6c7f964c27
Add an option to the OPAC to display the URI that is stored in the 856u field as an image instead of a text link. This would be implemented in the OPAC XSLT style sheets for the Results and Details pages, and would require that the corresponding OPAC XSLT option be set. This enhancement is designed to enable the staff to catalog images, then have them appear on the resulting pages in the OPAC when searching. Clicking on the image would open it full size. If the image option is in use, then the default link text would be disabled. Custom text would still appear if entered in the "URLLinkText" option. Add system preference "Display856uAsImage" with options of Results page, Details page, Both Results and Details pages, Neither Results or Details page. Notes for documentation manager: There are two system preferences added for this enhancement: OPACDisplay856uAsImage and Display856uAsImage. These appear on the OPAC and Staff Client screens under the System Preferences. The preference can be set to one of four options: Both Details and Results pages Details page only Neither Details or Results pages Results page only In addition to this option being set, the corresponding XSLT option must be turned on. Also, the corresponding 856q field must have a valid MIME image extension (e.g., "jpg") or MIME image type (i.e. starting with "image/"), or the generic indicator "img" entered in the field. As of 14 March 2011 the UNIMARC xslt display files also require a "0" in the second indicator location of the 856u field for the links to be activated. This is not true for the MARC21 display files. When all of the requirements are met, an image file will be displayed instead of the standard link text. Clicking on the image will open it in the same way as clicking on the link text. Rebased and three original patches squashed into one on 30 March 2011 by Jared Camins-Esakov. Signed-off-by: Jared Camins-Esakov <jcamins@bywatersolutions.com> Signed-off-by: Doug Dearden <dearden@sarsf.org> Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
246 lines
8.3 KiB
Perl
Executable file
246 lines
8.3 KiB
Perl
Executable file
package C4::XSLT;
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# Copyright (C) 2006 LibLime
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# <jmf at liblime dot com>
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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 C4::Context;
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use C4::Branch;
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use C4::Items;
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use C4::Koha;
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use C4::Biblio;
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use C4::Circulation;
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use C4::Reserves;
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use C4::Output qw//;
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use Encode;
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use XML::LibXML;
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use XML::LibXSLT;
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use vars qw($VERSION @ISA @EXPORT);
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BEGIN {
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require Exporter;
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$VERSION = 0.03;
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@ISA = qw(Exporter);
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@EXPORT = qw(
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&XSLTParse4Display
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);
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}
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=head1 NAME
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C4::XSLT - Functions for displaying XSLT-generated content
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=head1 FUNCTIONS
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=head2 transformMARCXML4XSLT
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Replaces codes with authorized values in a MARC::Record object
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=cut
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sub transformMARCXML4XSLT {
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my ($biblionumber, $record) = @_;
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my $frameworkcode = GetFrameworkCode($biblionumber);
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my $tagslib = &GetMarcStructure(1,$frameworkcode);
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my @fields;
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# FIXME: wish there was a better way to handle exceptions
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eval {
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@fields = $record->fields();
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};
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if ($@) { warn "PROBLEM WITH RECORD"; next; }
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my $av = getAuthorisedValues4MARCSubfields($frameworkcode);
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foreach my $tag ( keys %$av ) {
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foreach my $field ( $record->field( $tag ) ) {
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if ( $av->{ $tag } ) {
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my @new_subfields = ();
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for my $subfield ( $field->subfields() ) {
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my ( $letter, $value ) = @$subfield;
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$value = GetAuthorisedValueDesc( $tag, $letter, $value, '', $tagslib )
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if $av->{ $tag }->{ $letter };
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push( @new_subfields, $letter, $value );
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}
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$field ->replace_with( MARC::Field->new(
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$tag,
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$field->indicator(1),
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$field->indicator(2),
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@new_subfields
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) );
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}
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}
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}
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return $record;
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}
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=head2 getAuthorisedValues4MARCSubfields
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Returns a ref of hash of ref of hash for tag -> letter controled by authorised values
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=cut
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# Cache for tagfield-tagsubfield to decode per framework.
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# Should be preferably be placed in Koha-core...
