<?php 
$db = $GLOBALS['db'];
global $app_list_strings;
$query2=$db->query("select items.id,items.ecmproduct_id,pr.unit_id from ecmprepaymentinvoiceitems as items
join ecmprepaymentinvoices as doc on doc.id=items.ecmprepaymentinvoice_id
join ecmproducts as pr on pr.id=items.ecmproduct_id;");
while($r = $db->fetchByAssoc($query2)){
	$db->query("update ecmprepaymentinvoiceitems set 
			dd_unit_id='".$r['unit_id']."',
					dd_unit_name='".$app_list_strings['ecmproducts_unit_dom'][$r['unit_id']]."' 
							where id='".$r['id']."'");
}
?>