638 lines
22 KiB
Perl
638 lines
22 KiB
Perl
package C4::SearchMarc;
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# Copyright 2000-2002 Katipo Communications
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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 with
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# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
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# Suite 330, Boston, MA 02111-1307 USA
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use strict;
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require Exporter;
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use DBI;
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use C4::Context;
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use C4::Biblio;
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use C4::Date;
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use Date::Manip;
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use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
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# set the version for version checking
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$VERSION = 0.02;
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=head1 NAME
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C4::Search - Functions for searching the Koha MARC catalog
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=head1 FUNCTIONS
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This module provides the searching facilities for the Koha MARC catalog
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=cut
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@ISA = qw(Exporter);
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@EXPORT = qw(&catalogsearch &findseealso &findsuggestion &getMARCnotes &getMARCsubjects);
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=head1 findsuggestion($dbh,$values);
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=head2 $dbh is a link to the DB handler.
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use C4::Context;
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my $dbh =C4::Context->dbh;
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=head2 $values is a word
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Searches words with the same soundex, ordered by frequency of use.
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Useful to suggest other searches to the users.
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=cut
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sub findsuggestion {
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my ($dbh,$values) = @_;
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my $sth = $dbh->prepare("SELECT count( * ) AS total, word FROM marc_word WHERE sndx_word = soundex( ? ) AND word <> ? GROUP BY word ORDER BY total DESC");
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my @results;
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for(my $i = 0 ; $i <= $#{$values} ; $i++) {
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if (length(@$values[$i]) >=5) {
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$sth->execute(@$values[$i],@$values[$i]);
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my $resfound = 1;
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my @resline;
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while ((my ($count,$word) = $sth->fetchrow) and $resfound <=10) {
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push @results, "@$values[$i]|$word|$count";
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# $results{@$values[$i]} = \@resline;
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$resfound++;
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}
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}
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}
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return \@results;
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}
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=head1 findseealso($dbh,$fields);
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=head2 $dbh is a link to the DB handler.
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use C4::Context;
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my $dbh =C4::Context->dbh;
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=head2 $fields is a reference to the fields array
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This function modify the @$fields array and add related fields to search on.
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=cut
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sub findseealso {
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my ($dbh, $fields) = @_;
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my $tagslib = MARCgettagslib ($dbh,1);
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for (my $i=0;$i<=$#{$fields};$i++) {
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my ($tag) =substr(@$fields[$i],1,3);
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my ($subfield) =substr(@$fields[$i],4,1);
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@$fields[$i].=','.$tagslib->{$tag}->{$subfield}->{seealso} if ($tagslib->{$tag}->{$subfield}->{seealso});
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}
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}
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=head1 my ($count, @results) = catalogsearch($dbh, $tags, $and_or, $excluding, $operator, $value, $offset,$length,$orderby,$sqlstring);
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=head2 $dbh is a link to the DB handler.
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use C4::Context;
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my $dbh =C4::Context->dbh;
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$tags,$and_or, $excluding, $operator, $value are references to array
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=head2 $tags
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contains the list of tags+subfields (for example : $@tags[0] = '200a')
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A field can be a list of fields : '200f','700a','700b','701a','701b'
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Example
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=head2 $and_or
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contains a list of strings containing and or or. The 1st value is useless.
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=head2 $excluding
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contains 0 or 1. If 1, then the request is negated.
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=head2 $operator
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contains contains,=,start,>,>=,<,<= the = and start work on the complete subfield. The contains operator works on every word in the subfield.
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examples :
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contains home, search home anywhere.
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= home, search a string being home.
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=head2 $value
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contains the value to search
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If it contains a * or a %, then the search is partial.
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=head2 $offset and $length
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returns $length results, beginning at $offset
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=head2 $orderby
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define the field used to order the request. Any field in the biblio/biblioitem tables can be used. DESC is possible too
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(for example title, title DESC,...)
