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<?php
function menu_trail() {
global $QUERY_STRING;
static $trail = NULL;
/*
** Retrieve the currently active link.
*/
if (empty($trail)) {
$path = array();
$item = db_fetch_object(db_query("SELECT * FROM menu WHERE link LIKE '%%%s'", $QUERY_STRING));
/*
** Compile an array of menu objects that represent the path to
** the root link.
*/
if ($item) {
$path[] = $item;
while ($item->parent) {
$result = db_query("SELECT * FROM menu WHERE name = '%s' ORDER BY weight, name", $item->parent);
if ($item = db_fetch_object($result)) {
$path[] = $item;
}
}
}
$trail = array_reverse($path);
}
return $trail;
}
function menu_in_trail($item) {
$trail = menu_trail();
foreach ($trail as $menu) {
if ($menu->link == $item->link) {
return 1;
}
}
return 0;
}
function menu_item($item) {
/*
** If you want to theme your links, or if you want to replace them
** by an image, this would be the function to customize.
*/
if (stristr(request_uri(), $item->link) == $item->link) {
return t($item->name);
}
else if ($item->title) {
return "<a href=\"$item->link\" title=\"". t($item->title) ."\">". t($item->name) ."</a>";
}
else {
return "<a href=\"$item->link\">". t($item->name) ."</a>";
}
}
function menu_path() {
$path = menu_trail();
$links = array();
foreach ($path as $item) {
$links[] = menu_item($item);
}
return implode(" > ", $links);
}
function menu_menu_row($parent = "") {
$links = array();
$result = db_query("SELECT * FROM menu WHERE parent = '%s' ORDER BY weight, name", $parent);
while ($menu = db_fetch_object($result)) {
$links[] = menu_item($menu);
}
return $links;
}
function menu_menu() {
$path = menu_trail();
if ($path) {
$item = array_pop($path);
$output = implode(" · ", menu_menu_row($item->name));
}
return $output;
}
function menu_help() {
$path = menu_trail();
if ($path) {
$item = array_pop($path);
$output = $item->help;
}
return $output;
}
function menu_tree($parent = "", $all = 1) {
if ($all) {
$result = db_query("SELECT * FROM menu WHERE parent = '%s' ORDER BY weight, name", $parent);
}
if (db_num_rows($result)) {
$output = "<ul>";
while ($item = db_fetch_object($result)) {
$all = (stristr(request_uri(), $item->link) == $item->link) ? 1 : 0;
$output .= "<li>". menu_item($item) ."</li>";
$output .= menu_tree($item->name, menu_in_trail($item));
}
$output .= "</ul>";
}
return $output;
}
function menu_add($name, $link, $title = NULL, $help = NULL, $parent = NULL, $weight = 1) {
if (!db_result(db_query("SELECT name FROM menu WHERE link = '%s'", $link))) {
db_query("INSERT INTO menu (name, link, title, help, parent, weight) VALUES ('%s', '%s', '%s', '%s', '%s', '%d')", $name, $link, $title, $help, $parent, $weight);
}
}
?>
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