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 $VERSION = 0.01;
  31
  32 @ISA = qw(Exporter);
  33 @EXPORT = qw(
  34         &AUTHgettagslib
  35         &AUTHfindsubfield
  36         &AUTHfind_authtypecode
  37
  38         &AUTHaddauthority
  39         &AUTHmodauthority
  40         &AUTHdelauthority
  41         &AUTHaddsubfield
  42         &AUTHgetauthority
  43
  44         &AUTHgetauth_type
  45         &AUTHcount_usage
  46
  47         &authoritysearch
  48
  49         &MARCmodsubfield
  50         &AUTHhtml2marc
  51         &AUTHaddword
  52         &MARCaddword &MARCdelword
  53         &char_decode
  54  );
  55
  56 sub authoritysearch {
  57         my ($dbh, $tags, $and_or, $excluding, $operator, $value, $offset,$length,$authtypecode) = @_;
  58         # build the sql request. She will look like :
  59         # select m1.bibid
  60         #               from auth_subfield_table as m1, auth_subfield_table as m2
  61         #               where m1.authid=m2.authid and
  62         #               (m1.subfieldvalue like "Des%" and m2.subfieldvalue like "27%")
  63
  64         # "Normal" statements
  65         my @normal_tags = ();
  66         my @normal_and_or = ();
  67         my @normal_operator = ();
  68         my @normal_value = ();
  69         # Extracts the NOT statements from the list of statements
  70         for(my $i = 0 ; $i <= $#{$value} ; $i++)
  71         {
  72                 if(@$operator[$i] eq "contains") # if operator is contains, splits the words in separate requests
  73                 {
  74                         foreach my $word (split(/ /, @$value[$i]))
  75                         {
  76                                 unless (C4::Context->stopwords->{uc($word)}) {  #it's NOT a stopword => use it. Otherwise, ignore
  77                                         my $tag = substr(@$tags[$i],0,3);
  78                                         my $subf = substr(@$tags[$i],3,1);
  79                                         push @normal_tags, @$tags[$i];
  80                                         push @normal_and_or, "and";     # assumes "foo" and "bar" if "foo bar" is entered
  81                                         push @normal_operator, @$operator[$i];
  82                                         push @normal_value, $word;
  83                                 }
  84                         }
  85                 }
  86                 else
  87                 {
  88                         push @normal_tags, @$tags[$i];
  89                         push @normal_and_or, @$and_or[$i];
  90                         push @normal_operator, @$operator[$i];
  91                         push @normal_value, @$value[$i];
  92                 }
  93         }
  94
  95         # Finds the basic results without the NOT requests
  96         my ($sql_tables, $sql_where1, $sql_where2) = create_request($dbh,\@normal_tags, \@normal_and_or, \@normal_operator, \@normal_value);
  97
  98         my $sth;
  99
 100         if ($sql_where2) {
 101                 $sth = $dbh->prepare("select distinct m1.authid from auth_header,$sql_tables where  m1.authid=auth_header.authid and auth_header.authtypecode=? and $sql_where2 and ($sql_where1)");
 102                 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)";
 103         } else {
 104                 $sth = $dbh->prepare("select distinct m1.authid from auth_header,$sql_tables where  m1.authid=auth_header.authid and auth_header.authtypecode=? and $sql_where1");
 105                 warn "Q : select distinct m1.authid from auth_header,$sql_tables where  m1.authid=auth_header.authid and auth_header.authtypecode=? and $sql_where1";
 106         }
 107         $sth->execute($authtypecode);
 108         my @result = ();
 109         while (my ($authid) = $sth->fetchrow) {
 110                         push @result,$authid;
 111                 }
 112
 113         # we have authid list. Now, loads summary from [offset] to [offset]+[length]
 114         my $counter = $offset;
 115         my @finalresult = ();
 116         my $oldline;
 117         while (($counter <= $#result) && ($counter <= ($offset + $length))) {
 118 #               warn " HERE : $counter, $#result, $offset, $length";
 119                 # get MARC::Record of the authority
 120                 my $record = AUTHgetauthority($dbh,$result[$counter]);
 121                 # then build the summary
 122                 my $authtypecode = AUTHfind_authtypecode($dbh,$result[$counter]);
 123                 my $authref = getauthtype($authtypecode);
 124                 my $summary = $authref->{summary};
 125                 my @fields = $record->fields();
 126                 foreach my $field (@fields) {
 127                         my $tag = $field->tag();
 128                         if ($tag<10) {
 129                         } else {
 130                                 my @subf = $field->subfields;
 131                                 for my $i (0..$#subf) {
 132                                         my $subfieldcode = $subf[$i][0];
 133                                         my $subfieldvalue = $subf[$i][1];
 134                                         my $tagsubf = $tag.$subfieldcode;
 135                                         $summary =~ s/\[(.?.?.?)$tagsubf(.*?)]/$1$subfieldvalue\[$1$tagsubf$2]$2$3/g;
 136                                 }
 137                         }
 138                 }
 139                 $summary =~ s/\[(.*?)]//g;
 140                 $summary =~ s/\n/<br>/g;
 141
 142                 # find biblio MARC field using this authtypecode (to jump to biblio)
 143                 my $authtypecode = AUTHfind_authtypecode($dbh,$result[$counter]);
 144                 my $sth = $dbh->prepare("select distinct tagfield from marc_subfield_structure where authtypecode=?");
 145                 $sth->execute($authtypecode);
 146                 my $tags_using_authtype;
 147                 while (my ($tagfield) = $sth->fetchrow) {
 148 #                       warn "TAG : $tagfield";
 149                         $tags_using_authtype.= $tagfield."9,";
 150                 }
 151                 chop $tags_using_authtype;
 152
 153                 # then add a line for the template loop
 154                 my %newline;
 155                 $newline{summary} = $summary;
 156                 $newline{authid} = $result[$counter];
 157                 $newline{used} = &AUTHcount_usage($result[$counter]);
 158                 $newline{biblio_fields} = $tags_using_authtype;
 159                 $counter++;
 160                 push @finalresult, \%newline;
 161         }
 162         my $nbresults = $#result + 1;
 163         return (\@finalresult, $nbresults);
 164 }
 165
 166 # Creates the SQL Request
 167
 168 sub create_request {
 169         my ($dbh,$tags, $and_or, $operator, $value) = @_;
 170
 171         my $sql_tables; # will contain marc_subfield_table as m1,...