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=head2 $sqlstring
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optional argument containing an sql string to be used in the 'where' statement. see usage in opac-search.pl.
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=head2 $extratables
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optional argument containing extra tables to search. Used in conjunction with $sqlstring. See usage in opac-search.pl.
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String... so ',items,issues,reserves' allows the items, issues and reserves tables to be used.in a where.
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=head2 RETURNS
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returns an array containing hashes. The hash contains all biblio & biblioitems fields and a reference to an item hash. The "item hash contains one line for each callnumber & the number of items related to the callnumber.
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=cut
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=head2 my $marcnotesarray = &getMARCnotes($dbh,$bibid,$marcflavour);
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Returns a reference to an array containing all the notes stored in the MARC database for the given bibid.
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$marcflavour ("MARC21" or "UNIMARC") determines which tags are used for retrieving subjects.
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=head2 my $marcsubjctsarray = &getMARCsubjects($dbh,$bibid,$marcflavour);
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Returns a reference to an array containing all the subjects stored in the MARC database for the given bibid.
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$marcflavour ("MARC21" or "UNIMARC") determines which tags are used for retrieving subjects.
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=cut
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=head2 my $marcurlsarray = &getMARCurls($dbh,$bibid,$marcflavour);
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Returns a reference to an array containing all the URLS stored in the MARC database for the given bibid.
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$marcflavour ("MARC21" or "UNIMARC") isn't used in this version because both flavours of MARC use the same subfield for URLS (but eventually when we get the lables working we'll need to change this.
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=cut
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sub catalogsearch {
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my ($dbh, $tags, $and_or, $excluding, $operator, $value, $offset,$length,$orderby,$desc_or_asc,$sqlstring, $extratables) = @_;
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# build the sql request. She will look like :
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# select m1.bibid
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# from marc_subfield_table as m1, marc_subfield_table as m2
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# where m1.bibid=m2.bibid and
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# (m1.subfieldvalue like "Des%" and m2.subfieldvalue like "27%")
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# last minute stripping out of stuff
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# doesn't work @$value =~ s/\'/ /;
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# @$value = map { $_ =~ s/\'/ /g } @$value;
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# "Normal" statements
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my @normal_tags = ();
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my @normal_and_or = ();
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my @normal_operator = ();
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my @normal_value = ();
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# Extracts the NOT statements from the list of statements
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my @not_tags = ();
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my @not_and_or = ();
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my @not_operator = ();
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my @not_value = ();
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my $any_not = 0;
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$orderby = "biblio.title" unless $orderby;
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$desc_or_asc = "ASC" unless $desc_or_asc;
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#last minute stripping out of ' and ,
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# paul : quoting, it's done a few lines lated.
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# foreach $_ (@$value) {
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# $_=~ s/\'/ /g;
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# $_=~ s/\,/ /g;
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# }
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# the item.notforloan contains an integer. Every value <>0 means "book unavailable for loan".
