C4/AuthoritiesMarc.pm

   1 package C4::AuthoritiesMarc;
   2 # Copyright 2000-2002 Katipo Communications
   3 #
   4 # This file is part of Koha.
   5 #
   6 # Koha is free software; you can redistribute it and/or modify it under the
   7 # terms of the GNU General Public License as published by the Free Software
   8 # Foundation; either version 2 of the License, or (at your option) any later
   9 # version.
  10 #
  11 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
  12 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  13 # A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License along with
  16 # Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
  17 # Suite 330, Boston, MA  02111-1307 USA
  18
  19 use strict;
  20 require Exporter;
  21 use C4::Context;
  22 use C4::Koha;
  23 use Encode;
  24 use C4::Biblio;
  25
  26 use vars qw($VERSION @ISA @EXPORT);
  27
  28 # set the version for version checking
  29 $VERSION = 0.01;
  30
  31 @ISA = qw(Exporter);
  32 @EXPORT = qw(
  33         &AUTHgettagslib
  34         &AUTHfindsubfield
  35         &AUTHfind_authtypecode
  36         &AUTHaddauthority
  37         &AUTHmodauthority
  38         &AUTHdelauthority
  39         &AUTHaddsubfield
  40
  41         &AUTHfind_marc_from_kohafield
  42         &AUTHgetauth_type
  43         &AUTHcount_usage
  44         &getsummary
  45         &authoritysearch
  46         &XMLgetauthority
  47         &XMLgetauthorityhash
  48         &XML_readline_withtags
  49         &merge
  50         &FindDuplicateauth
  51         &ZEBRAdelauthority
  52  );
  53
  54 sub AUTHfind_marc_from_kohafield {
  55     my ( $dbh, $kohafield,$authtypecode ) = @_;
  56     return 0, 0 unless $kohafield;
  57 $authtypecode="" unless $authtypecode;
  58 my $marcfromkohafield;
  59         my $sth = $dbh->prepare("select tagfield,tagsubfield from auth_subfield_structure where kohafield= ? and authtypecode=? ");
  60         $sth->execute($kohafield,$authtypecode);
  61         my ($tagfield,$tagsubfield) = $sth->fetchrow;
  62         return  ($tagfield,$tagsubfield);
  63 }
  64 sub authoritysearch {
  65 ## This routine requires rewrite--TG
  66         my ($dbh, $tags, $operator, $value, $offset,$length,$authtypecode,$dictionary) = @_;
  67 ###Dictionary flag used to set what to show in summary;
  68         my $query;
  69         my $attr;
  70         my $server;
  71         my $mainentrytag;
  72         ##first set the authtype search and may be multiple authorities( linked authorities)
  73         my $n=0;
  74         my @authtypecode;
  75                                 my @auths=split / /,$authtypecode ;
  76                                 my ($attrfield)=MARCfind_attr_from_kohafield("authtypecode");
  77                                 foreach my  $auth (@auths){
  78                                 $query .=$attrfield." ".$auth." "; ##No truncation on authtype
  79                                 push @authtypecode ,$auth;
  80                                 $n++;
  81                                 }
  82                         if ($n>1){
  83                          $query= "\@or ".$query;
  84                         }
  85
  86         my $dosearch;
  87         my $and;
  88         my $q2;
  89         for(my $i = 0 ; $i <= $#{$value} ; $i++)
  90         {
  91
  92         if (@$value[$i]){
  93         ##If mainentry search $a tag
  94                 if (@$tags[$i] eq "mainentry") {
  95                  ($attr)=MARCfind_attr_from_kohafield("mainentry")." ";
  96                 }else{
  97                 ($attr) =MARCfind_attr_from_kohafield("allentry")." ";
  98                 }
  99                 if (@$operator[$i] eq 'phrase') {
 100                          $attr.="  \@attr 4=1  \@attr 5=100  \@attr 6=3 ";##Phrase, No truncation,all of subfield field must match
 101
 102                 } else {
 103
 104                          $attr .=" \@attr 4=6  \@attr 5=1  ";## Word list, right truncated, anywhere
 105                 }
 106
 107
 108                 $and .=" \@and " ;
 109                 $attr =$attr."\"".@$value[$i]."\"";
 110                 $q2 .=$attr;
 111         $dosearch=1;
 112         }#if value
 113
 114         }## value loop
 115 ##Add how many queries generated
 116 $query= $and.$query.$q2;
 117 #warn $query;
 118
 119 $offset=0 unless $offset;
 120 my $counter = $offset;
 121 $length=10 unless $length;
 122 my @oAuth;
 123 my $i;
 124  $oAuth[0]=C4::Context->Zconnauth("authorityserver");
