function deleteStoredObjectAttribute($contentObjectAttribute, $version = null)
{
$contentObjectAttributeID = $contentObjectAttribute->attribute('id');
$urls = array();
if ($version == null) {
$urls = eZURLObjectLink::fetchLinkList($contentObjectAttributeID, false, false);
eZURLObjectLink::removeURLlinkList($contentObjectAttributeID, false);
} else {
$urls = eZURLObjectLink::fetchLinkList($contentObjectAttributeID, $version, false);
eZURLObjectLink::removeURLlinkList($contentObjectAttributeID, $version);
}
$urls = array_unique($urls);
$db = eZDB::instance();
$db->begin();
foreach ($urls as $urlID) {
if (!eZURLObjectLink::hasObjectLinkList($urlID)) {
eZURL::removeByID($urlID);
}
}
$db->commit();
}
