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 $VERSION = 0.01;
  31
  32 @ISA = qw(Exporter);
  33 @EXPORT = qw(
  34         &AUTHgettagslib
  35         &AUTHfindsubfield
  36         &AUTHfind_authtypecode
  37
  38         &AUTHaddauthority
  39         &AUTHmodauthority
  40         &AUTHdelauthority
  41         &AUTHaddsubfield
  42         &AUTHgetauthority
  43
  44         &AUTHgetauth_type
  45
  46         &authoritysearch
  47
  48         &MARCmodsubfield
  49         &AUTHhtml2marc
  50         &AUTHaddword
  51         &MARCaddword &MARCdelword
  52         &char_decode
  53  );
  54
  55 sub authoritysearch {
  56         my ($dbh, $tags, $and_or, $excluding, $operator, $value, $offset,$length,$authtypecode) = @_;
  57         # build the sql request. She will look like :
  58         # select m1.bibid
  59         #               from auth_subfield_table as m1, auth_subfield_table as m2
  60         #               where m1.authid=m2.authid and
  61         #               (m1.subfieldvalue like "Des%" and m2.subfieldvalue like "27%")
  62
  63         # "Normal" statements
  64         my @normal_tags = ();
  65         my @normal_and_or = ();
  66         my @normal_operator = ();
  67         my @normal_value = ();
  68         # Extracts the NOT statements from the list of statements
  69         for(my $i = 0 ; $i <= $#{$value} ; $i++)
  70         {
  71                 if(@$operator[$i] eq "contains") # if operator is contains, splits the words in separate requests
  72                 {
  73                         foreach my $word (split(/ /, @$value[$i]))
  74                         {
  75                                 unless (C4::Context->stopwords->{uc($word)}) {  #it's NOT a stopword => use it. Otherwise, ignore
  76                                         my $tag = substr(@$tags[$i],0,3);
  77                                         my $subf = substr(@$tags[$i],3,1);
  78                                         push @normal_tags, @$tags[$i];
  79                                         push @normal_and_or, "and";     # assumes "foo" and "bar" if "foo bar" is entered
  80                                         push @normal_operator, @$operator[$i];
  81                                         push @normal_value, $word;
  82                                 }
  83                         }
  84                 }
  85                 else
  86                 {
  87                         push @normal_tags, @$tags[$i];
  88                         push @normal_and_or, @$and_or[$i];
  89                         push @normal_operator, @$operator[$i];
  90                         push @normal_value, @$value[$i];
  91                 }
  92         }
  93
  94         # Finds the basic results without the NOT requests
  95         my ($sql_tables, $sql_where1, $sql_where2) = create_request($dbh,\@normal_tags, \@normal_and_or, \@normal_operator, \@normal_value);
  96
  97         my $sth;
  98
  99         if ($sql_where2) {
 100                 $sth = $dbh->prepare("select distinct m1.authid from auth_header,$sql_tables where  m1.authid=auth_header.authid and auth_header.authtypecode=? and $sql_where2 and ($sql_where1)");
 101                 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)";
 102         } else {
 103                 $sth = $dbh->prepare("select distinct m1.authid from auth_header,$sql_tables where  m1.authid=auth_header.authid and auth_header.authtypecode=? and $sql_where1");
 104                 warn "Q : select distinct m1.authid from auth_header,$sql_tables where  m1.authid=auth_header.authid and auth_header.authtypecode=? and $sql_where1";
 105         }
 106         $sth->execute($authtypecode);
 107         my @result = ();
 108         while (my ($authid) = $sth->fetchrow) {
 109                         push @result,$authid;
 110                 }
 111
 112         # we have authid list. Now, loads summary from [offset] to [offset]+[length]
 113         my $counter = $offset;
 114         my @finalresult = ();
 115         my $oldline;
 116         while (($counter <= $#result) && ($counter <= ($offset + $length))) {
 117 #               warn " HERE : $counter, $#result, $offset, $length";
 118                 # get MARC::Record of the authority
 119                 my $record = AUTHgetauthority($dbh,$result[$counter]);
 120                 # then build the summary
 121                 my $authtypecode = AUTHfind_authtypecode($dbh,$result[$counter]);
 122                 my $authref = getauthtype($authtypecode);
 123                 my $summary = $authref->{summary};
 124                 my @fields = $record->fields();
 125                 foreach my $field (@fields) {
 126                         my $tag = $field->tag();
 127                         if ($tag<10) {
 128                         } else {
 129                                 my @subf = $field->subfields;
 130                                 for my $i (0..$#subf) {
 131                                         my $subfieldcode = $subf[$i][0];
 132                                         my $subfieldvalue = $subf[$i][1];
 133                                         my $tagsubf = $tag.$subfieldcode;
 134                                         $summary =~ s/\[(.?.?.?)$tagsubf(.*?)]/$1$subfieldvalue\[$1$tagsubf$2]$2$3/g;
 135                                 }
 136                         }
 137                 }
 138                 $summary =~ s/\[(.*?)]//g;
 139                 $summary =~ s/\n/<br>/g;
 140
 141                 # find biblio MARC field using this authtypecode (to jump to biblio)
 142                 my $authtypecode = AUTHfind_authtypecode($dbh,$result[$counter]);
 143                 my $sth = $dbh->prepare("select distinct tagfield from marc_subfield_structure where authtypecode=?");
 144                 $sth->execute($authtypecode);
 145                 my $tags_using_authtype;
 146                 while (my ($tagfield) = $sth->fetchrow) {
 147 #                       warn "TAG : $tagfield";
 148                         $tags_using_authtype.= $tagfield."9,";
 149                 }
 150                 chop $tags_using_authtype;
 151
 152                 # then add a line for the template loop
 153                 my %newline;
 154                 $newline{summary} = $summary;
 155                 $newline{authid} = $result[$counter];
 156                 $newline{used} = &AUTHcount_usage($result[$counter]);
 157                 $newline{biblio_fields} = $tags_using_authtype;
 158                 $counter++;
 159                 push @finalresult, \%newline;
 160         }
 161         my $nbresults = $#result + 1;
 162         return (\@finalresult, $nbresults);
 163 }
 164
 165 # Creates the SQL Request
 166
 167 sub create_request {
 168         my ($dbh,$tags, $and_or, $operator, $value) = @_;
 169
 170         my $sql_tables; # will contain marc_subfield_table as m1,...
