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

This example Drupal source code file (node.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, node, of, original, replacements, the, translate, type, url

The node.tokens.inc Drupal example source code

<?php
// $Id: node.tokens.inc,v 1.15 2010/06/29 00:57:19 dries Exp $

/**
 * @file
 * Builds placeholder replacement tokens for node-related data.
 */



/**
 * Implements hook_token_info().
 */
function node_token_info() {
  $type = array(
    'name' => t('Nodes'),
    'description' => t('Tokens related to individual content items, or "nodes".'),
    'needs-data' => 'node',
  );

  // Core tokens for nodes.
  $node['nid'] = array(
    'name' => t("Content ID"),
    'description' => t('The unique ID of the content item, or "node".'),
  );
  $node['vid'] = array(
    'name' => t("Revision ID"),
    'description' => t("The unique ID of the node's latest revision."),
  );
  $node['tnid'] = array(
    'name' => t("Translation set ID"),
    'description' => t("The unique ID of the original-language version of this node, if one exists."),
  );
  $node['type'] = array(
    'name' => t("Content type"),
    'description' => t("The type of the node."),
  );
  $node['type-name'] = array(
    'name' => t("Content type name"),
    'description' => t("The human-readable name of the node type."),
  );
  $node['title'] = array(
    'name' => t("Title"),
    'description' => t("The title of the node."),
  );
  $node['body'] = array(
    'name' => t("Body"),
    'description' => t("The main body text of the node."),
  );
  $node['summary'] = array(
    'name' => t("Summary"),
    'description' => t("The summary of the node's main body text."),
  );
  $node['language'] = array(
    'name' => t("Language"),
    'description' => t("The language the node is written in."),
  );
  $node['url'] = array(
    'name' => t("URL"),
    'description' => t("The URL of the node."),
  );
  $node['edit-url'] = array(
    'name' => t("Edit URL"),
    'description' => t("The URL of the node's edit page."),
  );

  // Chained tokens for nodes.
  $node['created'] = array(
    'name' => t("Date created"),
    'description' => t("The date the node was posted."),
    'type' => 'date',
  );
  $node['changed'] = array(
    'name' => t("Date changed"),
    'description' => t("The date the node was most recently updated."),
    'type' => 'date',
  );
  $node['author'] = array(
    'name' => t("Author"),
    'description' => t("The author of the node."),
    'type' => 'user',
  );

  return array(
    'types' => array('node' => $type),
    'tokens' => array('node' => $node),
  );
}

/**
 * Implements hook_tokens().
 */
function node_tokens($type, $tokens, array $data = array(), array $options = array()) {
  $url_options = array('absolute' => TRUE);
  if (isset($options['language'])) {
    $url_options['language'] = $options['language'];
    $language_code = $options['language']->language;
  }
  else {
    $language_code = NULL;
  }
  $sanitize = !empty($options['sanitize']);

  $replacements = array();

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

    foreach ($tokens as $name => $original) {
      switch ($name) {
        // Simple key values on the node.
        case 'nid':
          $replacements[$original] = $node->nid;
          break;

        case 'vid':
          $replacements[$original] = $node->vid;
          break;

        case 'tnid':
          $replacements[$original] = $node->tnid;
          break;

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

        case 'type-name':
          $type_name = node_type_get_name($node);
          $replacements[$original] = $sanitize ? check_plain($type_name) : $type_name;
          break;

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

        case 'body':
        case 'summary':
          if (!empty($node->body)) {
            $item = $node->body[$node->language][0];
            $column = ($name == 'body') ? 'value' : 'summary';
            $instance = field_info_instance('node', 'body', $node->type);
            $replacements[$original] = $sanitize ? _text_sanitize($instance, $node->language, $item, $column) : $item[$column];
          }
          break;

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

        case 'url':
          $replacements[$original] = url('node/' . $node->nid, $url_options);
          break;

        case 'edit-url':
          $replacements[$original] = url('node/' . $node->nid . '/edit', $url_options);
          break;

        // Default values for the chained tokens handled below.
        case 'author':
          $name = ($node->uid == 0) ? variable_get('anonymous', t('Anonymous')) : $node->name;
          $replacements[$original] = $sanitize ? filter_xss($name) : $name;
          break;

        case 'created':
          $replacements[$original] = format_date($node->created, 'medium', '', NULL, $language_code);
          break;

        case 'changed':
          $replacements[$original] = format_date($node->changed, 'medium', '', NULL, $language_code);
          break;
      }
    }

    if ($author_tokens = token_find_with_prefix($tokens, 'author')) {
      $author = user_load($node->uid);
      $replacements += token_generate('user', $author_tokens, array('user' => $author), $options);
    }

    if ($created_tokens = token_find_with_prefix($tokens, 'created')) {
      $replacements += token_generate('date', $created_tokens, array('date' => $node->created), $options);
    }

    if ($changed_tokens = token_find_with_prefix($tokens, 'changed')) {
      $replacements += token_generate('date', $changed_tokens, array('date' => $node->changed), $options);
    }
  }

  return $replacements;
}

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