+ if ($opt{classname_from_column}) {
+ # Perform a union of multiple queries, while using the
+ # classname_from_column qsearch union option
+
+ # Constrain hashkeys for each query from @param
+ @query = map{
+ my $query = $_;
+ my $new_query = {};
+ $new_query->{$_} = $query->{$_} for @param;
+ $new_query;
+ } @query;
+
+ $rows = [
+ qsearch(
+ \@query,
+ order_by => $union_order_by,
+ classname_from_column => 1,
+ )
+ ];
+
+ } else {
+ # default perform a query with qsearch
+ $rows = [ qsearch( [ map { my $query = $_;
+ ({ map { $_ => $query->{$_} } @param });
+ }
+ @query
+ ],
+ #'order_by' => $opt{order_by}. " ". $limit,
+ )
+ ];
+ }