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my %authval_per_framework;
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sub getAuthorisedValues4MARCSubfields {
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my ($frameworkcode) = @_;
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unless ( $authval_per_framework{ $frameworkcode } ) {
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my $dbh = C4::Context->dbh;
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my $sth = $dbh->prepare("SELECT DISTINCT tagfield, tagsubfield
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FROM marc_subfield_structure
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WHERE authorised_value IS NOT NULL
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AND authorised_value!=''
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AND frameworkcode=?");
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$sth->execute( $frameworkcode );
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my $av = { };
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while ( my ( $tag, $letter ) = $sth->fetchrow() ) {
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$av->{ $tag }->{ $letter } = 1;
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}
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$authval_per_framework{ $frameworkcode } = $av;
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}
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return $authval_per_framework{ $frameworkcode };
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}
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my $stylesheet;
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sub XSLTParse4Display {
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my ( $biblionumber, $orig_record, $xsl_suffix, $interface, $fixamps ) = @_;
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$interface = 'opac' unless $interface;
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# grab the XML, run it through our stylesheet, push it out to the browser
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my $record = transformMARCXML4XSLT($biblionumber, $orig_record);
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#return $record->as_formatted();
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my $itemsxml = buildKohaItemsNamespace($biblionumber);
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my $xmlrecord = $record->as_xml(C4::Context->preference('marcflavour'));
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my $sysxml = "<sysprefs>\n";
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foreach my $syspref ( qw/ hidelostitems OPACURLOpenInNewWindow
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DisplayOPACiconsXSLT URLLinkText viewISBD
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OPACBaseURL TraceCompleteSubfields
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UseAuthoritiesForTracings TraceSubjectSubdivisions
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Display856uAsImage OPACDisplay856uAsImage / )
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{
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my $sp = C4::Context->preference( $syspref );
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next unless defined($sp);
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$sysxml .= "<syspref name=\"$syspref\">$sp</syspref>\n";
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}
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$sysxml .= "</sysprefs>\n";
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$xmlrecord =~ s/\<\/record\>/$itemsxml$sysxml\<\/record\>/;
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if ($fixamps) { # We need to correct the ampersand entities that Zebra outputs
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$xmlrecord =~ s/\&amp;/\&/g;
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}
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$xmlrecord =~ s/\& /\&\; /;
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$xmlrecord =~ s/\&\;amp\; /\&\; /;
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my $parser = XML::LibXML->new();
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# don't die when you find &, >, etc
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$parser->recover_silently(0);
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my $source = $parser->parse_string($xmlrecord);
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unless ( $stylesheet ) {
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my $xslt = XML::LibXSLT->new();
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my $xslfile;
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if ($interface eq 'intranet') {
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$xslfile = C4::Context->config('intrahtdocs') .
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'/' . C4::Context->preference("template") .
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'/' . C4::Output::_current_language() .
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'/xslt/' .
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C4::Context->preference('marcflavour') .
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"slim2intranet$xsl_suffix.xsl";
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} else {
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$xslfile = C4::Context->config('opachtdocs') .
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'/' . C4::Context->preference("opacthemes") .
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'/' . C4::Output::_current_language() .
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'/xslt/' .
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C4::Context->preference('marcflavour') .
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"slim2OPAC$xsl_suffix.xsl";
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}
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my $style_doc = $parser->parse_file($xslfile);
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$stylesheet = $xslt->parse_stylesheet($style_doc);
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}
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my $results = $stylesheet->transform($source);
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my $newxmlrecord = $stylesheet->output_string($results);
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return $newxmlrecord;
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}
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sub buildKohaItemsNamespace {
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my ($biblionumber) = @_;
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my @items = C4::Items::GetItemsInfo($biblionumber);
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my $branches = GetBranches();
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my $itemtypes = GetItemTypes();
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my $xml = '';
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for my $item (@items) {
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my $status;
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my ( $transfertwhen, $transfertfrom, $transfertto ) = C4::Circulation::GetTransfers($item->{itemnumber});
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my ( $reservestatus, $reserveitem ) = C4::Reserves::CheckReserves($item->{itemnumber});
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if ( $itemtypes->{ $item->{itype} }->{notforloan} || $item->{notforloan} || $item->{onloan} || $item->{wthdrawn} || $item->{itemlost} || $item->{damaged} ||
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(defined $transfertwhen && $transfertwhen ne '') || $item->{itemnotforloan} || (defined $reservestatus && $reservestatus eq "Waiting") ){
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if ( $item->{notforloan} < 0) {
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$status = "On order";
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}
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if ( $item->{itemnotforloan} > 0 || $item->{notforloan} > 0 || $itemtypes->{ $item->{itype} }->{notforloan} == 1 ) {
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$status = "reference";
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}
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if ($item->{onloan}) {
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$status = "Checked out";
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}
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if ( $item->{wthdrawn}) {
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$status = "Withdrawn";
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}
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if ($item->{itemlost}) {
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$status = "Lost";
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}
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if ($item->{damaged}) {
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$status = "Damaged";
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}
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if (defined $transfertwhen && $transfertwhen ne '') {
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$status = 'In transit';
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}
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if (defined $reservestatus && $reservestatus eq "Waiting") {
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$status = 'Waiting';
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}
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} else {
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$status = "available";
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}
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my $homebranch = xml_escape($branches->{$item->{homebranch}}->{'branchname'});
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my $itemcallnumber = xml_escape($item->{itemcallnumber});
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$xml.= "<item><homebranch>$homebranch</homebranch>".
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"<status>$status</status>".
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"<itemcallnumber>".$itemcallnumber."</itemcallnumber>"
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. "</item>";
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}
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$xml = "<items xmlns=\"http://www.koha-community.org/items\">".$xml."</items>";
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return $xml;
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}
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1;
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__END__
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=head1 NOTES
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=cut
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=head1 AUTHOR
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Joshua Ferraro <jmf@liblime.com>
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=cut
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