+ # yuck, false laziness
+ push @where, "cust_main.refnum = ". $opt{'refnum'} if $opt{'refnum'};
+
+ if ( $opt{'cust_classnum'} ) {
+ my $classnums = $opt{'cust_classnum'};
+ $classnums = [ $classnums ] if !ref($classnums);
+ @$classnums = grep /^\d+$/, @$classnums;
+ push @where, 'cust_main.classnum in('. join(',',@$classnums) .')';
+ }