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# but each library can have it's own table of meaning for each value. Get them
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# 1st search if there is a list of authorised values connected to items.notforloan
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my $sth = $dbh->prepare('select authorised_value from marc_subfield_structure where kohafield="items.notforloan"');
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$sth->execute;
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my %notforloanstatus;
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my ($authorised_valuecode) = $sth->fetchrow;
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if ($authorised_valuecode) {
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$sth = $dbh->prepare("select authorised_value,lib from authorised_values where category=?");
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$sth->execute($authorised_valuecode);
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while (my ($authorised_value,$lib) = $sth->fetchrow) {
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$notforloanstatus{$authorised_value} = $lib?$lib:$authorised_value;
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}
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}
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for(my $i = 0 ; $i <= $#{$value} ; $i++)
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{
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# replace * by %
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@$value[$i] =~ s/\*/%/g;
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# remove % at the beginning
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@$value[$i] =~ s/^%//g;
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@$value[$i] =~ s/(\.|\?|\:|\!|\'|,|\-|\"|\(|\)|\[|\]|\{|\}|\/)/ /g if @$operator[$i] eq "contains";
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if(@$excluding[$i]) # NOT statements
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{
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$any_not = 1;
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if(@$operator[$i] eq "contains")
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{
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foreach my $word (split(/ /, @$value[$i])) # if operator is contains, splits the words in separate requests
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{
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# remove the "%" for small word (3 letters. (note : the >4 is due to the % at the end)
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# warn "word : $word";
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$word =~ s/%//g unless length($word)>4;
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unless (C4::Context->stopwords->{uc($word)} or length($word)==1) { #it's NOT a stopword => use it. Otherwise, ignore
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push @not_tags, @$tags[$i];
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push @not_and_or, "or"; # as request is negated, finds "foo" or "bar" if final request is NOT "foo" and "bar"
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push @not_operator, @$operator[$i];
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push @not_value, $word;
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}
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}
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}
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else
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{
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push @not_tags, @$tags[$i];
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push @not_and_or, "or"; # as request is negated, finds "foo" or "bar" if final request is NOT "foo" and "bar"
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push @not_operator, @$operator[$i];
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push @not_value, @$value[$i];
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}
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}
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else # NORMAL statements
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{
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if(@$operator[$i] eq "contains") # if operator is contains, splits the words in separate requests
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{
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foreach my $word (split(/ /, @$value[$i]))
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{
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# remove the "%" for small word (3 letters. (note : the >4 is due to the % at the end)
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# warn "word : $word";
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$word =~ s/%//g unless length($word)>4;
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unless (C4::Context->stopwords->{uc($word)} or length($word)==1) { #it's NOT a stopword => use it. Otherwise, ignore
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push @normal_tags, @$tags[$i];
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push @normal_and_or, "and"; # assumes "foo" and "bar" if "foo bar" is entered
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push @normal_operator, @$operator[$i];
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push @normal_value, $word;
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}
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}
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}
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else
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{
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push @normal_tags, @$tags[$i];
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push @normal_and_or, @$and_or[$i];
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push @normal_operator, @$operator[$i];
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push @normal_value, @$value[$i];
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}
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}
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}
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# Finds the basic results without the NOT requests
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my ($sql_tables, $sql_where1, $sql_where2) = create_request($dbh,\@normal_tags, \@normal_and_or, \@normal_operator, \@normal_value);
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$sql_where1 .= $sqlstring;
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$sql_tables .= $extratables;
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$sql_where1 .= "and TO_DAYS( NOW( ) ) - TO_DAYS( biblio.timestamp ) <30" if $orderby =~ "biblio.timestamp";
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my $sth;
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if ($sql_where2) {
