if (C4::Context->preference("Version") < TransformToNum($DBversion)) {
$dbh->do("UPDATE systempreferences set value=0 WHERE variable='OPACItemsResultsDisplay' AND value='statuses'");
$dbh->do("UPDATE systempreferences set value=1 WHERE variable='OPACItemsResultsDisplay' AND value='itemdetails'");
if (C4::Context->preference("Version") < TransformToNum($DBversion)) {
$dbh->do("UPDATE systempreferences set value=0 WHERE variable='OPACItemsResultsDisplay' AND value='statuses'");
$dbh->do("UPDATE systempreferences set value=1 WHERE variable='OPACItemsResultsDisplay' AND value='itemdetails'");