function content_translation_page_attachments in Zircon Profile 8.0
Same name and namespace in other branches
- 8 core/modules/content_translation/content_translation.module \content_translation_page_attachments()
Implements hook_page_attachments().
File
- core/
modules/ content_translation/ content_translation.module, line 551 - Allows entities to be translated into different languages.
Code
function content_translation_page_attachments(&$page) {
$route_match = \Drupal::routeMatch();
// If the current route has no parameters, return.
if (!($route = $route_match
->getRouteObject()) || !($parameters = $route
->getOption('parameters'))) {
return;
}
// Determine if the current route represents an entity.
foreach ($parameters as $name => $options) {
if (!isset($options['type']) || strpos($options['type'], 'entity:') !== 0) {
continue;
}
$entity = $route_match
->getParameter($name);
if ($entity instanceof ContentEntityInterface) {
// Current route represents a content entity. Build hreflang links.
foreach ($entity
->getTranslationLanguages() as $language) {
$url = $entity
->urlInfo()
->setOption('language', $language)
->setAbsolute()
->toString();
$page['#attached']['html_head_link'][] = array(
array(
'rel' => 'alternate',
'hreflang' => $language
->getId(),
'href' => $url,
),
TRUE,
);
}
}
// Since entity was found, no need to iterate further.
return;
}
}