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$sth = $dbh->prepare("select distinct m1.bibid from biblio,biblioitems,marc_biblio,$sql_tables where biblio.biblionumber=marc_biblio.biblionumber and biblio.biblionumber=biblioitems.biblionumber and m1.bibid=marc_biblio.bibid and $sql_where2 and ($sql_where1) order by $orderby $desc_or_asc");
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warn "Q2 : select distinct m1.bibid from biblio,biblioitems,marc_biblio,$sql_tables where biblio.biblionumber=marc_biblio.biblionumber and biblio.biblionumber=biblioitems.biblionumber and m1.bibid=marc_biblio.bibid and $sql_where2 and ($sql_where1) order by $orderby $desc_or_asc term is @$value";
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} else {
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$sth = $dbh->prepare("select distinct m1.bibid from biblio,biblioitems,marc_biblio,$sql_tables where biblio.biblionumber=marc_biblio.biblionumber and biblio.biblionumber=biblioitems.biblionumber and m1.bibid=marc_biblio.bibid and $sql_where1 order by $orderby $desc_or_asc");
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warn "Q : select distinct m1.bibid from biblio,biblioitems,marc_biblio,$sql_tables where biblio.biblionumber=marc_biblio.biblionumber and biblio.biblionumber=biblioitems.biblionumber and m1.bibid=marc_biblio.bibid and $sql_where1 order by $orderby $desc_or_asc";
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}
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$sth->execute();
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my @result = ();
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my $subtitle; # Added by JF for Subtitles
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# Processes the NOT if any and there are results
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my ($not_sql_tables, $not_sql_where1, $not_sql_where2);
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if( ($sth->rows) && $any_not ) # some results to tune up and some NOT statements
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{
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($not_sql_tables, $not_sql_where1, $not_sql_where2) = create_request($dbh,\@not_tags, \@not_and_or, \@not_operator, \@not_value);
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my @tmpresult;
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while (my ($bibid) = $sth->fetchrow) {
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push @tmpresult,$bibid;
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}
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my $sth_not;
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warn "NOT : select distinct m1.bibid from $not_sql_tables where $not_sql_where2 and ($not_sql_where1)";
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if ($not_sql_where2) {
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$sth_not = $dbh->prepare("select distinct m1.bibid from $not_sql_tables where $not_sql_where2 and ($not_sql_where1)");
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} else {
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$sth_not = $dbh->prepare("select distinct m1.bibid from $not_sql_tables where $not_sql_where1");
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}
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$sth_not->execute();
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if($sth_not->rows)
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{
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my %not_bibids = ();
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while(my $bibid = $sth_not->fetchrow()) {
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$not_bibids{$bibid} = 1; # populates the hashtable with the bibids matching the NOT statement
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}
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foreach my $bibid (@tmpresult)
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{
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if(!$not_bibids{$bibid})
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{
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push @result, $bibid;
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}
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}
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}
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$sth_not->finish();
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}
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else # no NOT statements
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{
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while (my ($bibid) = $sth->fetchrow) {
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push @result,$bibid;
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}
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}
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# we have bibid list. Now, loads title and author from [offset] to [offset]+[length]
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my $counter = $offset;
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# HINT : biblionumber as bn is important. The hash is fills biblionumber with items.biblionumber.
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# so if you dont' has an item, you get a not nice empty value.
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$sth = $dbh->prepare("SELECT biblio.biblionumber as bn,biblioitems.*,biblio.*, marc_biblio.bibid,itemtypes.notforloan,itemtypes.description
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FROM biblio, marc_biblio
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LEFT JOIN biblioitems on biblio.biblionumber = biblioitems.biblionumber
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LEFT JOIN itemtypes on itemtypes.itemtype=biblioitems.itemtype
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WHERE biblio.biblionumber = marc_biblio.biblionumber AND bibid = ?");
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my $sth_subtitle = $dbh->prepare("SELECT subtitle FROM bibliosubtitle WHERE biblionumber=?"); # Added BY JF for Subtitles
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my @finalresult = ();
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my @CNresults=();
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my $totalitems=0;
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my $oldline;
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my ($oldbibid, $oldauthor, $oldtitle);
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my $sth_itemCN;
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if (C4::Context->preference('hidelostitem')) {
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$sth_itemCN = $dbh->prepare("select items.* from items where biblionumber=? and (itemlost = 0 or itemlost is NULL)");
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} else {
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$sth_itemCN = $dbh->prepare("select items.* from items where biblionumber=?");
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}
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my $sth_issue = $dbh->prepare("select date_due,returndate from issues where itemnumber=?");
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# parse all biblios between start & end.