 171         my $sql_where1; # will contain the "true" where
 172         my $sql_where2 = "("; # will contain m1.authid=m2.authid
 173         my $nb_active=0; # will contain the number of "active" entries. and entry is active is a value is provided.
 174         my $nb_table=1; # will contain the number of table. ++ on each entry EXCEPT when an OR  is provided.
 175
 176
 177         for(my $i=0; $i<=@$value;$i++) {
 178                 if (@$value[$i]) {
 179                         $nb_active++;
 180                         if ($nb_active==1) {
 181                                 if (@$operator[$i] eq "start") {
 182                                         $sql_tables .= "auth_subfield_table as m$nb_table,";
 183                                         $sql_where1 .= "(m1.subfieldvalue like ".$dbh->quote("@$value[$i]%");
 184                                         if (@$tags[$i]) {
 185                                                 $sql_where1 .=" and m1.tag+m1.subfieldcode in (@$tags[$i])";
 186                                         }
 187                                         $sql_where1.=")";
 188                                 } elsif (@$operator[$i] eq "contains") {
 189                                 $sql_tables .= "auth_word as m$nb_table,";
 190                                         $sql_where1 .= "(m1.word  like ".$dbh->quote("@$value[$i]%");
 191                                         if (@$tags[$i]) {
 192                                                  $sql_where1 .=" and m1.tagsubfield in (@$tags[$i])";
 193                                         }
 194                                         $sql_where1.=")";
 195                                 } else {
 196
 197                                         $sql_tables .= "auth_subfield_table as m$nb_table,";
 198                                         $sql_where1 .= "(m1.subfieldvalue @$operator[$i] ".$dbh->quote("@$value[$i]");
 199                                         if (@$tags[$i]) {
 200                                                  $sql_where1 .=" and m1.tag+m1.subfieldcode in (@$tags[$i])";
 201                                         }
 202                                         $sql_where1.=")";
 203                                 }
 204                         } else {
 205                                 if (@$operator[$i] eq "start") {
 206                                         $nb_table++;
 207                                         $sql_tables .= "auth_subfield_table as m$nb_table,";
 208                                         $sql_where1 .= "@$and_or[$i] (m$nb_table.subfieldvalue like ".$dbh->quote("@$value[$i]%");
 209                                         if (@$tags[$i]) {
 210                                                 $sql_where1 .=" and m$nb_table.tag+m$nb_table.subfieldcode in (@$tags[$i])";
 211                                         }
 212                                         $sql_where1.=")";
 213                                         $sql_where2 .= "m1.authid=m$nb_table.authid and ";
 214                                 } elsif (@$operator[$i] eq "contains") {
 215                                         if (@$and_or[$i] eq 'and') {
 216                                                 $nb_table++;
 217                                                 $sql_tables .= "auth_word as m$nb_table,";
 218                                                 $sql_where1 .= "@$and_or[$i] (m$nb_table.word like ".$dbh->quote("@$value[$i]%");
 219                                                 if (@$tags[$i]) {
 220                                                         $sql_where1 .=" and m$nb_table.tagsubfield in(@$tags[$i])";
 221                                                 }
 222                                                 $sql_where1.=")";
 223                                                 $sql_where2 .= "m1.authid=m$nb_table.authid and ";
 224                                         } else {
 225                                                 $sql_where1 .= "@$and_or[$i] (m$nb_table.word like ".$dbh->quote("@$value[$i]%");
 226                                                 if (@$tags[$i]) {
 227                                                         $sql_where1 .="  and m$nb_table.tag+m$nb_table.subfieldid in (@$tags[$i])";
 228                                                 }
 229                                                 $sql_where1.=")";
 230                                                 $sql_where2 .= "m1.authid=m$nb_table.authid and ";
 231                                         }
 232                                 } else {
 233                                         $nb_table++;
 234                                         $sql_tables .= "auth_subfield_table as m$nb_table,";
 235                                         $sql_where1 .= "@$and_or[$i] (m$nb_table.subfieldvalue @$operator[$i] ".$dbh->quote(@$value[$i]);
 236                                         if (@$tags[$i]) {
 237                                                 $sql_where1 .="  and m$nb_table.tag+m$nb_table.subfieldcode in (@$tags[$i])";
