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::Database;
  23 use C4::Koha;
  24 use MARC::Record;
  25 use C4::Biblio;
  26
  27 use vars qw($VERSION @ISA @EXPORT);
  28
  29 # set the version for version checking
  30 $VERSION = 0.01;
  31
  32 @ISA = qw(Exporter);
  33 @EXPORT = qw(
  34         &AUTHgettagslib
  35         &AUTHfindsubfield
  36         &AUTHfind_authtypecode
  37
  38         &AUTHaddauthority
  39         &AUTHmodauthority
  40         &AUTHdelauthority
  41         &AUTHaddsubfield
  42         &AUTHgetauthority
  43
  44         &authoritysearch
  45
  46         &MARCmodsubfield
  47         &AUTHhtml2marc
  48         &AUTHaddword
  49         &MARCaddword &MARCdelword
  50         &char_decode
  51  );
  52
  53 sub authoritysearch {
  54         my ($dbh, $tags, $and_or, $excluding, $operator, $value, $offset,$length,$authtypecode) = @_;
  55         # build the sql request. She will look like :
  56         # select m1.bibid
  57         #               from auth_subfield_table as m1, auth_subfield_table as m2
  58         #               where m1.authid=m2.authid and
  59         #               (m1.subfieldvalue like "Des%" and m2.subfieldvalue like "27%")
  60
  61         # "Normal" statements
  62         my @normal_tags = ();
  63         my @normal_and_or = ();
  64         my @normal_operator = ();
  65         my @normal_value = ();
  66         # Extracts the NOT statements from the list of statements
  67         for(my $i = 0 ; $i <= $#{$value} ; $i++)
  68         {
  69                 if(@$operator[$i] eq "contains") # if operator is contains, splits the words in separate requests
  70                 {
  71                         foreach my $word (split(/ /, @$value[$i]))
  72                         {
  73                                 unless (C4::Context->stopwords->{uc($word)}) {  #it's NOT a stopword => use it. Otherwise, ignore
  74                                         my $tag = substr(@$tags[$i],0,3);
  75                                         my $subf = substr(@$tags[$i],3,1);
  76                                         push @normal_tags, @$tags[$i];
  77                                         push @normal_and_or, "and";     # assumes "foo" and "bar" if "foo bar" is entered
  78                                         push @normal_operator, @$operator[$i];
  79                                         push @normal_value, $word;
  80                                 }
  81                         }
  82                 }
  83                 else
  84                 {
  85                         push @normal_tags, @$tags[$i];
  86                         push @normal_and_or, @$and_or[$i];
  87                         push @normal_operator, @$operator[$i];
  88                         push @normal_value, @$value[$i];
  89                 }
  90         }
  91
  92         # Finds the basic results without the NOT requests
  93         my ($sql_tables, $sql_where1, $sql_where2) = create_request($dbh,\@normal_tags, \@normal_and_or, \@normal_operator, \@normal_value);
  94
  95         my $sth;
  96
  97         if ($sql_where2) {
  98                 $sth = $dbh->prepare("select distinct m1.authid from auth_header,$sql_tables where  m1.authid=auth_header.authid and auth_header.authtypecode=? and $sql_where2 and ($sql_where1)");
  99                 warn "Q2 : select distinct m1.authid from auth_header,$sql_tables where  m1.authid=auth_header.authid and auth_header.authtypecode=? and $sql_where2 and ($sql_where1)";
 100         } else {
 101                 $sth = $dbh->prepare("select distinct m1.authid from auth_header,$sql_tables where  m1.authid=auth_header.authid and auth_header.authtypecode=? and $sql_where1");
 102                 warn "Q : select distinct m1.authid from auth_header,$sql_tables where  m1.authid=auth_header.authid and auth_header.authtypecode=? and $sql_where1";
 103         }
 104         $sth->execute($authtypecode);
 105         my @result = ();
 106         while (my ($authid) = $sth->fetchrow) {
 107                         warn "AUTH: $authid";
 108                         push @result,$authid;
 109                 }
 110
 111         # we have authid list. Now, loads summary from [offset] to [offset]+[length]
 112         my $counter = $offset;
 113         my @finalresult = ();
 114         my $oldline;
 115         while (($counter <= $#result) && ($counter <= ($offset + $length))) {
 116 #               warn " HERE : $counter, $#result, $offset, $length";
 117                 # get MARC::Record of the authority
 118                 my $record = AUTHgetauthority($dbh,$result[$counter]);
 119                 # then build the summary
 120                 my $authtypecode = AUTHfind_authtypecode($dbh,$result[$counter]);
 121                 my $authref = getauthtype($authtypecode);
 122                 my $summary = $authref->{summary};
 123                 my @fields = $record->fields();
 124                 foreach my $field (@fields) {
 125                         my $tag = $field->tag();
 126                         if ($tag<10) {
 127                         } else {
 128                                 my @subf = $field->subfields;
 129                                 for my $i (0..$#subf) {
 130                                         my $subfieldcode = $subf[$i][0];
 131                                         my $subfieldvalue = $subf[$i][1];
 132                                         my $tagsubf = $tag.$subfieldcode;
 133                                         $summary =~ s/\[(.?.?.?)$tagsubf(.*?)]/$1$subfieldvalue\[$1$tagsubf$2]$2$3/g;
 134                                 }
 135                         }
 136                 }
 137                 $summary =~ s/\[(.*?)]//g;
 138                 $summary =~ s/\n/<br>/g;
 139
 140                 # find biblio MARC field using this authtypecode (to jump to biblio)
 141                 my $authtypecode = AUTHfind_authtypecode($dbh,$result[$counter]);
 142                 my $sth = $dbh->prepare("select distinct tagfield from marc_subfield_structure where authtypecode=?");
 143                 $sth->execute($authtypecode);
 144                 my $tags_using_authtype;
 145                 while (my ($tagfield) = $sth->fetchrow) {
 146 #                       warn "TAG : $tagfield";
 147                         $tags_using_authtype.= $tagfield."9,";
 148                 }
 149                 chop $tags_using_authtype;
 150
 151                 # then add a line for the template loop
 152                 my %newline;
 153                 $newline{summary} = $summary;
 154                 $newline{authid} = $result[$counter];
 155                 $newline{used} = &AUTHcount_usage($result[$counter]);
 156                 $newline{biblio_fields} = $tags_using_authtype;
 157                 $counter++;
 158                 push @finalresult, \%newline;
 159         }
 160         my $nbresults = $#result + 1;
 161         return (\@finalresult, $nbresults);
 162 }
 163
 164 # Creates the SQL Request
 165
 166 sub create_request {
 167         my ($dbh,$tags, $and_or, $operator, $value) = @_;
 168
 169         my $sql_tables; # will contain marc_subfield_table as m1,...