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while (($counter <= $#result) && ($counter <= ($offset + $length))) {
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# search & parse all items & note itemcallnumber
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$sth->execute($result[$counter]);
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my $continue=1;
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my $line = $sth->fetchrow_hashref;
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my $biblionumber=$line->{bn};
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# Return subtitles first ADDED BY JF
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$sth_subtitle->execute($biblionumber);
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my $subtitle_here.= $sth_subtitle->fetchrow." ";
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chop $subtitle_here;
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$subtitle = $subtitle_here;
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# warn "Here's the Biblionumber ".$biblionumber;
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# warn "and here's the subtitle: ".$subtitle_here;
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# /ADDED BY JF
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# $continue=0 unless $line->{bn};
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# my $lastitemnumber;
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$sth_itemCN->execute($biblionumber);
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my @CNresults = ();
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my $notforloan=1; # to see if there is at least 1 item that can be issued
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while (my $item = $sth_itemCN->fetchrow_hashref) {
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# parse the result, putting holdingbranch & itemcallnumber in separate array
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# then all other fields in the main array
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# search if item is on loan
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my $date_due;
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$sth_issue->execute($item->{itemnumber});
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while (my $loan = $sth_issue->fetchrow_hashref) {
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if ($loan->{date_due} and !$loan->{returndate}) {
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$date_due = $loan->{date_due};
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}
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}
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# store this item
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my %lineCN;
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$lineCN{holdingbranch} = $item->{holdingbranch};
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$lineCN{itemcallnumber} = $item->{itemcallnumber};
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$lineCN{location} = $item->{location};
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$lineCN{date_due} = format_date($date_due);
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$lineCN{notforloan} = $notforloanstatus{$line->{notforloan}} if ($line->{notforloan}); # setting not forloan if itemtype is not for loan
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$lineCN{notforloan} = $notforloanstatus{$item->{notforloan}} if ($item->{notforloan}); # setting not forloan it this item is not for loan
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$notforloan=0 unless ($item->{notforloan} or $item->{wthdrawn} or $item->{itemlost});
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push @CNresults,\%lineCN;
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$totalitems++;
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}
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# save the biblio in the final array, with item and item issue status
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my %newline;
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%newline = %$line;
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$newline{totitem} = $totalitems;
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# if $totalitems == 0, check if it's being ordered.
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if ($totalitems == 0) {
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my $sth = $dbh->prepare("select count(*) from aqorders where biblionumber=? and datecancellationprinted is NULL");
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$sth->execute($biblionumber);
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my ($ordered) = $sth->fetchrow;
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$newline{onorder} = 1 if $ordered;
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}
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$newline{biblionumber} = $biblionumber;
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|
$newline{norequests} = 0;
|
|
$newline{norequests} = 1 if ($line->{notforloan}); # itemtype not issuable
|
|
$newline{norequests} = 1 if (!$line->{notforloan} && $notforloan); # itemtype issuable but all items not issuable for instance
|
|
$newline{subtitle} = $subtitle; # put the subtitle in ADDED BY JF
|
|
|
|
my @CNresults2= @CNresults;
|
|
$newline{CN} = \@CNresults2;
|
|
$newline{'even'} = 1 if $#finalresult % 2 == 0;
|
|
$newline{'odd'} = 1 if $#finalresult % 2 == 1;
|
|
$newline{'timestamp'} = format_date($newline{timestamp});
|
|
@CNresults = ();
|
|
push @finalresult, \%newline;
|
|
$totalitems=0;
|
|
$counter++;
|
|
}
|
|
my $nbresults = $#result+1;
|
|
return (\@finalresult, $nbresults);
|
|
}
|
|
|
|
# Creates the SQL Request
|
|
|
|
sub create_request {
|
|
my ($dbh,$tags, $and_or, $operator, $value) = @_;
|
|
|
|
my $sql_tables; # will contain marc_subfield_table as m1,...
|
|
my $sql_where1; # will contain the "true" where
|
|
my $sql_where2 = "("; # will contain m1.bibid=m2.bibid
|
|
my $nb_active=0; # will contain the number of "active" entries. an entry is active if a value is provided.
|
|
my $nb_table=1; # will contain the number of table. ++ on each entry EXCEPT when an OR is provided.
|
|
|
|
my $maxloop=8; # the maximum number of words to avoid a too complex search.
