function saveRegisteredDoi($context, $object, $testPrefix = '10.1234')
{
$registeredDoi = $object->getStoredPubId('doi');
assert(!empty($registeredDoi));
if ($this->isTestMode($context)) {
$registeredDoi = PKPString::regexp_replace('#^[^/]+/#', $testPrefix . '/', $registeredDoi);
}
$object->setData($this->getPluginSettingsPrefix() . '::' . DOI_EXPORT_REGISTERED_DOI, $registeredDoi);
$this->updateObject($object);
}