C4/XSLT.pm

   1 package C4::XSLT;
   2 # Copyright (C) 2006 LibLime
   3 # <jmf at liblime dot com>
   4 # Parts Copyright Katrin Fischer 2011
   5 # Parts Copyright ByWater Solutions 2011
   6 # Parts Copyright Biblibre 2012
   7 #
   8 # This file is part of Koha.
   9 #
  10 # Koha is free software; you can redistribute it and/or modify it under the
  11 # terms of the GNU General Public License as published by the Free Software
  12 # Foundation; either version 2 of the License, or (at your option) any later
  13 # version.
  14 #
  15 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
  16 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  17 # A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License along
  20 # with Koha; if not, write to the Free Software Foundation, Inc.,
  21 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  22
  23 use strict;
  24 use warnings;
  25
  26 use C4::Context;
  27 use C4::Branch;
  28 use C4::Items;
  29 use C4::Koha;
  30 use C4::Biblio;
  31 use C4::Circulation;
  32 use C4::Reserves;
  33 use Encode;
  34 use XML::LibXML;
  35 use XML::LibXSLT;
  36 use LWP::Simple;
  37
  38 use vars qw($VERSION @ISA @EXPORT);
  39
  40 BEGIN {
  41     require Exporter;
  42     $VERSION = 3.07.00.049;
  43     @ISA = qw(Exporter);
  44     @EXPORT = qw(
  45         &XSLTParse4Display
  46         &GetURI
  47     );
  48 }
  49
  50 =head1 NAME
  51
  52 C4::XSLT - Functions for displaying XSLT-generated content
  53
  54 =head1 FUNCTIONS
  55
  56 =head2 GetURI
  57
  58 GetURI file and returns the xslt as a string
  59
  60 =cut
  61
  62 sub GetURI {
  63     my ($uri) = @_;
  64     my $string;
  65     $string = get $uri ;
  66     return $string;
  67 }
  68
  69 =head2 transformMARCXML4XSLT
  70
  71 Replaces codes with authorized values in a MARC::Record object
  72
  73 =cut
  74
  75 sub transformMARCXML4XSLT {
  76     my ($biblionumber, $record) = @_;
  77     my $frameworkcode = GetFrameworkCode($biblionumber) || '';
  78     my $tagslib = &GetMarcStructure(1,$frameworkcode);
  79     my @fields;
  80     # FIXME: wish there was a better way to handle exceptions
  81     eval {
  82         @fields = $record->fields();
  83     };
  84     if ($@) { warn "PROBLEM WITH RECORD"; next; }
  85     my $av = getAuthorisedValues4MARCSubfields($frameworkcode);
  86     foreach my $tag ( keys %$av ) {
  87         foreach my $field ( $record->field( $tag ) ) {
  88             if ( $av->{ $tag } ) {
  89                 my @new_subfields = ();
  90                 for my $subfield ( $field->subfields() ) {
  91                     my ( $letter, $value ) = @$subfield;
  92                     $value = GetAuthorisedValueDesc( $tag, $letter, $value, '', $tagslib )
  93                         if $av->{ $tag }->{ $letter };
  94                     push( @new_subfields, $letter, $value );
  95                 }
  96                 $field ->replace_with( MARC::Field->new(
  97                     $tag,
  98                     $field->indicator(1),
  99                     $field->indicator(2),
 100                     @new_subfields
 101                 ) );
 102             }
 103         }
 104     }
 105     return $record;
 106 }
 107
 108 =head2 getAuthorisedValues4MARCSubfields
 109
 110 Returns a ref of hash of ref of hash for tag -> letter controled by authorised values
 111
 112 =cut
 113
 114 # Cache for tagfield-tagsubfield to decode per framework.
 115 # Should be preferably be placed in Koha-core...