 238                                         }
 239                                         $sql_where2 .= "m1.authid=m$nb_table.authid and ";
 240                                         $sql_where1.=")";
 241                                 }
 242                         }
 243                 }
 244         }
 245
 246         if($sql_where2 ne "(")  # some datas added to sql_where2, processing
 247         {
 248                 $sql_where2 = substr($sql_where2, 0, (length($sql_where2)-5)); # deletes the trailing ' and '
 249                 $sql_where2 .= ")";
 250         }
 251         else    # no sql_where2 statement, deleting '('
 252         {
 253                 $sql_where2 = "";
 254         }
 255         chop $sql_tables;       # deletes the trailing ','
 256
 257         return ($sql_tables, $sql_where1, $sql_where2);
 258 }
 259
 260
 261 sub AUTHcount_usage {
 262         my ($authid) = @_;
 263         my $dbh = C4::Context->dbh;
 264         # find MARC fields using this authtype
 265         my $authtypecode = AUTHfind_authtypecode($dbh,$authid);
 266         my $sth = $dbh->prepare("select distinct tagfield from marc_subfield_structure where authtypecode=?");
 267         $sth->execute($authtypecode);
 268         my $tags_using_authtype;
 269         while (my ($tagfield) = $sth->fetchrow) {
 270 #               warn "TAG : $tagfield";
 271                 $tags_using_authtype.= "'".$tagfield."9',";
 272         }
 273         chop $tags_using_authtype;
 274         if ($tags_using_authtype) {
 275                 $sth = $dbh->prepare("select count(*) from marc_subfield_table where concat(tag,subfieldcode) in ($tags_using_authtype) and subfieldvalue=?");
 276         } else {
 277                 $sth = $dbh->prepare("select count(*) from marc_subfield_table where subfieldvalue=?");
 278         }
 279 #       warn "Q : select count(*) from marc_subfield_table where concat(tag,subfieldcode) in ($tags_using_authtype) and subfieldvalue=$authid";
 280         $sth->execute($authid);
 281         my ($result) = $sth->fetchrow;
 282 #       warn "Authority $authid TOTAL USED : $result";
 283         return $result;
 284 }
 285
 286 # merging 2 authority entries. After a merge, the "from" can be deleted.
 287 # sub AUTHmerge {
 288 #       my ($auth_merge_from,$auth_merge_to) = @_;
 289 #       my $dbh = C4::Context->dbh;
 290 #       # find MARC fields using this authtype
 291 #       my $authtypecode = AUTHfind_authtypecode($dbh,$authid);
 292 #       # retrieve records
 293 #       my $record_from = AUTHgetauthority($dbh,$auth_merge_from);
 294 #       my $record_to = AUTHgetauthority($dbh,$auth_merge_to);
 295 #       my $sth = $dbh->prepare("select distinct tagfield from marc_subfield_structure where authtypecode=?");
 296 #       $sth->execute($authtypecode);
 297 #       my $tags_using_authtype;
 298 #       while (my ($tagfield) = $sth->fetchrow) {
 299 #               warn "TAG : $tagfield";
 300 #               $tags_using_authtype.= "'".$tagfield."9',";
 301 #       }
 302 #       chop $tags_using_authtype;
 303 #       # now, find every biblio using this authority
 304 #       $sth = $dbh->prepare("select bibid,tag,tag_indicator,tagorder from marc_subfield_table where tag+subfieldid in ($tags_using_authtype) and subfieldvalue=?");
 305 #       $sth->execute($authid);
 306 #       # and delete entries before recreating them
 307 #       while (my ($bibid,$tag,$tag_indicator,$tagorder) = $sth->fetchrow) {
 308 #               &MARCdelsubfield($dbh,$bibid,$tag);
 309 #
 310 #       }
 311 #
 312 # }
 313
 314 sub AUTHfind_authtypecode {
 315         my ($dbh,$authid) = @_;
 316         my $sth = $dbh->prepare("select authtypecode from auth_header where authid=?");
 317         $sth->execute($authid);
 318         my ($authtypecode) = $sth->fetchrow;
 319         return $authtypecode;
 320 }
 321
 322
 323 sub AUTHgettagslib {
 324         my ($dbh,$forlibrarian,$authtypecode)= @_;
 325         $authtypecode="" unless $authtypecode;
 326         my $sth;
 327         my $libfield = ($forlibrarian eq 1)? 'liblibrarian' : 'libopac';
 328         # check that framework exists
 329         $sth=$dbh->prepare("select count(*) from auth_tag_structure where authtypecode=?");
 330         $sth->execute($authtypecode);
 331         my ($total) = $sth->fetchrow;
 332         $authtypecode="" unless ($total >0);
 333         $sth=$dbh->prepare("select tagfield,$libfield as lib,mandatory,repeatable from auth_tag_structure where authtypecode=? order by tagfield");
 334         $sth->execute($authtypecode);
 335         my ($lib,$tag,$res,$tab,$mandatory,$repeatable);
 336         while ( ($tag,$lib,$mandatory,$repeatable) = $sth->fetchrow) {
 337                 $res->{$tag}->{lib}=$lib;
 338                 $res->{$tab}->{tab}=""; # XXX
 339                 $res->{$tag}->{mandatory}=$mandatory;
 340                 $res->{$tag}->{repeatable}=$repeatable;
 341         }
 342
 343         $sth=$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");
 344         $sth->execute($authtypecode);
 345
 346         my $subfield;
 347         my $authorised_value;