 125 my ($mainentry)=MARCfind_attr_from_kohafield("mainentry");
 126 my ($allentry)=MARCfind_attr_from_kohafield("allentry");
 127
 128 $query="\@attr 2=102 \@or \@or ".$query." \@attr 7=1 ".$mainentry." 0 \@attr 7=1 ".$allentry." 1"; ## sort on mainfield and subfields
 129
 130
 131 my $oAResult;
 132  $oAResult= $oAuth[0]->search_pqf($query) ;
 133 while (($i = ZOOM::event(\@oAuth)) != 0) {
 134     my $ev = $oAuth[$i-1]->last_event();
 135 #   warn("Authority ", $i-1, ": event $ev (", ZOOM::event_str($ev), ")\n");
 136     last if $ev == ZOOM::Event::ZEND;
 137 }
 138  my($error, $errmsg, $addinfo, $diagset) = $oAuth[0]->error_x();
 139     if ($error) {
 140         warn  "oAuth error: $errmsg ($error) $addinfo $diagset\n";
 141         goto NOLUCK;
 142     }
 143
 144
 145 my $nbresults;
 146  $nbresults=$oAResult->size();
 147 my $nremains=$nbresults;
 148         my @result = ();
 149         my @finalresult = ();
 150
 151 if ($nbresults>0){
 152
 153 ##Find authid and linkid fields
 154
 155
 156 while (($counter < $nbresults) && ($counter < ($offset + $length))) {
 157 ##Here we have to extract MARC record and $authid from ZEBRA AUTHORITIES
 158 my $rec=$oAResult->record($counter);
 159 my $marcdata=$rec->raw();
 160 my $authrecord=Encode::decode("utf8",$marcdata);
 161 $authrecord=XML_xml2hash_onerecord($authrecord);
 162 my @linkids;
 163 my $separator=C4::Context->preference('authoritysep');
 164 my $linksummary=" ".$separator;
 165 my $authid=XML_readline_onerecord($authrecord,"authid","authorities");
 166 my @linkid=XML_readline_asarray($authrecord,"linkid","authorities");##May have many linked records
 167
 168         foreach my $linkid (@linkid){
 169                 my $linktype=AUTHfind_authtypecode($dbh,$linkid);
 170                 my $linkrecord=XMLgetauthorityhash($dbh,$linkid);
 171                 $linksummary.="<br>&nbsp;&nbsp;&nbsp;&nbsp;<a href='detail.pl?authid=$linkid'>".getsummary($dbh,$linkrecord,$linkid,$linktype).".</a>".$separator;
 172
 173         }
 174 my  $summary;
 175 unless ($dictionary){
 176  $summary=getsummary($dbh,$authrecord,$authid,$authtypecode);
 177 $summary="<a href='detail.pl?authid=$authid'>".$summary.".</a>";
 178         if ( $linksummary ne " ".$separator){
 179         $summary="<b>".$summary."</b>".$linksummary;
 180         }
 181 }else{
 182  $summary=getdictsummary($dbh,$authrecord,$authid,$authtypecode);
 183 }
 184 my $toggle;
 185         if ($counter % 2) {
 186                 $toggle="#ffffcc";
 187         } else {
 188                 $toggle="white";
 189         }
 190 my %newline;
 191         $newline{'toggle'}=$toggle;
 192         $newline{summary} = $summary;
 193         $newline{authid} = $authid;
 194         $newline{linkid} = $linkid[0];
 195         $newline{even} = $counter % 2;
 196         $counter++;
 197         push @finalresult, \%newline;
 198         }## while counter
 199
 200
 201 for (my $z=0; $z<$length; $z++){
 202                 $finalresult[$z]{used}=AUTHcount_usage($finalresult[$z]{authid});
 203
 204  }# all $z's
 205
 206
 207 }## if nbresult
 208 NOLUCK:
 209 $oAResult->destroy();
 210 $oAuth[0]->destroy();
 211
 212         return (\@finalresult, $nbresults);
 213 }
 214
 215
 216
 217 sub AUTHcount_usage {
 218         my ($authid) = @_;
 219 ### try ZOOM search here
 220 my @oConnection;
 221 $oConnection[0]=C4::Context->Zconn("biblioserver");
 222 my $query;
 223 my ($attrfield)=MARCfind_attr_from_kohafield("authid");
 224 $query= $attrfield." ".$authid;
 225
 226 my $oResult = $oConnection[0]->search_pqf($query);
 227 my $event;
 228 my $i;
 229    while (($i = ZOOM::event(\@oConnection)) != 0) {
 230         $event = $oConnection[$i-1]->last_event();
 231         last if $event == ZOOM::Event::ZEND;
 232    }# while
 233 my $result=$oResult->size() ;
 234         return ($result);
 235 }
 236
 237
 238
 239 sub AUTHfind_authtypecode {
 240         my ($dbh,$authid) = @_;
 241         my $sth = $dbh->prepare("select authtypecode from auth_header where authid=?");
 242         $sth->execute($authid);
 243         my ($authtypecode) = $sth->fetchrow;
 244         return $authtypecode;
 245 }
 246
 247
 248 sub AUTHgettagslib {
 249         my ($dbh,$forlibrarian,$authtypecode)= @_;
 250         $authtypecode="" unless $authtypecode;
 251         my $sth;
 252         my $libfield = ($forlibrarian eq 1)? 'liblibrarian' : 'libopac';
 253
 254
 255         # check that authority exists
 256         $sth=$dbh->prepare("select count(*) from auth_tag_structure where authtypecode=?");
