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package C4::XSLT;
# Copyright (C) 2006 LibLime
# <jmf at liblime dot com>
#
# 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 2 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., 59 Temple Place,
# Suite 330, Boston, MA 02111-1307 USA
use strict;
use warnings;
use Koha;
use C4::Context;
use C4::Branch;
use C4::Items;
use C4::Koha;
use C4::Biblio;
use C4::Circulation;
use Encode;
use XML::LibXML;
use XML::LibXSLT;
use vars qw($VERSION @ISA @EXPORT);
BEGIN {
require Exporter;
$VERSION = 0.03;
@ISA = qw(Exporter);
@EXPORT = qw(
&XSLTParse4Display
);
}
=head1 NAME
C4::XSLT - Functions for displaying XSLT-generated content
=head1 FUNCTIONS
=head1 transformMARCXML4XSLT
=head2 replaces codes with authorized values in a MARC::Record object
=cut
sub transformMARCXML4XSLT {
my ($biblionumber, $record) = @_;
my $frameworkcode = GetFrameworkCode($biblionumber);
my $tagslib = &GetMarcStructure(1,$frameworkcode);
my @fields;
# FIXME: wish there was a better way to handle exceptions
eval {
@fields = $record->fields();
};
if ($@) { warn "PROBLEM WITH RECORD"; return; }
my $av = getAuthorisedValues4MARCSubfields($frameworkcode);
foreach my $tag ( keys %$av ) {
foreach my $field ( $record->field( $tag ) ) {
if ( $av->{ $tag } ) {
my @new_subfields = ();
for my $subfield ( $field->subfields() ) {
my ( $letter, $value ) = @$subfield;
$value = GetAuthorisedValueDesc( $tag, $letter, $value, '', $tagslib,undef,1 )
if $av->{ $tag }->{ $letter };
push( @new_subfields, $letter, $value );
}
$field ->replace_with( MARC::Field->new(
$tag,
$field->indicator(1),
$field->indicator(2),
@new_subfields
) );
}
}
}
return $record;
}
=head1 getAuthorisedValues4MARCSubfields
=head2 returns an ref of hash of ref of hash for tag -> letter controled bu authorised values
=cut
# Cache for tagfield-tagsubfield to decode per framework.
# Should be preferably be placed in Koha-core...
my %authval_per_framework;
sub getAuthorisedValues4MARCSubfields {
my ($frameworkcode) = @_;
unless ( $authval_per_framework{ $frameworkcode } ) {
my $dbh = C4::Context->dbh;
my $sth = $dbh->prepare("SELECT DISTINCT tagfield, tagsubfield
FROM marc_subfield_structure
WHERE authorised_value IS NOT NULL
AND authorised_value!=''
AND frameworkcode=?");
$sth->execute( $frameworkcode );
my $av = { };
while ( my ( $tag, $letter ) = $sth->fetchrow() ) {
$av->{ $tag }->{ $letter } = 1;
}
$authval_per_framework{ $frameworkcode } = $av;
}
return $authval_per_framework{ $frameworkcode };
}
sub _seed_stylesheet_cache {
my ($interface, $xsl_suffix) = @_;
my $stylesheet_cache = C4::Context->getcache(__PACKAGE__,
{driver => 'RawMemory',
datastore => C4::Context->cachehash});
my $xslt = XML::LibXSLT->new();
my $xslfile;
if ($interface eq 'intranet') {
$xslfile = C4::Context->config('intrahtdocs') .
"/prog/en/xslt/" .
C4::Context->preference('marcflavour') .
"slim2intranet$xsl_suffix.xsl";
} else {
$xslfile = C4::Context->config('opachtdocs') .
"/prog/en/xslt/" .
C4::Context->preference('marcflavour') .
