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