package C4::Search;
# 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;
require Exporter;
use C4::Context;
use C4::Biblio; # GetMarcFromKohaField
use C4::Koha; # getFacets
use Lingua::Stem;
use C4::Dates qw(format_date);
use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS $DEBUG);
# set the version for version checking
BEGIN {
$VERSION = 3.01;
$DEBUG = ($ENV{DEBUG}) ? 1 : 0;
}
=head1 NAME
C4::Search - Functions for searching the Koha catalog.
=head1 SYNOPSIS
see opac/opac-search.pl or catalogue/search.pl for example of usage
=head1 DESCRIPTION
This module provides the searching facilities for the Koha into a zebra catalog.
=head1 FUNCTIONS
=cut
@ISA = qw(Exporter);
@EXPORT = qw(
&SimpleSearch
&findseealso
&FindDuplicate
&searchResults
&getRecords
&buildQuery
&NZgetRecords
&ModBiblios
);
# make all your functions, whether exported or not;
=head2 findseealso($dbh,$fields);
C<$dbh> is a link to the DB handler.
use C4::Context;
my $dbh =C4::Context->dbh;
C<$fields> is a reference to the fields array
This function modify the @$fields array and add related fields to search on.
=cut
sub findseealso {
my ( $dbh, $fields ) = @_;
my $tagslib = GetMarcStructure( 1 );
for ( my $i = 0 ; $i <= $#{$fields} ; $i++ ) {
my ($tag) = substr( @$fields[$i], 1, 3 );
my ($subfield) = substr( @$fields[$i], 4, 1 );
@$fields[$i] .= ',' . $tagslib->{$tag}->{$subfield}->{seealso}
if ( $tagslib->{$tag}->{$subfield}->{seealso} );
}
}
=head2 FindDuplicate
($biblionumber,$biblionumber,$title) = FindDuplicate($record);
=cut
sub FindDuplicate {
my ($record) = @_;
my $dbh = C4::Context->dbh;
my $result = TransformMarcToKoha( $dbh, $record, '' );
my $sth;
my $query;
my $search;
my $type;
my ( $biblionumber, $title );
# search duplicate on ISBN, easy and fast..
# ... normalize first
if ( $result->{isbn} ) {
$result->{isbn} =~ s/\(.*$//;
$result->{isbn} =~ s/\s+$//;
}
#$search->{'avoidquerylog'}=1;
if ( $result->{isbn} ) {
$query = "isbn=$result->{isbn}";
}
else {
$result->{title} =~ s /\\//g;
$result->{title} =~ s /\"//g;
$result->{title} =~ s /\(//g;
$result->{title} =~ s /\)//g;
# remove valid operators
$result->{title} =~ s/(and|or|not)//g;
$query = "ti,ext=$result->{title}";
$query .= " and itemtype=$result->{itemtype}" if ($result->{itemtype});
if ($result->{author}){
$result->{author} =~ s /\\//g;
$result->{author} =~ s /\"//g;
$result->{author} =~ s /\(//g;
$result->{author} =~ s /\)//g;
# remove valid operators
$result->{author} =~ s/(and|or|not)//g;
$query .= " and au,ext=$result->{author}";
}
}
my ($error,$searchresults) =
SimpleSearch($query); # FIXME :: hardcoded !
my @results;
foreach my $possible_duplicate_record (@$searchresults) {
my $marcrecord =
MARC::Record->new_from_usmarc($possible_duplicate_record);
my $result = TransformMarcToKoha( $dbh, $marcrecord, '' );
# FIXME :: why 2 $biblionumber ?
if ($result){
push @results, $result->{'biblionumber'};
push @results, $result->{'title'};
}
}
return @results;
}
=head2 SimpleSearch
($error,$results) = SimpleSearch($query,@servers);
this function performs a simple search on the catalog using zoom.
=over 2
=item C
* $error is a string which containt the description error if there is one. Else it's empty.
* \@results is an array of marc record.
=item C
=back
my ($error, $marcresults) = SimpleSearch($query);
if (defined $error) {
$template->param(query_error => $error);
warn "error: ".$error;
output_html_with_http_headers $input, $cookie, $template->output;
exit;
}
my $hits = scalar @$marcresults;
my @results;
for(my $i=0;$i<$hits;$i++) {
my %resultsloop;
my $marcrecord = MARC::File::USMARC::decode($marcresults->[$i]);
my $biblio = TransformMarcToKoha(C4::Context->dbh,$marcrecord,'');
#build the hash for the template.
$resultsloop{highlight} = ($i % 2)?(1):(0);
$resultsloop{title} = $biblio->{'title'};
$resultsloop{subtitle} = $biblio->{'subtitle'};
$resultsloop{biblionumber} = $biblio->{'biblionumber'};
$resultsloop{author} = $biblio->{'author'};
$resultsloop{publishercode} = $biblio->{'publishercode'};
$resultsloop{publicationyear} = $biblio->{'publicationyear'};
push @results, \%resultsloop;
}
$template->param(result=>\@results);
=cut
sub SimpleSearch {
my $query = shift;
if (C4::Context->preference('NoZebra')) {
my $result = NZorder(NZanalyse($query))->{'biblioserver'}->{'RECORDS'};
return (undef,$result);
} else {
my @servers = @_;
my @results;
my @tmpresults;
my @zconns;
return ( "No query entered", undef ) unless $query;
#@servers = (C4::Context->config("biblioserver")) unless @servers;
@servers =
("biblioserver") unless @servers
; # FIXME hardcoded value. See catalog/search.pl & opac-search.pl too.
# Connect & Search
for ( my $i = 0 ; $i < @servers ; $i++ ) {
eval {
$zconns[$i] = C4::Context->Zconn( $servers[$i], 1 );
$tmpresults[$i] =
$zconns[$i]
->search( new ZOOM::Query::CCL2RPN( $query, $zconns[$i] ) );
