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Drupal example source code file (taxonomy.tokens.inc)

This example Drupal source code file (taxonomy.tokens.inc) is included in the DevDaily.com "Drupal Source Code Warehouse" project. The intent of this project is to help you "Learn Drupal by Example".

PHP - Drupal tags/keywords

array, break, case, description, language, name, original, replacements, taxonomy, term, the, translate, vocabulary

The taxonomy.tokens.inc Drupal example source code

<?php
// $Id: taxonomy.tokens.inc,v 1.10 2010/11/14 00:25:44 dries Exp $

/**
 * @file
 * Builds placeholder replacement tokens for taxonomy terms and vocabularies.
 */

/**
 * Implements hook_token_info().
 */
function taxonomy_token_info() {
  $types['term'] = array(
    'name' => t("Taxonomy terms"),
    'description' => t("Tokens related to taxonomy terms."),
    'needs-data' => 'term',
  );
  $types['vocabulary'] = array(
    'name' => t("Vocabularies"),
    'description' => t("Tokens related to taxonomy vocabularies."),
    'needs-data' => 'vocabulary',
  );

  // Taxonomy term related variables.
  $term['tid'] = array(
    'name' => t("Term ID"),
    'description' => t("The unique ID of the taxonomy term."),
  );
  $term['name'] = array(
    'name' => t("Name"),
    'description' => t("The name of the taxonomy term."),
  );
  $term['description'] = array(
    'name' => t("Description"),
    'description' => t("The optional description of the taxonomy term."),
  );
  $term['node-count'] = array(
    'name' => t("Node count"),
    'description' => t("The number of nodes tagged with the taxonomy term."),
  );
  $term['url'] = array(
    'name' => t("URL"),
    'description' => t("The URL of the taxonomy term."),
  );

  // Taxonomy vocabulary related variables.
  $vocabulary['vid'] = array(
    'name' => t("Vocabulary ID"),
    'description' => t("The unique ID of the taxonomy vocabulary."),
  );
  $vocabulary['name'] = array(
    'name' => t("Name"),
    'description' => t("The name of the taxonomy vocabulary."),
  );
  $vocabulary['description'] = array(
    'name' => t("Description"),
    'description' => t("The optional description of the taxonomy vocabulary."),
  );
  $vocabulary['node-count'] = array(
    'name' => t("Node count"),
    'description' => t("The number of nodes tagged with terms belonging to the taxonomy vocabulary."),
  );
  $vocabulary['term-count'] = array(
    'name' => t("Term count"),
    'description' => t("The number of terms belonging to the taxonomy vocabulary."),
  );

  // Chained tokens for taxonomies
  $term['vocabulary'] = array(
    'name' => t("Vocabulary"),
    'description' => t("The vocabulary the taxonomy term belongs to."),
    'type' => 'vocabulary',
  );
  $term['parent'] = array(
    'name' => t("Parent term"),
    'description' => t("The parent term of the taxonomy term, if one exists."),
    'type' => 'term',
  );

  return array(
    'types' => $types,
    'tokens' => array(
      'term' => $term,
      'vocabulary' => $vocabulary,
    ),
  );
}

/**
 * Implements hook_tokens().
 */
function taxonomy_tokens($type, $tokens, array $data = array(), array $options = array()) {
  $replacements = array();
  $sanitize = !empty($options['sanitize']);

  if ($type == 'term' && !empty($data['term'])) {
    $term = $data['term'];

    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'tid':
          $replacements[$original] = $term->tid;
          break;

        case 'name':
          $replacements[$original] = $sanitize ? check_plain($term->name) : $term->name;
          break;

        case 'description':
          $replacements[$original] = $sanitize ? check_markup($term->description, $term->format, '', TRUE) : $term->description;
          break;

        case 'url':
          $uri = entity_uri('taxonomy_term', $term);
          $replacements[$original] = url($uri['path'], array_merge($uri['options'], array('absolute' => TRUE)));
          break;

        case 'node-count':
          $query = db_select('taxonomy_index');
          $query->condition('tid', $term->tid);
          $query->addTag('term_node_count');
          $count = $query->countQuery()->execute()->fetchField();
          $replacements[$original] = $count;
          break;

        case 'vocabulary':
          $vocabulary = taxonomy_vocabulary_load($term->vid);
          $replacements[$original] = check_plain($vocabulary->name);
          break;

        case 'parent':
          if ($parents = taxonomy_get_parents($term->tid)) {
            $parent = array_pop($parents);
            $replacements[$original] = check_plain($parent->name);
          }
          break;
      }
    }

    if ($vocabulary_tokens = token_find_with_prefix($tokens, 'vocabulary')) {
      $vocabulary = taxonomy_vocabulary_load($term->vid);
      $replacements += token_generate('vocabulary', $vocabulary_tokens, array('vocabulary' => $vocabulary), $options);
    }

    if (($vocabulary_tokens = token_find_with_prefix($tokens, 'parent')) && $parents = taxonomy_get_parents($term->tid)) {
      $parent = array_pop($parents);
      $replacements += token_generate('term', $vocabulary_tokens, array('term' => $parent), $options);
    }
  }

  elseif ($type == 'vocabulary' && !empty($data['vocabulary'])) {
    $vocabulary = $data['vocabulary'];

    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'vid':
          $replacements[$original] = $vocabulary->vid;
          break;

        case 'name':
          $replacements[$original] = $sanitize ? check_plain($vocabulary->name) : $vocabulary->name;
          break;

        case 'description':
          $replacements[$original] = $sanitize ? filter_xss($vocabulary->description) : $vocabulary->description;
          break;

        case 'term-count':
          $query = db_select('taxonomy_term_data');
          $query->condition('vid', $vocabulary->vid);
          $query->addTag('vocabulary_term_count');
          $count = $query->countQuery()->execute()->fetchField();
          $replacements[$original] = $count;
          break;

        case 'node-count':
          $query = db_select('taxonomy_index', 'ti');
          $query->addExpression('COUNT(DISTINCT ti.nid)');
          $query->leftJoin('taxonomy_term_data', 'td', 'ti.tid = td.tid');
          $query->condition('td.vid', $vocabulary->vid);
          $query->addTag('vocabulary_node_count');
          $count = $query->execute()->fetchField();
          $replacements[$original] = $count;
          break;
      }
    }
  }

  return $replacements;
}

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