 348         my $thesaurus_category;
 349         my $value_builder;
 350         my $kohafield;
 351         my $seealso;
 352         my $hidden;
 353         my $isurl;
 354         while ( ($tag, $subfield, $lib, $tab, $mandatory, $repeatable,$authorised_value,$value_builder,$seealso) = $sth->fetchrow) {
 355                 $res->{$tag}->{$subfield}->{lib}=$lib;
 356                 $res->{$tag}->{$subfield}->{tab}=$tab;
 357                 $res->{$tag}->{$subfield}->{mandatory}=$mandatory;
 358                 $res->{$tag}->{$subfield}->{repeatable}=$repeatable;
 359                 $res->{$tag}->{$subfield}->{authorised_value}=$authorised_value;
 360                 $res->{$tag}->{$subfield}->{thesaurus_category}=$thesaurus_category;
 361                 $res->{$tag}->{$subfield}->{value_builder}=$value_builder;
 362                 $res->{$tag}->{$subfield}->{seealso}=$seealso;
 363                 $res->{$tag}->{$subfield}->{hidden}=$hidden;
 364                 $res->{$tag}->{$subfield}->{isurl}=$isurl;
 365         }
 366         return $res;
 367 }
 368
 369 sub AUTHaddauthority {
 370 # pass the MARC::Record to this function, and it will create the records in the marc tables
 371         my ($dbh,$record,$authid,$authtypecode) = @_;
 372         my @fields=$record->fields();
 373 #       warn "IN AUTHaddauthority $authid => ".$record->as_formatted;
 374 # adding main table, and retrieving authid
 375 # if authid is sent, then it's not a true add, it's only a re-add, after a delete (ie, a mod)
 376 # if authid empty => true add, find a new authid number
 377         unless ($authid) {
 378                 $dbh->do("lock tables auth_header WRITE,auth_subfield_table WRITE, auth_word WRITE, stopwords READ");
 379                 my $sth=$dbh->prepare("insert into auth_header (datecreated,authtypecode) values (now(),?)");
 380                 $sth->execute($authtypecode);
 381                 $sth=$dbh->prepare("select max(authid) from auth_header");
 382                 $sth->execute;
 383                 ($authid)=$sth->fetchrow;
 384                 $sth->finish;
 385         }
 386         my $fieldcount=0;
 387         # now, add subfields...
 388         foreach my $field (@fields) {
 389                 $fieldcount++;
 390                 if ($field->tag() <10) {
 391                                 &AUTHaddsubfield($dbh,$authid,
 392                                                 $field->tag(),
 393                                                 '',
 394                                                 $fieldcount,
 395                                                 '',
 396                                                 1,
 397                                                 $field->data()
 398                                                 );
 399                 } else {
 400                         my @subfields=$field->subfields();
 401                         foreach my $subfieldcount (0..$#subfields) {
 402                                 &AUTHaddsubfield($dbh,$authid,
 403                                                 $field->tag(),
 404                                                 $field->indicator(1).$field->indicator(2),
 405                                                 $fieldcount,
 406                                                 $subfields[$subfieldcount][0],
 407                                                 $subfieldcount+1,
 408                                                 $subfields[$subfieldcount][1]
 409                                                 );
 410                         }
 411                 }
 412         }
 413         $dbh->do("unlock tables");
 414         return $authid;
 415 }
 416
 417
 418 sub AUTHaddsubfield {
 419 # Add a new subfield to a tag into the DB.
 420         my ($dbh,$authid,$tagid,$tag_indicator,$tagorder,$subfieldcode,$subfieldorder,$subfieldvalues) = @_;
 421         # if not value, end of job, we do nothing
 422         if (length($subfieldvalues) ==0) {
 423                 return;
 424         }
 425         if (not($subfieldcode)) {
 426                 $subfieldcode=' ';
 427         }
 428         my @subfieldvalues = split /\|/,$subfieldvalues;
 429         foreach my $subfieldvalue (@subfieldvalues) {
 430                 my $sth=$dbh->prepare("insert into auth_subfield_table (authid,tag,tagorder,tag_indicator,subfieldcode,subfieldorder,subfieldvalue) values (?,?,?,?,?,?,?)");
 431                 $sth->execute($authid,(sprintf "%03s",$tagid),$tagorder,$tag_indicator,$subfieldcode,$subfieldorder,$subfieldvalue);
 432                 if ($sth->errstr) {
 433                         warn "ERROR ==> insert into auth_subfield_table (authid,tag,tagorder,tag_indicator,subfieldcode,subfieldorder,subfieldvalue) values ($authid,$tagid,$tagorder,$tag_indicator,$subfieldcode,$subfieldorder,$subfieldvalue)\n";
 434                 }
 435                 &AUTHaddword($dbh,$authid,$tagid,$tagorder,$subfieldcode,$subfieldorder,$subfieldvalue);
 436         }
 437 }
 438
 439 sub AUTHgetauthority {
 440 # Returns MARC::Record of the biblio passed in parameter.
