protected function invalidateDocumentCacheFor(Opus_Model_AbstractDb $model)
{
$documentFinder = new Opus_DocumentFinder();
$documentFinder->setDependentModel($model);
$select = $documentFinder->getSelectIds();
$ids = $documentFinder->Ids();
$xmlCache = new Opus_Model_Xml_Cache();
$xmlCache->removeAllEntriesWhereSubSelect($select);
$date = new Opus_Date();
$date->setNow();
Opus_Document::setServerDateModifiedByIds($date, $ids);
}
