Koha/C4/AuthoritiesMarc.pm
2006-09-29 16:14:25 +00:00

904 lines
29 KiB
Perl

package C4::AuthoritiesMarc;
# Copyright 2000-2002 Katipo Communications
#
# 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::Koha;
use Encode;
use C4::Biblio;
use vars qw($VERSION @ISA @EXPORT);
# set the version for version checking
$VERSION = 0.01;
@ISA = qw(Exporter);
@EXPORT = qw(
&AUTHgettagslib
&AUTHfindsubfield
&AUTHfind_authtypecode
&AUTHaddauthority
&AUTHmodauthority
&AUTHdelauthority
&AUTHaddsubfield
&AUTHfind_marc_from_kohafield
&AUTHgetauth_type
&AUTHcount_usage
&getsummary
&authoritysearch
&XMLgetauthority
&XMLgetauthorityhash
&XML_readline_withtags
&merge
&FindDuplicateauth
&ZEBRAdelauthority
);
sub AUTHfind_marc_from_kohafield {
my ( $dbh, $kohafield,$authtypecode ) = @_;
return 0, 0 unless $kohafield;
$authtypecode="" unless $authtypecode;
my $marcfromkohafield;
my $sth = $dbh->prepare("select tagfield,tagsubfield from auth_subfield_structure where kohafield= ? and authtypecode=? ");
$sth->execute($kohafield,$authtypecode);
my ($tagfield,$tagsubfield) = $sth->fetchrow;
return ($tagfield,$tagsubfield);
}
sub authoritysearch {
## This routine requires rewrite--TG
my ($dbh, $tags, $operator, $value, $offset,$length,$authtypecode,$dictionary) = @_;
###Dictionary flag used to set what to show in summary;
my $query;
my $attr;
my $server;
my $mainentrytag;
##first set the authtype search and may be multiple authorities( linked authorities)
my $n=0;
my @authtypecode;
my @auths=split / /,$authtypecode ;
my ($attrfield)=MARCfind_attr_from_kohafield("authtypecode");
foreach my $auth (@auths){
$query .=$attrfield." ".$auth." "; ##No truncation on authtype
push @authtypecode ,$auth;
$n++;
}
if ($n>1){
$query= "\@or ".$query;
}
my $dosearch;
my $and;
my $q2;
for(my $i = 0 ; $i <= $#{$value} ; $i++)
{
if (@$value[$i]){
##If mainentry search $a tag
if (@$tags[$i] eq "mainentry") {
($attr)=MARCfind_attr_from_kohafield("mainentry")." ";
}else{
($attr) =MARCfind_attr_from_kohafield("allentry")." ";
}
if (@$operator[$i] eq 'phrase') {
$attr.=" \@attr 4=1 \@attr 5=100 \@attr 6=3 ";##Phrase, No truncation,all of subfield field must match
} else {
$attr .=" \@attr 4=6 \@attr 5=1 ";## Word list, right truncated, anywhere
}
$and .=" \@and " ;
$attr =$attr."\"".@$value[$i]."\"";
$q2 .=$attr;
$dosearch=1;
}#if value
}## value loop
##Add how many queries generated
$query= $and.$query.$q2;
#warn $query;
$offset=0 unless $offset;
my $counter = $offset;
$length=10 unless $length;
my @oAuth;
my $i;
$oAuth[0]=C4::Context->Zconn("authorityserver",1,1);
my ($mainentry)=MARCfind_attr_from_kohafield("mainentry");
my ($allentry)=MARCfind_attr_from_kohafield("allentry");
$query="\@attr 2=102 \@or \@or ".$query." \@attr 7=1 ".$mainentry." 0 \@attr 7=1 ".$allentry." 1"; ## sort on mainfield and subfields
my $oAResult;
$oAResult= $oAuth[0]->search_pqf($query) ;
while (($i = ZOOM::event(\@oAuth)) != 0) {
my $ev = $oAuth[$i-1]->last_event();
# warn("Authority ", $i-1, ": event $ev (", ZOOM::event_str($ev), ")\n");
last if $ev == ZOOM::Event::ZEND;
}
my($error, $errmsg, $addinfo, $diagset) = $oAuth[0]->error_x();
if ($error) {
warn "oAuth error: $errmsg ($error) $addinfo $diagset\n";