# getting error message if one occured.
my $error =
$zconns[$i]->errmsg() . " ("
. $zconns[$i]->errcode() . ") "
. $zconns[$i]->addinfo() . " "
. $zconns[$i]->diagset();
return ( $error, undef ) if $zconns[$i]->errcode();
};
if ($@) {
# caught a ZOOM::Exception
my $error =
$@->message() . " ("
. $@->code() . ") "
. $@->addinfo() . " "
. $@->diagset();
warn $error;
return ( $error, undef );
}
}
my $hits;
my $ev;
while ( ( my $i = ZOOM::event( \@zconns ) ) != 0 ) {
$ev = $zconns[ $i - 1 ]->last_event();
if ( $ev == ZOOM::Event::ZEND ) {
$hits = $tmpresults[ $i - 1 ]->size();
}
if ( $hits > 0 ) {
for ( my $j = 0 ; $j < $hits ; $j++ ) {
my $record = $tmpresults[ $i - 1 ]->record($j)->raw();
push @results, $record;
}
}
}
return ( undef, \@results );
}
}
# performs the search
sub getRecords {
my (
$koha_query, $simple_query, $sort_by_ref,
$servers_ref, $results_per_page, $offset,
$expanded_facet, $branches, $query_type,
$scan
) = @_;
# warn "Query : $koha_query";
my @servers = @$servers_ref;
my @sort_by = @$sort_by_ref;
# create the zoom connection and query object
my $zconn;
my @zconns;
my @results;
my $results_hashref = ();
### FACETED RESULTS
my $facets_counter = ();
my $facets_info = ();
my $facets = getFacets();
#### INITIALIZE SOME VARS USED CREATE THE FACETED RESULTS
my @facets_loop; # stores the ref to array of hashes for template
for ( my $i = 0 ; $i < @servers ; $i++ ) {
$zconns[$i] = C4::Context->Zconn( $servers[$i], 1 );
# perform the search, create the results objects
# if this is a local search, use the $koha-query, if it's a federated one, use the federated-query
my $query_to_use;
if ( $servers[$i] =~ /biblioserver/ ) {
$query_to_use = $koha_query;
}
else {
$query_to_use = $simple_query;
}
#$query_to_use = $simple_query if $scan;
#warn $simple_query if ($scan && $DEBUG);
# check if we've got a query_type defined
eval {
if ($query_type)
{
if ( $query_type =~ /^ccl/ ) {
$query_to_use =~
s/\:/\=/g; # change : to = last minute (FIXME)
# warn "CCL : $query_to_use";
$results[$i] =
$zconns[$i]->search(
new ZOOM::Query::CCL2RPN( $query_to_use, $zconns[$i] )
);
}
elsif ( $query_type =~ /^cql/ ) {
# warn "CQL : $query_to_use";
$results[$i] =
$zconns[$i]->search(
new ZOOM::Query::CQL( $query_to_use, $zconns[$i] ) );
}
elsif ( $query_type =~ /^pqf/ ) {
# warn "PQF : $query_to_use";
$results[$i] =
$zconns[$i]->search(
new ZOOM::Query::PQF( $query_to_use, $zconns[$i] ) );
}
}
else {
if ($scan) {
# warn "preparing to scan:$query_to_use";
$results[$i] =
$zconns[$i]->scan(
new ZOOM::Query::CCL2RPN( $query_to_use, $zconns[$i] )
);
}
else {
# warn "LAST : $query_to_use";
$results[$i] =
$zconns[$i]->search(
new ZOOM::Query::CCL2RPN( $query_to_use, $zconns[$i] )
);
}
}
};
if ($@) {
warn "WARNING: query problem with $query_to_use " . $@;
}
# concatenate the sort_by limits and pass them to the results object
my $sort_by;
foreach my $sort (@sort_by) {
if ($sort eq "author_az") {
$sort_by.="1=1003 sort( "yaz", $sort_by ) < 0) {
warn "WARNING sort $sort_by failed";
}
}
}
while ( ( my $i = ZOOM::event( \@zconns ) ) != 0 ) {
my $ev = $zconns[ $i - 1 ]->last_event();
if ( $ev == ZOOM::Event::ZEND ) {
my $size = $results[ $i - 1 ]->size();
if ( $size > 0 ) {
my $results_hash;
#$results_hash->{'server'} = $servers[$i-1];
# loop through the results
$results_hash->{'hits'} = $size;
my $times;
if ( $offset + $results_per_page <= $size ) {
$times = $offset + $results_per_page;
}
else {
$times = $size;
}
for ( my $j = $offset ; $j < $times ; $j++ )
{ #(($offset+$count<=$size) ? ($offset+$count):$size) ; $j++){
my $records_hash;
my $record;
my $facet_record;
## This is just an index scan
if ($scan) {
my ( $term, $occ ) = $results[ $i - 1 ]->term($j);
# here we create a minimal MARC record and hand it off to the
# template just like a normal result ... perhaps not ideal, but
# it works for now
my $tmprecord = MARC::Record->new();
$tmprecord->encoding('UTF-8');
my $tmptitle;
# srote the minimal record in author/title (depending on MARC flavour)
if ( C4::Context->preference("marcflavour") eq
"UNIMARC" )
{
$tmptitle = MARC::Field->new(
'200', ' ', ' ',
a => $term,
f => $occ
);
}
else {
$tmptitle = MARC::Field->new(
'245', ' ', ' ',
a => $term,
b => $occ
);
}
$tmprecord->append_fields($tmptitle);
$results_hash->{'RECORDS'}[$j] =
$tmprecord->as_usmarc();
}
else {
$record = $results[ $i - 1 ]->record($j)->raw();
#warn "RECORD $j:".$record;
$results_hash->{'RECORDS'}[$j] =
$record; # making a reference to a hash
# Fill the facets while we're looping
$facet_record = MARC::Record->new_from_usmarc($record);
#warn $servers[$i-1].$facet_record->title();
for ( my $k = 0 ; $k <= @$facets ; $k++ ) {
if ( $facets->[$k] ) {
my @fields;
for my $tag ( @{ $facets->[$k]->{'tags'} } ) {
push @fields, $facet_record->field($tag);
}
for my $field (@fields) {
my @subfields = $field->subfields();
for my $subfield (@subfields) {
my ( $code, $data ) = @$subfield;
if ( $code eq
$facets->[$k]->{'subfield'} )
{
$facets_counter->{ $facets->[$k]
->{'link_value'} }->{$data}++;
}
}
}
$facets_info->{ $facets->[$k]->{'link_value'} }
->{'label_value'} =
$facets->[$k]->{'label_value'};
$facets_info->{ $facets->[$k]->{'link_value'} }
->{'expanded'} = $facets->[$k]->{'expanded'};
}
}
}
}
$results_hashref->{ $servers[ $i - 1 ] } = $results_hash;
}
#print "connection ", $i-1, ": $size hits";
#print $results[$i-1]->record(0)->render() if $size > 0;
# BUILD FACETS
for my $link_value (
sort { $facets_counter->{$b} <=> $facets_counter->{$a} }
keys %$facets_counter
)
{
my $expandable;
my $number_of_facets;
my @this_facets_array;
for my $one_facet (
sort {
$facets_counter->{$link_value}
->{$b} <=> $facets_counter->{$link_value}->{$a}
} keys %{ $facets_counter->{$link_value} }
)
{
$number_of_facets++;
if ( ( $number_of_facets < 6 )
|| ( $expanded_facet eq $link_value )
|| ( $facets_info->{$link_value}->{'expanded'} ) )
{
# sanitize the link value ), ( will cause errors with CCL
my $facet_link_value = $one_facet;
$facet_link_value =~ s/(\(|\))/ /g;
# fix the length that will display in the label
my $facet_label_value = $one_facet;
$facet_label_value = substr( $one_facet, 0, 20 ) . "..."
unless length($facet_label_value) <= 20;
# well, if it's a branch, label by the name, not the code
if ( $link_value =~ /branch/ ) {
$facet_label_value =
$branches->{$one_facet}->{'branchname'};
}
# but we're down with the whole label being in the link's title
my $facet_title_value = $one_facet;
push @this_facets_array,
(
{
facet_count =>
$facets_counter->{$link_value}->{$one_facet},
facet_label_value => $facet_label_value,
facet_title_value => $facet_title_value,
facet_link_value => $facet_link_value,
type_link_value => $link_value,
},
);
}
}
unless ( $facets_info->{$link_value}->{'expanded'} ) {
$expandable = 1
if ( ( $number_of_facets > 6 )
&& ( $expanded_facet ne $link_value ) );
}
push @facets_loop,
(
{
type_link_value => $link_value,
type_id => $link_value . "_id",
type_label =>
$facets_info->{$link_value}->{'label_value'},
facets => \@this_facets_array,
expandable => $expandable,
expand => $link_value,
}
);
}
}
}
return ( undef, $results_hashref, \@facets_loop );
}
# STOPWORDS
sub _remove_stopwords {
my ($operand,$index) = @_;
my @stopwords_removed;
