hook_tokens_alter(array &$replacements, array $context, \Drupal\Core\Render\BubbleableMetadata $bubbleable_metadata)
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 $bubbleable_metadata.
See also
Related topics
- Hooks
- Define functions that alter the behavior of Drupal core.
File
- core/lib/Drupal/Core/Utility/token.api.php, line 151
- Hooks related to the Token system.
Code
function hook_tokens_alter(array &$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_render($title);
}
}
}
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