=cut
-sub GetPrimaryKeys($) {
+sub GetPrimaryKeys {
my $tablename=shift;
my $hash_columns=_get_columns($tablename);
return grep { $hash_columns->{$_}->{'Key'} =~/PRI/i} keys %$hash_columns;
=cut
-sub _get_columns($) {
+sub _get_columns {
my ($tablename) = @_;
unless ( exists( $hashref->{$tablename} ) ) {
my $dbh = C4::Context->dbh;
=cut
-sub _filter_columns ($$;$) {
+sub _filter_columns {
my ($tablename,$research, $filtercolumns)=@_;
if ($filtercolumns){
return (@$filtercolumns);