 257         $sth->execute($authtypecode);
 258         my ($total) = $sth->fetchrow;
 259         $authtypecode="" unless ($total >0);
 260         $sth= $dbh->prepare(
 261 "select tagfield,liblibrarian,libopac,mandatory,repeatable from auth_tag_structure where authtypecode=? order by tagfield"
 262     );
 263
 264 $sth->execute($authtypecode);
 265          my ( $liblibrarian, $libopac, $tag, $res, $tab, $mandatory, $repeatable );
 266
 267     while ( ( $tag, $liblibrarian, $libopac, $mandatory, $repeatable ) = $sth->fetchrow ) {
 268         $res->{$tag}->{lib}        = ($forlibrarian or !$libopac)?$liblibrarian:$libopac;
 269         $res->{$tab}->{tab}        = "";            # XXX
 270         $res->{$tag}->{mandatory}  = $mandatory;
 271         $res->{$tag}->{repeatable} = $repeatable;
 272     }
 273         $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"
 274     );
 275         $sth->execute($authtypecode);
 276
 277          my $subfield;
 278     my $authorised_value;
 279     my $authtypecode;
 280     my $value_builder;
 281     my $kohafield;
 282     my $seealso;
 283     my $hidden;
 284     my $isurl;
 285         my $link;
 286
 287     while (
 288         ( $tag,         $subfield,   $liblibrarian,   , $libopac,      $tab,
 289         $mandatory,     $repeatable, $authorised_value, $authtypecode,
 290         $value_builder,   $seealso,          $hidden,
 291         $isurl,                 $link )
 292         = $sth->fetchrow
 293       )
 294     {
 295         $res->{$tag}->{$subfield}->{lib}              = ($forlibrarian or !$libopac)?$liblibrarian:$libopac;
 296         $res->{$tag}->{$subfield}->{tab}              = $tab;
 297         $res->{$tag}->{$subfield}->{mandatory}        = $mandatory;
 298         $res->{$tag}->{$subfield}->{repeatable}       = $repeatable;
 299         $res->{$tag}->{$subfield}->{authorised_value} = $authorised_value;
 300         $res->{$tag}->{$subfield}->{authtypecode}     = $authtypecode;
 301         $res->{$tag}->{$subfield}->{value_builder}    = $value_builder;
 302         $res->{$tag}->{$subfield}->{seealso}          = $seealso;
 303         $res->{$tag}->{$subfield}->{hidden}           = $hidden;
 304         $res->{$tag}->{$subfield}->{isurl}            = $isurl;
 305         $res->{$tag}->{$subfield}->{link}            = $link;
 306     }
 307     return $res;
 308 }
 309
 310 sub AUTHaddauthority {
 311 # pass the XML hash to this function, and it will create the records in the authority table
 312         my ($dbh,$record,$authid,$authtypecode) = @_;
 313 # if authid empty => true add, find a new authid number
 314         if (!$authid) {
 315         my      $sth=$dbh->prepare("select max(authid) from auth_header");
 316                 $sth->execute;
 317                 ($authid)=$sth->fetchrow;
 318                 $authid=$authid+1;
 319         }
 320
 321 ##Modified record may also come here use REPLACE -- bulk import comes here
 322 XML_writeline($record,"authid",$authid,"authorities");
 323 XML_writeline($record,"authtypecode",$authtypecode,"authorities");
 324 my $xml=XML_hash2xml($record);
 325         my $sth=$dbh->prepare("REPLACE auth_header set marcxml=?,  authid=?,authtypecode=?,datecreated=now()");
 326         $sth->execute($xml,$authid,$authtypecode);
 327         $sth->finish;
 328         ZEBRAop($dbh,$authid,'specialUpdate',"authorityserver");
 329 ## If the record is linked to another update the linked authorities with new authid
 330 my @linkids=XML_readline_asarray($record,"linkid","authorities");
 331         foreach my $linkid (@linkids){
 332         ##Modify the record of linked
 333         AUTHaddlink($dbh,$linkid,$authid);
 334         }
 335 return ($authid);
 336 }
 337
 338 sub AUTHaddlink{
 339 my ($dbh,$linkid,$authid)=@_;
 340 my $record=XMLgetauthorityhash($dbh,$linkid);
 341 my $authtypecode=AUTHfind_authtypecode($dbh,$linkid);
 342 #warn "adding l:$linkid,a:$authid,auth:$authtypecode";
 343 XML_writeline($record,"linkid",$authid,"authorities");
 344 my $xml=XML_hash2xml($record);
 345 $dbh->do("lock tables header WRITE");
 346         my $sth=$dbh->prepare("update auth_header set marcxml=? where authid=?");
 347         $sth->execute($xml,$linkid);
 348         $sth->finish;
 349         $dbh->do("unlock tables");
 350         ZEBRAop($dbh,$linkid,'specialUpdate',"authorityserver");
 351 }
 352
 353
 354
 355 sub XMLgetauthority {
 356     # Returns MARC::XML of the authority passed in parameter.