goto NOLUCK;
}
my $nbresults;
$nbresults=$oAResult->size();
my $nremains=$nbresults;
my @result = ();
my @finalresult = ();
if ($nbresults>0){
##Find authid and linkid fields
while (($counter < $nbresults) && ($counter < ($offset + $length))) {
##Here we have to extract MARC record and $authid from ZEBRA AUTHORITIES
my $rec=$oAResult->record($counter);
my $marcdata=$rec->raw();
my $authrecord=Encode::decode("utf8",$marcdata);
$authrecord=XML_xml2hash_onerecord($authrecord);
my @linkids;
my $separator=C4::Context->preference('authoritysep');
my $linksummary=" ".$separator;
my $authid=XML_readline_onerecord($authrecord,"authid","authorities");
my @linkid=XML_readline_asarray($authrecord,"linkid","authorities");##May have many linked records
foreach my $linkid (@linkid){
my $linktype=AUTHfind_authtypecode($dbh,$linkid);
my $linkrecord=XMLgetauthorityhash($dbh,$linkid);
$linksummary.="<br>&nbsp;&nbsp;&nbsp;&nbsp;<a href='detail.pl?authid=$linkid'>".getsummary($dbh,$linkrecord,$linkid,$linktype).".</a>".$separator;
}
my $summary;
unless ($dictionary){
$summary=getsummary($dbh,$authrecord,$authid,$authtypecode);
$summary="<a href='detail.pl?authid=$authid'>".$summary.".</a>";
if ( $linksummary ne " ".$separator){
$summary="<b>".$summary."</b>".$linksummary;
}
}else{
$summary=getdictsummary($dbh,$authrecord,$authid,$authtypecode);
}
my $toggle;
if ($counter % 2) {
$toggle="#ffffcc";
} else {
$toggle="white";
}
my %newline;
$newline{'toggle'}=$toggle;
$newline{summary} = $summary;
$newline{authid} = $authid;
$newline{linkid} = $linkid[0];
$newline{even} = $counter % 2;
$counter++;
push @finalresult, \%newline;
}## while counter
for (my $z=0; $z<$length; $z++){
$finalresult[$z]{used}=AUTHcount_usage($finalresult[$z]{authid});
}# all $z's
}## if nbresult
NOLUCK:
$oAResult->destroy();
$oAuth[0]->destroy();
return (\@finalresult, $nbresults);
}
sub AUTHcount_usage {
my ($authid) = @_;
### try ZOOM search here
my @oConnection;
$oConnection[0]=C4::Context->Zconn("biblioserver");
my $query;
my ($attrfield)=MARCfind_attr_from_kohafield("authid");
$query= $attrfield." ".$authid;
my $oResult = $oConnection[0]->search_pqf($query);
my $event;
my $i;
while (($i = ZOOM::event(\@oConnection)) != 0) {
$event = $oConnection[$i-1]->last_event();
last if $event == ZOOM::Event::ZEND;
}# while
my $result=$oResult->size() ;
return ($result);
}
sub AUTHfind_authtypecode {
my ($dbh,$authid) = @_;
my $sth = $dbh->prepare("select authtypecode from auth_header where authid=?");
$sth->execute($authid);
my ($authtypecode) = $sth->fetchrow;
return $authtypecode;
}
sub AUTHgettagslib {
my ($dbh,$forlibrarian,$authtypecode)= @_;
$authtypecode="" unless $authtypecode;
my $sth;
my $libfield = ($forlibrarian eq 1)? 'liblibrarian' : 'libopac';
# check that authority exists
$sth=$dbh->prepare("select count(*) from auth_tag_structure where authtypecode=?");
$sth->execute($authtypecode);
my ($total) = $sth->fetchrow;
$authtypecode="" unless ($total >0);
$sth= $dbh->prepare(
"select tagfield,liblibrarian,libopac,mandatory,repeatable from auth_tag_structure where authtypecode=? order by tagfield"
);
$sth->execute($authtypecode);