|
|
$maxloop = @$value if @$value<$maxloop;
|
|
|
|
for(my $i=0; $i<=$maxloop;$i++) {
|
|
if (@$value[$i]) {
|
|
$nb_active++;
|
|
if ($nb_active==1) {
|
|
if (@$operator[$i] eq "start") {
|
|
$sql_tables .= "marc_subfield_table as m$nb_table,";
|
|
$sql_where1 .= "(m1.subfieldvalue like ".$dbh->quote("@$value[$i]%");
|
|
if (@$tags[$i]) {
|
|
$sql_where1 .=" and concat(m1.tag,m1.subfieldcode) in (@$tags[$i])";
|
|
}
|
|
$sql_where1.=")";
|
|
} elsif (@$operator[$i] eq "contains") {
|
|
$sql_tables .= "marc_word as m$nb_table,";
|
|
$sql_where1 .= "(m1.word like ".$dbh->quote("@$value[$i]");
|
|
if (@$tags[$i]) {
|
|
$sql_where1 .=" and m1.tagsubfield in (@$tags[$i])";
|
|
}
|
|
$sql_where1.=")";
|
|
} else {
|
|
$sql_tables .= "marc_subfield_table as m$nb_table,";
|
|
$sql_where1 .= "(m1.subfieldvalue @$operator[$i] ".$dbh->quote("@$value[$i]");
|
|
if (@$tags[$i]) {
|
|
$sql_where1 .=" and concat(m1.tag,m1.subfieldcode) in (@$tags[$i])";
|
|
}
|
|
$sql_where1.=")";
|
|
}
|
|
} else {
|
|
if (@$operator[$i] eq "start") {
|
|
$nb_table++;
|
|
$sql_tables .= "marc_subfield_table as m$nb_table,";
|
|
$sql_where1 .= "@$and_or[$i] (m$nb_table.subfieldvalue like ".$dbh->quote("@$value[$i]%");
|
|
if (@$tags[$i]) {
|
|
$sql_where1 .=" and concat(m$nb_table.tag,m$nb_table.subfieldcode) in (@$tags[$i])";
|
|
}
|
|
$sql_where1.=")";
|
|
$sql_where2 .= "m1.bibid=m$nb_table.bibid and ";
|
|
} elsif (@$operator[$i] eq "contains") {
|
|
if (@$and_or[$i] eq 'and') {
|
|
$nb_table++;
|
|
$sql_tables .= "marc_word as m$nb_table,";
|
|
$sql_where1 .= "@$and_or[$i] (m$nb_table.word like ".$dbh->quote("@$value[$i]");
|
|
if (@$tags[$i]) {
|
|
$sql_where1 .=" and m$nb_table.tagsubfield in(@$tags[$i])";
|
|
}
|
|
$sql_where1.=")";
|
|
$sql_where2 .= "m1.bibid=m$nb_table.bibid and ";
|
|
} else {
|
|
$sql_where1 .= "@$and_or[$i] (m$nb_table.word like ".$dbh->quote("@$value[$i]");
|
|
if (@$tags[$i]) {
|
|
$sql_where1 .=" and m$nb_table.tagsubfield in (@$tags[$i])";
|
|
}
|
|
$sql_where1.=")";
|
|
$sql_where2 .= "m1.bibid=m$nb_table.bibid and ";
|
|
}
|
|
} else {
|
|
$nb_table++;
|
|
$sql_tables .= "marc_subfield_table as m$nb_table,";
|
|
$sql_where1 .= "@$and_or[$i] (m$nb_table.subfieldvalue @$operator[$i] ".$dbh->quote(@$value[$i]);
|
|
if (@$tags[$i]) {
|
|
$sql_where1 .=" and concat(m$nb_table.tag,m$nb_table.subfieldcode) in (@$tags[$i])";
|
|
}
|
|
$sql_where2 .= "m1.bibid=m$nb_table.bibid and ";
|
|
$sql_where1.=")";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if($sql_where2 ne "(") # some datas added to sql_where2, processing
|
|
{
|
|