 357     my ( $dbh, $authid ) = @_;
 358     my $sth =  $dbh->prepare("select marcxml from auth_header where authid=? "  );
 359     $sth->execute($authid);
 360  my ($marcxml)=$sth->fetchrow;
 361         $marcxml=Encode::decode('utf8',$marcxml);
 362  return ($marcxml);
 363 }
 364
 365 sub XMLgetauthorityhash {
 366 ## Utility to return  hashed MARCXML
 367 my ($dbh,$authid)=@_;
 368 my $xml=XMLgetauthority($dbh,$authid);
 369 my $xmlhash=XML_xml2hash_onerecord($xml);
 370 return $xmlhash;
 371 }
 372
 373
 374
 375
 376 sub AUTHgetauth_type {
 377         my ($authtypecode) = @_;
 378         my $dbh=C4::Context->dbh;
 379         my $sth=$dbh->prepare("select * from auth_types where authtypecode=?");
 380         $sth->execute($authtypecode);
 381         return $sth->fetchrow_hashref;
 382 }
 383
 384
 385 sub AUTHmodauthority {
 386 ## $record is expected to be an xmlhash
 387         my ($dbh,$authid,$record,$authtypecode)=@_;
 388         my ($oldrecord)=&XMLgetauthorityhash($dbh,$authid);
 389 ### This equality is very dodgy ,It porobaby wont work
 390         if ($oldrecord eq $record) {
 391                 return $authid;
 392         }
 393 ##
 394 my $sth=$dbh->prepare("update auth_header set marcxml=? where authid=?");
 395 # find if linked records exist and delete the link in them
 396 my @linkids=XML_readline_asarray($oldrecord,"linkid","authorities");
 397
 398         foreach my $linkid (@linkids){
 399                 ##Modify the record of linked
 400                 my $linkrecord=XMLgetauthorityhash($dbh,$linkid);
 401                 my $linktypecode=AUTHfind_authtypecode($dbh,$linkid);
 402                 my @linkfields=XML_readline_asarray($linkrecord,"linkid","authorities");
 403                 my $updated;
 404                        foreach my $linkfield (@linkfields){
 405                         if ($linkfield eq $authid){
 406                                 XML_writeline_id($linkrecord,"linkid",$linkfield,"","authorities");
 407                                 $updated=1;
 408                         }
 409                        }#foreach linkfield
 410                         my $linkedxml=XML_hash2xml($linkrecord);
 411                         if ($updated==1){
 412                         $sth->execute($linkedxml,$linkid);
 413                         ZEBRAop($dbh,$linkid,'specialUpdate',"authorityserver");
 414                         }
 415
 416         }#foreach linkid
 417
 418 #Now rewrite the $record to table with an add
 419 $authid=AUTHaddauthority($dbh,$record,$authid,$authtypecode);
 420
 421
 422 ### 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
 423 ### they should have a system preference "dontmerge=1" otherwise by default biblios will be updated
 424
 425 if (C4::Context->preference('dontmerge') ){
 426 # save the file in localfile/modified_authorities
 427         my $cgidir = C4::Context->intranetdir ."/cgi-bin";
 428         unless (opendir(DIR, "$cgidir")) {
 429                         $cgidir = C4::Context->intranetdir."/";
 430         }
 431
 432         my $filename = $cgidir."/localfile/modified_authorities/$authid.authid";
 433         open AUTH, "> $filename";
 434         print AUTH $authid;
 435         close AUTH;
 436 }else{
 437         &merge($dbh,$authid,$record,$authid,$record);
 438 }
 439 return $authid;
 440 }
 441
 442 sub AUTHdelauthority {
 443         my ($dbh,$authid,$keep_biblio) = @_;
 444
 445 # if the keep_biblio is set to 1, then authority entries in biblio are preserved.
 446 # FIXME : delete or not in biblio tables (depending on $keep_biblio flag) is not implemented
 447 ZEBRAop($dbh,$authid,"recordDelete","authorityserver");
 448 }
 449
 450 sub ZEBRAdelauthority {
 451 my ($dbh,$authid)=@_;
 452         $dbh->do("delete from auth_header where authid=$authid") ;
 453 }
 454
 455 sub AUTHfind_authtypecode {
 456         my ($dbh,$authid) = @_;
 457         my $sth = $dbh->prepare("select authtypecode from auth_header where authid=?");
 458         $sth->execute($authid);
 459         my ($authtypecode) = $sth->fetchrow;
 460         return $authtypecode;
 461 }
 462
 463
 464 sub FindDuplicateauth {
 465 ### Should receive an xmlhash
 466         my ($record,$authtypecode)=@_;
 467         my $dbh = C4::Context->dbh;
 468         my $sth = $dbh->prepare("select auth_tag_to_report from auth_types where authtypecode=?");
 469         $sth->execute($authtypecode);
 470         my ($auth_tag_to_report) = $sth->fetchrow;
 471         $sth->finish;
 472         # build a request for authoritysearch
 473         my (@tags, @and_or, @excluding, @operator, @value, $offset, $length);
 474
 475 #       if ($record->field($auth_tag_to_report)) {
 476                                 push @tags, $auth_tag_to_report;
 477                                 push @operator, "all";
 478                                  @value, XML_readline_asarray($record,"","",$auth_tag_to_report);
 479 #                       }
 480
 481         my ($finalresult,$nbresult) = authoritysearch($dbh,\@tags,\@and_or,\@excluding,\@operator,\@value,0,10,$authtypecode);
 482         # there is at least 1 result => return the 1st one
 483         if ($nbresult>0) {
 484                 return @$finalresult[0]->{authid},@$finalresult[0]->{summary};
 485         }
 486         # no result, returns nothing
 487         return;
 488 }
 489
 490 sub getsummary{
 491 ## give this an XMLhash record to return summary
 492 my ($dbh,$record,$authid,$authtypecode)=@_;
 493  my $authref = getauthtype($authtypecode);
 494                 my $summary = $authref->{summary};
 495                 # if the library has a summary defined, use it. Otherwise, build a standard one
 496         if ($summary) {
 497                         my $fields = $record->{'datafield'};
 498                         foreach my $field (@$fields) {
 499                                 my $tag = $field->{'tag'};
 500                                 if ($tag<10) {
 501                                 my $tagvalue = XML_readline_onerecord($record,"","",$field->{tag});