 172         my $sql_where1; # will contain the "true" where
 173         my $sql_where2 = "("; # will contain m1.authid=m2.authid
 174         my $nb_active=0; # will contain the number of "active" entries. and entry is active is a value is provided.
 175         my $nb_table=1; # will contain the number of table. ++ on each entry EXCEPT when an OR  is provided.
 176
 177
 178         for(my $i=0; $i<=@$value;$i++) {
 179                 if (@$value[$i]) {
 180                         $nb_active++;
 181                         if ($nb_active==1) {
 182                                 if (@$operator[$i] eq "start") {
 183                                         $sql_tables .= "auth_subfield_table as m$nb_table,";
 184                                         $sql_where1 .= "(m1.subfieldvalue like ".$dbh->quote("@$value[$i]%");
 185                                         if (@$tags[$i]) {
 186                                                 $sql_where1 .=" and m1.tag+m1.subfieldcode in (@$tags[$i])";
 187                                         }
 188                                         $sql_where1.=")";
 189                                 } elsif (@$operator[$i] eq "contains") {
 190                                 $sql_tables .= "auth_word as m$nb_table,";
 191                                         $sql_where1 .= "(m1.word  like ".$dbh->quote("@$value[$i]%");
 192                                         if (@$tags[$i]) {
 193                                                  $sql_where1 .=" and m1.tagsubfield in (@$tags[$i])";
 194                                         }
 195                                         $sql_where1.=")";
 196                                 } else {
 197
 198                                         $sql_tables .= "auth_subfield_table as m$nb_table,";
 199                                         $sql_where1 .= "(m1.subfieldvalue @$operator[$i] ".$dbh->quote("@$value[$i]");
 200                                         if (@$tags[$i]) {
 201                                                  $sql_where1 .=" and m1.tag+m1.subfieldcode in (@$tags[$i])";
 202                                         }
 203                                         $sql_where1.=")";
 204                                 }
 205                         } else {
 206                                 if (@$operator[$i] eq "start") {
 207                                         $nb_table++;
 208                                         $sql_tables .= "auth_subfield_table as m$nb_table,";
 209                                         $sql_where1 .= "@$and_or[$i] (m$nb_table.subfieldvalue like ".$dbh->quote("@$value[$i]%");
 210                                         if (@$tags[$i]) {
 211                                                 $sql_where1 .=" and m$nb_table.tag+m$nb_table.subfieldcode in (@$tags[$i])";
 212                                         }
 213                                         $sql_where1.=")";
 214                                         $sql_where2 .= "m1.authid=m$nb_table.authid and ";
 215                                 } elsif (@$operator[$i] eq "contains") {
 216                                         if (@$and_or[$i] eq 'and') {
 217                                                 $nb_table++;
 218                                                 $sql_tables .= "auth_word as m$nb_table,";
 219                                                 $sql_where1 .= "@$and_or[$i] (m$nb_table.word like ".$dbh->quote("@$value[$i]%");
 220                                                 if (@$tags[$i]) {
 221                                                         $sql_where1 .=" and m$nb_table.tagsubfield in(@$tags[$i])";
 222                                                 }
 223                                                 $sql_where1.=")";
 224                                                 $sql_where2 .= "m1.authid=m$nb_table.authid and ";
 225                                         } else {
 226                                                 $sql_where1 .= "@$and_or[$i] (m$nb_table.word like ".$dbh->quote("@$value[$i]%");
 227                                                 if (@$tags[$i]) {
 228                                                         $sql_where1 .="  and m$nb_table.tag+m$nb_table.subfieldid in (@$tags[$i])";
 229                                                 }
 230                                                 $sql_where1.=")";
 231                                                 $sql_where2 .= "m1.authid=m$nb_table.authid and ";
 232                                         }
 233                                 } else {
 234                                         $nb_table++;
 235                                         $sql_tables .= "auth_subfield_table as m$nb_table,";
 236                                         $sql_where1 .= "@$and_or[$i] (m$nb_table.subfieldvalue @$operator[$i] ".$dbh->quote(@$value[$i]);
 237                                         if (@$tags[$i]) {
 238                                                 $sql_where1 .="  and m$nb_table.tag+m$nb_table.subfieldcode in (@$tags[$i])";
