my ($import_record_id, $biblionumber, $action) = @_;

    my ( $import_record_id, $biblionumber, $action ) = @_;

    my ($num_items_added, $num_items_errored, $num_items_replaced) = 0;

    my ( $num_items_added, $num_items_errored, $num_items_replaced ) = 0;

    my $sth = $dbh->prepare("SELECT import_items_id, import_items.marcxml, encoding

    my $sth = $dbh->prepare("

                             FROM import_items

        SELECT import_items_id, import_items.marcxml, encoding

                             JOIN import_records USING (import_record_id)

        FROM import_items

                             WHERE import_record_id = ?

        JOIN import_records USING (import_record_id)

                             ORDER BY import_items_id");

        WHERE import_record_id = ?

    $sth->bind_param(1, $import_record_id);

        ORDER BY import_items_id

    ");

    $sth->bind_param( 1, $import_record_id );

    while (my $row = $sth->fetchrow_hashref()) {

    while ( my $row = $sth->fetchrow_hashref() ) {

        my $item_marc = MARC::Record->new_from_xml(StripNonXmlChars($row->{'marcxml'}), 'UTF-8', $row->{'encoding'});

        my $item_marc = MARC::Record->new_from_xml( StripNonXmlChars( $row->{'marcxml'} ), 'UTF-8', $row->{'encoding'} );

    #delete date_due subfield as to not accidentally delete item checkout due dates

        my ($MARCfield,$MARCsubfield) = GetMarcFromKohaField('items.onloan', GetFrameworkCode($biblionumber));

        #delete date_due subfield as to not accidentally delete item checkout due dates

 $item_marc->field($MARCfield)->delete_subfield(code => $MARCsubfield);

        my ( $MARCfield, $MARCsubfield ) = GetMarcFromKohaField( 'items.onloan', GetFrameworkCode($biblionumber) );

        # FIXME - duplicate barcode check needs to become part of AddItemFromMarc()

        $item_marc->field($MARCfield)->delete_subfield( code => $MARCsubfield );

        my $item = TransformMarcToKoha($dbh, $item_marc);

        my $duplicate_barcode = exists($item->{'barcode'}) && GetItemnumberFromBarcode($item->{'barcode'});

        my $item = TransformMarcToKoha( $dbh, $item_marc );

        my $duplicate_itemnumber = exists($item->{'itemnumber'});

     my $updsth = $dbh->prepare("UPDATE import_items SET status = ?, itemnumber = ? WHERE import_items_id = ?");

        my $duplicate_barcode = exists( $item->{'barcode'} ) && GetItemnumberFromBarcode( $item->{'barcode'} );

    if($action eq "replace" && $duplicate_itemnumber){

        my $duplicate_itemnumber = exists( $item->{'itemnumber'} );

         ModItemFromMarc($item_marc, $biblionumber, $item->{itemnumber});

            $updsth->bind_param(1, 'imported');

        my $updsth = $dbh->prepare("UPDATE import_items SET status = ?, itemnumber = ? WHERE import_items_id = ?");

            $updsth->bind_param(2, $item->{itemnumber});

        if ( $action eq "replace" && $duplicate_itemnumber ) {

            $updsth->bind_param(3, $row->{'import_items_id'});

            ModItemFromMarc( $item_marc, $biblionumber, $item->{itemnumber} );

            $updsth->bind_param( 1, 'imported' );

            $updsth->bind_param( 2, $item->{itemnumber} );

            $updsth->bind_param( 3, $row->{'import_items_id'} );

        $num_items_replaced++;

            $num_items_replaced++;

     }

        } elsif ($duplicate_barcode) {

        elsif ($duplicate_barcode) {

            $updsth->bind_param( 1, 'error' );

            $updsth->bind_param(1, 'error');

            $updsth->bind_param( 2, 'duplicate item barcode' );

            $updsth->bind_param(2, 'duplicate item barcode');

            $updsth->bind_param( 3, $row->{'import_items_id'} );

            $updsth->bind_param(3, $row->{'import_items_id'});

            my ($item_biblionumber, $biblioitemnumber, $itemnumber) = AddItemFromMarc($item_marc, $biblionumber);

            my ( $item_biblionumber, $biblioitemnumber, $itemnumber ) = AddItemFromMarc( $item_marc, $biblionumber );

            $updsth->bind_param(1, 'imported');

            $updsth->bind_param( 1, 'imported' );

            $updsth->bind_param(2, $itemnumber);

            $updsth->bind_param( 2, $itemnumber );

            $updsth->bind_param(3, $row->{'import_items_id'});

            $updsth->bind_param( 3, $row->{'import_items_id'} );

    $sth->finish();

    return ($num_items_added, $num_items_replaced, $num_items_errored);

    return ( $num_items_added, $num_items_replaced, $num_items_errored );