 441     my ($dbh,$authid)=@_;
 442     my $record = MARC::Record->new();
 443 #---- TODO : the leader is missing
 444         $record->leader('                        ');
 445     my $sth=$dbh->prepare("select authid,subfieldid,tag,tagorder,tag_indicator,subfieldcode,subfieldorder,subfieldvalue
 446                                  from auth_subfield_table
 447                                  where authid=? order by tag,tagorder,subfieldcode
 448                          ");
 449         $sth->execute($authid);
 450         my $prevtagorder=1;
 451         my $prevtag='XXX';
 452         my $previndicator;
 453         my $field; # for >=10 tags
 454         my $prevvalue; # for <10 tags
 455         while (my $row=$sth->fetchrow_hashref) {
 456                 if ($row->{tagorder} ne $prevtagorder || $row->{tag} ne $prevtag) {
 457                         $previndicator.="  ";
 458                         if ($prevtag <10) {
 459                         $record->add_fields((sprintf "%03s",$prevtag),$prevvalue) unless $prevtag eq "XXX"; # ignore the 1st loop
 460                         } else {
 461                                 $record->add_fields($field) unless $prevtag eq "XXX";
 462                         }
 463                         undef $field;
 464                         $prevtagorder=$row->{tagorder};
 465                         $prevtag = $row->{tag};
 466                         $previndicator=$row->{tag_indicator};
 467                         if ($row->{tag}<10) {
 468                                 $prevvalue = $row->{subfieldvalue};
 469                         } else {
 470                                 $field = MARC::Field->new((sprintf "%03s",$prevtag), substr($row->{tag_indicator}.'  ',0,1), substr($row->{tag_indicator}.'  ',1,1), $row->{'subfieldcode'}, $row->{'subfieldvalue'} );
 471                         }
 472                 } else {
 473                         if ($row->{tag} <10) {
 474                                 $record->add_fields((sprintf "%03s",$row->{tag}), $row->{'subfieldvalue'});
 475                         } else {
 476                                 $field->add_subfields($row->{'subfieldcode'}, $row->{'subfieldvalue'} );
 477                         }
 478                         $prevtag= $row->{tag};
 479                         $previndicator=$row->{tag_indicator};
 480                 }
 481         }
 482         # the last has not been included inside the loop... do it now !
 483         if ($prevtag ne "XXX") { # check that we have found something. Otherwise, prevtag is still XXX and we
 484                                                 # must return an empty record, not make MARC::Record fail because we try to
 485                                                 # create a record with XXX as field :-(
 486                 if ($prevtag <10) {
 487                         $record->add_fields($prevtag,$prevvalue);
 488                 } else {
 489         #               my $field = MARC::Field->new( $prevtag, "", "", %subfieldlist);
 490                         $record->add_fields($field);
 491                 }
 492         }
 493         return $record;
 494 }
 495
 496 sub AUTHgetauth_type {
 497         my ($authtypecode) = @_;
 498         my $dbh=C4::Context->dbh;
 499         my $sth=$dbh->prepare("select * from auth_types where authtypecode=?");
 500         $sth->execute($authtypecode);
 501         return $sth->fetchrow_hashref;
 502 }
 503 sub AUTHmodauthority {
 504         my ($dbh,$authid,$record,$delete)=@_;
 505         my $oldrecord=&AUTHgetauthority($dbh,$authid);
 506         if ($oldrecord eq $record) {
 507                 return;
 508         }
 509 # 1st delete the authority,
 510 # 2nd recreate it
 511         &AUTHdelauthority($dbh,$authid,1);
 512         &AUTHaddauthority($dbh,$record,$authid,AUTHfind_authtypecode($dbh,$authid));
 513         # FIXME : modify the authority in biblio too.
 514 }
 515
 516 sub AUTHdelauthority {
 517         my ($dbh,$authid,$keep_biblio) = @_;
 518 # if the keep_biblio is set to 1, then authority entries in biblio are preserved.
 519 # This flag is set when the delauthority is called by modauthority
 520 # due to a too complex structure of MARC (repeatable fields and subfields),
 521 # the best solution for a modif is to delete / recreate the record.
 522
 523         my $record = AUTHgetauthority($dbh,$authid);
 524         $dbh->do("delete from auth_header where authid=$authid") unless $keep_biblio;
 525         $dbh->do("delete from auth_subfield_table where authid=$authid");
 526         $dbh->do("delete from auth_word where authid=$authid");
 527 # FIXME : delete or not in biblio tables (depending on $keep_biblio flag)
 528 }
 529
 530 sub AUTHmodsubfield {
 531 # Subroutine changes a subfield value given a subfieldid.