# phrase and exact-qualified indexes shouldn't have stopwords removed
if ($index!~m/phr|ext/){
# remove stopwords from operand : parse all stopwords & remove them (case insensitive)
# we use IsAlpha unicode definition, to deal correctly with diacritics.
# otherwise, a French word like "leçon" woudl be split into "le" "çon", le
# is an empty word, we'd get "çon" and wouldn't find anything...
foreach (keys %{C4::Context->stopwords}) {
next if ($_ =~/(and|or|not)/); # don't remove operators
if ($operand =~ /(\P{IsAlpha}$_\P{IsAlpha}|^$_\P{IsAlpha}|\P{IsAlpha}$_$)/) {
$operand=~ s/\P{IsAlpha}$_\P{IsAlpha}/ /gi;
$operand=~ s/^$_\P{IsAlpha}/ /gi;
$operand=~ s/\P{IsAlpha}$_$/ /gi;
push @stopwords_removed, $_;
}
}
}
return ($operand, \@stopwords_removed);
}
# TRUNCATION
sub _detect_truncation {
my ($operand,$index) = @_;
my (@nontruncated,@righttruncated,@lefttruncated,@rightlefttruncated,@regexpr);
$operand =~s/^ //g;
my @wordlist= split (/\s/,$operand);
foreach my $word (@wordlist){
if ($word=~s/^\*([^\*]+)\*$/$1/){
push @rightlefttruncated,$word;
}
elsif($word=~s/^\*([^\*]+)$/$1/){
push @lefttruncated,$word;
}
elsif ($word=~s/^([^\*]+)\*$/$1/){
push @righttruncated,$word;
}
elsif (index($word,"*")<0){
push @nontruncated,$word;
}
else {
push @regexpr,$word;
}
}
return (\@nontruncated,\@righttruncated,\@lefttruncated,\@rightlefttruncated,\@regexpr);
}
sub _build_stemmed_operand {
my ($operand) = @_;
my $stemmed_operand;
# FIXME: the locale should be set based on the user's language and/or search choice
my $stemmer = Lingua::Stem->new( -locale => 'EN-US' );
# FIXME: these should be stored in the db so the librarian can modify the behavior
$stemmer->add_exceptions(
{
'and' => 'and',
'or' => 'or',
'not' => 'not',
}
);
my @words = split( / /, $operand );
my $stems = $stemmer->stem(@words);
for my $stem (@$stems) {
$stemmed_operand .= "$stem";
$stemmed_operand .= "?" unless ( $stem =~ /(and$|or$|not$)/ ) || ( length($stem) < 3 );
$stemmed_operand .= " ";
}
#warn "STEMMED OPERAND: $stemmed_operand";
return $stemmed_operand;
}
sub _build_weighted_query {
# FIELD WEIGHTING - This is largely experimental stuff. What I'm committing works
# pretty well but will work much better when we have an actual query parser
my ($operand,$stemmed_operand,$index) = @_;
my $stemming = C4::Context->preference("QueryStemming") || 0;
my $weight_fields = C4::Context->preference("QueryWeightFields") || 0;
my $fuzzy_enabled = C4::Context->preference("QueryFuzzy") || 0;
my $weighted_query .= "(rk=("; # Specifies that we're applying rank
# Keyword, or, no index specified
if ( ( $index eq 'kw' ) || ( !$index ) ) {
$weighted_query .= "Title-cover,ext,r1=\"$operand\""; # exact title-cover
$weighted_query .= " or ti,ext,r2=\"$operand\""; # exact title
$weighted_query .= " or ti,phr,r3=\"$operand\""; # phrase title
#$weighted_query .= " or any,ext,r4=$operand"; # exact any
#$weighted_query .=" or kw,wrdl,r5=\"$operand\""; # word list any
$weighted_query .= " or wrd,fuzzy,r8=\"$operand\"" if $fuzzy_enabled; # add fuzzy, word list
$weighted_query .= " or wrd,right-Truncation,r9=\"$stemmed_operand\"" if ($stemming and $stemmed_operand); # add stemming, right truncation
# embedded sorting: 0 a-z; 1 z-a
# $weighted_query .= ") or (sort1,aut=1";
}
elsif ( $index eq 'bc' ) {
$weighted_query .= "bc=\"$operand\"";
}
# if the index already has more than one qualifier, just wrap the operand
# in quotes and pass it back
elsif ($index =~ ',') {
$weighted_query .=" $index=\"$operand\"";
}
#TODO: build better cases based on specific search indexes
else {
$weighted_query .= " $index,ext,r1=\"$operand\""; # exact index
#$weighted_query .= " or (title-sort-az=0 or $index,startswithnt,st-word,r3=$operand #)";
$weighted_query .= " or $index,phr,r3=\"$operand\""; # phrase index
$weighted_query .= " or $index,rt,wrd,r3=\"$operand\""; # word list index
}
$weighted_query .= "))"; # close rank specification
return $weighted_query;
}
# build the query itself
sub buildQuery {
my ( $operators, $operands, $indexes, $limits, $sort_by, $scan) = @_;
my @operators = @$operators if $operators;
my @indexes = @$indexes if $indexes;
my @operands = @$operands if $operands;
my @limits = @$limits if $limits;
my @sort_by = @$sort_by if $sort_by;
my $stemming = C4::Context->preference("QueryStemming") || 0;
my $auto_truncation = C4::Context->preference("QueryAutoTruncate") || 0;
my $weight_fields = C4::Context->preference("QueryWeightFields") || 0;
my $fuzzy_enabled = C4::Context->preference("QueryFuzzy") || 0;
# no stemming/weight/fuzzy in NoZebra
if (C4::Context->preference("NoZebra")) {
$stemming =0;
$weight_fields=0;
$fuzzy_enabled=0;
}
my $remove_stopwords = C4::Context->preference("QueryRemoveStopwords") || 0;
my $query = $operands[0];
my $simple_query = $operands[0];
my $query_cgi;
my $query_desc;
my $query_type;
my $limit;
my $limit_cgi;
my $limit_desc;
my $stopwords_removed;
