Drupal trick: Returning a themed menu tree with nothing more than the system path

12.05.2007

I remember something a long time teacher said, "Nick, if you make a suit out of a gorrilla, the arms are too long." I forgot why that was relevent to the topic of theming menu trees.

Moving on, here's a nice little function I wrote to return a themed menu tree by path.

<?php
// will return all menu items under "administration".
print theme('menu_tree_by_path','admin');
// will return links to all node submission forms
print theme('menu_tree_by_path','node/add');
// return the correct menu array by path
function menu_get_mid_by_path($path) {
// oddly, menu_get_item accepts a path, but returns the parent id. 
  $menu = menu_get_item(null, $path);
  if (isset($menu['children'])) {
// so we have to extract the mid for theme_menu_tree from one of the child items 
    if ($pid = end($menu['children'])) {
      $menu = menu_get_item($pid);
      return $menu['pid'];
    }
  }
}
//theme the crap out of it
function theme_menu_tree_by_path($path) {
  if ($mid = menu_get_mid_by_path($path)) { 
    return theme('menu_tree', $mid);
  }
}

// throw a sexy party.... ?>

Nick Lewis's blog

Comments

Tue, 2009-02-17 01:03 — MatG (not verified)

I've stumbled upon this post

I've stumbled upon this post a couple of times from different websites..
I'm looking for a solution to a simple problem in drupal 6, that i just can't fix.

I'm trying to generate a doormat navigation for my website
http://www.welie.com/patterns/showPattern.php?patternID=doormat

using primary links, but for the life of me i can't get anything to display part of the menu tree. i've tried various methods and keep coming up blank. the CSS i can handle no problem.

My primary links are as follows

item 1.0
- item 1.1
- item 1.2
- item 1.3
- item 1.4
item 2.0
- item 2.1
- item 2.2
- item 2.3
- item 2.4
item 3.0
- item 3.1
- item 3.2
- item 3.3
- item 3.4

I can get the primary menu to display the top level hierarchy, but never the expanded list.
any ideas?

Tue, 2009-02-17 01:05 — Nick Lewis