my ( $liblibrarian, $libopac, $tag, $res, $tab, $mandatory, $repeatable );
while ( ( $tag, $liblibrarian, $libopac, $mandatory, $repeatable ) = $sth->fetchrow ) {
$res->{$tag}->{lib} = ($forlibrarian or !$libopac)?$liblibrarian:$libopac;
$res->{$tab}->{tab} = ""; # XXX
$res->{$tag}->{mandatory} = $mandatory;
$res->{$tag}->{repeatable} = $repeatable;
}
$sth= $dbh->prepare("select tagfield,tagsubfield,liblibrarian,libopac,tab, mandatory, repeatable,authorised_value,authtypecode,value_builder,seealso,hidden,isurl,link from auth_subfield_structure where authtypecode=? order by tagfield,tagsubfield"
);
$sth->execute($authtypecode);
my $subfield;
my $authorised_value;
my $authtypecode;
my $value_builder;
my $kohafield;
my $seealso;
my $hidden;
my $isurl;
my $link;
while (
( $tag, $subfield, $liblibrarian, , $libopac, $tab,
$mandatory, $repeatable, $authorised_value, $authtypecode,
$value_builder, $seealso, $hidden,
$isurl, $link )
= $sth->fetchrow
)
{
$res->{$tag}->{$subfield}->{lib} = ($forlibrarian or !$libopac)?$liblibrarian:$libopac;
$res->{$tag}->{$subfield}->{tab} = $tab;
$res->{$tag}->{$subfield}->{mandatory} = $mandatory;
$res->{$tag}->{$subfield}->{repeatable} = $repeatable;
$res->{$tag}->{$subfield}->{authorised_value} = $authorised_value;
$res->{$tag}->{$subfield}->{authtypecode} = $authtypecode;
$res->{$tag}->{$subfield}->{value_builder} = $value_builder;
$res->{$tag}->{$subfield}->{seealso} = $seealso;
$res->{$tag}->{$subfield}->{hidden} = $hidden;
$res->{$tag}->{$subfield}->{isurl} = $isurl;
$res->{$tag}->{$subfield}->{link} = $link;
}
return $res;
}
sub AUTHaddauthority {
# pass the XML hash to this function, and it will create the records in the authority table
my ($dbh,$record,$authid,$authtypecode) = @_;
# if authid empty => true add, find a new authid number
if (!$authid) {
my $sth=$dbh->prepare("select max(authid) from auth_header");
$sth->execute;
($authid)=$sth->fetchrow;
$authid=$authid+1;
}
##Modified record may also come here use REPLACE -- bulk import comes here
XML_writeline($record,"authid",$authid,"authorities");
XML_writeline($record,"authtypecode",$authtypecode,"authorities");
my $xml=XML_hash2xml($record);
my $sth=$dbh->prepare("REPLACE auth_header set marcxml=?, authid=?,authtypecode=?,datecreated=now()");
$sth->execute($xml,$authid,$authtypecode);
$sth->finish;
ZEBRAop($dbh,$authid,'specialUpdate',"authorityserver");
## If the record is linked to another update the linked authorities with new authid
my @linkids=XML_readline_asarray($record,"linkid","authorities");
foreach my $linkid (@linkids){
##Modify the record of linked
AUTHaddlink($dbh,$linkid,$authid);
}
return ($authid);
}
sub AUTHaddlink{
my ($dbh,$linkid,$authid)=@_;
my $record=XMLgetauthorityhash($dbh,$linkid);
my $authtypecode=AUTHfind_authtypecode($dbh,$linkid);
#warn "adding l:$linkid,a:$authid,auth:$authtypecode";
XML_writeline($record,"linkid",$authid,"authorities");
my $xml=XML_hash2xml($record);
$dbh->do("lock tables header WRITE");
my $sth=$dbh->prepare("update auth_header set marcxml=? where authid=?");
$sth->execute($xml,$linkid);
$sth->finish;
$dbh->do("unlock tables");
ZEBRAop($dbh,$linkid,'specialUpdate',"authorityserver");
