+ #customer classnum
+ if ( $param->{'cust_classnum'} ) {
+ my $classnums = $param->{'cust_classnum'};
+ $classnums = [ $classnums ] if !ref($classnums);
+ $classnums = [ grep /^\d+$/, @$classnums ];
+ push @search, 'cust_main.classnum in ('.join(',',@$classnums).')'
+ if @$classnums;
+ }
+