 532         my ($dbh, $subfieldid, $subfieldvalue )=@_;
 533         $dbh->do("lock tables auth_subfield_table WRITE");
 534         my $sth=$dbh->prepare("update auth_subfield_table set subfieldvalue=? where subfieldid=?");
 535         $sth->execute($subfieldvalue, $subfieldid);
 536         $dbh->do("unlock tables");
 537         $sth->finish;
 538         $sth=$dbh->prepare("select authid,tag,tagorder,subfieldcode,subfieldid,subfieldorder from auth_subfield_table where subfieldid=?");
 539         $sth->execute($subfieldid);
 540         my ($authid,$tagid,$tagorder,$subfieldcode,$x,$subfieldorder) = $sth->fetchrow;
 541         $subfieldid=$x;
 542         &AUTHdelword($dbh,$authid,$tagid,$tagorder,$subfieldcode,$subfieldorder);
 543         &AUTHaddword($dbh,$authid,$tagid,$tagorder,$subfieldcode,$subfieldorder,$subfieldvalue);
 544         return($subfieldid, $subfieldvalue);
 545 }
 546
 547 sub AUTHfindsubfield {
 548     my ($dbh,$authid,$tag,$subfieldcode,$subfieldorder,$subfieldvalue) = @_;
 549     my $resultcounter=0;
 550     my $subfieldid;
 551     my $lastsubfieldid;
 552     my $query="select subfieldid from auth_subfield_table where authid=? and tag=? and subfieldcode=?";
 553     my @bind_values = ($authid,$tag, $subfieldcode);
 554     if ($subfieldvalue) {
 555         $query .= " and subfieldvalue=?";
 556         push(@bind_values,$subfieldvalue);
 557     } else {
 558         if ($subfieldorder<1) {
 559             $subfieldorder=1;
 560         }
 561         $query .= " and subfieldorder=?";
 562         push(@bind_values,$subfieldorder);
 563     }
 564     my $sti=$dbh->prepare($query);
 565     $sti->execute(@bind_values);
 566     while (($subfieldid) = $sti->fetchrow) {
 567         $resultcounter++;
 568         $lastsubfieldid=$subfieldid;
 569     }
 570     if ($resultcounter>1) {
 571                 # Error condition.  Values given did not resolve into a unique record.  Don't know what to edit
 572                 # should rarely occur (only if we use subfieldvalue with a value that exists twice, which is strange)
 573                 return -1;
 574     } else {
 575                 return $lastsubfieldid;
 576     }
 577 }
 578
 579 sub AUTHfindsubfieldid {
 580         my ($dbh,$authid,$tag,$tagorder,$subfield,$subfieldorder) = @_;
 581         my $sth=$dbh->prepare("select subfieldid from auth_subfield_table
 582                                 where authid=? and tag=? and tagorder=?
 583                                         and subfieldcode=? and subfieldorder=?");
 584         $sth->execute($authid,$tag,$tagorder,$subfield,$subfieldorder);
 585         my ($res) = $sth->fetchrow;
 586         unless ($res) {
 587                 $sth=$dbh->prepare("select subfieldid from auth_subfield_table
 588                                 where authid=? and tag=? and tagorder=?
 589                                         and subfieldcode=?");
 590                 $sth->execute($authid,$tag,$tagorder,$subfield);
 591                 ($res) = $sth->fetchrow;
 592         }
 593     return $res;
 594 }
 595
 596 sub AUTHfind_authtypecode {
 597         my ($dbh,$authid) = @_;
 598         my $sth = $dbh->prepare("select authtypecode from auth_header where authid=?");
 599         $sth->execute($authid);
 600         my ($authtypecode) = $sth->fetchrow;
 601         return $authtypecode;
 602 }
 603
 604 sub AUTHdelsubfield {
 605 # delete a subfield for $authid / tag / tagorder / subfield / subfieldorder
 606     my ($dbh,$authid,$tag,$tagorder,$subfield,$subfieldorder) = @_;
 607     $dbh->do("delete from auth_subfield_table where authid='$authid' and
 608                         tag='$tag' and tagorder='$tagorder'
 609                         and subfieldcode='$subfield' and subfieldorder='$subfieldorder'
 610                         ");
 611 }
 612
 613 sub AUTHhtml2marc {
 614         my ($dbh,$rtags,$rsubfields,$rvalues,%indicators) = @_;
 615         my $prevtag = -1;
 616         my $record = MARC::Record->new();
 617 #       my %subfieldlist=();
 618         my $prevvalue; # if tag <10
 619         my $field; # if tag >=10
 620         for (my $i=0; $i< @$rtags; $i++) {
 621                 # rebuild MARC::Record
 622                 if (@$rtags[$i] ne $prevtag) {
 623                         if ($prevtag < 10) {
 624                                 if ($prevvalue) {
 625                                         $record->add_fields((sprintf "%03s",$prevtag),$prevvalue);
 626                                 }
 627                         } else {
 628                                 if ($field) {
 629                                         $record->add_fields($field);
 630                                 }
 631                         }
 632                         $indicators{@$rtags[$i]}.='  ';
 633                         if (@$rtags[$i] <10) {
 634                                 $prevvalue= @$rvalues[$i];
 635                         } else {
 636                                 $field = MARC::Field->new( (sprintf "%03s",@$rtags[$i]), substr($indicators{@$rtags[$i]},0,1),substr($indicators{@$rtags[$i]},1,1), @$rsubfields[$i] => @$rvalues[$i]);
 637                         }
 638                         $prevtag = @$rtags[$i];
 639                 } else {
 640                         if (@$rtags[$i] <10) {
 641                                 $prevvalue=@$rvalues[$i];
 642                         } else {
 643                                 if (@$rvalues[$i]) {
 644                                         $field->add_subfields(@$rsubfields[$i] => @$rvalues[$i]);
 645                                 }
 646                         }
 647                         $prevtag= @$rtags[$i];
 648                 }
 649         }
 650         # the last has not been included inside the loop... do it now !