 239                                         }
 240                                         $sql_where2 .= "m1.authid=m$nb_table.authid and ";
 241                                         $sql_where1.=")";
 242                                 }
 243                         }
 244                 }
 245         }
 246
 247         if($sql_where2 ne "(")  # some datas added to sql_where2, processing
 248         {
 249                 $sql_where2 = substr($sql_where2, 0, (length($sql_where2)-5)); # deletes the trailing ' and '
 250                 $sql_where2 .= ")";
 251         }
 252         else    # no sql_where2 statement, deleting '('
 253         {
 254                 $sql_where2 = "";
 255         }
 256         chop $sql_tables;       # deletes the trailing ','
 257
 258         return ($sql_tables, $sql_where1, $sql_where2);
 259 }
 260
 261
 262 sub AUTHcount_usage {
 263         my ($authid) = @_;
 264         my $dbh = C4::Context->dbh;
 265         # find MARC fields using this authtype
 266         my $authtypecode = AUTHfind_authtypecode($dbh,$authid);
 267         my $sth = $dbh->prepare("select distinct tagfield from marc_subfield_structure where authtypecode=?");
 268         $sth->execute($authtypecode);
 269         my $tags_using_authtype;
 270         while (my ($tagfield) = $sth->fetchrow) {
 271 #               warn "TAG : $tagfield";
 272                 $tags_using_authtype.= "'".$tagfield."9',";
 273         }
 274         chop $tags_using_authtype;
 275         if ($tags_using_authtype) {
 276                 $sth = $dbh->prepare("select count(*) from marc_subfield_table where concat(tag,subfieldcode) in ($tags_using_authtype) and subfieldvalue=?");
 277         } else {
 278                 $sth = $dbh->prepare("select count(*) from marc_subfield_table where subfieldvalue=?");
 279         }
 280 #       warn "Q : select count(*) from marc_subfield_table where concat(tag,subfieldcode) in ($tags_using_authtype) and subfieldvalue=$authid";
 281         $sth->execute($authid);
 282         my ($result) = $sth->fetchrow;
 283 #       warn "Authority $authid TOTAL USED : $result";
 284         return $result;
 285 }
 286
 287 # merging 2 authority entries. After a merge, the "from" can be deleted.
 288 # sub AUTHmerge {
 289 #       my ($auth_merge_from,$auth_merge_to) = @_;
 290 #       my $dbh = C4::Context->dbh;
 291 #       # find MARC fields using this authtype
 292 #       my $authtypecode = AUTHfind_authtypecode($dbh,$authid);
 293 #       # retrieve records
 294 #       my $record_from = AUTHgetauthority($dbh,$auth_merge_from);
 295 #       my $record_to = AUTHgetauthority($dbh,$auth_merge_to);
 296 #       my $sth = $dbh->prepare("select distinct tagfield from marc_subfield_structure where authtypecode=?");
 297 #       $sth->execute($authtypecode);
 298 #       my $tags_using_authtype;
 299 #       while (my ($tagfield) = $sth->fetchrow) {
 300 #               warn "TAG : $tagfield";
 301 #               $tags_using_authtype.= "'".$tagfield."9',";
 302 #       }
 303 #       chop $tags_using_authtype;
 304 #       # now, find every biblio using this authority
 305 #       $sth = $dbh->prepare("select bibid,tag,tag_indicator,tagorder from marc_subfield_table where tag+subfieldid in ($tags_using_authtype) and subfieldvalue=?");
 306 #       $sth->execute($authid);
 307 #       # and delete entries before recreating them
 308 #       while (my ($bibid,$tag,$tag_indicator,$tagorder) = $sth->fetchrow) {
 309 #               &MARCdelsubfield($dbh,$bibid,$tag);
 310 #
 311 #       }
 312 #
 313 # }
 314
 315 sub AUTHfind_authtypecode {
 316         my ($dbh,$authid) = @_;
 317         my $sth = $dbh->prepare("select authtypecode from auth_header where authid=?");
 318         $sth->execute($authid);
 319         my ($authtypecode) = $sth->fetchrow;
 320         return $authtypecode;
 321 }
 322
 323
 324 sub AUTHgettagslib {
 325         my ($dbh,$forlibrarian,$authtypecode)= @_;
 326         $authtypecode="" unless $authtypecode;
 327         my $sth;
 328         my $libfield = ($forlibrarian eq 1)? 'liblibrarian' : 'libopac';
 329         # check that framework exists
 330         $sth=$dbh->prepare("select count(*) from auth_tag_structure where authtypecode=?");
 331         $sth->execute($authtypecode);
 332         my ($total) = $sth->fetchrow;
 333         $authtypecode="" unless ($total >0);
 334         $sth=$dbh->prepare("select tagfield,$libfield as lib,mandatory,repeatable from auth_tag_structure where authtypecode=? order by tagfield");
 335         $sth->execute($authtypecode);
 336         my ($lib,$tag,$res,$tab,$mandatory,$repeatable);
 337         while ( ($tag,$lib,$mandatory,$repeatable) = $sth->fetchrow) {
 338                 $res->{$tag}->{lib}=$lib;
 339                 $res->{$tab}->{tab}=""; # XXX
 340                 $res->{$tag}->{mandatory}=$mandatory;
 341                 $res->{$tag}->{repeatable}=$repeatable;
 342         }
 343
 344         $sth=$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");
 345         $sth->execute($authtypecode);
 346
 347         my $subfield;
 348         my $authorised_value;