 502                                 $summary =~ s/\[(.?.?.?.?)$tag\*(.*?)]/$1$tagvalue$2\[$1$tag$2]/g;
 503                                 } else {
 504                                         my @subf = XML_readline_withtags($record,"","",$tag);
 505                                         for my $i (0..$#subf) {
 506                                                 my $subfieldcode = $subf[$i][0];
 507                                                 my $subfieldvalue = $subf[$i][1];
 508                                                 my $tagsubf = $tag.$subfieldcode;
 509                                                 $summary =~ s/\[(.?.?.?.?)$tagsubf(.*?)]/$1$subfieldvalue$2\[$1$tagsubf$2]/g;
 510                                         }## each subf
 511                                 }#tag >10
 512                         }##each field
 513                         $summary =~ s/\[(.*?)]//g;
 514                         $summary =~ s/\n/<br>/g;
 515         } else {
 516 ## $summary did not exist create a standard summary
 517                         my $heading; # = $authref->{summary};
 518                         my $altheading;
 519                         my $seeheading;
 520                         my $see;
 521                         my $fields = $record->{datafield};
 522                         if (C4::Context->preference('marcflavour') eq 'UNIMARC') {
 523                         # construct UNIMARC summary, that is quite different from MARC21 one
 524                         foreach my $field (@$fields) {
 525                                 # accepted form
 526                                 if ($field->{tag} = ~/'2..'/) {
 527                                         foreach my $subfield ("a".."z"){
 528                                         ## Fixme-- if UNICODE uses numeric subfields as well add them
 529                                         $heading.=XML_readline_onerecord($record,"","",$field->{tag},$subfield);
 530                                         }
 531                                 }##tag 2..
 532                                 # rejected form(s)
 533                                 if ($field->{tag} = ~/'4..'/) {
 534                                         my $value;
 535                                         foreach my $subfield ("a".."z"){
 536                                         ## Fixme-- if UNICODE uses numeric subfields as well add them
 537                                         $value.=XML_readline_onerecord($record,"","",$field->{tag},$subfield);
 538                                         }
 539                                         $summary.= "&nbsp;&nbsp;&nbsp;<i>".$value."</i><br/>";
 540                                         $summary.= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<i>see:</i> ".$heading."<br/>";
 541                                 }##tag 4..
 542                                 # see :
 543                                 if ($field->{tag} = ~/'5..'/) {
 544                                         my $value;
 545                                         foreach my $subfield ("a".."z"){
 546                                         ## Fixme-- if UNICODE uses numeric subfields as well add them
 547                                         $value.=XML_readline_onerecord($record,"","",$field->{tag},$subfield);
 548                                         }
 549                                         $summary.= "&nbsp;&nbsp;&nbsp;<i>".$value."</i><br/>";
 550                                         $summary.= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<i>see:</i> ".$heading."<br/>";
 551                                 }# tag 5..
 552                                 # // form
 553                                 if ($field->{tag} = ~/'7..'/) {
 554                                         my $value;
 555                                         foreach my $subfield ("a".."z"){
 556                                         ## Fixme-- if UNICODE uses numeric subfields as well add them
 557                                         $value.=XML_readline_onerecord($record,"","",$field->{tag},$subfield);
 558                                         }
 559                                         $seeheading.= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<i>see also:</i> ".$value."<br />";
 560                                         $altheading.= "&nbsp;&nbsp;&nbsp;".$value."<br />";
 561                                         $altheading.= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<i>see also:</i> ".$heading."<br />";
 562                                 }# tag 7..
 563                         }## Foreach fields
 564                                 $summary = "<b>".$heading."</b><br />".$seeheading.$altheading.$summary;
 565                      } else {
 566                         # construct MARC21 summary
 567                         foreach my $field (@$fields) {
 568                                 my $tag="1..";
 569                                   if($field->{tag}  =~ /^$tag/) {
 570                                               if ($field->{tag} eq '150') {
 571                                                 my $value;
 572                                                 foreach my $subfield ("a".."z"){
 573                                                  $value=XML_readline_onerecord($record,"","","150",$subfield);
 574                                                 $heading.="\$".$subfield.$value if $value;
 575                                                         }
 576                                               }else{
 577                                                 foreach my $subfield ("a".."z"){
 578                                                 $heading.=XML_readline_onerecord($record,"","",$field->{tag},$subfield);
 579                                                         }
 580                                              }### tag 150 or else
 581                                    }##tag 1..