}
sub XMLgetauthority {
# Returns MARC::XML of the authority passed in parameter.
my ( $dbh, $authid ) = @_;
my $sth = $dbh->prepare("select marcxml from auth_header where authid=? " );
$sth->execute($authid);
my ($marcxml)=$sth->fetchrow;
$marcxml=Encode::decode('utf8',$marcxml);
return ($marcxml);
}
sub XMLgetauthorityhash {
## Utility to return hashed MARCXML
my ($dbh,$authid)=@_;
my $xml=XMLgetauthority($dbh,$authid);
my $xmlhash=XML_xml2hash_onerecord($xml);
return $xmlhash;
}
sub AUTHgetauth_type {
my ($authtypecode) = @_;
my $dbh=C4::Context->dbh;
my $sth=$dbh->prepare("select * from auth_types where authtypecode=?");
$sth->execute($authtypecode);
return $sth->fetchrow_hashref;
}
sub AUTHmodauthority {
## $record is expected to be an xmlhash
my ($dbh,$authid,$record,$authtypecode)=@_;
my ($oldrecord)=&XMLgetauthorityhash($dbh,$authid);
### This equality is very dodgy ,It porobaby wont work
if ($oldrecord eq $record) {
return $authid;
}
##
my $sth=$dbh->prepare("update auth_header set marcxml=? where authid=?");
# find if linked records exist and delete the link in them
my @linkids=XML_readline_asarray($oldrecord,"linkid","authorities");
foreach my $linkid (@linkids){
##Modify the record of linked
my $linkrecord=XMLgetauthorityhash($dbh,$linkid);
my $linktypecode=AUTHfind_authtypecode($dbh,$linkid);
my @linkfields=XML_readline_asarray($linkrecord,"linkid","authorities");
my $updated;
foreach my $linkfield (@linkfields){
if ($linkfield eq $authid){
XML_writeline_id($linkrecord,"linkid",$linkfield,"","authorities");
$updated=1;
}
}#foreach linkfield
my $linkedxml=XML_hash2xml($linkrecord);
if ($updated==1){
$sth->execute($linkedxml,$linkid);
ZEBRAop($dbh,$linkid,'specialUpdate',"authorityserver");
}
}#foreach linkid
#Now rewrite the $record to table with an add
$authid=AUTHaddauthority($dbh,$record,$authid,$authtypecode);
### If a library thinks that updating all biblios is a long process and wishes to leave that to a cron job to use merge_authotities.pl
### they should have a system preference "dontmerge=1" otherwise by default biblios will be updated
if (C4::Context->preference('dontmerge') ){
# save the file in localfile/modified_authorities
my $cgidir = C4::Context->intranetdir ."/cgi-bin";
unless (opendir(DIR, "$cgidir")) {
$cgidir = C4::Context->intranetdir."/";
}
my $filename = $cgidir."/localfile/modified_authorities/$authid.authid";
open AUTH, "> $filename";
print AUTH $authid;
close AUTH;
}else{
&merge($dbh,$authid,$record,$authid,$record);
}
return $authid;
}
sub AUTHdelauthority {
my ($dbh,$authid,$keep_biblio) = @_;