 349         my $thesaurus_category;
 350         my $value_builder;
 351         my $kohafield;
 352         my $seealso;
 353         my $hidden;
 354         my $isurl;
 355         while ( ($tag, $subfield, $lib, $tab, $mandatory, $repeatable,$authorised_value,$value_builder,$seealso) = $sth->fetchrow) {
 356                 $res->{$tag}->{$subfield}->{lib}=$lib;
 357                 $res->{$tag}->{$subfield}->{tab}=$tab;
 358                 $res->{$tag}->{$subfield}->{mandatory}=$mandatory;
 359                 $res->{$tag}->{$subfield}->{repeatable}=$repeatable;
 360                 $res->{$tag}->{$subfield}->{authorised_value}=$authorised_value;
 361                 $res->{$tag}->{$subfield}->{thesaurus_category}=$thesaurus_category;
 362                 $res->{$tag}->{$subfield}->{value_builder}=$value_builder;
 363                 $res->{$tag}->{$subfield}->{seealso}=$seealso;
 364                 $res->{$tag}->{$subfield}->{hidden}=$hidden;
 365                 $res->{$tag}->{$subfield}->{isurl}=$isurl;
 366         }
 367         return $res;
 368 }
 369
 370 sub AUTHaddauthority {
 371 # pass the MARC::Record to this function, and it will create the records in the marc tables
 372         my ($dbh,$record,$authid,$authtypecode) = @_;
 373         my @fields=$record->fields();
 374 #       warn "IN AUTHaddauthority $authid => ".$record->as_formatted;
 375 # adding main table, and retrieving authid
 376 # if authid is sent, then it's not a true add, it's only a re-add, after a delete (ie, a mod)
 377 # if authid empty => true add, find a new authid number
 378         unless ($authid) {
 379                 $dbh->do("lock tables auth_header WRITE,auth_subfield_table WRITE, auth_word WRITE, stopwords READ");
 380                 my $sth=$dbh->prepare("insert into auth_header (datecreated,authtypecode) values (now(),?)");
 381                 $sth->execute($authtypecode);
 382                 $sth=$dbh->prepare("select max(authid) from auth_header");
 383                 $sth->execute;
 384                 ($authid)=$sth->fetchrow;
 385                 $sth->finish;
 386         }
 387         my $fieldcount=0;
 388         # now, add subfields...
 389         foreach my $field (@fields) {
 390                 $fieldcount++;
 391                 if ($field->tag() <10) {
 392                                 &AUTHaddsubfield($dbh,$authid,
 393                                                 $field->tag(),
 394                                                 '',
 395                                                 $fieldcount,
 396                                                 '',
 397                                                 1,
 398                                                 $field->data()
 399                                                 );
 400                 } else {
 401                         my @subfields=$field->subfields();
 402                         foreach my $subfieldcount (0..$#subfields) {
 403                                 &AUTHaddsubfield($dbh,$authid,
 404                                                 $field->tag(),
 405                                                 $field->indicator(1).$field->indicator(2),
 406                                                 $fieldcount,
 407                                                 $subfields[$subfieldcount][0],
 408                                                 $subfieldcount+1,
 409                                                 $subfields[$subfieldcount][1]
 410                                                 );
 411                         }
 412                 }
 413         }
 414         $dbh->do("unlock tables");
 415         return $authid;
 416 }
 417
 418
 419 sub AUTHaddsubfield {
 420 # Add a new subfield to a tag into the DB.
 421         my ($dbh,$authid,$tagid,$tag_indicator,$tagorder,$subfieldcode,$subfieldorder,$subfieldvalues) = @_;
 422         # if not value, end of job, we do nothing
 423         if (length($subfieldvalues) ==0) {
 424                 return;
 425         }
 426         if (not($subfieldcode)) {
 427                 $subfieldcode=' ';
 428         }
 429         my @subfieldvalues = split /\|/,$subfieldvalues;
 430         foreach my $subfieldvalue (@subfieldvalues) {
 431                 my $sth=$dbh->prepare("insert into auth_subfield_table (authid,tag,tagorder,tag_indicator,subfieldcode,subfieldorder,subfieldvalue) values (?,?,?,?,?,?,?)");
 432                 $sth->execute($authid,(sprintf "%03s",$tagid),$tagorder,$tag_indicator,$subfieldcode,$subfieldorder,$subfieldvalue);
 433                 if ($sth->errstr) {
 434                         warn "ERROR ==> insert into auth_subfield_table (authid,tag,tagorder,tag_indicator,subfieldcode,subfieldorder,subfieldvalue) values ($authid,$tagid,$tagorder,$tag_indicator,$subfieldcode,$subfieldorder,$subfieldvalue)\n";
 435                 }
 436                 &AUTHaddword($dbh,$authid,$tagid,$tagorder,$subfieldcode,$subfieldorder,$subfieldvalue);
 437         }
 438 }
 439
 440 sub AUTHgetauthority {
 441 # Returns MARC::Record of the biblio passed in parameter.