 582                                 my $tag="4..";
 583                                  if($field->{tag}  =~ /^$tag/) {
 584                                         foreach my $subfield ("a".."z"){
 585                                                 $seeheading.=XML_readline_onerecord($record,"","",$field->{tag},$subfield);
 586                                                 }
 587                                         $seeheading.= "&nbsp;&nbsp;&nbsp;".$seeheading."<br />";
 588                                         $seeheading.= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<i>see:</i> ".$seeheading."<br />";
 589                                 } #tag 4..
 590                                 my $tag="5..";
 591                                  if($field->{tag}  =~ /^$tag/) {
 592                                         my $value;
 593                                         foreach my $subfield ("a".."z"){
 594                                                 $value.=XML_readline_onerecord($record,"","",$field->{tag},$subfield);
 595                                                 }
 596                                         $seeheading.= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<i>see also:</i> ".$value."<br />";
 597                                         $altheading.= "&nbsp;&nbsp;&nbsp;".$value."<br />";
 598                                         $altheading.= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<i>see also:</i> ".$altheading."<br />";
 599                                 }#tag 5..
 600
 601                         }##for each field
 602                     $summary.=$heading.$seeheading.$altheading;
 603                 }##USMARC vs UNIMARC
 604         }###Summary exists or not
 605 return $summary;
 606 }
 607 sub getdictsummary{
 608 ## give this a XML record to return a brief summary
 609 my ($dbh,$record,$authid,$authtypecode)=@_;
 610  my $authref = getauthtype($authtypecode);
 611                 my $summary = $authref->{summary};
 612                 my $fields = $record->{'datafield'};
 613                 # if the library has a summary defined, use it. Otherwise, build a standard one
 614         if ($summary) {
 615                         foreach my $field (@$fields) {
 616                                 my $tag = $field->{'tag'};
 617                                 if ($tag<10) {
 618                                 my $tagvalue = XML_readline_onerecord($record,"","",$field->{tag});
 619                                 $summary =~ s/\[(.?.?.?.?)$tag\*(.*?)]/$1$tagvalue$2\[$1$tag$2]/g;
 620                                 } else {
 621                                         my @subf = XML_readline_withtags($record,"","",$tag);
 622                                         for my $i (0..$#subf) {
 623                                                 my $subfieldcode = $subf[$i][0];
 624                                                 my $subfieldvalue = $subf[$i][1];
 625                                                 my $tagsubf = $tag.$subfieldcode;
 626                                                 $summary =~ s/\[(.?.?.?.?)$tagsubf(.*?)]/$1$subfieldvalue$2\[$1$tagsubf$2]/g;
 627                                         }## each subf
 628                                 }#tag >10
 629                         }##each field
 630                         $summary =~ s/\[(.*?)]//g;
 631                         $summary =~ s/\n/<br>/g;
 632                 } else {
 633                         my $heading; # = $authref->{summary};
 634                         my $altheading;
 635                         my $seeheading;
 636                         my $see;
 637                         my @fields = $record->{datafields};
 638                         if (C4::Context->preference('marcflavour') eq 'UNIMARC') {
 639                         # construct UNIMARC summary, that is quite different from MARC21 one
 640                         foreach my $field (@$fields) {
 641                                 # accepted form
 642                                 if ($field->{tag} = ~/'2..'/) {
 643                                         foreach my $subfield ("a".."z"){
 644                                         ## Fixme-- if UNICODE uses numeric subfields as well add them
 645                                         $heading.=XML_readline_onerecord($record,"","",$field->{tag},$subfield);
 646                                         }
 647                                 }##tag 2..
 648                         }
 649                                 $summary = $heading;
 650                         } else {
 651                         # construct MARC21 summary
 652                                 foreach my $field (@fields) {
 653                                         if ($field->{tag}=~/'1..'/){
 654                                                 $heading.= XML_readline_onerecord($record,"","",$field->{tag},"a");
 655                                         }
 656                                 } #each fieldd
 657
 658                                 $summary=$heading;
 659                         }# USMARC vs UNIMARC
 660                 }### Summary exists
 661 return $summary;
 662 }
 663
 664
 665 sub merge {
 666 ##mergefrom is authid MARCfrom is marcxml hash of authority
 667 ### mergeto ditto
 668         my ($dbh,$mergefrom,$MARCfrom,$mergeto,$MARCto) = @_;
 669         return unless (defined $MARCfrom);
 670         return unless (defined $MARCto);
 671         my $authtypecodefrom = AUTHfind_authtypecode($dbh,$mergefrom);
 672         my $authtypecodeto = AUTHfind_authtypecode($dbh,$mergeto);
 673         # return if authority does not exist
 674
 675         # search the tag to report
 676         my $sth = $dbh->prepare("select auth_tag_to_report from auth_types where authtypecode=?");
 677         $sth->execute($authtypecodefrom);
 678         my ($auth_tag_to_report) = $sth->fetchrow;
 679         my @record_to;
 680         # search all biblio tags using this authority.