# for handling ccl, cql, pqf queries in diagnostic mode, skip the rest of the steps
# DIAGNOSTIC ONLY!!
if ( $query =~ /^ccl=/ ) {
return ( undef, $', $', $', $', '', '', '', '', 'ccl' );
}
if ( $query =~ /^cql=/ ) {
return ( undef, $', $', $', $', '', '', '', '', 'cql' );
}
if ( $query =~ /^pqf=/ ) {
return ( undef, $', $', $', $', '', '', '', '', 'pqf' );
}
# pass nested queries directly
if ( $query =~ /(\(|\))/ ) {
return ( undef, $query, $simple_query, $query_cgi, $query, $limit, $limit_cgi, $limit_desc, $stopwords_removed, 'ccl' );
}
# form-based queries are limited to non-nested at a specific depth, so we can easily
# modify the incoming query operands and indexes to do stemming and field weighting
# Once we do so, we'll end up with a value in $query, just like if we had an
# incoming $query from the user
else {
$query = ""; # clear it out so we can populate properly with field-weighted stemmed query
my $previous_operand; # a flag used to keep track if there was a previous query
# if there was, we can apply the current operator
# for every operand
for ( my $i = 0 ; $i <= @operands ; $i++ ) {
# COMBINE OPERANDS, INDEXES AND OPERATORS
if ( $operands[$i] ) {
# a flag to determine whether or not to add the index to the query
my $indexes_set;
# if the user is sophisticated enough to specify an index, turn off some defaults
if ($operands[$i] =~ /(:|=)/ || $scan) {
$weight_fields = 0;
$stemming = 0;
$remove_stopwords = 0;
}
my $operand = $operands[$i];
my $index = $indexes[$i];
# some helpful index modifs
my $index_plus = "$index:" if $index;
my $index_plus_comma="$index," if $index;
# Remove Stopwords
if ($remove_stopwords) {
($operand, $stopwords_removed) = _remove_stopwords($operand,$index);
warn "OPERAND w/out STOPWORDS: >$operand<" if $DEBUG;
warn "REMOVED STOPWORDS: @$stopwords_removed" if ($stopwords_removed && $DEBUG);
}
# Detect Truncation
my ($nontruncated,$righttruncated,$lefttruncated,$rightlefttruncated,$regexpr);
my $truncated_operand;
($nontruncated,$righttruncated,$lefttruncated,$rightlefttruncated,$regexpr) = _detect_truncation($operand,$index);
warn "TRUNCATION: NON:>@$nontruncated< RIGHT:>@$righttruncated< LEFT:>@$lefttruncated< RIGHTLEFT:>@$rightlefttruncated< REGEX:>@$regexpr<" if $DEBUG;
# Apply Truncation
if (scalar(@$righttruncated)+scalar(@$lefttruncated)+scalar(@$rightlefttruncated)>0){
# don't field weight or add the index to the query, we do it here
$indexes_set = 1;
undef $weight_fields;
my $previous_truncation_operand;
if (scalar(@$nontruncated)>0) {
$truncated_operand.= "$index_plus @$nontruncated ";
$previous_truncation_operand = 1;
}
if (scalar(@$righttruncated)>0){
$truncated_operand .= "and " if $previous_truncation_operand;
$truncated_operand .= "$index_plus_comma"."rtrn:@$righttruncated ";
$previous_truncation_operand = 1;
}
if (scalar(@$lefttruncated)>0){
$truncated_operand .= "and " if $previous_truncation_operand;
$truncated_operand .= "$index_plus_comma"."ltrn:@$lefttruncated ";
$previous_truncation_operand = 1;
}
if (scalar(@$rightlefttruncated)>0){
$truncated_operand .= "and " if $previous_truncation_operand;
$truncated_operand .= "$index_plus_comma"."rltrn:@$rightlefttruncated ";
$previous_truncation_operand = 1;
}
}
$operand = $truncated_operand if $truncated_operand;
warn "TRUNCATED OPERAND: >$truncated_operand<" if $DEBUG;
# Handle Stemming
my $stemmed_operand;
$stemmed_operand = _build_stemmed_operand($operand) if $stemming;
warn "STEMMED OPERAND: >$stemmed_operand<" if $DEBUG;
# Handle Field Weighting
my $weighted_operand;
$weighted_operand = _build_weighted_query($operand,$stemmed_operand,$index) if $weight_fields;
warn "FIELD WEIGHTED OPERAND: >$weighted_operand<" if $DEBUG;
$operand = $weighted_operand if $weight_fields;
$indexes_set = 1 if $weight_fields;
# If there's a previous operand, we need to add an operator
if ($previous_operand) {
# user-specified operator
if ( $operators[$i-1] ) {
$query .= " $operators[$i-1] ";
$query .= " $index_plus " unless $indexes_set;
$query .= " $operand";
$query_cgi .="&op=$operators[$i-1]";
$query_cgi .="&idx=$index" if $index;
$query_cgi .="&q=$operands[$i]" if $operands[$i];
$query_desc .=" $operators[$i-1] $index_plus $operands[$i]";
}
# the default operator is and
else {
$query .= " and ";
$query .= "$index_plus " unless $indexes_set;
$query .= "$operand";
$query_cgi .="&op=and&idx=$index" if $index;
$query_cgi .="&q=$operands[$i]" if $operands[$i];
$query_desc .= " and $index_plus $operands[$i]";
}
}
# there isn't a pervious operand, don't need an operator
else {
# field-weighted queries already have indexes set
$query .=" $index_plus " unless $indexes_set;
$query .= $operand;
$query_desc .= " $index_plus $operands[$i]";
$query_cgi.="&idx=$index" if $index;
$query_cgi.="&q=$operands[$i]" if $operands[$i];
$previous_operand = 1;
}
} #/if $operands
} # /for
}
warn "QUERY BEFORE LIMITS: >$query<" if $DEBUG;
# add limits
my $group_OR_limits;
my $availability_limit;
foreach my $this_limit (@limits) {
if ( $this_limit =~ /available/ ) {
# available is defined as (items.notloan is NULL) and (items.itemlost > 0 or NULL) (last clause handles NULL values for lost in zebra)
$availability_limit .="( ( allrecords,AlwaysMatches='' not onloan,AlwaysMatches='') and ((lost,st-numeric gt 0) or ( allrecords,AlwaysMatches='' not lost,AlwaysMatches='')) )";
$limit_cgi .= "&limit=available";
$limit_desc .="";
}
# these are treated as OR
elsif ( $this_limit =~ /mc/ ) {
$group_OR_limits .= " or " if $group_OR_limits;
$limit_desc .=" or " if $group_OR_limits;
$group_OR_limits .= "$this_limit";
$limit_cgi .="&limit=$this_limit";
$limit_desc .= "$this_limit";
}
# regular old limits
else {
$limit .= " and " if $limit || $query;
$limit .= "$this_limit";
$limit_cgi .="&limit=$this_limit";
$limit_desc .=" and $this_limit";
}
}
if ($group_OR_limits) {
$limit.=" and " if ($query || $limit );
$limit.="($group_OR_limits)";
}
if ($availability_limit) {
$limit.=" not " if ($query || $limit );
$limit.="$availability_limit";
}
# normalize the strings
$query =~ s/:/=/g;
$limit =~ s/:/=/g;
for ($query, $query_desc, $limit, $limit_desc) {
$_ =~ s/ / /g; # remove extra spaces
$_ =~ s/^ //g; # remove any beginning spaces
$_ =~ s/ $//g; # remove any ending spaces
$_ =~ s/==/=/g; # remove double == from query
}
$query_cgi =~ s/^&//;
# append the limit to the query
$query .=" ".$limit;
warn "query=$query and limit=$limit" if $DEBUG;
warn "QUERY:".$query if $DEBUG;
warn "QUERY CGI:".$query_cgi if $DEBUG;
warn "QUERY DESC:".$query_desc if $DEBUG;
warn "LIMIT:".$limit if $DEBUG;
warn "LIMIT CGI:".$limit_cgi if $DEBUG;
warn "LIMIT DESC:".$limit_desc if $DEBUG;
return ( undef, $query,$simple_query,$query_cgi,$query_desc,$limit,$limit_cgi,$limit_desc,$stopwords_removed,$query_type );
}
# IMO this subroutine is pretty messy still -- it's responsible for
# building the HTML output for the template
sub searchResults {
my ( $searchdesc, $hits, $results_per_page, $offset, @marcresults ) = @_;
my $dbh = C4::Context->dbh;
my $toggle;
my $even = 1;
my @newresults;
my $span_terms_hashref;
for my $span_term ( split( / /, $searchdesc ) ) {
$span_term =~ s/(.*=|\)|\(|\+|\.)//g;
$span_terms_hashref->{$span_term}++;
}
#Build branchnames hash
#find branchname
#get branch information.....