 442     my ($dbh,$authid)=@_;
 443     my $record = MARC::Record->new();
 444 #---- TODO : the leader is missing
 445         $record->leader('                        ');
 446     my $sth=$dbh->prepare("select authid,subfieldid,tag,tagorder,tag_indicator,subfieldcode,subfieldorder,subfieldvalue
 447                                  from auth_subfield_table
 448                                  where authid=? order by tag,tagorder,subfieldcode
 449                          ");
 450         $sth->execute($authid);
 451         my $prevtagorder=1;
 452         my $prevtag='XXX';
 453         my $previndicator;
 454         my $field; # for >=10 tags
 455         my $prevvalue; # for <10 tags
 456         while (my $row=$sth->fetchrow_hashref) {
 457                 if ($row->{tagorder} ne $prevtagorder || $row->{tag} ne $prevtag) {
 458                         $previndicator.="  ";
 459                         if ($prevtag <10) {
 460                         $record->add_fields((sprintf "%03s",$prevtag),$prevvalue) unless $prevtag eq "XXX"; # ignore the 1st loop
 461                         } else {
 462                                 $record->add_fields($field) unless $prevtag eq "XXX";
 463                         }
 464                         undef $field;
 465                         $prevtagorder=$row->{tagorder};
 466                         $prevtag = $row->{tag};
 467                         $previndicator=$row->{tag_indicator};
 468                         if ($row->{tag}<10) {
 469                                 $prevvalue = $row->{subfieldvalue};
 470                         } else {
 471                                 $field = MARC::Field->new((sprintf "%03s",$prevtag), substr($row->{tag_indicator}.'  ',0,1), substr($row->{tag_indicator}.'  ',1,1), $row->{'subfieldcode'}, $row->{'subfieldvalue'} );
 472                         }
 473                 } else {
 474                         if ($row->{tag} <10) {
 475                                 $record->add_fields((sprintf "%03s",$row->{tag}), $row->{'subfieldvalue'});
 476                         } else {
 477                                 $field->add_subfields($row->{'subfieldcode'}, $row->{'subfieldvalue'} );
 478                         }
 479                         $prevtag= $row->{tag};
 480                         $previndicator=$row->{tag_indicator};
 481                 }
 482         }
 483         # the last has not been included inside the loop... do it now !
 484         if ($prevtag ne "XXX") { # check that we have found something. Otherwise, prevtag is still XXX and we
 485                                                 # must return an empty record, not make MARC::Record fail because we try to
 486                                                 # create a record with XXX as field :-(
 487                 if ($prevtag <10) {
 488                         $record->add_fields($prevtag,$prevvalue);
 489                 } else {
 490         #               my $field = MARC::Field->new( $prevtag, "", "", %subfieldlist);
 491                         $record->add_fields($field);
 492                 }
 493         }
 494         return $record;
 495 }
 496
 497 sub AUTHgetauth_type {
 498         my ($authtypecode) = @_;
 499         my $dbh=C4::Context->dbh;
 500         my $sth=$dbh->prepare("select * from auth_types where authtypecode=?");
 501         $sth->execute($authtypecode);
 502         return $sth->fetchrow_hashref;
 503 }
 504 sub AUTHmodauthority {
 505         my ($dbh,$authid,$record,$delete)=@_;
 506         my $oldrecord=&AUTHgetauthority($dbh,$authid);
 507         if ($oldrecord eq $record) {
 508                 return;
 509         }
 510 # 1st delete the authority,
 511 # 2nd recreate it
 512         &AUTHdelauthority($dbh,$authid,1);
 513         &AUTHaddauthority($dbh,$record,$authid,AUTHfind_authtypecode($dbh,$authid));
 514         # FIXME : modify the authority in biblio too.
 515 }
 516
 517 sub AUTHdelauthority {
 518         my ($dbh,$authid,$keep_biblio) = @_;
 519 # if the keep_biblio is set to 1, then authority entries in biblio are preserved.
 520 # This flag is set when the delauthority is called by modauthority
 521 # due to a too complex structure of MARC (repeatable fields and subfields),
 522 # the best solution for a modif is to delete / recreate the record.
 523
 524         my $record = AUTHgetauthority($dbh,$authid);
 525         $dbh->do("delete from auth_header where authid=$authid") unless $keep_biblio;
 526         $dbh->do("delete from auth_subfield_table where authid=$authid");
 527         $dbh->do("delete from auth_word where authid=$authid");
 528 # FIXME : delete or not in biblio tables (depending on $keep_biblio flag)
 529 }
 530
 531 sub AUTHmodsubfield {
 532 # Subroutine changes a subfield value given a subfieldid.