 170         my $sql_where1; # will contain the "true" where
 171         my $sql_where2 = "("; # will contain m1.authid=m2.authid
 172         my $nb_active=0; # will contain the number of "active" entries. and entry is active is a value is provided.
 173         my $nb_table=1; # will contain the number of table. ++ on each entry EXCEPT when an OR  is provided.
 174
 175
 176         for(my $i=0; $i<=@$value;$i++) {
 177                 if (@$value[$i]) {
 178                         $nb_active++;
 179                         if ($nb_active==1) {
 180                                 if (@$operator[$i] eq "start") {
 181                                         $sql_tables .= "auth_subfield_table as m$nb_table,";
 182                                         $sql_where1 .= "(m1.subfieldvalue like ".$dbh->quote("@$value[$i]%");
 183                                         if (@$tags[$i]) {
 184                                                 $sql_where1 .=" and m1.tag+m1.subfieldcode in (@$tags[$i])";
 185                                         }
 186                                         $sql_where1.=")";
 187                                 } elsif (@$operator[$i] eq "contains") {
 188                                 $sql_tables .= "auth_word as m$nb_table,";
 189                                         $sql_where1 .= "(m1.word  like ".$dbh->quote("@$value[$i]%");
 190                                         if (@$tags[$i]) {
 191                                                  $sql_where1 .=" and m1.tagsubfield in (@$tags[$i])";
 192                                         }
 193                                         $sql_where1.=")";
 194                                 } else {
 195
 196                                         $sql_tables .= "auth_subfield_table as m$nb_table,";
 197                                         $sql_where1 .= "(m1.subfieldvalue @$operator[$i] ".$dbh->quote("@$value[$i]");
 198                                         if (@$tags[$i]) {
 199                                                  $sql_where1 .=" and m1.tag+m1.subfieldcode in (@$tags[$i])";
 200                                         }
 201                                         $sql_where1.=")";
 202                                 }
 203                         } else {
 204                                 if (@$operator[$i] eq "start") {
 205                                         $nb_table++;
 206                                         $sql_tables .= "auth_subfield_table as m$nb_table,";
 207                                         $sql_where1 .= "@$and_or[$i] (m$nb_table.subfieldvalue like ".$dbh->quote("@$value[$i]%");
 208                                         if (@$tags[$i]) {
 209                                                 $sql_where1 .=" and m$nb_table.tag+m$nb_table.subfieldcode in (@$tags[$i])";
 210                                         }
 211                                         $sql_where1.=")";
 212                                         $sql_where2 .= "m1.authid=m$nb_table.authid and ";
 213                                 } elsif (@$operator[$i] eq "contains") {
 214                                         if (@$and_or[$i] eq 'and') {
 215                                                 $nb_table++;
 216                                                 $sql_tables .= "auth_word as m$nb_table,";
 217                                                 $sql_where1 .= "@$and_or[$i] (m$nb_table.word like ".$dbh->quote("@$value[$i]%");
 218                                                 if (@$tags[$i]) {
 219                                                         $sql_where1 .=" and m$nb_table.tagsubfield in(@$tags[$i])";
 220                                                 }
 221                                                 $sql_where1.=")";
 222                                                 $sql_where2 .= "m1.authid=m$nb_table.authid and ";
 223                                         } else {
 224                                                 $sql_where1 .= "@$and_or[$i] (m$nb_table.word like ".$dbh->quote("@$value[$i]%");
 225                                                 if (@$tags[$i]) {
 226                                                         $sql_where1 .="  and m$nb_table.tag+m$nb_table.subfieldid in (@$tags[$i])";
 227                                                 }
 228                                                 $sql_where1.=")";
 229                                                 $sql_where2 .= "m1.authid=m$nb_table.authid and ";
 230                                         }
 231                                 } else {
 232                                         $nb_table++;
 233                                         $sql_tables .= "auth_subfield_table as m$nb_table,";
 234                                         $sql_where1 .= "@$and_or[$i] (m$nb_table.subfieldvalue @$operator[$i] ".$dbh->quote(@$value[$i]);
 235                                         if (@$tags[$i]) {
 236                                                 $sql_where1 .="  and m$nb_table.tag+m$nb_table.subfieldcode in (@$tags[$i])";
 237                                         }
