API docs:
https://api.drupal.org/api/drupal/core!modules!node!src!Hook!NodeTokensHooks.php/11.3.x
Location: /core/modules/node/src/Hook/NodeTokensHooks.php
namespace Drupal\node\Hook;
use Drupal\Core\Datetime\Entity\DateFormat;
use Drupal\Core\StringTranslation\StringTranslationTrait;
use Drupal\user\Entity\User;
use Drupal\Core\Language\LanguageInterface;
use Drupal\Core\Render\BubbleableMetadata;
use Drupal\Core\Hook\Attribute\Hook;
/**
* Token hook implementations for node.
*/
class NodeTokensHooks {
use StringTranslationTrait;
/**
* Implements hook_token_info().
*/
#[Hook('token_info')]
public function tokenInfo(): array {
$type = [
'name' => $this->t('Nodes'),
'description' => $this->t('Tokens related to individual content items, or "nodes".'),
'needs-data' => 'node',
];
// Core tokens for nodes.
$node['nid'] = [
'name' => $this->t("Content ID"),
'description' => $this->t('The unique ID of the content item, or "node".'),
];
$node['uuid'] = [
'name' => $this->t('UUID'),
'description' => $this->t('The UUID of the content item, or "node".'),
];
$node['vid'] = [
'name' => $this->t("Revision ID"),
'description' => $this->t("The unique ID of the node's latest revision."),
];
$node['type'] = ['name' => $this->t("Content type")];
$node['type-name'] = [
'name' => $this->t("Content type name"),
'description' => $this->t("The human-readable name of the node type."),
];
$node['title'] = ['name' => $this->t("Title")];
$node['body'] = ['name' => $this->t("Body"), 'description' => $this->t("The main body text of the node.")];
$node['summary'] = [
'name' => $this->t("Summary"),
'description' => $this->t("The summary of the node's main body text."),
];
$node['langcode'] = [
'name' => $this->t('Language code'),
'description' => $this->t('The language code of the language the node is written in.'),
];
$node['published_status'] = [
'name' => $this->t('Published'),
'description' => $this->t('The publication status of the node ("Published" or "Unpublished").'),
];
$node['url'] = ['name' => $this->t("URL"), 'description' => $this->t("The URL of the node.")];
$node['edit-url'] = ['name' => $this->t("Edit URL"), 'description' => $this->t("The URL of the node's edit page.")];
// Chained tokens for nodes.
$node['created'] = ['name' => $this->t("Date created"), 'type' => 'date'];
$node['changed'] = [
'name' => $this->t("Date changed"),
'description' => $this->t("The date the node was most recently updated."),
'type' => 'date',
];
$node['author'] = ['name' => $this->t("Author"), 'type' => 'user'];
return ['types' => ['node' => $type], 'tokens' => ['node' => $node]];
}
/**
* Implements hook_tokens().
*/
#[Hook('tokens')]
public function tokens($type, $tokens, array $data, array $options, BubbleableMetadata $bubbleable_metadata): array {
$token_service = \Drupal::token();
$url_options = ['absolute' => TRUE];
if (isset($options['langcode'])) {
$url_options['language'] = \Drupal::languageManager()->getLanguage($options['langcode']);
$langcode = $options['langcode'];
}
else {
$langcode = LanguageInterface::LANGCODE_DEFAULT;
}
$replacements = [];
if ($type == 'node' && !empty($data['node'])) {
/** @var \Drupal\node\NodeInterface $node */
$node = $data['node'];
foreach ($tokens as $name => $original) {
switch ($name) {
// Simple key values on the node.
case 'nid':
$replacements[$original] = $node->id();
break;
case 'uuid':
$replacements[$original] = $node->uuid();
break;
case 'vid':
$replacements[$original] = $node->getRevisionId();
break;
case 'type':
$replacements[$original] = $node->getType();
break;
case 'type-name':
$type_name = $node->getBundleEntity()->label();
$replacements[$original] = $type_name;
break;
case 'title':
$replacements[$original] = $node->getTitle();
break;
case 'body':
case 'summary':
$translation = \Drupal::service('entity.repository')->getTranslationFromContext($node, $langcode, ['operation' => 'node_tokens']);
if ($translation->hasField('body') && ($items = $translation->get('body')) && !$items->isEmpty()) {
$item = $items[0];
// If the summary was requested and is not empty, use it.
if ($name == 'summary' && !empty($item->summary)) {
$output = $item->summary_processed;
}
else {
$output = $item->processed;
// A summary was requested.
if ($name == 'summary') {
// Generate an optionally trimmed summary of the body field.
// Get the 'trim_length' size used for the 'teaser' mode, if
// present, or use the default trim_length size.
$display_options = \Drupal::service('entity_display.repository')->getViewDisplay('node', $node->getType(), 'teaser')->getComponent('body');
if (isset($display_options['settings']['trim_length'])) {
$length = $display_options['settings']['trim_length'];
}
else {
$settings = \Drupal::service('plugin.manager.field.formatter')->getDefaultSettings('text_summary_or_trimmed');
$length = $settings['trim_length'];
}
$output = text_summary($output, $item->format, $length);
}
}
// "processed" returns a \Drupal\Component\Render\MarkupInterface
// via check_markup().
$replacements[$original] = $output;
}
break;
case 'langcode':
$replacements[$original] = $node->language()->getId();
break;
case 'published_status':
$replacements[$original] = $node->isPublished() ? $this->t('Published') : $this->t('Unpublished');
break;
case 'url':
$replacements[$original] = $node->toUrl('canonical', $url_options)->toString();
break;
case 'edit-url':
$replacements[$original] = $node->toUrl('edit-form', $url_options)->toString();
break;
// Default values for the chained tokens handled below.
case 'author':
$account = $node->getOwner() ?: User::load(0);
$bubbleable_metadata->addCacheableDependency($account);
$replacements[$original] = $account->label();
break;
case 'created':
$date_format = DateFormat::load('medium');
$bubbleable_metadata->addCacheableDependency($date_format);
$replacements[$original] = \Drupal::service('date.formatter')->format($node->getCreatedTime(), 'medium', '', NULL, $langcode);
break;
case 'changed':
$date_format = DateFormat::load('medium');
$bubbleable_metadata->addCacheableDependency($date_format);
$replacements[$original] = \Drupal::service('date.formatter')->format($node->getChangedTime(), 'medium', '', NULL, $langcode);
break;
}
}
if ($author_tokens = $token_service->findWithPrefix($tokens, 'author')) {
$replacements += $token_service->generate('user', $author_tokens, ['user' => $node->getOwner()], $options, $bubbleable_metadata);
}
if ($created_tokens = $token_service->findWithPrefix($tokens, 'created')) {
$replacements += $token_service->generate('date', $created_tokens, ['date' => $node->getCreatedTime()], $options, $bubbleable_metadata);
}
if ($changed_tokens = $token_service->findWithPrefix($tokens, 'changed')) {
$replacements += $token_service->generate('date', $changed_tokens, ['date' => $node->getChangedTime()], $options, $bubbleable_metadata);
}
}
return $replacements;
}
}