+% #a few lines of false laziness w/edit/part_svc.cgi
+% my $def = FS::part_svc->svc_table_fields($svcdb)->{$field};
+% my $formatter = $def->{format} || sub { shift };
+%
+% my $part_svc_column = $part_svc->part_svc_column($field);
+% my $label = $part_svc_column->columnlabel || $def->{'label'};
+% my $flag = $part_svc_column->columnflag;