Open-ILS/src/perlmods/OpenILS/Application/Storage/WORM.pm

   1 package OpenILS::Application::Storage::WORM;
   2 use base qw/OpenILS::Application::Storage/;
   3 use strict; use warnings;
   4
   5 use Unicode::Normalize;
   6 use OpenSRF::EX qw/:try/;
   7
   8 use OpenSRF::Utils::SettingsClient;
   9 use OpenSRF::Utils::Logger qw/:level/;
  10 my $log = 'OpenSRF::Utils::Logger';
  11
  12 use OpenILS::Utils::FlatXML;
  13 use OpenILS::Utils::Fieldmapper;
  14 use JSON;
  15
  16 use XML::LibXML;
  17 use XML::LibXSLT;
  18 use Time::HiRes qw(time);
  19
  20 my $xml_util    = OpenILS::Utils::FlatXML->new();
  21
  22 my $parser              = XML::LibXML->new();
  23 my $xslt                        = XML::LibXSLT->new();
  24 my $mods_sheet;
  25
  26 use open qw/:utf8/;
  27
  28 my $xpathset = {};
  29
  30 sub child_init {
  31         my $meth = __PACKAGE__->method_lookup('open-ils.storage.direct.config.metabib_field.retrieve.all');
  32         for my $f ($meth->run) {
  33                 $xpathset->{ $f->field_class }->{ $f->name }->{xpath} = $f->xpath;
  34                 $xpathset->{ $f->field_class }->{ $f->name }->{id} = $f->id;
  35                 $log->debug("Loaded XPath from DB: ".$f->field_class." => ".$f->name." : ".$f->xpath, DEBUG);
  36         }
  37 }
  38
  39 # --------------------------------------------------------------------------------
  40 # Fingerprinting
  41
  42 my @fp_mods_xpath = (
  43         '//mods:mods/mods:typeOfResource[text()="text"]' => [
  44                         title   => {
  45                                         xpath   => [
  46                                                         '//mods:mods/mods:titleInfo[mods:title and (@type="uniform")]',
  47                                                         '//mods:mods/mods:titleInfo[mods:title and (@type="translated")]',
  48                                                         '//mods:mods/mods:titleInfo[mods:title and (@type="alternative")]',
  49                                                         '//mods:mods/mods:titleInfo[mods:title and not(@type)]',
  50                                         ],
  51                                         fixup   => '
  52                                                         do {
  53                                                                 $text = lc(NFD($text));
  54                                                                 $text =~ s/\pM+//gso;
  55                                                                 $text =~ s/\s+/ /sgo;
  56                                                                 $text =~ s/^\s*(.+)\s*$/$1/sgo;
  57                                                                 $text =~ s/\b(?:the|an?)\b//sgo;
  58                                                                 $text =~ s/\[.[^\]]+\]//sgo;
  59                                                                 $text =~ s/\s*[;\/\.]*$//sgo;
  60                                                         };
  61                                         ',
  62                         },
  63                         author  => {
  64                                         xpath   => [
  65                                                         '//mods:mods/mods:name[mods:role/mods:text/text()="creator" and @type="personal"]/mods:namePart',
  66                                                         '//mods:mods/mods:name[mods:role/mods:text/text()="creator"]/mods:namePart',
  67                                         ],
  68                                         fixup   => '
  69                                                         do {
  70                                                                 $text = lc(NFD($text));
  71                                                                 $text =~ s/\pM+//gso;
  72                                                                 $text =~ s/\s+/ /sgo;
  73                                                                 $text =~ s/^\s*(.+)\s*$/$1/sgo;
  74                                                                 $text =~ s/,?\s+.*$//sgo;
  75                                                                 $text =~ s/\pM+//gso;
  76                                                         };
  77                                         ',
  78                         },
  79         ],
  80
  81         '//mods:mods/mods:relatedItem[@type!="host" and @type!="series"]' => [
  82                         title   => {
  83                                         xpath   => [
  84                                                         '//mods:mods/mods:relatedItem/mods:titleInfo[mods:title and (@type="uniform")]',
  85                                                         '//mods:mods/mods:relatedItem/mods:titleInfo[mods:title and (@type="translated")]',
  86                                                         '//mods:mods/mods:relatedItem/mods:titleInfo[mods:title and (@type="alternative")]',
  87                                                         '//mods:mods/mods:relatedItem/mods:titleInfo[mods:title and not(@type)]',
  88                                                         '//mods:mods/mods:titleInfo[mods:title and (@type="uniform")]',
  89                                                         '//mods:mods/mods:titleInfo[mods:title and (@type="translated")]',
  90                                                         '//mods:mods/mods:titleInfo[mods:title and (@type="alternative")]',
  91                                                         '//mods:mods/mods:titleInfo[mods:title and not(@type)]',
