97 lines
2.9 KiB
Perl
97 lines
2.9 KiB
Perl
package C4::Barcodes::annual;
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# Copyright 2008 LibLime
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#
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# This file is part of Koha.
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#
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# Koha is free software; you can redistribute it and/or modify it under the
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# terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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#
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# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with Koha; if not, write to the Free Software Foundation, Inc.,
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# 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 $cgi_debug); # from C4::Debug, of course
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use vars qw($width);
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BEGIN {
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$VERSION = 0.01;
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@ISA = qw(C4::Barcodes);
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$width = 4;
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}
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sub db_max ($;$) {
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my $self = shift;
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my $query = "SELECT max(substring_index(barcode,'-',-1)) AS chunk,barcode FROM items WHERE barcode LIKE ? GROUP BY barcode";
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# FIXME: unreasonably expensive query on large datasets
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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
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}
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} else {
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$iso = C4::Dates->new->output('iso');
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}
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my $year = substr($iso,0,4); # YYYY
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$sth->execute("$year-%");
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my $row = $sth->fetchrow_hashref;
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warn "barcode db_max (annual format, year $year): $row->{barcode}" if $debug;
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return $row->{barcode};
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}
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sub initial () {
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my $self = shift;
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return substr(C4::Dates->new->output('iso'),0,4) .'-'. sprintf('%'."$width.$width".'d', 1);
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}
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sub parse ($;$) {
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my $self = shift;
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my $barcode = (@_) ? shift : $self->value;
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unless ($barcode =~ /(\d{4}-)(\d+)$/) { # non-greedy match in first part
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carp "Barcode '$barcode' has no incrementing part!";
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return ($barcode,undef,undef);
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}
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$debug and warn "Barcode '$barcode' parses into: '$1', '$2', ''";
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return ($1,$2,''); # the third part is in anticipation of barcodes that include checkdigits
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}
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sub width ($;$) {
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my $self = shift;
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(@_) and $width = shift; # hitting the class variable.
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return $width;
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}
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sub 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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return substr(C4::Dates->new->output('iso'),0,4) . '-'; # else get new YYYY-
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}
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sub new_object {
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my $class = shift;
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my $type = ref($class) || $class;
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my $self = $type->default_self('annual');
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return bless $self, $type;
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}
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1;
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__END__
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