function hook_tokens_alter in Drupal 8
Same name and namespace in other branches
- 7 modules/system/system.api.php \hook_tokens_alter()
- 9 core/lib/Drupal/Core/Utility/token.api.php \hook_tokens_alter()
Alter replacement values for placeholder tokens.
Parameters
$replacements: An associative array of replacements returned by hook_tokens().
$context: The context in which hook_tokens() was called. An associative array with the following keys, which have the same meaning as the corresponding parameters of hook_tokens():
- 'type'
- 'tokens'
- 'data'
- 'options'
\Drupal\Core\Render\BubbleableMetadata $bubbleable_metadata: The bubbleable metadata. In case you alter an existing token based upon a data source that isn't in $context['data'], you must add that dependency to $bubbleable_metadata.
See also
Related topics
1 invocation of hook_tokens_alter()
- Token::generate in core/
lib/ Drupal/ Core/ Utility/ Token.php - Generates replacement values for a list of tokens.
File
- core/
lib/ Drupal/ Core/ Utility/ token.api.php, line 151 - Hooks related to the Token system.
Code
function hook_tokens_alter(array &$replacements, array $context, \Drupal\Core\Render\BubbleableMetadata $bubbleable_metadata) {
$options = $context['options'];
if (isset($options['langcode'])) {
$url_options['language'] = \Drupal::languageManager()
->getLanguage($options['langcode']);
$langcode = $options['langcode'];
}
else {
$langcode = NULL;
}
if ($context['type'] == 'node' && !empty($context['data']['node'])) {
$node = $context['data']['node'];
// Alter the [node:title] token, and replace it with the rendered content
// of a field (field_title).
if (isset($context['tokens']['title'])) {
$title = $node->field_title
->view('default');
$replacements[$context['tokens']['title']] = \Drupal::service('renderer')
->render($title);
}
}
}