# if the keep_biblio is set to 1, then authority entries in biblio are preserved.
# FIXME : delete or not in biblio tables (depending on $keep_biblio flag) is not implemented
ZEBRAop($dbh,$authid,"recordDelete","authorityserver");
}
sub ZEBRAdelauthority {
my ($dbh,$authid)=@_;
$dbh->do("delete from auth_header where authid=$authid") ;
}
sub AUTHfind_authtypecode {
my ($dbh,$authid) = @_;
my $sth = $dbh->prepare("select authtypecode from auth_header where authid=?");
$sth->execute($authid);
my ($authtypecode) = $sth->fetchrow;
return $authtypecode;
}
sub FindDuplicateauth {
### Should receive an xmlhash
my ($record,$authtypecode)=@_;
my $dbh = C4::Context->dbh;
my $sth = $dbh->prepare("select auth_tag_to_report from auth_types where authtypecode=?");
$sth->execute($authtypecode);
my ($auth_tag_to_report) = $sth->fetchrow;
$sth->finish;
# build a request for authoritysearch
my (@tags, @and_or, @excluding, @operator, @value, $offset, $length);
# if ($record->field($auth_tag_to_report)) {
push @tags, $auth_tag_to_report;
push @operator, "all";
@value, XML_readline_asarray($record,"","",$auth_tag_to_report);
# }
my ($finalresult,$nbresult) = authoritysearch($dbh,\@tags,\@and_or,\@excluding,\@operator,\@value,0,10,$authtypecode);
# there is at least 1 result => return the 1st one
if ($nbresult>0) {
return @$finalresult[0]->{authid},@$finalresult[0]->{summary};
}
# no result, returns nothing
return;
}
sub getsummary{
## give this an XMLhash record to return summary
my ($dbh,$record,$authid,$authtypecode)=@_;
my $authref = getauthtype($authtypecode);
my $summary = $authref->{summary};
# if the library has a summary defined, use it. Otherwise, build a standard one
if ($summary) {
my $fields = $record->{'datafield'};
foreach my $field (@$fields) {
my $tag = $field->{'tag'};
if ($tag<10) {
my $tagvalue = XML_readline_onerecord($record,"","",$field->{tag});
$summary =~ s/\[(.?.?.?.?)$tag\*(.*?)]/$1$tagvalue$2\[$1$tag$2]/g;
} else {
my @subf = XML_readline_withtags($record,"","",$tag);
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;
}## each subf
}#tag >10
}##each field
$summary =~ s/\[(.*?)]//g;
$summary =~ s/\n/<br>/g;
} else {
## $summary did not exist create a standard summary
my $heading; # = $authref->{summary};
my $altheading;
my $seeheading;
my $see;
my $fields = $record->{datafield};
if (C4::Context->preference('marcflavour') eq 'UNIMARC') {
# construct UNIMARC summary, that is quite different from MARC21 one
foreach my $field (@$fields) {
# accepted form
if ($field->{tag} = ~/'2..'/) {
foreach my $subfield ("a".."z"){
## Fixme-- if UNICODE uses numeric subfields as well add them
$heading.=XML_readline_onerecord($record,"","",$field->{tag},$subfield);
}
}##tag 2..
# rejected form(s)
if ($field->{tag} = ~/'4..'/) {
my $value;
foreach my $subfield ("a".."z"){
## Fixme-- if UNICODE uses numeric subfields as well add them
$value.=XML_readline_onerecord($record,"","",$field->{tag},$subfield);
}
$summary.= "&nbsp;&nbsp;&nbsp;<i>".$value."</i><br/>";
$summary.= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<i>see:</i> ".$heading."<br/>";
}##tag 4..
# see :
if ($field->{tag} = ~/'5..'/) {
my $value;
foreach my $subfield ("a".."z"){
## Fixme-- if UNICODE uses numeric subfields as well add them
$value.=XML_readline_onerecord($record,"","",$field->{tag},$subfield);
}
$summary.= "&nbsp;&nbsp;&nbsp;<i>".$value."</i><br/>";
$summary.= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<i>see:</i> ".$heading."<br/>";
}# tag 5..
# // form
if ($field->{tag} = ~/'7..'/) {
my $value;
foreach my $subfield ("a".."z"){
## Fixme-- if UNICODE uses numeric subfields as well add them
$value.=XML_readline_onerecord($record,"","",$field->{tag},$subfield);
}
$seeheading.= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<i>see also:</i> ".$value."<br />";
$altheading.= "&nbsp;&nbsp;&nbsp;".$value."<br />";
$altheading.= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<i>see also:</i> ".$heading."<br />";
}# tag 7..