 533         my ($dbh, $subfieldid, $subfieldvalue )=@_;
 534         $dbh->do("lock tables auth_subfield_table WRITE");
 535         my $sth=$dbh->prepare("update auth_subfield_table set subfieldvalue=? where subfieldid=?");
 536         $sth->execute($subfieldvalue, $subfieldid);
 537         $dbh->do("unlock tables");
 538         $sth->finish;
 539         $sth=$dbh->prepare("select authid,tag,tagorder,subfieldcode,subfieldid,subfieldorder from auth_subfield_table where subfieldid=?");
 540         $sth->execute($subfieldid);
 541         my ($authid,$tagid,$tagorder,$subfieldcode,$x,$subfieldorder) = $sth->fetchrow;
 542         $subfieldid=$x;
 543         &AUTHdelword($dbh,$authid,$tagid,$tagorder,$subfieldcode,$subfieldorder);
 544         &AUTHaddword($dbh,$authid,$tagid,$tagorder,$subfieldcode,$subfieldorder,$subfieldvalue);
 545         return($subfieldid, $subfieldvalue);
 546 }
 547
 548 sub AUTHfindsubfield {
 549     my ($dbh,$authid,$tag,$subfieldcode,$subfieldorder,$subfieldvalue) = @_;
 550     my $resultcounter=0;
 551     my $subfieldid;
 552     my $lastsubfieldid;
 553     my $query="select subfieldid from auth_subfield_table where authid=? and tag=? and subfieldcode=?";
 554     my @bind_values = ($authid,$tag, $subfieldcode);
 555     if ($subfieldvalue) {
 556         $query .= " and subfieldvalue=?";
 557         push(@bind_values,$subfieldvalue);
 558     } else {
 559         if ($subfieldorder<1) {
 560             $subfieldorder=1;
 561         }
 562         $query .= " and subfieldorder=?";
 563         push(@bind_values,$subfieldorder);
 564     }
 565     my $sti=$dbh->prepare($query);
 566     $sti->execute(@bind_values);
 567     while (($subfieldid) = $sti->fetchrow) {
 568         $resultcounter++;
 569         $lastsubfieldid=$subfieldid;
 570     }
 571     if ($resultcounter>1) {
 572                 # Error condition.  Values given did not resolve into a unique record.  Don't know what to edit
 573                 # should rarely occur (only if we use subfieldvalue with a value that exists twice, which is strange)
 574                 return -1;
 575     } else {
 576                 return $lastsubfieldid;
 577     }
 578 }
 579
 580 sub AUTHfindsubfieldid {
 581         my ($dbh,$authid,$tag,$tagorder,$subfield,$subfieldorder) = @_;
 582         my $sth=$dbh->prepare("select subfieldid from auth_subfield_table
 583                                 where authid=? and tag=? and tagorder=?
 584                                         and subfieldcode=? and subfieldorder=?");
 585         $sth->execute($authid,$tag,$tagorder,$subfield,$subfieldorder);
 586         my ($res) = $sth->fetchrow;
 587         unless ($res) {
 588                 $sth=$dbh->prepare("select subfieldid from auth_subfield_table
 589                                 where authid=? and tag=? and tagorder=?
 590                                         and subfieldcode=?");
 591                 $sth->execute($authid,$tag,$tagorder,$subfield);
 592                 ($res) = $sth->fetchrow;
 593         }
 594     return $res;
 595 }
 596
 597 sub AUTHfind_authtypecode {
 598         my ($dbh,$authid) = @_;
 599         my $sth = $dbh->prepare("select authtypecode from auth_header where authid=?");
 600         $sth->execute($authid);
 601         my ($authtypecode) = $sth->fetchrow;
 602         return $authtypecode;
 603 }
 604
 605 sub AUTHdelsubfield {
 606 # delete a subfield for $authid / tag / tagorder / subfield / subfieldorder
 607     my ($dbh,$authid,$tag,$tagorder,$subfield,$subfieldorder) = @_;
 608     $dbh->do("delete from auth_subfield_table where authid='$authid' and
 609                         tag='$tag' and tagorder='$tagorder'
 610                         and subfieldcode='$subfield' and subfieldorder='$subfieldorder'
 611                         ");
 612 }
 613
 614 sub AUTHhtml2marc {
 615         my ($dbh,$rtags,$rsubfields,$rvalues,%indicators) = @_;
 616         my $prevtag = -1;
 617         my $record = MARC::Record->new();
 618 #       my %subfieldlist=();
 619         my $prevvalue; # if tag <10
 620         my $field; # if tag >=10
 621         for (my $i=0; $i< @$rtags; $i++) {
 622                 # rebuild MARC::Record
 623                 if (@$rtags[$i] ne $prevtag) {
 624                         if ($prevtag < 10) {
 625                                 if ($prevvalue) {
 626                                         $record->add_fields((sprintf "%03s",$prevtag),$prevvalue);
 627                                 }
 628                         } else {
 629                                 if ($field) {
 630                                         $record->add_fields($field);
 631                                 }
 632                         }
 633                         $indicators{@$rtags[$i]}.='  ';
 634                         if (@$rtags[$i] <10) {
 635                                 $prevvalue= @$rvalues[$i];
 636                         } else {
 637                                 $field = MARC::Field->new( (sprintf "%03s",@$rtags[$i]), substr($indicators{@$rtags[$i]},0,1),substr($indicators{@$rtags[$i]},1,1), @$rsubfields[$i] => @$rvalues[$i]);
 638                         }
 639                         $prevtag = @$rtags[$i];
 640                 } else {
 641                         if (@$rtags[$i] <10) {
 642                                 $prevvalue=@$rvalues[$i];
 643                         } else {
 644                                 if (@$rvalues[$i]) {
 645                                         $field->add_subfields(@$rsubfields[$i] => @$rvalues[$i]);
 646                                 }
 647                         }
 648                         $prevtag= @$rtags[$i];
 649                 }
 650         }
 651         # the last has not been included inside the loop... do it now !
 652         $record->add_fields($field);
 653 #       warn $record->as_formatted;
 654         return $record;
 655 }
 656
 657 sub AUTHaddword {
 658 # split a subfield string and adds it into the word table.
