/**
* Returns the changes for a given record in a particular language, since
* a given version number.
* @param Dataface_Record &$record The record we are interested in.
* @param string $language 2-digit language code
* @param float $version <major_version>.<minor_version>
* @param string $fieldname Optional field name to get changes for.
* @returns mixed Either a Dataface_Record object with the changes, or
* a string with the changes for $fieldname.
*
*/
function getChanges(&$record, $version, $lang = null, $fieldname = null)
{
$app = Dataface_Application::getInstance();
if (!isset($lang)) {
$lang = $app->_conf['lang'];
}
list($major_version, $minor_version) = explode('.', $version);
$trecord = $this->getTranslationRecord($record, $lang);
import('Dataface/HistoryTool.php');
$ht = new Dataface_HistoryTool();
$hrecord = $ht->searchArchives($trecord, array('major_version' => $major_version, 'minor_version' => $minor_version), $lang);
$modified = $hrecord->strval('history__modified');
return $ht->getDiffsByDate($record, $modified, null, $lang, $fieldname);
}