 651         $record->add_fields($field);
 652 #       warn $record->as_formatted;
 653         return $record;
 654 }
 655
 656 sub AUTHaddword {
 657 # split a subfield string and adds it into the word table.
 658 # removes stopwords
 659     my ($dbh,$authid,$tag,$tagorder,$subfieldid,$subfieldorder,$sentence) =@_;
 660     $sentence =~ s/(\.|\?|\:|\!|\'|,|\-|\"|\(|\)|\[|\]|\{|\})/ /g;
 661     my @words = split / /,$sentence;
 662     my $stopwords= C4::Context->stopwords;
 663     my $sth=$dbh->prepare("insert into auth_word (authid, tagsubfield, tagorder, subfieldorder, word, sndx_word)
 664                         values (?,concat(?,?),?,?,?,soundex(?))");
 665     foreach my $word (@words) {
 666 # we record only words longer than 2 car and not in stopwords hash
 667         if (length($word)>2 and !($stopwords->{uc($word)})) {
 668             $sth->execute($authid,$tag,$subfieldid,$tagorder,$subfieldorder,$word,$word);
 669             if ($sth->err()) {
 670                 warn "ERROR ==> insert into auth_word (authid, tagsubfield, tagorder, subfieldorder, word, sndx_word) values ($authid,concat($tag,$subfieldid),$tagorder,$subfieldorder,$word,soundex($word))\n";
 671             }
 672         }
 673     }
 674 }
 675
 676 sub AUTHdelword {
 677 # delete words. this sub deletes all the words from a sentence. a subfield modif is done by a delete then a add
 678     my ($dbh,$authid,$tag,$tagorder,$subfield,$subfieldorder) = @_;
 679     my $sth=$dbh->prepare("delete from auth_word where authid=? and tagsubfield=concat(?,?) and tagorder=? and subfieldorder=?");
 680     $sth->execute($authid,$tag,$subfield,$tagorder,$subfieldorder);
 681 }
 682
 683 sub char_decode {
 684         # converts ISO 5426 coded string to ISO 8859-1
 685         # sloppy code : should be improved in next issue
 686         my ($string,$encoding) = @_ ;
 687         $_ = $string ;
 688 #       $encoding = C4::Context->preference("marcflavour") unless $encoding;
 689         if ($encoding eq "UNIMARC") {
 690                 s/\xe1/Æ/gm ;
 691                 s/\xe2/Ð/gm ;
 692                 s/\xe9/Ø/gm ;
 693                 s/\xec/þ/gm ;
 694                 s/\xf1/æ/gm ;
 695                 s/\xf3/ð/gm ;
 696                 s/\xf9/ø/gm ;
 697                 s/\xfb/ß/gm ;
 698                 s/\xc1\x61/à/gm ;
 699                 s/\xc1\x65/è/gm ;
 700                 s/\xc1\x69/ì/gm ;
 701                 s/\xc1\x6f/ò/gm ;
 702                 s/\xc1\x75/ù/gm ;
 703                 s/\xc1\x41/À/gm ;
 704                 s/\xc1\x45/È/gm ;
 705                 s/\xc1\x49/Ì/gm ;
 706                 s/\xc1\x4f/Ò/gm ;
 707                 s/\xc1\x55/Ù/gm ;
 708                 s/\xc2\x41/Á/gm ;
 709                 s/\xc2\x45/É/gm ;
 710                 s/\xc2\x49/Í/gm ;
 711                 s/\xc2\x4f/Ó/gm ;
 712                 s/\xc2\x55/Ú/gm ;
 713                 s/\xc2\x59/Ý/gm ;
 714                 s/\xc2\x61/á/gm ;
 715                 s/\xc2\x65/é/gm ;
 716                 s/\xc2\x69/í/gm ;
 717                 s/\xc2\x6f/ó/gm ;
 718                 s/\xc2\x75/ú/gm ;
 719                 s/\xc2\x79/ý/gm ;
 720                 s/\xc3\x41/Â/gm ;
 721                 s/\xc3\x45/Ê/gm ;
 722                 s/\xc3\x49/Î/gm ;
 723                 s/\xc3\x4f/Ô/gm ;
 724                 s/\xc3\x55/Û/gm ;
 725                 s/\xc3\x61/â/gm ;
 726                 s/\xc3\x65/ê/gm ;
 727                 s/\xc3\x69/î/gm ;
 728                 s/\xc3\x6f/ô/gm ;
 729                 s/\xc3\x75/û/gm ;
 730                 s/\xc4\x41/Ã/gm ;
 731                 s/\xc4\x4e/Ñ/gm ;
 732                 s/\xc4\x4f/Õ/gm ;
 733                 s/\xc4\x61/ã/gm ;
 734                 s/\xc4\x6e/ñ/gm ;
 735                 s/\xc4\x6f/õ/gm ;
 736                 s/\xc8\x45/Ë/gm ;
 737                 s/\xc8\x49/Ï/gm ;
 738                 s/\xc8\x65/ë/gm ;
 739                 s/\xc8\x69/ï/gm ;
 740                 s/\xc8\x76/ÿ/gm ;
 741                 s/\xc9\x41/Ä/gm ;
 742                 s/\xc9\x4f/Ö/gm ;
 743                 s/\xc9\x55/Ü/gm ;
 744                 s/\xc9\x61/ä/gm ;
 745                 s/\xc9\x6f/ö/gm ;
 746                 s/\xc9\x75/ü/gm ;
 747                 s/\xca\x41/Å/gm ;
 748                 s/\xca\x61/å/gm ;
 749                 s/\xd0\x43/Ç/gm ;