 116 my %authval_per_framework;
 117
 118 sub getAuthorisedValues4MARCSubfields {
 119     my ($frameworkcode) = @_;
 120     unless ( $authval_per_framework{ $frameworkcode } ) {
 121         my $dbh = C4::Context->dbh;
 122         my $sth = $dbh->prepare("SELECT DISTINCT tagfield, tagsubfield
 123                                  FROM marc_subfield_structure
 124                                  WHERE authorised_value IS NOT NULL
 125                                    AND authorised_value!=''
 126                                    AND frameworkcode=?");
 127         $sth->execute( $frameworkcode );
 128         my $av = { };
 129         while ( my ( $tag, $letter ) = $sth->fetchrow() ) {
 130             $av->{ $tag }->{ $letter } = 1;
 131         }
 132         $authval_per_framework{ $frameworkcode } = $av;
 133     }
 134     return $authval_per_framework{ $frameworkcode };
 135 }
 136
 137 my $stylesheet;
 138
 139 sub XSLTParse4Display {
 140     my ( $biblionumber, $orig_record, $xslsyspref, $fixamps, $hidden_items ) = @_;
 141     my $xslfilename = C4::Context->preference($xslsyspref);
 142     if ( $xslfilename =~ /^\s*"?default"?\s*$/i ) {
 143         my $htdocs;
 144         my $theme;
 145         my $lang = C4::Templates::_current_language();
 146         my $xslfile;
 147         if ($xslsyspref eq "XSLTDetailsDisplay") {
 148             $htdocs  = C4::Context->config('intrahtdocs');
 149             $theme   = C4::Context->preference("template");
 150             $xslfile = C4::Context->preference('marcflavour') .
 151                        "slim2intranetDetail.xsl";
 152         } elsif ($xslsyspref eq "XSLTResultsDisplay") {
 153             $htdocs  = C4::Context->config('intrahtdocs');
 154             $theme   = C4::Context->preference("template");
 155             $xslfile = C4::Context->preference('marcflavour') .
 156                         "slim2intranetResults.xsl";
 157         } elsif ($xslsyspref eq "OPACXSLTDetailsDisplay") {
 158             $htdocs  = C4::Context->config('opachtdocs');
 159             $theme   = C4::Context->preference("opacthemes");
 160             $xslfile = C4::Context->preference('marcflavour') .
 161                        "slim2OPACDetail.xsl";
 162         } elsif ($xslsyspref eq "OPACXSLTResultsDisplay") {
 163             $htdocs  = C4::Context->config('opachtdocs');
 164             $theme   = C4::Context->preference("opacthemes");
 165             $xslfile = C4::Context->preference('marcflavour') .
 166                        "slim2OPACResults.xsl";
 167         }
 168         $xslfilename = "$htdocs/$theme/$lang/xslt/$xslfile";
 169         $xslfilename = "$htdocs/$theme/en/xslt/$xslfile" unless ( $lang ne 'en' && -f $xslfilename );
 170         $xslfilename = "$htdocs/prog/$lang/xslt/$xslfile" unless ( -f $xslfilename );
 171         $xslfilename = "$htdocs/prog/en/xslt/$xslfile" unless ( $lang ne 'en' && -f $xslfilename );
 172     }
 173
 174     if ( $xslfilename =~ m/\{langcode\}/ ) {
 175         my $lang = C4::Templates::_current_language();
 176         $xslfilename =~ s/\{langcode\}/$lang/;
 177     }
 178
 179     # grab the XML, run it through our stylesheet, push it out to the browser
 180     my $record = transformMARCXML4XSLT($biblionumber, $orig_record);
 181     #return $record->as_formatted();
 182     my $itemsxml  = buildKohaItemsNamespace($biblionumber, $hidden_items);
 183     my $xmlrecord = $record->as_xml(C4::Context->preference('marcflavour'));
 184     my $sysxml = "<sysprefs>\n";
 185     foreach my $syspref ( qw/ hidelostitems OPACURLOpenInNewWindow
 186                               DisplayOPACiconsXSLT URLLinkText viewISBD
 187                               OPACBaseURL TraceCompleteSubfields UseICU
 188                               UseAuthoritiesForTracings TraceSubjectSubdivisions
 189                               Display856uAsImage OPACDisplay856uAsImage
 190                               UseControlNumber IntranetBiblioDefaultView BiblioDefaultView
 191                               singleBranchMode
 192                               AlternateHoldingsField AlternateHoldingsSeparator / )
 193     {
 194         my $sp = C4::Context->preference( $syspref );
