+++ /dev/null
-package C4::Input; #assumes C4/Input
-
-
-# Copyright 2000-2002 Katipo Communications
-#
-# This file is part of Koha.
-#
-# Koha is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
-# (at your option) any later version.
-#
-# Koha is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Koha; if not, see <http://www.gnu.org/licenses>.
-
-use strict;
-use warnings;
-
-require Exporter;
-use C4::Context;
-use CGI qw ( -utf8 );
-
-use vars qw($VERSION @ISA @EXPORT);
-
-# set the version for version checking
-$VERSION = 3.07.00.049;
-
-=head1 NAME
-
-C4::Input - Miscellaneous sanity checks
-
-=head1 SYNOPSIS
-
- use C4::Input;
-
-=head1 DESCRIPTION
-
-This module provides functions to see whether a given library card
-number or ISBN is valid.
-
-=head1 FUNCTIONS
-
-=over 2
-
-=cut
-
-@ISA = qw(Exporter);
-@EXPORT = qw(
- &checkdigit
-);
-
-=item checkdigit
-
- $valid = &checkdigit($cardnumber $nounique);
-
-Takes a card number, computes its check digit, and compares it to the
-checkdigit at the end of C<$cardnumber>. Returns a true value iff
-C<$cardnumber> has a valid check digit.
-
-=cut
-
-#'
-sub checkdigit ($;$) {
-
- my ($infl, $nounique) = @_;
- $infl = uc $infl;
-
- # Check to make sure the cardnumber is unique
-
- #FIXME: We should make the error for a nonunique cardnumber
- #different from the one where the checkdigit on the number is
- #not correct
-
- unless ( $nounique )
- {
- my $query=qq{SELECT * FROM borrowers WHERE cardnumber=?};
- my $sth=C4::Context->prepare($query);
- $sth->execute($infl);
- my %results = $sth->fetchrow_hashref();
- if ( $sth->rows != 0 )
- {
- return 0;
- }
- }
- if (C4::Context->preference("checkdigit") eq "none") {
- return 1;
- }
-
- my @weightings = (8,4,6,3,5,2,1);
- my $sum;
- foreach my $i (1..7) {
- my $temp1 = $weightings[$i-1];
- my $temp2 = substr($infl,$i,1);
- $sum += $temp1 * $temp2;
- }
- my $rem = ($sum%11);
- if ($rem == 10) {
- $rem = "X";
- }
- if ($rem eq substr($infl,8,1)) {
- return 1;
- }
- return 0;
-} # sub checkdigit
-
-END { } # module clean-up code here (global destructor)
-
-1;
-__END__
-
-=back
-
-=head1 AUTHOR
-
-Koha Development Team <http://koha-community.org/>
-
-=cut