my %branches;
my $bsth =
$dbh->prepare("SELECT branchcode,branchname FROM branches")
; # FIXME : use C4::Koha::GetBranches
$bsth->execute();
while ( my $bdata = $bsth->fetchrow_hashref ) {
$branches{ $bdata->{'branchcode'} } = $bdata->{'branchname'};
}
#Build itemtype hash
#find itemtype & itemtype image
my %itemtypes;
$bsth =
$dbh->prepare("SELECT itemtype,description,imageurl,summary,notforloan FROM itemtypes");
$bsth->execute();
while ( my $bdata = $bsth->fetchrow_hashref ) {
$itemtypes{ $bdata->{'itemtype'} }->{description} =
$bdata->{'description'};
$itemtypes{ $bdata->{'itemtype'} }->{imageurl} = $bdata->{'imageurl'};
$itemtypes{ $bdata->{'itemtype'} }->{summary} = $bdata->{'summary'};
$itemtypes{ $bdata->{'itemtype'} }->{notforloan} = $bdata->{'notforloan'};
}
#search item field code
my $sth = $dbh->prepare("SELECT tagfield FROM marc_subfield_structure WHERE kohafield LIKE 'items.itemnumber'");
$sth->execute;
my ($itemtag) = $sth->fetchrow;
## find column names of items related to MARC
my $sth2 = $dbh->prepare("SHOW COLUMNS FROM items");
$sth2->execute;
my %subfieldstosearch;
while ( ( my $column ) = $sth2->fetchrow ) {
my ( $tagfield, $tagsubfield ) =
&GetMarcFromKohaField( "items." . $column, "" );
$subfieldstosearch{$column} = $tagsubfield;
}
my $times;
if ( $hits && $offset + $results_per_page <= $hits ) {
$times = $offset + $results_per_page;
}
else {
$times = $hits;
}
for ( my $i = $offset ; $i <= $times - 1 ; $i++ ) {
my $marcrecord;
$marcrecord = MARC::File::USMARC::decode( $marcresults[$i] );
my $oldbiblio = TransformMarcToKoha( $dbh, $marcrecord, '' );
$oldbiblio->{result_number} = $i+1;
# add image url if there is one
if ( $itemtypes{ $oldbiblio->{itemtype} }->{imageurl} =~ /^http:/ ) {
$oldbiblio->{imageurl} =
$itemtypes{ $oldbiblio->{itemtype} }->{imageurl};
$oldbiblio->{description} =
$itemtypes{ $oldbiblio->{itemtype} }->{description};
}
else {
$oldbiblio->{imageurl} =
getitemtypeimagesrc() . "/"
. $itemtypes{ $oldbiblio->{itemtype} }->{imageurl}
if ( $itemtypes{ $oldbiblio->{itemtype} }->{imageurl} );
$oldbiblio->{description} =
$itemtypes{ $oldbiblio->{itemtype} }->{description};
}
#
# build summary if there is one (the summary is defined in itemtypes table
#
if ($itemtypes{ $oldbiblio->{itemtype} }->{summary}) {
my $summary = $itemtypes{ $oldbiblio->{itemtype} }->{summary};
my @fields = $marcrecord->fields();
foreach my $field (@fields) {
my $tag = $field->tag();
my $tagvalue = $field->as_string();
$summary =~ s/\[(.?.?.?.?)$tag\*(.*?)]/$1$tagvalue$2\[$1$tag$2]/g;
unless ($tag<10) {
my @subf = $field->subfields;
for my $i (0..$#subf) {
my $subfieldcode = $subf[$i][0];
my $subfieldvalue = $subf[$i][1];
my $tagsubf = $tag.$subfieldcode;
$summary =~ s/\[(.?.?.?.?)$tagsubf(.*?)]/$1$subfieldvalue$2\[$1$tagsubf$2]/g;
}
}
}
$summary =~ s/\[(.*?)]//g;
$summary =~ s/\n/> link
$oldbiblio->{'author_nospan'} = $oldbiblio->{'author'};
foreach my $term ( keys %$span_terms_hashref ) {
my $old_term = $term;
if ( length($term) > 3 ) {
$term =~ s/(.*=|\)|\(|\+|\.|\?|\[|\])//g;
$term =~ s/\\//g;
$term =~ s/\*//g;
#FIXME: is there a better way to do this?
$oldbiblio->{'title'} =~ s/$term/$&<\/span>/gi;
$oldbiblio->{'subtitle'} =~
s/$term/$&<\/span>/gi;
$oldbiblio->{'author'} =~ s/$term/$&<\/span>/gi;
$oldbiblio->{'publishercode'} =~ s/$term/$&<\/span>/gi;
$oldbiblio->{'place'} =~ s/$term/$&<\/span>/gi;
$oldbiblio->{'pages'} =~ s/$term/$&<\/span>/gi;
$oldbiblio->{'notes'} =~ s/$term/$&<\/span>/gi;
$oldbiblio->{'size'} =~ s/$term/$&<\/span>/gi;
}
}
if ( $i % 2 ) {
$toggle = "#ffffcc";
}
else {
$toggle = "white";
}
$oldbiblio->{'toggle'} = $toggle;
my @fields = $marcrecord->field($itemtag);
my @items_loop;
my $items;
my $ordered_count = 0;
my $onloan_count = 0;
my $wthdrawn_count = 0;
my $itemlost_count = 0;
my $norequests = 1;
#
# check the loan status of the item :
# it is not stored in the MARC record, for pref (zebra reindexing)
# reason. Thus, we have to get the status from a specific SQL query
#
my $sth_issue = $dbh->prepare("
SELECT date_due,returndate
FROM issues
WHERE itemnumber=? AND returndate IS NULL");
my $items_count=scalar(@fields);
foreach my $field (@fields) {
my $item;
foreach my $code ( keys %subfieldstosearch ) {
$item->{$code} = $field->subfield( $subfieldstosearch{$code} );
}
$sth_issue->execute($item->{itemnumber});
$item->{due_date} = format_date($sth_issue->fetchrow) if $sth_issue->fetchrow;
$item->{onloan} = 1 if $item->{due_date};
# at least one item can be reserved : suppose no
$norequests = 1;
if ( $item->{wthdrawn} ) {
$wthdrawn_count++;
$items->{ $item->{'homebranch'}.'--'.$item->{'itemcallnumber'} }->{unavailable}=1;
$items->{ $item->{'homebranch'}.'--'.$item->{'itemcallnumber'} }->{wthdrawn}=1;
}
elsif ( $item->{itemlost} ) {
$itemlost_count++;
$items->{ $item->{'homebranch'}.'--'.$item->{'itemcallnumber'} }->{unavailable}=1;
$items->{ $item->{'homebranch'}.'--'.$item->{'itemcallnumber'} }->{itemlost}=1;
}
unless ( $item->{notforloan}) {
# OK, this one can be issued, so at least one can be reserved
$norequests = 0;
}
if ( ( $item->{onloan} ) && ( $item->{onloan} != '0000-00-00' ) )
{
$items->{ $item->{'homebranch'}.'--'.$item->{'itemcallnumber'} }->{unavailable}=1;
$items->{ $item->{'homebranch'}.'--'.$item->{'itemcallnumber'} }->{onloancount} = 1;
$items->{ $item->{'homebranch'}.'--'.$item->{'itemcallnumber'} }->{due_date} = $item->{due_date};
$onloan_count++;
}
if ( $item->{'homebranch'} ) {
$items->{ $item->{'homebranch'}.'--'.$item->{'itemcallnumber'} }->{count}++;
}
# Last resort
elsif ( $item->{'holdingbranch'} ) {
$items->{ $item->{'holdingbranch'} }->{count}++;
}
$items->{ $item->{'homebranch'}.'--'.$item->{'itemcallnumber'} }->{itemcallnumber} = $item->{itemcallnumber};
$items->{ $item->{'homebranch'}.'--'.$item->{'itemcallnumber'} }->{location} = $item->{location};
$items->{ $item->{'homebranch'}.'--'.$item->{'itemcallnumber'} }->{branchcode} = $item->{homebranch};
} # notforloan, item level and biblioitem level
# last check for norequest : if itemtype is notforloan, it can't be reserved either, whatever the items
$norequests = 1 if $itemtypes{$oldbiblio->{itemtype}}->{notforloan};
my $itemscount;
for my $key ( sort keys %$items ) {
$itemscount++;
my $this_item = {
branchname => $branches{$items->{$key}->{branchcode}},
branchcode => $items->{$key}->{branchcode},
count => $items->{$key}->{count},
itemcallnumber => $items->{$key}->{itemcallnumber},
location => $items->{$key}->{location},
onloancount => $items->{$key}->{onloancount},
due_date => $items->{$key}->{due_date},
wthdrawn => $items->{$key}->{wthdrawn},
lost => $items->{$key}->{itemlost},
};
# only show the number specified by the user
my $maxitems = (C4::Context->preference('maxItemsinSearchResults')) ? C4::Context->preference('maxItemsinSearchResults')- 1 : 1;
push @items_loop, $this_item unless $itemscount > $maxitems;;
}
$oldbiblio->{norequests} = $norequests;
$oldbiblio->{items_count} = $items_count;
$oldbiblio->{items_loop} = \@items_loop;
$oldbiblio->{onloancount} = $onloan_count;
$oldbiblio->{wthdrawncount} = $wthdrawn_count;
$oldbiblio->{itemlostcount} = $itemlost_count;
$oldbiblio->{orderedcount} = $ordered_count;
$oldbiblio->{isbn} =~ s/-//g; # deleting - in isbn to enable amazon content
push( @newresults, $oldbiblio );
}
return @newresults;
}
#----------------------------------------------------------------------
#
# Non-Zebra GetRecords#
#----------------------------------------------------------------------
=head2 NZgetRecords
NZgetRecords has the same API as zera getRecords, even if some parameters are not managed
=cut
sub NZgetRecords {
my ($query,$simple_query,$sort_by_ref,$servers_ref,$results_per_page,$offset,$expanded_facet,$branches,$query_type,$scan) = @_;
my $result = NZanalyse($query);
return (undef,NZorder($result,@$sort_by_ref[0],$results_per_page,$offset),undef);
}
=head2 NZanalyse
NZanalyse : get a CQL string as parameter, and returns a list of biblionumber;title,biblionumber;title,...