 681         $sth = $dbh->prepare("select distinct tagfield from biblios_subfield_structure where authtypecode=? ");
 682         $sth->execute($authtypecodefrom);
 683 my @tags_using_authtype;
 684         while (my ($tagfield) = $sth->fetchrow) {
 685                 push @tags_using_authtype,$tagfield ;
 686         }
 687 ## The subfield for linking authorities is stored in koha_attr named auth_biblio_link_subf
 688 ## This way we may use whichever subfield we want without harcoding 9 in
 689 my ($dummyfield,$tagsubfield)=MARCfind_marc_from_kohafield("auth_biblio_link_subf","biblios");
 690         # now, find every biblio using this authority
 691 ### try ZOOM search here
 692 my @oConnection;
 693  $oConnection[0]=C4::Context->Zconn("biblioserver");
 694 ##$oConnection[0]->option(elementSetName=>"biblios"); ##  Needs a fix
 695 my $query;
 696 my ($attr2)=MARCfind_attr_from_kohafield("authid");
 697 my $attrfield.=$attr2;
 698 $query= $attrfield." ".$mergefrom;
 699 my ($event,$i);
 700 my $oResult = $oConnection[0]->search_pqf($query);
 701   while (($i = ZOOM::event(\@oConnection)) != 0) {
 702         $event = $oConnection[$i-1]->last_event();
 703         last if $event == ZOOM::Event::ZEND;
 704    }# while event
 705 my $count=$oResult->size();
 706 my @reccache;
 707 my $z=0;
 708 while ( $z<$count ) {
 709 my $rec;
 710         $rec=$oResult->record($z);
 711         my $marcdata = $rec->raw();
 712 my $koharecord=Encode::decode("utf8",$marcdata);
 713 $koharecord=XML_xml2hash($koharecord);
 714  my ( $xmlrecord, @itemsrecord) = XML_separate($koharecord);
 715
 716 push @reccache, $xmlrecord;
 717 $z++;
 718 }
 719 $oResult->destroy();
 720 $oConnection[0]->destroy();
 721       foreach my $xmlhash (@reccache){
 722         my $update;
 723         foreach my $tagfield (@tags_using_authtype){
 724
 725         ###Change the authid in biblio
 726         $xmlhash=XML_writeline_id($xmlhash,$mergefrom,$mergeto,$tagfield,$tagsubfield);
 727         ### delete all subfields of bibliorecord
 728         $xmlhash=XML_delete_withid($xmlhash,$mergeto,$tagfield,$tagsubfield);
 729         ####Read all the data in from authrecord
 730         my @record_to=XML_readline_withtags($MARCto,"","",$auth_tag_to_report);
 731         ##Write the data to biblio
 732                 foreach my $subfield (@record_to) {
 733                 ## Replace the data in MARCXML with the new matching authid
 734                 XML_writeline_withid($xmlhash,$tagsubfield,$mergeto,$subfield->[1],$tagfield,$subfield->[0]);
 735                 $update=1;
 736                 }#foreach  $subfield
 737         }#foreach tagfield
 738                 if ($update==1){
 739                 my $biblionumber=XML_readline_onerecord($xmlhash,"biblionumber","biblios");
 740                 my $frameworkcode=MARCfind_frameworkcode($dbh,$biblionumber);
 741                 NEWmodbiblio($dbh,$biblionumber,$xmlhash,$frameworkcode) ;
 742                 }
 743
 744      }#foreach $xmlhash
 745 }#sub
 746
 747 sub XML_writeline_withid{
 748 ## Only used in authorities to update biblios with matching authids
 749 my ($xml,$idsubf,$id,$newvalue,$tag,$subf)=@_;
 750 my $biblio=$xml->{'datafield'};
 751 my $updated=0;
 752     if ($tag>9){
 753         foreach my $data (@$biblio){
 754                         if ($data->{'tag'} eq $tag){
 755                         my @subfields=$data->{'subfield'};
 756                         foreach my $subfield ( @subfields){
 757                               foreach my $code ( @$subfield){
 758                                 if ($code->{'code'} eq $idsubf && $code->{'content'} eq $id){
 759                                 ###This is the correct tag -- Now reiterate and update
 760                                         my @newsubs;
 761                                           foreach my $code ( @$subfield){
 762                                                 if ($code->{'code'} eq $subf ){
 763                                                 $code->{'content'}=$newvalue;
 764                                                 $updated=1;
 765                                                 }
 766                                            push @newsubs, $code;
 767                                         }## each code updated
 768                                         if (!$updated){
 769                                         ##Create the subfield if it did not exist
 770                                         push @newsubs,{code=>$subf,content=>$newvalue};
 771                                         $data->{subfield}= \@newsubs;
 772                                         $updated=1;
 773                                          }### created
 774                                 }### correct tag with id
 775                               }#each code
 776                         }##each subfield
 777                 }# tag match
 778          }## each datafield
 779     }### tag >9
 780 return $xml;
 781 }
 782 sub XML_delete_withid{
