WebformBubbleableMetadata.php in Webform 8.5
Same filename and directory in other branches
Namespace
Drupal\webform\CacheFile
src/Cache/WebformBubbleableMetadata.phpView source
<?php
namespace Drupal\webform\Cache;
use Drupal\Core\Cache\Cache;
use Drupal\Core\Render\BubbleableMetadata;
/**
* Value object used for bubbleable rendering metadata for webforms.
*/
class WebformBubbleableMetadata extends BubbleableMetadata {
/**
* Appends the values of this bubbleable metadata object to a render array.
*
* We can't use \Drupal\Core\Render\BubbleableMetadata::applyTo because it
* replaces all existing cache contexts and tags.
*
* @param array $build
* A render array
*
* @see \Drupal\Core\Render\BubbleableMetadata::applyTo
* @see \Drupal\webform\WebformSubmissionForm::buildForm
* @see \Drupal\webform\Plugin\WebformElementBase::replaceTokens
*/
public function appendTo(array &$build) {
$contexts = $this
->getCacheContexts();
$tags = $this
->getCacheTags();
$max_age = $this
->getCacheMaxAge();
$attachments = $this
->getAttachments();
// Make sure cache metadata has been set.
if (empty($contexts) && empty($tags) && empty($attachments) && $max_age === Cache::PERMANENT) {
return;
}
// The below code is copied from Renderer::mergeBubbleableMetadata.
// @see \Drupal\Core\Render\Renderer::mergeBubbleableMetadata
$meta_a = BubbleableMetadata::createFromRenderArray($build);
$meta_b = BubbleableMetadata::createFromRenderArray([
'#cache' => [
'contexts' => $contexts,
'tags' => $tags,
'max-age' => $max_age,
'attachments' => $attachments,
],
]);
$meta_a
->merge($meta_b)
->applyTo($build);
}
}
Classes
Name![]() |
Description |
---|---|
WebformBubbleableMetadata | Value object used for bubbleable rendering metadata for webforms. |