the list is built from an inverted index in the nozebra SQL table
note that title is here only for convenience : the sorting will be very fast when requested on title
if the sorting is requested on something else, we will have to reread all results, and that may be longer.
=cut
sub NZanalyse {
my ($string,$server) = @_;
# $server contains biblioserver or authorities, depending on what we search on.
#warn "querying : $string on $server";
$server='biblioserver' unless $server;
# if we have a ", replace the content to discard temporarily any and/or/not inside
my $commacontent;
if ($string =~/"/) {
$string =~ s/"(.*?)"/__X__/;
$commacontent = $1;
warn "commacontent : $commacontent" if $DEBUG;
}
# split the query string in 3 parts : X AND Y means : $left="X", $operand="AND" and $right="Y"
# then, call again NZanalyse with $left and $right
# (recursive until we find a leaf (=> something without and/or/not)
# delete repeated operator... Would then go in infinite loop
while ($string =~s/( and| or| not| AND| OR| NOT)\1/$1/g){
}
#process parenthesis before.
if ($string =~ /^\s*\((.*)\)(( and | or | not | AND | OR | NOT )(.*))?/){
my $left = $1;
# warn "left :".$left;
my $right = $4;
my $operator = lc($3); # FIXME: and/or/not are operators, not operands
my $leftresult = NZanalyse($left,$server);
if ($operator) {
my $rightresult = NZanalyse($right,$server);
# OK, we have the results for right and left part of the query
# depending of operand, intersect, union or exclude both lists
# to get a result list
if ($operator eq ' and ') {
my @leftresult = split /;/, $leftresult;
# my @rightresult = split /;/,$leftresult;
my $finalresult;
# parse the left results, and if the biblionumber exist in the right result, save it in finalresult
# the result is stored twice, to have the same weight for AND than OR.
# example : TWO : 61,61,64,121 (two is twice in the biblio #61) / TOWER : 61,64,130
# result : 61,61,61,61,64,64 for two AND tower : 61 has more weight than 64
foreach (@leftresult) {
if ($rightresult =~ "$_;") {
$finalresult .= "$_;$_;";
}
}
return $finalresult;
} elsif ($operator eq ' or ') {
# just merge the 2 strings
return $leftresult.$rightresult;
} elsif ($operator eq ' not ') {
my @leftresult = split /;/, $leftresult;
# my @rightresult = split /;/,$leftresult;
my $finalresult;
foreach (@leftresult) {
unless ($rightresult =~ "$_;") {
$finalresult .= "$_;";
}
}
return $finalresult;
} else {
# this error is impossible, because of the regexp that isolate the operand, but just in case...
return $leftresult;
exit;
}
}
}
warn "string :".$string if $DEBUG;
$string =~ /(.*?)( and | or | not | AND | OR | NOT )(.*)/;
my $left = $1;
my $right = $3;
my $operand = lc($2); # FIXME: and/or/not are operators, not operands
# it's not a leaf, we have a and/or/not
if ($operand) {
# reintroduce comma content if needed
$right =~ s/__X__/"$commacontent"/ if $commacontent;
$left =~ s/__X__/"$commacontent"/ if $commacontent;
warn "node : $left / $operand / $right\n" if $DEBUG;
my $leftresult = NZanalyse($left,$server);
my $rightresult = NZanalyse($right,$server);
# OK, we have the results for right and left part of the query
# depending of operand, intersect, union or exclude both lists
# to get a result list
if ($operand eq ' and ') {
my @leftresult = split /;/, $leftresult;
# my @rightresult = split /;/,$leftresult;
my $finalresult;
# parse the left results, and if the biblionumber exist in the right result, save it in finalresult
# the result is stored twice, to have the same weight for AND than OR.
# example : TWO : 61,61,64,121 (two is twice in the biblio #61) / TOWER : 61,64,130
# result : 61,61,61,61,64,64 for two AND tower : 61 has more weight than 64
foreach (@leftresult) {
if ($rightresult =~ "$_;") {
$finalresult .= "$_;$_;";
}
}
return $finalresult;
} elsif ($operand eq ' or ') {
# just merge the 2 strings
return $leftresult.$rightresult;
} elsif ($operand eq ' not ') {
my @leftresult = split /;/, $leftresult;
# my @rightresult = split /;/,$leftresult;
my $finalresult;
foreach (@leftresult) {
unless ($rightresult =~ "$_;") {
$finalresult .= "$_;";
}
}
return $finalresult;