 659 # removes stopwords
 660     my ($dbh,$authid,$tag,$tagorder,$subfieldid,$subfieldorder,$sentence) =@_;
 661     $sentence =~ s/(\.|\?|\:|\!|\'|,|\-|\"|\(|\)|\[|\]|\{|\})/ /g;
 662     my @words = split / /,$sentence;
 663     my $stopwords= C4::Context->stopwords;
 664     my $sth=$dbh->prepare("insert into auth_word (authid, tagsubfield, tagorder, subfieldorder, word, sndx_word)
 665                         values (?,concat(?,?),?,?,?,soundex(?))");
 666     foreach my $word (@words) {
 667 # we record only words longer than 2 car and not in stopwords hash
 668         if (length($word)>2 and !($stopwords->{uc($word)})) {
 669             $sth->execute($authid,$tag,$subfieldid,$tagorder,$subfieldorder,$word,$word);
 670             if ($sth->err()) {
 671                 warn "ERROR ==> insert into auth_word (authid, tagsubfield, tagorder, subfieldorder, word, sndx_word) values ($authid,concat($tag,$subfieldid),$tagorder,$subfieldorder,$word,soundex($word))\n";
 672             }
 673         }
 674     }
 675 }
 676
 677 sub AUTHdelword {
 678 # delete words. this sub deletes all the words from a sentence. a subfield modif is done by a delete then a add
 679     my ($dbh,$authid,$tag,$tagorder,$subfield,$subfieldorder) = @_;
 680     my $sth=$dbh->prepare("delete from auth_word where authid=? and tagsubfield=concat(?,?) and tagorder=? and subfieldorder=?");
 681     $sth->execute($authid,$tag,$subfield,$tagorder,$subfieldorder);
 682 }
 683
 684 sub char_decode {
 685         # converts ISO 5426 coded string to ISO 8859-1
 686         # sloppy code : should be improved in next issue
 687         my ($string,$encoding) = @_ ;
 688         $_ = $string ;
 689 #       $encoding = C4::Context->preference("marcflavour") unless $encoding;
 690         if ($encoding eq "UNIMARC") {
 691                 s/\xe1/Æ/gm ;
 692                 s/\xe2/Ð/gm ;
 693                 s/\xe9/Ø/gm ;
 694                 s/\xec/þ/gm ;
 695                 s/\xf1/æ/gm ;
 696                 s/\xf3/ð/gm ;
 697                 s/\xf9/ø/gm ;
 698                 s/\xfb/ß/gm ;
 699                 s/\xc1\x61/à/gm ;
 700                 s/\xc1\x65/è/gm ;
 701                 s/\xc1\x69/ì/gm ;
 702                 s/\xc1\x6f/ò/gm ;
 703                 s/\xc1\x75/ù/gm ;
 704                 s/\xc1\x41/À/gm ;
 705                 s/\xc1\x45/È/gm ;
 706                 s/\xc1\x49/Ì/gm ;
 707                 s/\xc1\x4f/Ò/gm ;
 708                 s/\xc1\x55/Ù/gm ;
 709                 s/\xc2\x41/Á/gm ;
 710                 s/\xc2\x45/É/gm ;
 711                 s/\xc2\x49/Í/gm ;
 712                 s/\xc2\x4f/Ó/gm ;
 713                 s/\xc2\x55/Ú/gm ;
 714                 s/\xc2\x59/Ý/gm ;
 715                 s/\xc2\x61/á/gm ;
 716                 s/\xc2\x65/é/gm ;
 717                 s/\xc2\x69/í/gm ;
 718                 s/\xc2\x6f/ó/gm ;
 719                 s/\xc2\x75/ú/gm ;
 720                 s/\xc2\x79/ý/gm ;
 721                 s/\xc3\x41/Â/gm ;
 722                 s/\xc3\x45/Ê/gm ;
 723                 s/\xc3\x49/Î/gm ;
 724                 s/\xc3\x4f/Ô/gm ;
 725                 s/\xc3\x55/Û/gm ;
 726                 s/\xc3\x61/â/gm ;
 727                 s/\xc3\x65/ê/gm ;
 728                 s/\xc3\x69/î/gm ;
 729                 s/\xc3\x6f/ô/gm ;
 730                 s/\xc3\x75/û/gm ;
 731                 s/\xc4\x41/Ã/gm ;
 732                 s/\xc4\x4e/Ñ/gm ;
 733                 s/\xc4\x4f/Õ/gm ;
 734                 s/\xc4\x61/ã/gm ;
 735                 s/\xc4\x6e/ñ/gm ;
 736                 s/\xc4\x6f/õ/gm ;
 737                 s/\xc8\x45/Ë/gm ;
 738                 s/\xc8\x49/Ï/gm ;
 739                 s/\xc8\x65/ë/gm ;
 740                 s/\xc8\x69/ï/gm ;
 741                 s/\xc8\x76/ÿ/gm ;
 742                 s/\xc9\x41/Ä/gm ;
 743                 s/\xc9\x4f/Ö/gm ;
 744                 s/\xc9\x55/Ü/gm ;
 745                 s/\xc9\x61/ä/gm ;
 746                 s/\xc9\x6f/ö/gm ;
 747                 s/\xc9\x75/ü/gm ;
 748                 s/\xca\x41/Å/gm ;
 749                 s/\xca\x61/å/gm ;
 750                 s/\xd0\x43/Ç/gm ;
 751                 s/\xd0\x63/ç/gm ;
 752                 # this handles non-sorting blocks (if implementation requires this)