}## Foreach fields
$summary = "<b>".$heading."</b><br />".$seeheading.$altheading.$summary;
} else {
# construct MARC21 summary
foreach my $field (@$fields) {
my $tag="1..";
if($field->{tag} =~ /^$tag/) {
if ($field->{tag} eq '150') {
my $value;
foreach my $subfield ("a".."z"){
$value=XML_readline_onerecord($record,"","","150",$subfield);
$heading.="\$".$subfield.$value if $value;
}
}else{
foreach my $subfield ("a".."z"){
$heading.=XML_readline_onerecord($record,"","",$field->{tag},$subfield);
}
}### tag 150 or else
}##tag 1..
my $tag="4..";
if($field->{tag} =~ /^$tag/) {
foreach my $subfield ("a".."z"){
$seeheading.=XML_readline_onerecord($record,"","",$field->{tag},$subfield);
}
$seeheading.= "&nbsp;&nbsp;&nbsp;".$seeheading."<br />";
$seeheading.= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<i>see:</i> ".$seeheading."<br />";
} #tag 4..
my $tag="5..";
if($field->{tag} =~ /^$tag/) {
my $value;
foreach my $subfield ("a".."z"){
$value.=XML_readline_onerecord($record,"","",$field->{tag},$subfield);
}
$seeheading.= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<i>see also:</i> ".$value."<br />";
$altheading.= "&nbsp;&nbsp;&nbsp;".$value."<br />";
$altheading.= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<i>see also:</i> ".$altheading."<br />";
}#tag 5..
}##for each field
$summary.=$heading.$seeheading.$altheading;
}##USMARC vs UNIMARC
}###Summary exists or not
return $summary;
}
sub getdictsummary{
## give this a XML record to return a brief summary
my ($dbh,$record,$authid,$authtypecode)=@_;
my $authref = getauthtype($authtypecode);
my $summary = $authref->{summary};
my $fields = $record->{'datafield'};
# if the library has a summary defined, use it. Otherwise, build a standard one
if ($summary) {
foreach my $field (@$fields) {
my $tag = $field->{'tag'};
if ($tag<10) {
my $tagvalue = XML_readline_onerecord($record,"","",$field->{tag});
$summary =~ s/\[(.?.?.?.?)$tag\*(.*?)]/$1$tagvalue$2\[$1$tag$2]/g;
} else {
my @subf = XML_readline_withtags($record,"","",$tag);
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;
}## each subf
}#tag >10
}##each field
$summary =~ s/\[(.*?)]//g;
$summary =~ s/\n/<br>/g;
} else {
my $heading; # = $authref->{summary};
my $altheading;
my $seeheading;
my $see;
my @fields = $record->{datafields};
if (C4::Context->preference('marcflavour') eq 'UNIMARC') {
# construct UNIMARC summary, that is quite different from MARC21 one
foreach my $field (@$fields) {
# accepted form
if ($field->{tag} = ~/'2..'/) {
foreach my $subfield ("a".."z"){
## Fixme-- if UNICODE uses numeric subfields as well add them
$heading.=XML_readline_onerecord($record,"","",$field->{tag},$subfield);
}
}##tag 2..
}
$summary = $heading;
} else {
# construct MARC21 summary
foreach my $field (@fields) {
if ($field->{tag}=~/'1..'/){
$heading.= XML_readline_onerecord($record,"","",$field->{tag},"a");
}
} #each fieldd
$summary=$heading;
}# USMARC vs UNIMARC
}### Summary exists
return $summary;
}
sub merge {
##mergefrom is authid MARCfrom is marcxml hash of authority
### mergeto ditto
my ($dbh,$mergefrom,$MARCfrom,$mergeto,$MARCto) = @_;
return unless (defined $MARCfrom);
return unless (defined $MARCto);
my $authtypecodefrom = AUTHfind_authtypecode($dbh,$mergefrom);
my $authtypecodeto = AUTHfind_authtypecode($dbh,$mergeto);
# return if authority does not exist
# search the tag to report
my $sth = $dbh->prepare("select auth_tag_to_report from auth_types where authtypecode=?");
$sth->execute($authtypecodefrom);
my ($auth_tag_to_report) = $sth->fetchrow;
my @record_to;