 238                                         $sql_where2 .= "m1.authid=m$nb_table.authid and ";
 239                                         $sql_where1.=")";
 240                                 }
 241                         }
 242                 }
 243         }
 244
 245         if($sql_where2 ne "(")  # some datas added to sql_where2, processing
 246         {
 247                 $sql_where2 = substr($sql_where2, 0, (length($sql_where2)-5)); # deletes the trailing ' and '
 248                 $sql_where2 .= ")";
 249         }
 250         else    # no sql_where2 statement, deleting '('
 251         {
 252                 $sql_where2 = "";
 253         }
 254         chop $sql_tables;       # deletes the trailing ','
 255
 256         return ($sql_tables, $sql_where1, $sql_where2);
 257 }
 258
 259
 260 sub AUTHcount_usage {
 261         my ($authid) = @_;
 262         my $dbh = C4::Context->dbh;
 263         # find MARC fields using this authtype
 264         my $authtypecode = AUTHfind_authtypecode($dbh,$authid);
 265         my $sth = $dbh->prepare("select distinct tagfield from marc_subfield_structure where authtypecode=?");
 266         $sth->execute($authtypecode);
 267         my $tags_using_authtype;
 268         while (my ($tagfield) = $sth->fetchrow) {
 269 #               warn "TAG : $tagfield";
 270                 $tags_using_authtype.= "'".$tagfield."9',";
 271         }
 272         chop $tags_using_authtype;
 273         $sth = $dbh->prepare("select count(*) from marc_subfield_table where concat(tag,subfieldcode) in ($tags_using_authtype) and subfieldvalue=?");
 274 #       warn "Q : select count(*) from marc_subfield_table where concat(tag,subfieldcode) in ($tags_using_authtype) and subfieldvalue=$authid";
 275         $sth->execute($authid);
 276         my ($result) = $sth->fetchrow;
 277 #       warn "Authority $authid TOTAL USED : $result";
 278         return $result;
 279 }
 280
 281 # merging 2 authority entries. After a merge, the "from" can be deleted.
 282 # sub AUTHmerge {
 283 #       my ($auth_merge_from,$auth_merge_to) = @_;
 284 #       my $dbh = C4::Context->dbh;
 285 #       # find MARC fields using this authtype
 286 #       my $authtypecode = AUTHfind_authtypecode($dbh,$authid);
 287 #       # retrieve records
 288 #       my $record_from = AUTHgetauthority($dbh,$auth_merge_from);
 289 #       my $record_to = AUTHgetauthority($dbh,$auth_merge_to);
 290 #       my $sth = $dbh->prepare("select distinct tagfield from marc_subfield_structure where authtypecode=?");
 291 #       $sth->execute($authtypecode);
 292 #       my $tags_using_authtype;
 293 #       while (my ($tagfield) = $sth->fetchrow) {
 294 #               warn "TAG : $tagfield";
 295 #               $tags_using_authtype.= "'".$tagfield."9',";
 296 #       }
 297 #       chop $tags_using_authtype;
 298 #       # now, find every biblio using this authority
 299 #       $sth = $dbh->prepare("select bibid,tag,tag_indicator,tagorder from marc_subfield_table where tag+subfieldid in ($tags_using_authtype) and subfieldvalue=?");
 300 #       $sth->execute($authid);
 301 #       # and delete entries before recreating them
 302 #       while (my ($bibid,$tag,$tag_indicator,$tagorder) = $sth->fetchrow) {
 303 #               &MARCdelsubfield($dbh,$bibid,$tag);
 304 #
 305 #       }
 306 #
 307 # }
 308
 309 sub AUTHfind_authtypecode {
 310         my ($dbh,$authid) = @_;
 311         my $sth = $dbh->prepare("select authtypecode from auth_header where authid=?");
 312         $sth->execute($authid);
 313         my ($authtypecode) = $sth->fetchrow;
 314         return $authtypecode;
 315 }
 316
 317
 318 sub AUTHgettagslib {
 319         my ($dbh,$forlibrarian,$authtypecode)= @_;
 320 #       warn "AUTH : $authtypecode";
 321         $authtypecode="" unless $authtypecode;
 322 #       warn "AUTH : $authtypecode";
 323         my $sth;
 324         my $libfield = ($forlibrarian eq 1)? 'liblibrarian' : 'libopac';
 325         # check that framework exists
 326         $sth=$dbh->prepare("select count(*) from auth_tag_structure where authtypecode=?");
 327         $sth->execute($authtypecode);
 328         my ($total) = $sth->fetchrow;
 329         $authtypecode="" unless ($total >0);
 330         $sth=$dbh->prepare("select tagfield,$libfield as lib,mandatory,repeatable from auth_tag_structure where authtypecode=? order by tagfield");
 331         $sth->execute($authtypecode);
 332         my ($lib,$tag,$res,$tab,$mandatory,$repeatable);
 333         while ( ($tag,$lib,$mandatory,$repeatable) = $sth->fetchrow) {
 334                 $res->{$tag}->{lib}=$lib;
 335                 $res->{$tab}->{tab}=""; # XXX
 336                 $res->{$tag}->{mandatory}=$mandatory;
 337                 $res->{$tag}->{repeatable}=$repeatable;
 338         }
 339
 340         $sth=$dbh->prepare("select tagfield,tagsubfield,$libfield as lib,tab, mandatory, repeatable,authorised_value,value_builder,seealso from auth_subfield_structure where authtypecode=? order by tagfield,tagsubfield");
 341         $sth->execute($authtypecode);
 342
 343         my $subfield;
 344         my $authorised_value;