 783 ## Currently  only usedin authorities
 784 ### deletes all the subfields of a matching authid
 785 my ($xml,$id,$tag,$idsubf)=@_;
 786 my $biblio=$xml->{'datafield'};
 787     if ($tag>9){
 788         foreach my $data (@$biblio){
 789                         if ($data->{'tag'} eq $tag){
 790                         my @subfields=$data->{'subfield'};
 791                         foreach my $subfield ( @subfields){
 792                               foreach my $code ( @$subfield){
 793                                 if ($code->{'code'} eq $idsubf && $code->{'content'} eq $id){
 794                                 ###This is the correct tag -- Now reiterate and delete all but id subfield
 795                                           foreach my $code ( @$subfield){
 796                                                 if ($code->{'code'} ne $idsubf ){
 797                                                 $code->{'content'}="";
 798                                                 }
 799                                           }## each code deleted
 800                                 }### correct tag with id
 801                               }#each code
 802                         }## each subfield
 803                 }## tag matches
 804          }## each datafield
 805     }# tag >9
 806 return $xml;
 807 }
 808
 809 sub XML_readline_withtags {
 810 my ($xml,$kohafield,$recordtype,$tag,$subf)=@_;
 811 #$xml represents one record of MARCXML as perlhashed
 812 ## returns an array of read fields--useful for reading repeated fields
 813 ### $recordtype is needed for mapping the correct field if supplied
 814 ### If only $tag is given reads the whole tag
 815 ###Returns subfieldcodes as well
 816 my @value;
 817  ($tag,$subf)=MARCfind_marc_from_kohafield($kohafield,$recordtype) if $kohafield;
 818 if ($tag){
 819 ### Only datafields are read
 820 my $biblio=$xml->{'datafield'};
 821  if ($tag>9){
 822         foreach my $data (@$biblio){
 823             if ($data->{'tag'} eq $tag){
 824                 foreach my $subfield ( $data->{'subfield'}){
 825                     foreach my $code ( @$subfield){
 826                         if ($code->{'code'} eq $subf || !$subf){
 827                         push @value,[$code->{'code'},$code->{'content'}];
 828                         }
 829                    }# each code
 830                 }# each subfield
 831            }### tag found
 832         }## each tag
 833    }##tag >9
 834 }## if tag
 835 return @value;
 836 }
 837
 838 END { }       # module clean-up code here (global destructor)
 839
 840 =back
 841
 842 =head1 AUTHOR
 843
 844 Koha Developement team <info@koha.org>
 845
 846 Paul POULAIN paul.poulain@free.fr
 847
 848 =cut
 849
 850 # $Id$
 851
 852 # Revision 1.30  2006/09/06 16:21:03  tgarip1957
 853 # Clean up before final commits
 854 #
 855 # Revision 1.9.2.6  2005/06/07 10:02:00  tipaul
 856 # porting dictionnary search from head to 2.2. there is now a ... facing titles, author & subject, to search in biblio & authorities existing values.
 857 #
 858 # Revision 1.9.2.5  2005/05/31 14:50:46  tipaul
 859 # fix for authority merging. There was a bug on official installs
 860 #
 861 # Revision 1.9.2.4  2005/05/30 11:24:15  tipaul
 862 # 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)
 863 #
 864 # Revision 1.9.2.3  2005/04/28 08:45:33  tipaul
 865 # porting FindDuplicate feature for authorities from HEAD to rel_2_2, works correctly now.
 866 #
 867 # Revision 1.9.2.2  2005/02/28 14:03:13  tipaul
 868 # * adding search on "main entry" (ie $a subfield) on a given authority (the "search everywhere" field is still here).
 869 # * adding a select box to requet "contain" or "begin with" search.
 870 # * fixing some bug in authority search (related to "main entry" search)
 871 #
 872 # Revision 1.9.2.1  2005/02/24 13:12:13  tipaul
 873 # 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.
 874 # So, it will be done through a cron job.
 875 # (/me agree we need some doc for command line scripts)
 876 #
 877 # Revision 1.9  2004/12/23 09:48:11  tipaul
 878 # Minor changes in summary "exploding" (the 3 digits AFTER the subfield were not on the right place).
 879 #
 880 # Revision 1.8  2004/11/05 10:11:39  tipaul
 881 # export auth_count_usage (bugfix)
 882 #
 883 # Revision 1.7  2004/09/23 16:13:00  tipaul
 884 # Bugfix in modification
 885 #
 886 # Revision 1.6  2004/08/18 16:00:24  tipaul
 887 # fixes for authorities management
 888 #
 889 # Revision 1.5  2004/07/05 13:37:22  doxulting
 890 # First step for working authorities
 891 #
 892 # Revision 1.4  2004/06/22 11:35:37  tipaul
 893 # removing % at the beginning of a string to avoid loooonnnngggg searchs
 894 #
 895 # Revision 1.3  2004/06/17 08:02:13  tipaul
 896 # merging tag & subfield in auth_word for better perfs
 897 #
 898 # Revision 1.2  2004/06/10 08:29:01  tipaul
 899 # MARC authority management (continued)
 900 #
 901 # Revision 1.1  2004/06/07 07:35:01  tipaul
 902 # MARC authority management package
 903 #
 904