite_sql('SELECT distinct n.nid, b.weight, n.title FROM {node} n INNER JOIN {book} b ON n.nid = b.nid WHERE b.parent = %d ORDER BY b.weight, n.title'), $nid);
$content .= "<li>" . l(truncate_utf8($tit, $trimval, TRUE, TRUE),'node/'.$nid , $attributes = array(), $query = NULL, $fragment = NULL, $absolute = FALSE, $html = FALSE ) ."</li>";
$content .="<ul>\n";
$ricursione++;
while ($child = db_fetch_object($children)) {
$content .= booktree_mostra_figli($child->nid,$child->title,$ricursione,$maxricursione,$trimval);}
$content .="</ul>\n";
return $content;}
else {
return '';
}
}
?>