"slim2OPAC$xsl_suffix.xsl";
}
my $parser = XML::LibXML->new();
$parser->recover_silently(1);
my $style_doc = $parser->parse_file($xslfile);
$xslt->parse_stylesheet($style_doc);
}
sub XSLTParse4Display {
my ( $biblionumber, $orig_record, $xsl_suffix, $interface ) = @_;
# grab the XML, run it through our stylesheet, push it out to the browser
my $record = transformMARCXML4XSLT($biblionumber, $orig_record);
#return $record->as_formatted();
my $itemsxml = buildKohaItemsNamespace($biblionumber);
my $xmlrecord = $record->as_xml();
my $sysxml = "<sysprefs>\n";
foreach my $syspref ( qw/OPACURLOpenInNewWindow DisplayOPACiconsXSLT URLLinkText viewISBD DisplayStafficonsXSLT OPACXSLTResultsAvailabilityDisplay/ ) {
$syspref ||= '';
$sysxml .= "<syspref name=\"$syspref\">" .
C4::Context->preference( $syspref ) .
"</syspref>\n";
}
$sysxml .= "</sysprefs>\n";
$xmlrecord =~ s/\<\/record\>/$itemsxml$sysxml\<\/record\>/;
$xmlrecord =~ s/\& /\&amp\; /;
$xmlrecord=~ s/\&amp\;amp\; /\&amp\; /;
my $parser = XML::LibXML->new();
# don't die when you find &, >, etc
$parser->recover_silently(1);
my $source = $parser->parse_string($xmlrecord);
my $stylesheet_cache = C4::Context->getcache(__PACKAGE__,
{driver => 'RawMemory',
datastore => C4::Context->cachehash});
my $stylesheet = $stylesheet_cache->compute($interface, '1h',
sub {_seed_stylesheet_cache($interface, $xsl_suffix)});
my $results = $stylesheet->transform($source);
my $newxmlrecord = $stylesheet->output_string($results);
return $newxmlrecord;
}
sub buildKohaItemsNamespace {
my ($biblionumber) = @_;
my @items = C4::Items::GetItemsInfo($biblionumber);
my $branches = GetBranches();
my $itemtypes = GetItemTypes();
my $xml = '';
for my $item (@items) {
my $status;
my ( $transfertwhen, $transfertfrom, $transfertto ) = C4::Circulation::GetTransfers($item->{itemnumber});
if ( (defined $item->{itype} && $itemtypes->{ $item->{itype} }->{notforloan} == 1) || $item->{notforloan} || $item->{onloan} || $item->{wthdrawn} || $item->{itemlost} || $item->{damaged} || $item->{suppress} ||
(defined $transfertwhen && $transfertwhen ne '') || $item->{itemnotforloan} || $item->{reserve_status} eq "Attached" || $item->{reserve_status} eq "Reserved" || $item->{reserve_status} eq "Waiting" ) {
next if ($item->{suppress});
if (defined $item->{reserve_status} and (
($item->{reserve_status} eq 'Attached') || ($item->{reserve_status} eq 'Reserved') || ($item->{reserve_status} eq 'Waiting'))
) {
$status = 'On hold';
}
if ( $item->{notforloan} < 0) {
$status = "On order";
}
if ( $item->{itemnotforloan} > 0 || $item->{notforloan} > 0 || (defined $item->{itype} && $itemtypes->{ $item->{itype} }->{notforloan} == 1) ) {
$status = "reference";
}
if ($item->{onloan}) {
$status = "Checked out";
}
if ( $item->{wthdrawn}) {
$status = "Withdrawn";
}
if ($item->{itemlost}) {
$status = "Lost";
}
if ($item->{damaged}) {
$status = "Damaged";
}
if (defined $transfertwhen && $transfertwhen ne '') {
$status = 'In transit';
}
} else {
$status = "available";
}
# suppress Perl warning about uninitialized value when no branch is set
my $homebranch = '';
$homebranch = $branches->{$item->{homebranch} || ''}->{'branchname'} || '';
$xml.= "<item><homebranch>$homebranch</homebranch>".
"<status>$status</status>".
(defined $item->{'itemcallnumber'} ? "<itemcallnumber>".$item->{'itemcallnumber'}."</itemcallnumber>"
: "<itemcallnumber />")
. "</item>";
}
$xml = "<items xmlns=\"http://www.koha.org/items\">".$xml."</items>";
return $xml;
}
1;
__END__
=head1 NOTES
=head1 AUTHOR
Joshua Ferraro <jmf@liblime.com>
=cut
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