} else {
# this error is impossible, because of the regexp that isolate the operand, but just in case...
die "error : operand unknown : $operand for $string";
}
# it's a leaf, do the real SQL query and return the result
} else {
$string =~ s/__X__/"$commacontent"/ if $commacontent;
$string =~ s/-|\.|\?|,|;|!|'|\(|\)|\[|\]|{|}|"|&|\+|\*|\// /g;
warn "leaf:$string" if $DEBUG;
# parse the string in in operator/operand/value again
$string =~ /(.*)(>=|<=)(.*)/;
my $left = $1;
my $operator = $2;
my $right = $3;
unless ($operator) {
$string =~ /(.*)(>|<|=)(.*)/;
$left = $1;
$operator = $2;
$right = $3;
}
my $results;
# automatic replace for short operators
$left='title' if $left =~ '^ti$';
$left='author' if $left =~ '^au$';
$left='publisher' if $left =~ '^pb$';
$left='subject' if $left =~ '^su$';
$left='koha-Auth-Number' if $left =~ '^an$';
$left='keyword' if $left =~ '^kw$';
if ($operator && $left ne 'keyword' ) {
# do a specific search
my $dbh = C4::Context->dbh;
$operator='LIKE' if $operator eq '=' and $right=~ /%/;
my $sth = $dbh->prepare("SELECT biblionumbers,value FROM nozebra WHERE server=? AND indexname=? AND value $operator ?");
warn "$left / $operator / $right\n";
# split each word, query the DB and build the biblionumbers result
#sanitizing leftpart
$left=~s/^\s+|\s+$//;
my ($biblionumbers,$value);
foreach (split / /,$right) {
next unless $_;
warn "EXECUTE : $server, $left, $_";
$sth->execute($server, $left, $_) or warn "execute failed: $!";
while (my ($line,$value) = $sth->fetchrow) {
# if we are dealing with a numeric value, use only numeric results (in case of >=, <=, > or <)
# otherwise, fill the result
$biblionumbers .= $line unless ($right =~ /\d/ && $value =~ /\D/);
# warn "result : $value ". ($right =~ /\d/) . "==".(!$value =~ /\d/) ;#= $line";
}
# do a AND with existing list if there is one, otherwise, use the biblionumbers list as 1st result list
if ($results) {
my @leftresult = split /;/, $biblionumbers;
my $temp;
foreach my $entry (@leftresult) { # $_ contains biblionumber,title-weight
# remove weight at the end
my $cleaned = $entry;
$cleaned =~ s/-\d*$//;
# if the entry already in the hash, take it & increase weight
warn "===== $cleaned =====" if $DEBUG;
if ($results =~ "$cleaned") {
$temp .= "$entry;$entry;";
warn "INCLUDING $entry" if $DEBUG;
}
}
$results = $temp;
} else {
$results = $biblionumbers;
}
}
} else {
#do a complete search (all indexes)
my $dbh = C4::Context->dbh;
my $sth = $dbh->prepare("SELECT biblionumbers FROM nozebra WHERE server=? AND value LIKE ?");
# split each word, query the DB and build the biblionumbers result
foreach (split / /,$string) {
next if C4::Context->stopwords->{uc($_)}; # skip if stopword
warn "search on all indexes on $_" if $DEBUG;
my $biblionumbers;
next unless $_;
$sth->execute($server, $_);
while (my $line = $sth->fetchrow) {
$biblionumbers .= $line;
}
# do a AND with existing list if there is one, otherwise, use the biblionumbers list as 1st result list
if ($results) {
warn "RES for $_ = $biblionumbers" if $DEBUG;
my @leftresult = split /;/, $biblionumbers;
my $temp;
foreach my $entry (@leftresult) { # $_ contains biblionumber,title-weight
# remove weight at the end
my $cleaned = $entry;
$cleaned =~ s/-\d*$//;
# if the entry already in the hash, take it & increase weight
warn "===== $cleaned =====" if $DEBUG;
if ($results =~ "$cleaned") {
$temp .= "$entry;$entry;";
warn "INCLUDING $entry" if $DEBUG;
}
}
$results = $temp;
} else {
warn "NEW RES for $_ = $biblionumbers" if $DEBUG;
$results = $biblionumbers;
}
}
}
# warn "return : $results for LEAF : $string" if $DEBUG;
return $results;
}
}
=head2 NZorder
$finalresult = NZorder($biblionumbers, $ordering,$results_per_page,$offset);
TODO :: Description
=cut
sub NZorder {
my ($biblionumbers, $ordering,$results_per_page,$offset) = @_;
# order title asc by default
# $ordering = '1=36 dbh;
#
# order by POPULARITY
#
if ($ordering =~ /popularity/) {
my %result;
my %popularity;
# popularity is not in MARC record, it's builded from a specific query
my $sth = $dbh->prepare("select sum(issues) from items where biblionumber=?");
foreach (split /;/,$biblionumbers) {
my ($biblionumber,$title) = split /,/,$_;
$result{$biblionumber}=GetMarcBiblio($biblionumber);
$sth->execute($biblionumber);
my $popularity= $sth->fetchrow ||0;
# hint : the key is popularity.title because we can have
# many results with the same popularity. In this cas, sub-ordering is done by title
# we also have biblionumber to avoid bug for 2 biblios with the same title & popularity
# (un-frequent, I agree, but we won't forget anything that way ;-)
$popularity{sprintf("%10d",$popularity).$title.$biblionumber} = $biblionumber;
}
# sort the hash and return the same structure as GetRecords (Zebra querying)
my $result_hash;
my $numbers=0;
if ($ordering eq 'popularity_dsc') { # sort popularity DESC
foreach my $key (sort {$b cmp $a} (keys %popularity)) {
$result_hash->{'RECORDS'}[$numbers++] = $result{$popularity{$key}}->as_usmarc();
}
} else { # sort popularity ASC
foreach my $key (sort (keys %popularity)) {
$result_hash->{'RECORDS'}[$numbers++] = $result{$popularity{$key}}->as_usmarc();
}
}
my $finalresult=();
$result_hash->{'hits'} = $numbers;
$finalresult->{'biblioserver'} = $result_hash;
return $finalresult;
#
# ORDER BY author
#
} elsif ($ordering =~/author/){
my %result;
foreach (split /;/,$biblionumbers) {
my ($biblionumber,$title) = split /,/,$_;
my $record=GetMarcBiblio($biblionumber);
my $author;
if (C4::Context->preference('marcflavour') eq 'UNIMARC') {
$author=$record->subfield('200','f');
$author=$record->subfield('700','a') unless $author;
} else {
$author=$record->subfield('100','a');
}
# hint : the result is sorted by title.biblionumber because we can have X biblios with the same title
# and we don't want to get only 1 result for each of them !!!
$result{$author.$biblionumber}=$record;
}
# sort the hash and return the same structure as GetRecords (Zebra querying)
my $result_hash;
my $numbers=0;
if ($ordering eq 'author_za') { # sort by author desc
foreach my $key (sort { $b cmp $a } (keys %result)) {
$result_hash->{'RECORDS'}[$numbers++] = $result{$key}->as_usmarc();
}
} else { # sort by author ASC
foreach my $key (sort (keys %result)) {
$result_hash->{'RECORDS'}[$numbers++] = $result{$key}->as_usmarc();
}
}
my $finalresult=();
$result_hash->{'hits'} = $numbers;
$finalresult->{'biblioserver'} = $result_hash;
return $finalresult;
#
# ORDER BY callnumber
#
} elsif ($ordering =~/callnumber/){
my %result;
foreach (split /;/,$biblionumbers) {
my ($biblionumber,$title) = split /,/,$_;
my $record=GetMarcBiblio($biblionumber);
my $callnumber;
my ($callnumber_tag,$callnumber_subfield)=GetMarcFromKohaField($dbh,'items.itemcallnumber');
($callnumber_tag,$callnumber_subfield)= GetMarcFromKohaField('biblioitems.callnumber') unless $callnumber_tag;
if (C4::Context->preference('marcflavour') eq 'UNIMARC') {
$callnumber=$record->subfield('200','f');
} else {
$callnumber=$record->subfield('100','a');
}
# hint : the result is sorted by title.biblionumber because we can have X biblios with the same title
# and we don't want to get only 1 result for each of them !!!
$result{$callnumber.$biblionumber}=$record;
}
# sort the hash and return the same structure as GetRecords (Zebra querying)
my $result_hash;
my $numbers=0;
if ($ordering eq 'call_number_dsc') { # sort by title desc
foreach my $key (sort { $b cmp $a } (keys %result)) {
$result_hash->{'RECORDS'}[$numbers++] = $result{$key}->as_usmarc();
}
} else { # sort by title ASC
foreach my $key (sort { $a cmp $b } (keys %result)) {
$result_hash->{'RECORDS'}[$numbers++] = $result{$key}->as_usmarc();
}
}
my $finalresult=();
$result_hash->{'hits'} = $numbers;
$finalresult->{'biblioserver'} = $result_hash;
return $finalresult;
} elsif ($ordering =~ /pubdate/){ #pub year
my %result;
foreach (split /;/,$biblionumbers) {
my ($biblionumber,$title) = split /,/,$_;
my $record=GetMarcBiblio($biblionumber);
my ($publicationyear_tag,$publicationyear_subfield)=GetMarcFromKohaField('biblioitems.publicationyear','');
my $publicationyear=$record->subfield($publicationyear_tag,$publicationyear_subfield);
