+ $f->{'type'} = 'select-table';
+ $f->{'table'} = 'inventory_item';
+ $f->{'name_col'} = 'item';
+ $f->{'value_col'} = 'item';
+ $f->{'agent_virt'} = 1;
+ $f->{'agent_null'} = 1;
+ $f->{'hashref'} = {
+ 'classnum'=>$columndef->columnvalue,
+ #'svcnum' => '',
+ };
+ $f->{'extra_sql'} = 'AND ( svcnum IS NULL ';
+ $f->{'extra_sql'} .= ' OR svcnum = '. $object->svcnum
+ if $object->svcnum;
+ $f->{'extra_sql'} .= ' ) ';
+ $f->{'disable_empty'} = $object->svcnum ? 1 : 0,