 753                 $string = nsb_clean($_) ;
 754         } elsif ($encoding eq "USMARC" || $encoding eq "MARC21") {
 755                 if(/[\xc1-\xff]/) {
 756                         s/\xe1\x61/à/gm ;
 757                         s/\xe1\x65/è/gm ;
 758                         s/\xe1\x69/ì/gm ;
 759                         s/\xe1\x6f/ò/gm ;
 760                         s/\xe1\x75/ù/gm ;
 761                         s/\xe1\x41/À/gm ;
 762                         s/\xe1\x45/È/gm ;
 763                         s/\xe1\x49/Ì/gm ;
 764                         s/\xe1\x4f/Ò/gm ;
 765                         s/\xe1\x55/Ù/gm ;
 766                         s/\xe2\x41/Á/gm ;
 767                         s/\xe2\x45/É/gm ;
 768                         s/\xe2\x49/Í/gm ;
 769                         s/\xe2\x4f/Ó/gm ;
 770                         s/\xe2\x55/Ú/gm ;
 771                         s/\xe2\x59/Ý/gm ;
 772                         s/\xe2\x61/á/gm ;
 773                         s/\xe2\x65/é/gm ;
 774                         s/\xe2\x69/í/gm ;
 775                         s/\xe2\x6f/ó/gm ;
 776                         s/\xe2\x75/ú/gm ;
 777                         s/\xe2\x79/ý/gm ;
 778                         s/\xe3\x41/Â/gm ;
 779                         s/\xe3\x45/Ê/gm ;
 780                         s/\xe3\x49/Î/gm ;
 781                         s/\xe3\x4f/Ô/gm ;
 782                         s/\xe3\x55/Û/gm ;
 783                         s/\xe3\x61/â/gm ;
 784                         s/\xe3\x65/ê/gm ;
 785                         s/\xe3\x69/î/gm ;
 786                         s/\xe3\x6f/ô/gm ;
 787                         s/\xe3\x75/û/gm ;
 788                         s/\xe4\x41/Ã/gm ;
 789                         s/\xe4\x4e/Ñ/gm ;
 790                         s/\xe4\x4f/Õ/gm ;
 791                         s/\xe4\x61/ã/gm ;
 792                         s/\xe4\x6e/ñ/gm ;
 793                         s/\xe4\x6f/õ/gm ;
 794                         s/\xe8\x45/Ë/gm ;
 795                         s/\xe8\x49/Ï/gm ;
 796                         s/\xe8\x65/ë/gm ;
 797                         s/\xe8\x69/ï/gm ;
 798                         s/\xe8\x76/ÿ/gm ;
 799                         s/\xe9\x41/Ä/gm ;
 800                         s/\xe9\x4f/Ö/gm ;
 801                         s/\xe9\x55/Ü/gm ;
 802                         s/\xe9\x61/ä/gm ;
 803                         s/\xe9\x6f/ö/gm ;
 804                         s/\xe9\x75/ü/gm ;
 805                         s/\xea\x41/Å/gm ;
 806                         s/\xea\x61/å/gm ;
 807                         # this handles non-sorting blocks (if implementation requires this)
 808                         $string = nsb_clean($_) ;
 809                 }
 810         }
 811         return($string) ;
 812 }
 813
 814 sub nsb_clean {
 815         my $NSB = '\x88' ;              # NSB : begin Non Sorting Block
 816         my $NSE = '\x89' ;              # NSE : Non Sorting Block end
 817         # handles non sorting blocks
 818         my ($string) = @_ ;
 819         $_ = $string ;
 820         s/$NSB/(/gm ;
 821         s/[ ]{0,1}$NSE/) /gm ;
 822         $string = $_ ;
 823         return($string) ;
 824 }
 825
 826 END { }       # module clean-up code here (global destructor)
 827
 828 =back
 829
 830 =head1 AUTHOR
 831
 832 Koha Developement team <info@koha.org>
 833
 834 Paul POULAIN paul.poulain@free.fr
 835
 836 =cut
 837
 838 # $Id$
 839 # $Log$
 840 # Revision 1.8  2004/11/05 10:11:39  tipaul
 841 # export auth_count_usage (bugfix)
 842 #
 843 # Revision 1.7  2004/09/23 16:13:00  tipaul
 844 # Bugfix in modification
 845 #
 846 # Revision 1.6  2004/08/18 16:00:24  tipaul
 847 # fixes for authorities management
 848 #
 849 # Revision 1.5  2004/07/05 13:37:22  doxulting
 850 # First step for working authorities
 851 #
 852 # Revision 1.4  2004/06/22 11:35:37  tipaul
 853 # removing % at the beginning of a string to avoid loooonnnngggg searchs
 854 #
 855 # Revision 1.3  2004/06/17 08:02:13  tipaul
 856 # merging tag & subfield in auth_word for better perfs
 857 #
 858 # Revision 1.2  2004/06/10 08:29:01  tipaul
 859 # MARC authority management (continued)
 860 #
 861 # Revision 1.1  2004/06/07 07:35:01  tipaul
 862 # MARC authority management package
 863 #