Main Koha release repository https://koha-community.org
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

164 lines
4.1 KiB

package Koha::BiblioUtils;
# This contains functions to do with managing biblio records.
# Copyright 2014 Catalyst IT
#
# 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
=head1 NAME
Koha::BiblioUtils - contains fundamental biblio-related functions
=head1 DESCRIPTION
This contains functions for normal operations on biblio records.
Note: really, C4::Biblio does the main functions, but the Koha namespace is
the new thing that should be used.
=cut
use C4::Biblio; # EmbedItemsInMarcBiblio
use Koha::MetadataIterator;
use Koha::Database;
use Modern::Perl;
use Data::Dumper; # TODO remove
use base qw(Koha::MetadataRecord);
__PACKAGE__->mk_accessors(qw( record schema id datatype ));
=head1 FUNCTIONS
=head2 new
my $biblio = Koha::BiblioUtils->new($marc_record, [$biblionumber]);
Creates an instance of C<Koha::BiblioUtils> based on the marc record. If known,
the biblionumber can be provided too.
=cut
sub new {
my $class = shift;
my $record = shift;
my $biblionumber = shift;
my $self = $class->SUPER::new(
{
'record' => $record,
'schema' => lc C4::Context->preference("marcflavour"),
'id' => $biblionumber,
'datatype' => 'biblio',
}
);
bless $self, $class;
return $self;
}
=head2 get_from_biblionumber
my $biblio = Koha::BiblioUtils->get_from_biblionumber($biblionumber, %options);
This will give you an instance of L<Koha::BiblioUtils> that is the biblio that
you requested.
Options are:
=over 4
=item C<$item_data>
If true, then the item data will be merged into the record when it's loaded.
=back
It will return C<undef> if the biblio doesn't exist.
=cut
sub get_from_biblionumber {
my ($class, $bibnum, %options) = @_;
my $marc = $class->get_marc_biblio($bibnum, %options);
return $class->new($marc, $bibnum);
}
=head2 get_all_biblios_iterator
my $it = Koha::BiblioUtils->get_all_biblios_iterator();
This will provide an iterator object that will, one by one, provide the
Koha::BiblioUtils of each biblio. This will include the item data.
The iterator is a Koha::MetadataIterator object.
=cut
sub get_all_biblios_iterator {
my $database = Koha::Database->new();
my $schema = $database->schema();
my $rs =
$schema->resultset('Biblio')->search( {},
{ columns => [qw/ biblionumber /] } );
my $next_func = sub {
# Warn and skip bad records, otherwise we break the loop
while (1) {
my $row = $rs->next();
return if !$row;
my $marc = C4::Biblio::GetMarcBiblio( $row->biblionumber, 1 );
my $next = eval {
__PACKAGE__->new($marc, $row->biblionumber);
};
if ($@) {
warn "Something went wrong reading record for biblio $row->biblionumber: $@\n";
next;
}
return $next;
}
};
return Koha::MetadataIterator->new($next_func);
}
=head2 get_marc_biblio
my $marc = Koha::BiblioUtils->get_marc_biblio($bibnum, %options);
This non-class function fetches the MARC::Record for the given biblio number.
Nothing is returned if the biblionumber couldn't be found (or it somehow has no
MARC data.)
Options are:
=over 4
=item item_data
If set to true, item data is embedded in the record. Default is to not do this.
=back
=cut
sub get_marc_biblio {
my ($class, $bibnum, %options) = @_;
return C4::Biblio::GetMarcBiblio( $bibnum, ($options{item_data} ? 1 : 0 ) );
}
1;