$sql_where2 = substr($sql_where2, 0, (length($sql_where2)-5)); # deletes the trailing ' and '
|
|
$sql_where2 .= ")";
|
|
}
|
|
else # no sql_where2 statement, deleting '('
|
|
{
|
|
$sql_where2 = "";
|
|
}
|
|
chop $sql_tables; # deletes the trailing ','
|
|
return ($sql_tables, $sql_where1, $sql_where2);
|
|
}
|
|
|
|
sub getMARCnotes {
|
|
my ($dbh, $bibid, $marcflavour) = @_;
|
|
my ($mintag, $maxtag);
|
|
if ($marcflavour eq "MARC21") {
|
|
$mintag = "500";
|
|
$maxtag = "599";
|
|
} else { # assume unimarc if not marc21
|
|
$mintag = "300";
|
|
$maxtag = "399";
|
|
}
|
|
|
|
my $sth=$dbh->prepare("SELECT subfieldvalue,tag FROM marc_subfield_table WHERE bibid=? AND tag BETWEEN ? AND ? ORDER BY tagorder");
|
|
|
|
$sth->execute($bibid,$mintag,$maxtag);
|
|
|
|
my @marcnotes;
|
|
my $note = "";
|
|
my $tag = "";
|
|
my $marcnote;
|
|
|
|
while (my $data=$sth->fetchrow_arrayref) {
|
|
my $value=$data->[0];
|
|
my $thistag=$data->[1];
|
|
if ($value=~/\.$/) {
|
|
$value=$value . " ";
|
|
}
|
|
if ($thistag ne $tag && $note ne "") {
|
|
$marcnote = {marcnote => $note,};
|
|
push @marcnotes, $marcnote;
|
|
$note=$value;
|
|
$tag=$thistag;
|
|
}
|
|
if ($note ne $value) {
|
|
$note = $note." ".$value;
|
|
}
|
|
}
|
|
|
|
if ($note) {
|
|
$marcnote = {marcnote => $note};
|
|
push @marcnotes, $marcnote; #load last tag into array
|
|
}
|
|
|
|
$sth->finish;
|
|
|
|
my $marcnotesarray=\@marcnotes;
|
|
return $marcnotesarray;
|
|
} # end getMARCnotes
|
|
|
|
|
|
sub getMARCsubjects {
|
|
my ($dbh, $bibid, $marcflavour) = @_;
|
|
my ($mintag, $maxtag);
|
|
if ($marcflavour eq "MARC21") {
|
|
$mintag = "600";
|
|
$maxtag = "699";
|
|
} else { # assume unimarc if not marc21
|
|
$mintag = "600";
|
|
$maxtag = "619";
|
|
}
|
|
my $sth=$dbh->prepare("SELECT subfieldvalue,subfieldcode FROM marc_subfield_table WHERE bibid=? AND tag BETWEEN ? AND ? ORDER BY tagorder");
|
|
|
|
$sth->execute($bibid,$mintag,$maxtag);
|
|
|
|
my @marcsubjcts;
|
|
my $subjct = "";
|
|
my $subfield = "";
|
|
my $marcsubjct;
|
|
|
|
while (my $data=$sth->fetchrow_arrayref) {
|
|
my $value = $data->[0];
|
|
my $subfield = $data->[1];
|
|
if ($subfield eq "a" && $value ne $subjct) {
|
|
$marcsubjct = {MARCSUBJCT => $value,};
|
|
push @marcsubjcts, $marcsubjct;
|
|
$subjct = $value;
|
|
}
|
|
}
|
|
|
|
$sth->finish;
|
|
|
|
my $marcsubjctsarray=\@marcsubjcts;
|
|
return $marcsubjctsarray;
|
|
} #end getMARCsubjects
|
|
|
|
END { } # module clean-up code here (global destructor)
|
|
|
|
1;
|
|
__END__
|
|
|
|
=back
|
|
|
|
=head1 AUTHOR
|
|
|
|
Koha Developement team <info@koha.org>
|
|
|
|
=cut
|