 750                 s/\xd0\x63/ç/gm ;
 751                 # this handles non-sorting blocks (if implementation requires this)
 752                 $string = nsb_clean($_) ;
 753         } elsif ($encoding eq "USMARC" || $encoding eq "MARC21") {
 754                 if(/[\xc1-\xff]/) {
 755                         s/\xe1\x61/à/gm ;
 756                         s/\xe1\x65/è/gm ;
 757                         s/\xe1\x69/ì/gm ;
 758                         s/\xe1\x6f/ò/gm ;
 759                         s/\xe1\x75/ù/gm ;
 760                         s/\xe1\x41/À/gm ;
 761                         s/\xe1\x45/È/gm ;
 762                         s/\xe1\x49/Ì/gm ;
 763                         s/\xe1\x4f/Ò/gm ;
 764                         s/\xe1\x55/Ù/gm ;
 765                         s/\xe2\x41/Á/gm ;
 766                         s/\xe2\x45/É/gm ;
 767                         s/\xe2\x49/Í/gm ;
 768                         s/\xe2\x4f/Ó/gm ;
 769                         s/\xe2\x55/Ú/gm ;
 770                         s/\xe2\x59/Ý/gm ;
 771                         s/\xe2\x61/á/gm ;
 772                         s/\xe2\x65/é/gm ;
 773                         s/\xe2\x69/í/gm ;
 774                         s/\xe2\x6f/ó/gm ;
 775                         s/\xe2\x75/ú/gm ;
 776                         s/\xe2\x79/ý/gm ;
 777                         s/\xe3\x41/Â/gm ;
 778                         s/\xe3\x45/Ê/gm ;
 779                         s/\xe3\x49/Î/gm ;
 780                         s/\xe3\x4f/Ô/gm ;
 781                         s/\xe3\x55/Û/gm ;
 782                         s/\xe3\x61/â/gm ;
 783                         s/\xe3\x65/ê/gm ;
 784                         s/\xe3\x69/î/gm ;
 785                         s/\xe3\x6f/ô/gm ;
 786                         s/\xe3\x75/û/gm ;
 787                         s/\xe4\x41/Ã/gm ;
 788                         s/\xe4\x4e/Ñ/gm ;
 789                         s/\xe4\x4f/Õ/gm ;
 790                         s/\xe4\x61/ã/gm ;
 791                         s/\xe4\x6e/ñ/gm ;
 792                         s/\xe4\x6f/õ/gm ;
 793                         s/\xe8\x45/Ë/gm ;
 794                         s/\xe8\x49/Ï/gm ;
 795                         s/\xe8\x65/ë/gm ;
 796                         s/\xe8\x69/ï/gm ;
 797                         s/\xe8\x76/ÿ/gm ;
 798                         s/\xe9\x41/Ä/gm ;
 799                         s/\xe9\x4f/Ö/gm ;
 800                         s/\xe9\x55/Ü/gm ;
 801                         s/\xe9\x61/ä/gm ;
 802                         s/\xe9\x6f/ö/gm ;
 803                         s/\xe9\x75/ü/gm ;
 804                         s/\xea\x41/Å/gm ;
 805                         s/\xea\x61/å/gm ;
 806                         # this handles non-sorting blocks (if implementation requires this)
 807                         $string = nsb_clean($_) ;
 808                 }
 809         }
 810         return($string) ;
 811 }
 812
 813 sub nsb_clean {
 814         my $NSB = '\x88' ;              # NSB : begin Non Sorting Block
 815         my $NSE = '\x89' ;              # NSE : Non Sorting Block end
 816         # handles non sorting blocks
 817         my ($string) = @_ ;
 818         $_ = $string ;
 819         s/$NSB/(/gm ;
 820         s/[ ]{0,1}$NSE/) /gm ;
 821         $string = $_ ;
 822         return($string) ;
 823 }
 824
 825 END { }       # module clean-up code here (global destructor)
 826
 827 =back
 828
 829 =head1 AUTHOR
 830
 831 Koha Developement team <info@koha.org>
 832
 833 Paul POULAIN paul.poulain@free.fr
 834
 835 =cut
 836
 837 # $Id$
 838 # $Log$
 839 # Revision 1.7  2004/09/23 16:13:00  tipaul
 840 # Bugfix in modification
 841 #
 842 # Revision 1.6  2004/08/18 16:00:24  tipaul
 843 # fixes for authorities management
 844 #
 845 # Revision 1.5  2004/07/05 13:37:22  doxulting
 846 # First step for working authorities
 847 #
 848 # Revision 1.4  2004/06/22 11:35:37  tipaul
 849 # removing % at the beginning of a string to avoid loooonnnngggg searchs
 850 #
 851 # Revision 1.3  2004/06/17 08:02:13  tipaul
 852 # merging tag & subfield in auth_word for better perfs
 853 #
 854 # Revision 1.2  2004/06/10 08:29:01  tipaul
 855 # MARC authority management (continued)
 856 #
 857 # Revision 1.1  2004/06/07 07:35:01  tipaul
 858 # MARC authority management package
 859 #