# hint : the result is sorted by title.biblionumber because we can have X biblios with the same title
# and we don't want to get only 1 result for each of them !!!
$result{$publicationyear.$biblionumber}=$record;
}
# sort the hash and return the same structure as GetRecords (Zebra querying)
my $result_hash;
my $numbers=0;
if ($ordering eq 'pubdate_dsc') { # sort by pubyear desc
foreach my $key (sort { $b cmp $a } (keys %result)) {
$result_hash->{'RECORDS'}[$numbers++] = $result{$key}->as_usmarc();
}
} else { # sort by pub year ASC
foreach my $key (sort (keys %result)) {
$result_hash->{'RECORDS'}[$numbers++] = $result{$key}->as_usmarc();
}
}
my $finalresult=();
$result_hash->{'hits'} = $numbers;
$finalresult->{'biblioserver'} = $result_hash;
return $finalresult;
#
# ORDER BY title
#
} elsif ($ordering =~ /title/) {
# the title is in the biblionumbers string, so we just need to build a hash, sort it and return
my %result;
foreach (split /;/,$biblionumbers) {
my ($biblionumber,$title) = split /,/,$_;
# hint : the result is sorted by title.biblionumber because we can have X biblios with the same title
# and we don't want to get only 1 result for each of them !!!
# hint & speed improvement : we can order without reading the record
# so order, and read records only for the requested page !
$result{$title.$biblionumber}=$biblionumber;
}
# sort the hash and return the same structure as GetRecords (Zebra querying)
my $result_hash;
my $numbers=0;
if ($ordering eq 'title_az') { # sort by title desc
foreach my $key (sort (keys %result)) {
$result_hash->{'RECORDS'}[$numbers++] = $result{$key};
}
} else { # sort by title ASC
foreach my $key (sort { $b cmp $a } (keys %result)) {
$result_hash->{'RECORDS'}[$numbers++] = $result{$key};
}
}
# limit the $results_per_page to result size if it's more
$results_per_page = $numbers-1 if $numbers < $results_per_page;
# for the requested page, replace biblionumber by the complete record
# speed improvement : avoid reading too much things
for (my $counter=$offset;$counter<=$offset+$results_per_page;$counter++) {
$result_hash->{'RECORDS'}[$counter] = GetMarcBiblio($result_hash->{'RECORDS'}[$counter])->as_usmarc;
}
my $finalresult=();
$result_hash->{'hits'} = $numbers;
$finalresult->{'biblioserver'} = $result_hash;
return $finalresult;
} else {
#
# order by ranking
#
# we need 2 hashes to order by ranking : the 1st one to count the ranking, the 2nd to order by ranking
my %result;
my %count_ranking;
foreach (split /;/,$biblionumbers) {
my ($biblionumber,$title) = split /,/,$_;
$title =~ /(.*)-(\d)/;
# get weight
my $ranking =$2;
# note that we + the ranking because ranking is calculated on weight of EACH term requested.
# if we ask for "two towers", and "two" has weight 2 in biblio N, and "towers" has weight 4 in biblio N
# biblio N has ranking = 6
$count_ranking{$biblionumber} += $ranking;
}
# build the result by "inverting" the count_ranking hash
# hing : as usual, we don't order by ranking only, to avoid having only 1 result for each rank. We build an hash on concat(ranking,biblionumber) instead
# warn "counting";
foreach (keys %count_ranking) {
$result{sprintf("%10d",$count_ranking{$_}).'-'.$_} = $_;
}
# sort the hash and return the same structure as GetRecords (Zebra querying)
my $result_hash;
my $numbers=0;
foreach my $key (sort {$b cmp $a} (keys %result)) {
$result_hash->{'RECORDS'}[$numbers++] = $result{$key};
}
# limit the $results_per_page to result size if it's more
$results_per_page = $numbers-1 if $numbers < $results_per_page;
# for the requested page, replace biblionumber by the complete record
# speed improvement : avoid reading too much things
for (my $counter=$offset;$counter<=$offset+$results_per_page;$counter++) {
$result_hash->{'RECORDS'}[$counter] = GetMarcBiblio($result_hash->{'RECORDS'}[$counter])->as_usmarc if $result_hash->{'RECORDS'}[$counter];
}
my $finalresult=();
$result_hash->{'hits'} = $numbers;
$finalresult->{'biblioserver'} = $result_hash;
return $finalresult;
}
}
=head2 ModBiblios
($countchanged,$listunchanged) = ModBiblios($listbiblios, $tagsubfield,$initvalue,$targetvalue,$test);
this function changes all the values $initvalue in subfield $tag$subfield in any record in $listbiblios
test parameter if set donot perform change to records in database.
=over 2
=item C
* $countchanged counts all the changes performed.
* $listunchanged contains the list of all the biblionumbers of records unchanged.
=item C
=back
my ($countchanged, $listunchanged) = EditBiblios($results->{RECORD}, $tagsubfield,$initvalue,$targetvalue);;
#If one wants to display unchanged records, you should get biblios foreach @$listunchanged
$template->param(countchanged => $countchanged, loopunchanged=>$listunchanged);
=cut
sub ModBiblios{
my ($listbiblios,$tagsubfield,$initvalue,$targetvalue,$test)=@_;
my $countmatched;
my @unmatched;
my ($tag,$subfield)=($1,$2) if ($tagsubfield=~/^(\d{1,3})([a-z0-9A-Z@])?$/);
if ((length($tag)<3)&& $subfield=~/0-9/){
$tag=$tag.$subfield;
undef $subfield;
}
my ($bntag,$bnsubf) = GetMarcFromKohaField('biblio.biblionumber');
my ($itemtag,$itemsubf) = GetMarcFromKohaField('items.itemnumber');
foreach my $usmarc (@$listbiblios){
my $record;
$record=eval{MARC::Record->new_from_usmarc($usmarc)};
my $biblionumber;
if ($@){
# usmarc is not a valid usmarc May be a biblionumber
if ($tag eq $itemtag){
my $bib=GetBiblioFromItemNumber($usmarc);
$record=GetMarcItem($bib->{'biblionumber'},$usmarc) ;
$biblionumber=$bib->{'biblionumber'};
} else {
$record=GetMarcBiblio($usmarc);
$biblionumber=$usmarc;
}
} else {
if ($bntag >= 010){
$biblionumber = $record->subfield($bntag,$bnsubf);
}else {
$biblionumber=$record->field($bntag)->data;
}
}
#GetBiblionumber is to be written.
#Could be replaced by TransformMarcToKoha (But Would be longer)
if ($record->field($tag)){
my $modify=0;
foreach my $field ($record->field($tag)){
if ($subfield){
if ($field->delete_subfield('code' =>$subfield,'match'=>qr($initvalue))){
$countmatched++;
$modify=1;
$field->update($subfield,$targetvalue) if ($targetvalue);
}
} else {
if ($tag >= 010){
if ($field->delete_field($field)){
$countmatched++;
$modify=1;
}
} else {
$field->data=$targetvalue if ($field->data=~qr($initvalue));
}
}
}
# warn $record->as_formatted;
if ($modify){
ModBiblio($record,$biblionumber,GetFrameworkCode($biblionumber)) unless ($test);
} else {
push @unmatched, $biblionumber;
}
} else {
push @unmatched, $biblionumber;
}
}
return ($countmatched,\@unmatched);
}
END { } # module clean-up code here (global destructor)
1;
__END__
=head1 AUTHOR
Koha Developement team
=cut