 195         next unless defined($sp);
 196         $sysxml .= "<syspref name=\"$syspref\">$sp</syspref>\n";
 197     }
 198     $sysxml .= "</sysprefs>\n";
 199     $xmlrecord =~ s/\<\/record\>/$itemsxml$sysxml\<\/record\>/;
 200     if ($fixamps) { # We need to correct the ampersand entities that Zebra outputs
 201         $xmlrecord =~ s/\&amp;amp;/\&amp;/g;
 202     }
 203     $xmlrecord =~ s/\& /\&amp\; /;
 204     $xmlrecord =~ s/\&amp\;amp\; /\&amp\; /;
 205
 206     my $parser = XML::LibXML->new();
 207     # don't die when you find &, >, etc
 208     $parser->recover_silently(0);
 209     my $source = $parser->parse_string($xmlrecord);
 210     unless ( $stylesheet->{$xslfilename} ) {
 211         my $xslt = XML::LibXSLT->new();
 212         my $style_doc;
 213         if ( $xslfilename =~ /^https?:\/\// ) {
 214             my $xsltstring = GetURI($xslfilename);
 215             $style_doc = $parser->parse_string($xsltstring);
 216         } else {
 217             use Cwd;
 218             $style_doc = $parser->parse_file($xslfilename);
 219         }
 220         $stylesheet->{$xslfilename} = $xslt->parse_stylesheet($style_doc);
 221     }
 222     my $results      = $stylesheet->{$xslfilename}->transform($source);
 223     my $newxmlrecord = $stylesheet->{$xslfilename}->output_string($results);
 224     return $newxmlrecord;
 225 }
 226
 227 sub buildKohaItemsNamespace {
 228     my ($biblionumber, $hidden_items) = @_;
 229
 230     my @items = C4::Items::GetItemsInfo($biblionumber);
 231     if ($hidden_items && @$hidden_items) {
 232         my %hi = map {$_ => 1} @$hidden_items;
 233         @items = grep { !$hi{$_->{itemnumber}} } @items;
 234     }
 235     my $branches = GetBranches();
 236     my $itemtypes = GetItemTypes();
 237     my $xml = '';
 238     for my $item (@items) {
 239         my $status;
 240
 241         my ( $transfertwhen, $transfertfrom, $transfertto ) = C4::Circulation::GetTransfers($item->{itemnumber});
 242
 243         my ( $reservestatus, $reserveitem, undef ) = C4::Reserves::CheckReserves($item->{itemnumber});
 244
 245         if ( $itemtypes->{ $item->{itype} }->{notforloan} || $item->{notforloan} || $item->{onloan} || $item->{wthdrawn} || $item->{itemlost} || $item->{damaged} ||
 246              (defined $transfertwhen && $transfertwhen ne '') || $item->{itemnotforloan} || (defined $reservestatus && $reservestatus eq "Waiting") ){
 247             if ( $item->{notforloan} < 0) {
 248                 $status = "On order";
 249             }
 250             if ( $item->{itemnotforloan} > 0 || $item->{notforloan} > 0 || $itemtypes->{ $item->{itype} }->{notforloan} == 1 ) {
 251                 $status = "reference";
 252             }
 253             if ($item->{onloan}) {
 254                 $status = "Checked out";
 255             }
 256             if ( $item->{wthdrawn}) {
 257                 $status = "Withdrawn";
 258             }
 259             if ($item->{itemlost}) {
 260                 $status = "Lost";
 261             }
 262             if ($item->{damaged}) {
 263                 $status = "Damaged";
 264             }
 265             if (defined $transfertwhen && $transfertwhen ne '') {
 266                 $status = 'In transit';
 267             }
 268             if (defined $reservestatus && $reservestatus eq "Waiting") {
 269                 $status = 'Waiting';
 270             }
 271         } else {
 272             $status = "available";
 273         }
 274         my $homebranch = $item->{homebranch}? xml_escape($branches->{$item->{homebranch}}->{'branchname'}):'';
 275             my $itemcallnumber = xml_escape($item->{itemcallnumber});
 276         $xml.= "<item><homebranch>$homebranch</homebranch>".
 277                 "<status>$status</status>".
 278                 "<itemcallnumber>".$itemcallnumber."</itemcallnumber>"
 279         . "</item>";
 280
 281     }
 282     $xml = "<items xmlns=\"http://www.koha-community.org/items\">".$xml."</items>";
 283     return $xml;
 284 }
 285
 286
 287
 288 1;
 289 __END__
 290
 291 =head1 NOTES
 292
 293 =cut
 294
 295 =head1 AUTHOR
 296
 297 Joshua Ferraro <jmf@liblime.com>
 298
 299 =cut