my $anonymous_patron = C4::Context->preference('AnonymousPatron') || undef;
$nb_rows += $old_issues_to_anonymise->update( { 'old_issues.borrowernumber' => $anonymous_patron } );
$nb_rows += $last_borrowers_to_anonymise->update( { 'items_last_borrower.borrowernumber' => $anonymous_patron } );
$last_borrowers_to_anonymise->update( { 'items_last_borrower.borrowernumber' => $anonymous_patron } );
}
return $nb_rows;
-