tagadelic_taxonomy.module

<?php
/**
 * @file tagadelic.module
 * Library to build tagclouds.
 * @author Bèr Kessels <ber@webschuur.com>
 * @link http://berk.es
 */

/**
 * Implements hook_menu().
 * @see hook_menu()
 */
function tagadelic_taxonomy_menu() {
  $items['tagadelic_taxonomy'] = array(
    'title' => 'Tag Cloud',
    'page callback' => 'tagadelic_taxonomy_cloud',
    'access callback' => TRUE,
    'expanded' => TRUE,
  );
  return $items;
}

/**
 * Constructs a simple page.
 */
function tagadelic_taxonomy_cloud() {
  $cloud = new TagadelicCloud("tagadalic_taxonomy");

  foreach (tagadelic_taxonomy_get_tags(60) as $term) {
    $tag = new TagadelicTag($term->tid, $term->name, $term->count);
    $tag->set_link("taxonomy/term/{$term->tid}");

    $cloud->add_tag($tag);
  }

  return theme("tagadelic_taxonomy_cloud", array("tags" => $cloud->get_tags()));
}

function tagadelic_taxonomy_theme($existing, $type, $theme, $path) {
  return array(
    "tagadelic_taxonomy_cloud" => array(
      "variables" => array(
        "tags" => array(),
        "name" => "",
      ),
      "path" => "{$path}/templates",
      "template" => "tagadelic_taxonomy_cloud"
    ), // tagadelic_taxonomy_cloud

  );
}

function tagadelic_taxonomy_get_tags($max_amount) {
  $tags = array();

  $query = db_select('taxonomy_index', 'i');

  $alias = $query->leftjoin('taxonomy_term_data', 't', '%alias.tid = i.tid');

  $query->addExpression('COUNT(i.nid)', 'count');
  $query->addField($alias, 'tid');
  $query->addField($alias, 'name');
  $query->addField($alias, 'description');

  $query->range(0, $max_amount)
    ->groupBy("i.tid");

  return $query->execute();
}