 345         my $thesaurus_category;
 346         my $value_builder;
 347         my $kohafield;
 348         my $seealso;
 349         my $hidden;
 350         my $isurl;
 351         while ( ($tag, $subfield, $lib, $tab, $mandatory, $repeatable,$authorised_value,$value_builder,$seealso) = $sth->fetchrow) {
 352                 $res->{$tag}->{$subfield}->{lib}=$lib;
 353                 $res->{$tag}->{$subfield}->{tab}=$tab;
 354                 $res->{$tag}->{$subfield}->{mandatory}=$mandatory;
 355                 $res->{$tag}->{$subfield}->{repeatable}=$repeatable;
 356                 $res->{$tag}->{$subfield}->{authorised_value}=$authorised_value;
 357                 $res->{$tag}->{$subfield}->{thesaurus_category}=$thesaurus_category;
 358                 $res->{$tag}->{$subfield}->{value_builder}=$value_builder;
 359                 $res->{$tag}->{$subfield}->{seealso}=$seealso;
 360                 $res->{$tag}->{$subfield}->{hidden}=$hidden;
 361                 $res->{$tag}->{$subfield}->{isurl}=$isurl;
 362         }
 363         return $res;
 364 }
 365
 366 sub AUTHaddauthority {
 367 # pass the MARC::Record to this function, and it will create the records in the marc tables
 368         my ($dbh,$record,$authid,$authtypecode) = @_;
 369         my @fields=$record->fields();
 370 #       warn "IN AUTHaddauthority $authid => ".$record->as_formatted;
 371 # adding main table, and retrieving authid
 372 # if authid is sent, then it's not a true add, it's only a re-add, after a delete (ie, a mod)
 373 # if authid empty => true add, find a new authid number
 374         unless ($authid) {
 375                 $dbh->do("lock tables auth_header WRITE,auth_subfield_table WRITE, auth_word WRITE, stopwords READ");
 376                 my $sth=$dbh->prepare("insert into auth_header (datecreated,authtypecode) values (now(),?)");
 377                 $sth->execute($authtypecode);
 378                 $sth=$dbh->prepare("select max(authid) from auth_header");
 379                 $sth->execute;
 380                 ($authid)=$sth->fetchrow;
 381                 $sth->finish;
 382         }
 383         warn "auth : $authid";
 384         my $fieldcount=0;
 385         # now, add subfields...
 386         foreach my $field (@fields) {
 387                 $fieldcount++;
 388                 if ($field->tag() <10) {
 389                                 &AUTHaddsubfield($dbh,$authid,
 390                                                 $field->tag(),
 391                                                 '',
 392                                                 $fieldcount,
 393                                                 '',
 394                                                 1,
 395                                                 $field->data()
 396                                                 );
 397                 } else {
 398                         my @subfields=$field->subfields();
 399                         foreach my $subfieldcount (0..$#subfields) {
 400                                 &AUTHaddsubfield($dbh,$authid,
 401                                                 $field->tag(),
 402                                                 $field->indicator(1).$field->indicator(2),
 403                                                 $fieldcount,
 404                                                 $subfields[$subfieldcount][0],
 405                                                 $subfieldcount+1,
 406                                                 $subfields[$subfieldcount][1]
 407                                                 );
 408                         }
 409                 }
 410         }
 411         $dbh->do("unlock tables");
 412         return $authid;
 413 }
 414
 415
 416 sub AUTHaddsubfield {
 417 # Add a new subfield to a tag into the DB.
 418         my ($dbh,$authid,$tagid,$tag_indicator,$tagorder,$subfieldcode,$subfieldorder,$subfieldvalues) = @_;
 419         # if not value, end of job, we do nothing
 420         if (length($subfieldvalues) ==0) {
 421                 return;
 422         }
 423         if (not($subfieldcode)) {
 424                 $subfieldcode=' ';
 425         }
 426         my @subfieldvalues = split /\|/,$subfieldvalues;
 427         foreach my $subfieldvalue (@subfieldvalues) {
 428                 my $sth=$dbh->prepare("insert into auth_subfield_table (authid,tag,tagorder,tag_indicator,subfieldcode,subfieldorder,subfieldvalue) values (?,?,?,?,?,?,?)");
 429                 $sth->execute($authid,(sprintf "%03s",$tagid),$tagorder,$tag_indicator,$subfieldcode,$subfieldorder,$subfieldvalue);
 430                 if ($sth->errstr) {
 431                         warn "ERROR ==> insert into auth_subfield_table (authid,tag,tagorder,tag_indicator,subfieldcode,subfieldorder,subfieldvalue) values ($authid,$tagid,$tagorder,$tag_indicator,$subfieldcode,$subfieldorder,$subfieldvalue)\n";
 432                 }
 433                 &AUTHaddword($dbh,$authid,$tagid,$tagorder,$subfieldcode,$subfieldorder,$subfieldvalue);
 434         }
 435 }
 436
 437 sub AUTHgetauthority {
 438 # Returns MARC::Record of the biblio passed in parameter.