  92                                         ],
  93                                         fixup   => '
  94                                                         do {
  95                                                                 $text = lc(NFD($text));
  96                                                                 $text =~ s/\pM+//gso;
  97                                                                 $text =~ s/\s+/ /sgo;
  98                                                                 $text =~ s/^\s*(.+)\s*$/$1/sgo;
  99                                                                 $text =~ s/\b(?:the|an?)\b//sgo;
 100                                                                 $text =~ s/\[.[^\]]+\]//sgo;
 101                                                                 $text =~ s/\s*[;\/\.]*$//sgo;
 102                                                                 $text =~ s/\pM+//gso;
 103                                                         };
 104                                         ',
 105                         },
 106                         author  => {
 107                                         xpath   => [
 108                                                         '//mods:mods/mods:relatedItem/mods:name[mods:role/mods:text/text()="creator" and @type="personal"]/mods:namePart',
 109                                                         '//mods:mods/mods:relatedItem/mods:name[mods:role/mods:text/text()="creator"]/mods:namePart',
 110                                                         '//mods:mods/mods:name[mods:role/mods:text/text()="creator" and @type="personal"]/mods:namePart',
 111                                                         '//mods:mods/mods:name[mods:role/mods:text/text()="creator"]/mods:namePart',
 112                                         ],
 113                                         fixup   => '
 114                                                         do {
 115                                                                 $text = lc(NFD($text));
 116                                                                 $text =~ s/\pM+//gso;
 117                                                                 $text =~ s/\s+/ /sgo;
 118                                                                 $text =~ s/^\s*(.+)\s*$/$1/sgo;
 119                                                                 $text =~ s/,?\s+.*$//sgo;
 120                                                                 $text =~ s/\pM+//gso;
 121                                                         };
 122                                         ',
 123                         },
 124         ],
 125
 126 );
 127
 128 push @fp_mods_xpath, '//mods:mods/mods:titleInfo' => $fp_mods_xpath[1];
 129
 130 sub fingerprint_mods {
 131         my $mods = shift;
 132
 133         my $fp_string = '';
 134
 135         my $match_index = 0;
 136         my $block_index = 1;
 137         while ( my $match_xpath = $fp_mods_xpath[$match_index] ) {
 138                 if ( my @nodes = $mods->findnodes( $match_xpath ) ) {
 139
 140                         my $block_name_index = 0;
 141                         my $block_value_index = 1;
 142                         my $block = $fp_mods_xpath[$block_index];
 143                         while ( my $part = $$block[$block_value_index] ) {
 144                                 my $text;
 145                                 for my $xpath ( @{ $part->{xpath} } ) {
 146                                         $text = $mods->findvalue( $xpath );
 147                                         last if ($text);
 148                                 }
 149
 150                                 $log->debug("Found fingerprint text using $$block[$block_name_index] : [$text]", DEBUG);
 151
 152                                 if ($text) {
 153                                         eval $$part{fixup};
 154                                         $fp_string .= $text;
 155                                 }
 156
 157                                 $block_name_index += 2;
 158                                 $block_value_index += 2;
 159                         }
 160                 }
 161                 if ($fp_string) {
 162                         $fp_string =~ s/\W+//gso;
 163                         $log->debug("Fingerprint is [$fp_string]", INFO);;
 164                         return $fp_string;
 165                 }
 166
 167                 $match_index += 2;
 168                 $block_index += 2;
 169         }
 170         return undef;
 171 }
 172
 173
 174
 175 # --------------------------------------------------------------------------------
 176
 177 my $in_xact;
 178 my $begin;
 179 my $commit;
 180 my $rollback;
 181 my $lookup;
 182 my $update_entry;
 183 my $mr_lookup;
 184 my $mr_update;
 185 my $mr_create;
 186 my $create_source_map;
 187 my $sm_lookup;
 188 my $rm_old_rd;
 189 my $rm_old_sm;
 190 my $rm_old_fr;
 191 my $rm_old_tr;
 192 my $rm_old_ar;
 193 my $rm_old_sr;
 194 my $rm_old_kr;
 195 my $rm_old_ser;
 196
 197 my $fr_create;
 198 my $rd_create;
 199 my $create = {};
 200
 201 my %descriptor_code = (
 202         item_type => 'substr($ldr,6,1)',
 203         item_form => '(substr($ldr,6,1) =~ /^(?:f|g|i|m|o|p|r)$/) ? substr($oo8,29,1) : substr($oo8,23,1)',
 204         bib_level => 'substr($ldr,7,1)',
 205         control_type => 'substr($ldr,8,1)',
 206         char_encoding => 'substr($ldr,9,1)',
 207         enc_level => 'substr($ldr,17,1)',
