/**
* {@inheritdoc}
*/
public function transform($value, MigrateExecutableInterface $migrate_executable, Row $row, $destination_property) {
if (!isset($this->configuration['fallback_to_site_default'])) {
$this->configuration['fallback_to_site_default'] = TRUE;
}
// If the user's language is empty, it means the locale module was not
// installed, so the user's langcode should be English and the user's
// preferred_langcode and preferred_admin_langcode should fallback to the
// default language.
if (empty($value)) {
if ($this->configuration['fallback_to_site_default']) {
return $this->languageManager->getDefaultLanguage()->getId();
}
else {
return 'en';
}
}
// If the user's language does not exists, use the default language.
elseif ($this->languageManager->getLanguage($value) === NULL) {
return $this->languageManager->getDefaultLanguage()->getId();
}
// If the langcode is a valid one, just return it.
return $value;
}