 439     my ($dbh,$authid)=@_;
 440     my $record = MARC::Record->new();
 441 #---- TODO : the leader is missing
 442         $record->leader('                        ');
 443     my $sth=$dbh->prepare("select authid,subfieldid,tag,tagorder,tag_indicator,subfieldcode,subfieldorder,subfieldvalue
 444                                  from auth_subfield_table
 445                                  where authid=? order by tag,tagorder,subfieldcode
 446                          ");
 447         $sth->execute($authid);
 448         my $prevtagorder=1;
 449         my $prevtag='XXX';
 450         my $previndicator;
 451         my $field; # for >=10 tags
 452         my $prevvalue; # for <10 tags
 453         while (my $row=$sth->fetchrow_hashref) {
 454                 if ($row->{tagorder} ne $prevtagorder || $row->{tag} ne $prevtag) {
 455                         $previndicator.="  ";
 456                         if ($prevtag <10) {
 457                         $record->add_fields((sprintf "%03s",$prevtag),$prevvalue) unless $prevtag eq "XXX"; # ignore the 1st loop
 458                         } else {
 459                                 $record->add_fields($field) unless $prevtag eq "XXX";
 460                         }
 461                         undef $field;
 462                         $prevtagorder=$row->{tagorder};
 463                         $prevtag = $row->{tag};
 464                         $previndicator=$row->{tag_indicator};
 465                         if ($row->{tag}<10) {
 466                                 $prevvalue = $row->{subfieldvalue};
 467                         } else {
 468                                 $field = MARC::Field->new((sprintf "%03s",$prevtag), substr($row->{tag_indicator}.'  ',0,1), substr($row->{tag_indicator}.'  ',1,1), $row->{'subfieldcode'}, $row->{'subfieldvalue'} );
 469                         }
 470                 } else {
 471                         if ($row->{tag} <10) {
 472                                 $record->add_fields((sprintf "%03s",$row->{tag}), $row->{'subfieldvalue'});
 473                         } else {
 474                                 $field->add_subfields($row->{'subfieldcode'}, $row->{'subfieldvalue'} );
 475                         }
 476                         $prevtag= $row->{tag};
 477                         $previndicator=$row->{tag_indicator};
 478                 }
 479         }
 480         # the last has not been included inside the loop... do it now !
 481         if ($prevtag ne "XXX") { # check that we have found something. Otherwise, prevtag is still XXX and we
 482                                                 # must return an empty record, not make MARC::Record fail because we try to
 483                                                 # create a record with XXX as field :-(
 484                 if ($prevtag <10) {
 485                         $record->add_fields($prevtag,$prevvalue);
 486                 } else {
 487         #               my $field = MARC::Field->new( $prevtag, "", "", %subfieldlist);
 488                         $record->add_fields($field);
 489                 }
 490         }
 491         return $record;
 492 }
 493
 494 sub AUTHmodauthority {
 495         my ($dbh,$authid,$record,$delete)=@_;
 496         my $oldrecord=&AUTHgetauthority($dbh,$authid);
 497         if ($oldrecord eq $record) {
 498                 return;
 499         }
 500 # 1st delete the authority,
 501 # 2nd recreate it
 502         &AUTHdelauthority($dbh,$authid,1);
 503         &AUTHaddauthority($dbh,$record,$authid);
 504         # FIXME : modify the authority in biblio too.
 505 }
 506
 507 sub AUTHdelauthority {
 508         my ($dbh,$authid,$keep_biblio) = @_;
 509 # if the keep_biblio is set to 1, then authority entries in biblio are preserved.
 510 # This flag is set when the delauthority is called by modauthority
 511 # due to a too complex structure of MARC (repeatable fields and subfields),
 512 # the best solution for a modif is to delete / recreate the record.
 513
 514         my $record = AUTHgetauthority($dbh,$authid);
 515         $dbh->do("delete from auth_header where authid=$authid");
 516         $dbh->do("delete from auth_subfield_table where authid=$authid");
 517         $dbh->do("delete from auth_word where authid=$authid");
 518 # FIXME : delete or not in biblio tables (depending on $keep_biblio flag)
 519 }
 520
 521 sub AUTHmodsubfield {
 522 # Subroutine changes a subfield value given a subfieldid.
