+ my $options = ref $key eq 'HASH' ? $key : { key => $key };
+ $options->{key} ||= "all_customers";
+ my $limit_clause = "LIMIT $options->{limit}" if $options->{limit};
+ my $where = $options->{business_is_salesman} ? qq| AND business_id IN (SELECT id FROM business WHERE salesman)| : '';