# search all biblio tags using this authority.
$sth = $dbh->prepare("select distinct tagfield from biblios_subfield_structure where authtypecode=? ");
$sth->execute($authtypecodefrom);
my @tags_using_authtype;
while (my ($tagfield) = $sth->fetchrow) {
push @tags_using_authtype,$tagfield ;
}
## The subfield for linking authorities is stored in koha_attr named auth_biblio_link_subf
## This way we may use whichever subfield we want without harcoding 9 in
my ($dummyfield,$tagsubfield)=MARCfind_marc_from_kohafield("auth_biblio_link_subf","biblios");
# now, find every biblio using this authority
### try ZOOM search here
my @oConnection;
$oConnection[0]=C4::Context->Zconn("biblioserver");
##$oConnection[0]->option(elementSetName=>"biblios"); ## Needs a fix
my $query;
my ($attr2)=MARCfind_attr_from_kohafield("authid");
my $attrfield.=$attr2;
$query= $attrfield." ".$mergefrom;
my ($event,$i);
my $oResult = $oConnection[0]->search_pqf($query);
while (($i = ZOOM::event(\@oConnection)) != 0) {
$event = $oConnection[$i-1]->last_event();
last if $event == ZOOM::Event::ZEND;
}# while event
my $count=$oResult->size();
my @reccache;
my $z=0;
while ( $z<$count ) {
my $rec;
$rec=$oResult->record($z);
my $marcdata = $rec->raw();
my $koharecord=Encode::decode("utf8",$marcdata);
$koharecord=XML_xml2hash($koharecord);
my ( $xmlrecord, @itemsrecord) = XML_separate($koharecord);
push @reccache, $xmlrecord;
$z++;
}
$oResult->destroy();
$oConnection[0]->destroy();
foreach my $xmlhash (@reccache){
my $update;
foreach my $tagfield (@tags_using_authtype){
###Change the authid in biblio
$xmlhash=XML_writeline_id($xmlhash,$mergefrom,$mergeto,$tagfield,$tagsubfield);
### delete all subfields of bibliorecord
$xmlhash=XML_delete_withid($xmlhash,$mergeto,$tagfield,$tagsubfield);
####Read all the data in from authrecord
my @record_to=XML_readline_withtags($MARCto,"","",$auth_tag_to_report);
##Write the data to biblio
foreach my $subfield (@record_to) {
## Replace the data in MARCXML with the new matching authid
XML_writeline_withid($xmlhash,$tagsubfield,$mergeto,$subfield->[1],$tagfield,$subfield->[0]);
$update=1;
}#foreach $subfield
}#foreach tagfield
if ($update==1){
my $biblionumber=XML_readline_onerecord($xmlhash,"biblionumber","biblios");
my $frameworkcode=MARCfind_frameworkcode($dbh,$biblionumber);
ModBiblio($dbh,$biblionumber,$xmlhash,$frameworkcode) ;
}
}#foreach $xmlhash
}#sub
sub XML_writeline_withid{
## Only used in authorities to update biblios with matching authids
my ($xml,$idsubf,$id,$newvalue,$tag,$subf)=@_;
my $biblio=$xml->{'datafield'};
my $updated=0;
if ($tag>9){
foreach my $data (@$biblio){
if ($data->{'tag'} eq $tag){
my @subfields=$data->{'subfield'};
foreach my $subfield ( @subfields){
foreach my $code ( @$subfield){
if ($code->{'code'} eq $idsubf && $code->{'content'} eq $id){
###This is the correct tag -- Now reiterate and update
my @newsubs;
foreach my $code ( @$subfield){
if ($code->{'code'} eq $subf ){
$code->{'content'}=$newvalue;
$updated=1;
}
push @newsubs, $code;
}## each code updated
if (!$updated){
##Create the subfield if it did not exist
push @newsubs,{code=>$subf,content=>$newvalue};
$data->{subfield}= \@newsubs;
$updated=1;
}### created
}### correct tag with id
}#each code
}##each subfield
}# tag match
}## each datafield
}### tag >9
return $xml;
}
sub XML_delete_withid{
## Currently only usedin authorities
### deletes all the subfields of a matching authid
my ($xml,$id,$tag,$idsubf)=@_;
my $biblio=$xml->{'datafield'};
if ($tag>9){
foreach my $data (@$biblio){
if ($data->{'tag'} eq $tag){
my @subfields=$data->{'subfield'};
foreach my $subfield ( @subfields){
foreach my $code ( @$subfield){
if ($code->{'code'} eq $idsubf && $code->{'content'} eq $id){
###This is the correct tag -- Now reiterate and delete all but id subfield