 523         my ($dbh, $subfieldid, $subfieldvalue )=@_;
 524         $dbh->do("lock tables auth_subfield_table WRITE");
 525         my $sth=$dbh->prepare("update auth_subfield_table set subfieldvalue=? where subfieldid=?");
 526         $sth->execute($subfieldvalue, $subfieldid);
 527         $dbh->do("unlock tables");
 528         $sth->finish;
 529         $sth=$dbh->prepare("select authid,tag,tagorder,subfieldcode,subfieldid,subfieldorder from auth_subfield_table where subfieldid=?");
 530         $sth->execute($subfieldid);
 531         my ($authid,$tagid,$tagorder,$subfieldcode,$x,$subfieldorder) = $sth->fetchrow;
 532         $subfieldid=$x;
 533         &AUTHdelword($dbh,$authid,$tagid,$tagorder,$subfieldcode,$subfieldorder);
 534         &AUTHaddword($dbh,$authid,$tagid,$tagorder,$subfieldcode,$subfieldorder,$subfieldvalue);
 535         return($subfieldid, $subfieldvalue);
 536 }
 537
 538 sub AUTHfindsubfield {
 539     my ($dbh,$authid,$tag,$subfieldcode,$subfieldorder,$subfieldvalue) = @_;
 540     my $resultcounter=0;
 541     my $subfieldid;
 542     my $lastsubfieldid;
 543     my $query="select subfieldid from auth_subfield_table where authid=? and tag=? and subfieldcode=?";
 544     my @bind_values = ($authid,$tag, $subfieldcode);
 545     if ($subfieldvalue) {
 546         $query .= " and subfieldvalue=?";
 547         push(@bind_values,$subfieldvalue);
 548     } else {
 549         if ($subfieldorder<1) {
 550             $subfieldorder=1;
 551         }
 552         $query .= " and subfieldorder=?";
 553         push(@bind_values,$subfieldorder);
 554     }
 555     my $sti=$dbh->prepare($query);
 556     $sti->execute(@bind_values);
 557     while (($subfieldid) = $sti->fetchrow) {
 558         $resultcounter++;
 559         $lastsubfieldid=$subfieldid;
 560     }
 561     if ($resultcounter>1) {
 562                 # Error condition.  Values given did not resolve into a unique record.  Don't know what to edit
 563                 # should rarely occur (only if we use subfieldvalue with a value that exists twice, which is strange)
 564                 return -1;
 565     } else {
 566                 return $lastsubfieldid;
 567     }
 568 }
 569
 570 sub AUTHfindsubfieldid {
 571         my ($dbh,$authid,$tag,$tagorder,$subfield,$subfieldorder) = @_;
 572         my $sth=$dbh->prepare("select subfieldid from auth_subfield_table
 573                                 where authid=? and tag=? and tagorder=?
 574                                         and subfieldcode=? and subfieldorder=?");
 575         $sth->execute($authid,$tag,$tagorder,$subfield,$subfieldorder);
 576         my ($res) = $sth->fetchrow;
 577         unless ($res) {
 578                 $sth=$dbh->prepare("select subfieldid from auth_subfield_table
 579                                 where authid=? and tag=? and tagorder=?
 580                                         and subfieldcode=?");
 581                 $sth->execute($authid,$tag,$tagorder,$subfield);
 582                 ($res) = $sth->fetchrow;
 583         }
 584     return $res;
 585 }
 586
 587 sub AUTHfind_authtypecode {
 588         my ($dbh,$authid) = @_;
 589         my $sth = $dbh->prepare("select authtypecode from auth_header where authid=?");
 590         $sth->execute($authid);
 591         my ($authtypecode) = $sth->fetchrow;
 592         return $authtypecode;
 593 }
 594
 595 sub AUTHdelsubfield {
 596 # delete a subfield for $authid / tag / tagorder / subfield / subfieldorder
 597     my ($dbh,$authid,$tag,$tagorder,$subfield,$subfieldorder) = @_;
 598     $dbh->do("delete from auth_subfield_table where authid='$authid' and
 599                         tag='$tag' and tagorder='$tagorder'
 600                         and subfieldcode='$subfield' and subfieldorder='$subfieldorder'
 601                         ");
 602 }
 603
 604 sub AUTHhtml2marc {
 605         my ($dbh,$rtags,$rsubfields,$rvalues,%indicators) = @_;
 606         my $prevtag = -1;
 607         my $record = MARC::Record->new();
 608 #       my %subfieldlist=();
 609         my $prevvalue; # if tag <10
 610         my $field; # if tag >=10
 611         for (my $i=0; $i< @$rtags; $i++) {
 612                 # rebuild MARC::Record
 613                 if (@$rtags[$i] ne $prevtag) {
 614                         if ($prevtag < 10) {
 615                                 if ($prevvalue) {
 616                                         $record->add_fields((sprintf "%03s",$prevtag),$prevvalue);
 617                                 }
 618                         } else {
 619                                 if ($field) {
 620                                         $record->add_fields($field);
 621                                 }
 622                         }
 623                         $indicators{@$rtags[$i]}.='  ';
 624                         if (@$rtags[$i] <10) {
 625                                 $prevvalue= @$rvalues[$i];
 626                         } else {
 627                                 $field = MARC::Field->new( (sprintf "%03s",@$rtags[$i]), substr($indicators{@$rtags[$i]},0,1),substr($indicators{@$rtags[$i]},1,1), @$rsubfields[$i] => @$rvalues[$i]);
 628                         }
 629                         $prevtag = @$rtags[$i];
 630                 } else {
 631                         if (@$rtags[$i] <10) {
 632                                 $prevvalue=@$rvalues[$i];
 633                         } else {
 634                                 if (@$rvalues[$i]) {
 635                                         $field->add_subfields(@$rsubfields[$i] => @$rvalues[$i]);
 636                                 }
 637                         }
 638                         $prevtag= @$rtags[$i];
 639                 }
 640         }
 641         # the last has not been included inside the loop... do it now !
