File Coverage

File:C4/Barcodes/hbyymmincr.pm
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1package C4::Barcodes::hbyymmincr;
2
3# Copyright 2008 LibLime
4#
5# This file is part of Koha.
6#
7# Koha is free software; you can redistribute it and/or modify it under the
8# terms of the GNU General Public License as published by the Free Software
9# Foundation; either version 2 of the License, or (at your option) any later
10# version.
11#
12# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
13# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
14# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
15#
16# You should have received a copy of the GNU General Public License along
17# with Koha; if not, write to the Free Software Foundation, Inc.,
18# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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use strict;
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use warnings;
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use Carp;
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use C4::Context;
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use C4::Debug;
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use C4::Dates;
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use vars qw($VERSION @ISA);
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use vars qw($debug $cgi_debug); # from C4::Debug, of course
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use vars qw($branch $width);
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33BEGIN {
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    $VERSION = 0.01;
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    @ISA = qw(C4::Barcodes);
36}
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38INIT {
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        $branch = '';
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        $width = 4; # FIXME: 4 is too small for sizeable or multi-branch libraries.
41}
42# Generates barcode where hb = home branch Code, yymm = year/month catalogued, incr = incremental number,
43# increment resets yearly -fbcit
44
45sub db_max ($;$) {
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        my $self = shift;
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        my $query = "SELECT MAX(SUBSTRING(barcode,-$width)), barcode FROM items WHERE barcode REGEXP ? GROUP BY barcode";
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        $debug and print STDERR "(hbyymmincr) db_max query: $query\n";
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        my $sth = C4::Context->dbh->prepare($query);
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        my ($iso);
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        if (@_) {
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                my $input = shift;
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                $iso = C4::Dates->new($input,'iso')->output('iso'); # try to set the date w/ 2nd arg
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                unless ($iso) {
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                        warn "Failed to create 'iso' Dates object with input '$input'. Reverting to today's date.";
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                        $iso = C4::Dates->new->output('iso'); # failover back to today
57                }
58        } else {
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                $iso = C4::Dates->new->output('iso');
60        }
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        my $year = substr($iso,2,2); # i.e. "08" for 2008
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        my $andtwo = $width+2;
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        $sth->execute("^[a-zA-Z]{1,}" . $year . "[0-9]{$andtwo}"); # the extra two digits are the month. we don't care what they are, just that they are there.
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        unless ($sth->rows) {
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                warn "No existing hbyymmincr barcodes found. Reverting to initial value.";
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                return $self->initial;
67        }
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        my ($row) = $sth->fetchrow_hashref;
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        my $max = $row->{barcode};
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        warn "barcode max (hbyymmincr format): $max" if $debug;
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        return ($max || 0);
72}
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74sub initial () {
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        my $self = shift;
76        # FIXME: populated branch?
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        my $iso = C4::Dates->new->output('iso'); # like "2008-07-02"
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        return $self->branch . substr($iso,2,2) . substr($iso,5,2) . sprintf('%' . "$width.$width" . 'd',1);
79}
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81sub parse ($;$) { # return 3 parts of barcode: non-incrementing, incrementing, non-incrementing
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        my $self = shift;
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        my $barcode = (@_) ? shift : $self->value;
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        my $branch = $self->branch;
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        unless ($barcode =~ /($branch\d{4})(\d+)$/) {
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                carp "Barcode '$barcode' has no incrementing part!";
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                return ($barcode,undef,undef);
88        }
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        $debug and warn "Barcode '$barcode' parses into: '$1', '$2', ''";
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        return ($1,$2,''); # the third part is in anticipation of barcodes that include checkdigits
91}
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93sub branch ($;$) {
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        my $self = shift;
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        (@_) and $self->{branch} = shift;
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        return $self->{branch};
97}
98sub width ($;$) {
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        my $self = shift;
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        (@_) and $width = shift; # hitting the class variable.
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        return $width;
102}
103sub process_head($$;$$) { # (self,head,whole,specific)
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        my ($self,$head,$whole,$specific) = @_;
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        $specific and return $head; # if this is built off an existing barcode, just return the head unchanged.
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        $head =~ s/\d{4}$//; # else strip the old yymm
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        my $iso = C4::Dates->new->output('iso'); # like "2008-07-02"
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        return $head . substr($iso,2,2) . substr($iso,5,2);
109}
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111sub new_object {
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        $debug and warn "hbyymmincr: new_object called";
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        my $class_or_object = shift;
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        my $type = ref($class_or_object) || $class_or_object;
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        my $from_obj = ref($class_or_object) ? 1 : 0; # are we building off another Barcodes object?
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        my $self = $class_or_object->default_self('hbyymmincr');
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        bless $self, $type;
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        $self->branch(@_ ? shift : $from_obj ? $class_or_object->branch : $branch);
119                # take the branch from argument, or existing object, or default
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        use Data::Dumper;
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        $debug and print STDERR "(hbyymmincr) new_object: ", Dumper($self), "\n";
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        return $self;
123}
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1251;