foreach my $code ( @$subfield){
if ($code->{'code'} ne $idsubf ){
$code->{'content'}="";
}
}## each code deleted
}### correct tag with id
}#each code
}## each subfield
}## tag matches
}## each datafield
}# tag >9
return $xml;
}
sub XML_readline_withtags {
my ($xml,$kohafield,$recordtype,$tag,$subf)=@_;
#$xml represents one record of MARCXML as perlhashed
## returns an array of read fields--useful for reading repeated fields
### $recordtype is needed for mapping the correct field if supplied
### If only $tag is give reads the whole tag
###Returns subfieldcodes as well
my @value;
($tag,$subf)=MARCfind_marc_from_kohafield($kohafield,$recordtype) if $kohafield;
if ($tag){
### Only datafields are read
my $biblio=$xml->{'datafield'};
if ($tag>9){
foreach my $data (@$biblio){
if ($data->{'tag'} eq $tag){
foreach my $subfield ( $data->{'subfield'}){
foreach my $code ( @$subfield){
if ($code->{'code'} eq $subf || !$subf){
push @value,[$code->{'code'},$code->{'content'}];
}
}# each code
}# each subfield
}### tag found
}## each tag
}##tag >9
}## if tag
return @value;
}
END { } # module clean-up code here (global destructor)
=back
=head1 AUTHOR
Koha Developement team <info@koha.org>
Paul POULAIN paul.poulain@free.fr
=cut
# $Id$
# Revision 1.30 2006/09/06 16:21:03 tgarip1957
# Clean up before final commits
#
# Revision 1.9.2.6 2005/06/07 10:02:00 tipaul
# porting dictionnary search from head to 2.2. there is now a ... facing titles, author & subject, to search in biblio & authorities existing values.
#
# Revision 1.9.2.5 2005/05/31 14:50:46 tipaul
# fix for authority merging. There was a bug on official installs
#
# Revision 1.9.2.4 2005/05/30 11:24:15 tipaul
# fixing a bug : when a field was repeated, the last field was also repeated. (Was due to the "empty" field in html between fields : to separate fields, in html, an empty field is automatically added. in AUTHhtml2marc, this empty field was not discarded correctly)
#
# Revision 1.9.2.3 2005/04/28 08:45:33 tipaul
# porting FindDuplicate feature for authorities from HEAD to rel_2_2, works correctly now.
#
# Revision 1.9.2.2 2005/02/28 14:03:13 tipaul
# * adding search on "main entry" (ie $a subfield) on a given authority (the "search everywhere" field is still here).
# * adding a select box to requet "contain" or "begin with" search.
# * fixing some bug in authority search (related to "main entry" search)
#
# Revision 1.9.2.1 2005/02/24 13:12:13 tipaul
# saving authority modif in a text file. This will be used soon with another script (in crontab). The script in crontab will retrieve every authorityid in the directory localfile/authorities and modify every biblio using this authority. Those modifs may be long. So they can't be done through http, because we may encounter a webserver timeout, and kill the process before end of the job.
# So, it will be done through a cron job.
# (/me agree we need some doc for command line scripts)
#
# Revision 1.9 2004/12/23 09:48:11 tipaul
# Minor changes in summary "exploding" (the 3 digits AFTER the subfield were not on the right place).
#
# Revision 1.8 2004/11/05 10:11:39 tipaul
# export auth_count_usage (bugfix)
#
# Revision 1.7 2004/09/23 16:13:00 tipaul
# Bugfix in modification
#
# Revision 1.6 2004/08/18 16:00:24 tipaul
# fixes for authorities management
#
# Revision 1.5 2004/07/05 13:37:22 doxulting
# First step for working authorities
#
# Revision 1.4 2004/06/22 11:35:37 tipaul
# removing % at the beginning of a string to avoid loooonnnngggg searchs
#
# Revision 1.3 2004/06/17 08:02:13 tipaul
# merging tag & subfield in auth_word for better perfs
#
# Revision 1.2 2004/06/10 08:29:01 tipaul
# MARC authority management (continued)
#
# Revision 1.1 2004/06/07 07:35:01 tipaul
# MARC authority management package
#