 642         $record->add_fields($field);
 643 #       warn $record->as_formatted;
 644         return $record;
 645 }
 646
 647 sub AUTHaddword {
 648 # split a subfield string and adds it into the word table.
 649 # removes stopwords
 650     my ($dbh,$authid,$tag,$tagorder,$subfieldid,$subfieldorder,$sentence) =@_;
 651     $sentence =~ s/(\.|\?|\:|\!|\'|,|\-|\"|\(|\)|\[|\]|\{|\})/ /g;
 652     my @words = split / /,$sentence;
 653     my $stopwords= C4::Context->stopwords;
 654     my $sth=$dbh->prepare("insert into auth_word (authid, tagsubfield, tagorder, subfieldorder, word, sndx_word)
 655                         values (?,concat(?,?),?,?,?,soundex(?))");
 656     foreach my $word (@words) {
 657 # we record only words longer than 2 car and not in stopwords hash
 658         if (length($word)>2 and !($stopwords->{uc($word)})) {
 659             $sth->execute($authid,$tag,$subfieldid,$tagorder,$subfieldorder,$word,$word);
 660             if ($sth->err()) {
 661                 warn "ERROR ==> insert into auth_word (authid, tagsubfield, tagorder, subfieldorder, word, sndx_word) values ($authid,concat($tag,$subfieldid),$tagorder,$subfieldorder,$word,soundex($word))\n";
 662             }
 663         }
 664     }
 665 }
 666
 667 sub AUTHdelword {
 668 # delete words. this sub deletes all the words from a sentence. a subfield modif is done by a delete then a add
 669     my ($dbh,$authid,$tag,$tagorder,$subfield,$subfieldorder) = @_;
 670     my $sth=$dbh->prepare("delete from auth_word where authid=? and tagsubfield=concat(?,?) and tagorder=? and subfieldorder=?");
 671     $sth->execute($authid,$tag,$subfield,$tagorder,$subfieldorder);
 672 }
 673
 674 sub char_decode {
 675         # converts ISO 5426 coded string to ISO 8859-1
 676         # sloppy code : should be improved in next issue
 677         my ($string,$encoding) = @_ ;
 678         $_ = $string ;
 679 #       $encoding = C4::Context->preference("marcflavour") unless $encoding;
 680         if ($encoding eq "UNIMARC") {
 681                 s/\xe1/Æ/gm ;
 682                 s/\xe2/Ð/gm ;
 683                 s/\xe9/Ø/gm ;
 684                 s/\xec/þ/gm ;
 685                 s/\xf1/æ/gm ;
 686                 s/\xf3/ð/gm ;
 687                 s/\xf9/ø/gm ;
 688                 s/\xfb/ß/gm ;
 689                 s/\xc1\x61/à/gm ;
 690                 s/\xc1\x65/è/gm ;
 691                 s/\xc1\x69/ì/gm ;
 692                 s/\xc1\x6f/ò/gm ;
 693                 s/\xc1\x75/ù/gm ;
 694                 s/\xc1\x41/À/gm ;
 695                 s/\xc1\x45/È/gm ;
 696                 s/\xc1\x49/Ì/gm ;
 697                 s/\xc1\x4f/Ò/gm ;
 698                 s/\xc1\x55/Ù/gm ;
 699                 s/\xc2\x41/Á/gm ;
 700                 s/\xc2\x45/É/gm ;
 701                 s/\xc2\x49/Í/gm ;
 702                 s/\xc2\x4f/Ó/gm ;
 703                 s/\xc2\x55/Ú/gm ;
 704                 s/\xc2\x59/Ý/gm ;
 705                 s/\xc2\x61/á/gm ;
 706                 s/\xc2\x65/é/gm ;
 707                 s/\xc2\x69/í/gm ;
 708                 s/\xc2\x6f/ó/gm ;
 709                 s/\xc2\x75/ú/gm ;
 710                 s/\xc2\x79/ý/gm ;
 711                 s/\xc3\x41/Â/gm ;
 712                 s/\xc3\x45/Ê/gm ;
 713                 s/\xc3\x49/Î/gm ;
 714                 s/\xc3\x4f/Ô/gm ;
 715                 s/\xc3\x55/Û/gm ;
 716                 s/\xc3\x61/â/gm ;
 717                 s/\xc3\x65/ê/gm ;
 718                 s/\xc3\x69/î/gm ;
 719                 s/\xc3\x6f/ô/gm ;
 720                 s/\xc3\x75/û/gm ;
 721                 s/\xc4\x41/Ã/gm ;
 722                 s/\xc4\x4e/Ñ/gm ;
 723                 s/\xc4\x4f/Õ/gm ;
 724                 s/\xc4\x61/ã/gm ;
 725                 s/\xc4\x6e/ñ/gm ;
 726                 s/\xc4\x6f/õ/gm ;
 727                 s/\xc8\x45/Ë/gm ;
 728                 s/\xc8\x49/Ï/gm ;
 729                 s/\xc8\x65/ë/gm ;
 730                 s/\xc8\x69/ï/gm ;
 731                 s/\xc8\x76/ÿ/gm ;
 732                 s/\xc9\x41/Ä/gm ;
 733                 s/\xc9\x4f/Ö/gm ;
 734                 s/\xc9\x55/Ü/gm ;
 735                 s/\xc9\x61/ä/gm ;
 736                 s/\xc9\x6f/ö/gm ;
 737                 s/\xc9\x75/ü/gm ;
 738                 s/\xca\x41/Å/gm ;
 739                 s/\xca\x61/å/gm ;
 740                 s/\xd0\x43/Ç/gm ;
 741                 s/\xd0\x63/ç/gm ;
 742                 # this handles non-sorting blocks (if implementation requires this)
 743                 $string = nsb_clean($_) ;
 744         } elsif ($encoding eq "USMARC" || $encoding eq "MARC21") {
 745                 if(/[\xc1-\xff]/) {
 746                         s/\xe1\x61/à/gm ;
 747                         s/\xe1\x65/è/gm ;
 748                         s/\xe1\x69/ì/gm ;
 749                         s/\xe1\x6f/ò/gm ;
 750                         s/\xe1\x75/ù/gm ;
 751                         s/\xe1\x41/À/gm ;
 752                         s/\xe1\x45/È/gm ;
 753                         s/\xe1\x49/Ì/gm ;
 754                         s/\xe1\x4f/Ò/gm ;
 755                         s/\xe1\x55/Ù/gm ;
 756                         s/\xe2\x41/Á/gm ;
 757                         s/\xe2\x45/É/gm ;
 758                         s/\xe2\x49/Í/gm ;
 759                         s/\xe2\x4f/Ó/gm ;
 760                         s/\xe2\x55/Ú/gm ;
 761                         s/\xe2\x59/Ý/gm ;
 762                         s/\xe2\x61/á/gm ;
 763                         s/\xe2\x65/é/gm ;
 764                         s/\xe2\x69/í/gm ;
 765                         s/\xe2\x6f/ó/gm ;
 766                         s/\xe2\x75/ú/gm ;
 767                         s/\xe2\x79/ý/gm ;
 768                         s/\xe3\x41/Â/gm ;
 769                         s/\xe3\x45/Ê/gm ;
 770                         s/\xe3\x49/Î/gm ;
 771                         s/\xe3\x4f/Ô/gm ;
 772                         s/\xe3\x55/Û/gm ;
 773                         s/\xe3\x61/â/gm ;
 774                         s/\xe3\x65/ê/gm ;
 775                         s/\xe3\x69/î/gm ;
 776                         s/\xe3\x6f/ô/gm ;
 777                         s/\xe3\x75/û/gm ;
 778                         s/\xe4\x41/Ã/gm ;
 779                         s/\xe4\x4e/Ñ/gm ;
 780                         s/\xe4\x4f/Õ/gm ;
 781                         s/\xe4\x61/ã/gm ;
 782                         s/\xe4\x6e/ñ/gm ;
 783                         s/\xe4\x6f/õ/gm ;
 784                         s/\xe8\x45/Ë/gm ;
 785                         s/\xe8\x49/Ï/gm ;
 786                         s/\xe8\x65/ë/gm ;
 787                         s/\xe8\x69/ï/gm ;
 788                         s/\xe8\x76/ÿ/gm ;
 789                         s/\xe9\x41/Ä/gm ;
 790                         s/\xe9\x4f/Ö/gm ;
 791                         s/\xe9\x55/Ü/gm ;
 792                         s/\xe9\x61/ä/gm ;
 793                         s/\xe9\x6f/ö/gm ;
 794                         s/\xe9\x75/ü/gm ;
 795                         s/\xea\x41/Å/gm ;
 796                         s/\xea\x61/å/gm ;
 797                         # this handles non-sorting blocks (if implementation requires this)
 798                         $string = nsb_clean($_) ;
 799                 }
 800         }
 801         return($string) ;
 802 }
 803
 804 sub nsb_clean {
 805         my $NSB = '\x88' ;              # NSB : begin Non Sorting Block
 806         my $NSE = '\x89' ;              # NSE : Non Sorting Block end
 807         # handles non sorting blocks
 808         my ($string) = @_ ;
 809         $_ = $string ;
 810         s/$NSB/(/gm ;
 811         s/[ ]{0,1}$NSE/) /gm ;
 812         $string = $_ ;
 813         return($string) ;
 814 }
 815
 816 END { }       # module clean-up code here (global destructor)
 817
 818 =back
 819
 820 =head1 AUTHOR
 821
 822 Koha Developement team <info@koha.org>
 823
 824 Paul POULAIN paul.poulain@free.fr
 825
 826 =cut
 827
 828 # $Id$
 829 # $Log$
 830 # Revision 1.5  2004/07/05 13:37:22  doxulting
 831 # First step for working authorities
 832 #
 833 # Revision 1.4  2004/06/22 11:35:37  tipaul
 834 # removing % at the beginning of a string to avoid loooonnnngggg searchs
 835 #
 836 # Revision 1.3  2004/06/17 08:02:13  tipaul
 837 # merging tag & subfield in auth_word for better perfs
 838 #
 839 # Revision 1.2  2004/06/10 08:29:01  tipaul
 840 # MARC authority management (continued)
 841 #
 842 # Revision 1.1  2004/06/07 07:35:01  tipaul
 843 # MARC authority management package
 844 #