 208         cat_form => 'substr($ldr,18,1)',
 209         pub_status => 'substr($ldr,5,1)',
 210         item_lang => 'substr($oo8,35,3)',
 211         #lit_form => '(substr($ldr,6,1) =~ /^(?:f|g|i|m|o|p|r)$/) ? substr($oo8,33,1) : "0"',
 212         audience => 'substr($oo8,22,1)',
 213 );
 214
 215 sub wormize {
 216
 217         my $self = shift;
 218         my $client = shift;
 219         my @docids = @_;
 220
 221         my $no_map = 0;
 222         if ($self->api_name =~ /no_map/o) {
 223                 $no_map = 1;
 224         }
 225
 226         $in_xact = $self->method_lookup( 'open-ils.storage.transaction.current')
 227                 unless ($in_xact);
 228         $begin = $self->method_lookup( 'open-ils.storage.transaction.begin')
 229                 unless ($begin);
 230         $commit = $self->method_lookup( 'open-ils.storage.transaction.commit')
 231                 unless ($commit);
 232         $rollback = $self->method_lookup( 'open-ils.storage.transaction.rollback')
 233                 unless ($rollback);
 234         $sm_lookup = $self->method_lookup('open-ils.storage.direct.metabib.metarecord_source_map.search.source')
 235                 unless ($sm_lookup);
 236         $mr_lookup = $self->method_lookup('open-ils.storage.direct.metabib.metarecord.search.fingerprint')
 237                 unless ($mr_lookup);
 238         $mr_update = $self->method_lookup('open-ils.storage.direct.metabib.metarecord.batch.update')
 239                 unless ($mr_update);
 240         $mr_create = $self->method_lookup('open-ils.storage.direct.metabib.metarecord.create')
 241                 unless ($mr_create);
 242         $create_source_map = $self->method_lookup('open-ils.storage.direct.metabib.metarecord_source_map.batch.create')
 243                 unless ($create_source_map);
 244         $lookup = $self->method_lookup('open-ils.storage.direct.biblio.record_entry.batch.retrieve')
 245                 unless ($lookup);
 246         $update_entry = $self->method_lookup('open-ils.storage.direct.biblio.record_entry.batch.update')
 247                 unless ($update_entry);
 248         $rm_old_sm = $self->method_lookup( 'open-ils.storage.direct.metabib.metarecord_source_map.mass_delete')
 249                 unless ($rm_old_sm);
 250         $rm_old_rd = $self->method_lookup( 'open-ils.storage.direct.metabib.record_descriptor.mass_delete')
 251                 unless ($rm_old_rd);
 252         $rm_old_fr = $self->method_lookup( 'open-ils.storage.direct.metabib.full_rec.mass_delete')
 253                 unless ($rm_old_fr);
 254         $rm_old_tr = $self->method_lookup( 'open-ils.storage.direct.metabib.title_field_entry.mass_delete')
 255                 unless ($rm_old_tr);
 256         $rm_old_ar = $self->method_lookup( 'open-ils.storage.direct.metabib.author_field_entry.mass_delete')
 257                 unless ($rm_old_ar);
 258         $rm_old_sr = $self->method_lookup( 'open-ils.storage.direct.metabib.subject_field_entry.mass_delete')
 259                 unless ($rm_old_sr);
 260         $rm_old_kr = $self->method_lookup( 'open-ils.storage.direct.metabib.keyword_field_entry.mass_delete')
 261                 unless ($rm_old_kr);
 262         $rm_old_ser = $self->method_lookup( 'open-ils.storage.direct.metabib.series_field_entry.mass_delete')
 263                 unless ($rm_old_ser);
 264         $rd_create = $self->method_lookup( 'open-ils.storage.direct.metabib.record_descriptor.batch.create')
 265                 unless ($rd_create);
 266         $fr_create = $self->method_lookup( 'open-ils.storage.direct.metabib.full_rec.batch.create')
 267                 unless ($fr_create);
 268         $$create{title} = $self->method_lookup( 'open-ils.storage.direct.metabib.title_field_entry.batch.create')
 269                 unless ($$create{title});
 270         $$create{author} = $self->method_lookup( 'open-ils.storage.direct.metabib.author_field_entry.batch.create')
 271                 unless ($$create{author});
 272         $$create{subject} = $self->method_lookup( 'open-ils.storage.direct.metabib.subject_field_entry.batch.create')
 273                 unless ($$create{subject});
 274         $$create{keyword} = $self->method_lookup( 'open-ils.storage.direct.metabib.keyword_field_entry.batch.create')
 275                 unless ($$create{keyword});
 276         $$create{series} = $self->method_lookup( 'open-ils.storage.direct.metabib.series_field_entry.batch.create')
 277                 unless ($$create{series});
 278
 279
 280         my ($outer_xact) = $in_xact->run;
 281         try {
 282                 unless ($outer_xact) {
 283                         $log->debug("WoRM isn't inside a transaction, starting one now.", INFO);
 284                         my ($r) = $begin->run($client);
 285                         unless (defined $r and $r) {
 286                                 $rollback->run;
 287                                 throw OpenSRF::EX::PANIC ("Couldn't BEGIN transaction!")
 288                         }
 289                 }
 290         } catch Error with {
 291                 throw OpenSRF::EX::PANIC ("WoRM Couldn't BEGIN transaction!")
 292         };
 293
 294         my @source_maps;
 295         my @entry_list;
 296         my @mr_list;
 297         my @rd_list;
 298         my @ns_list;
 299         my @mods_data;
 300         my $ret = 0;
 301         for my $entry ( $lookup->run(@docids) ) {
 302                 # step -1: grab the doc from storage
 303                 next unless ($entry);
 304
 305                 if(!$mods_sheet) {
 306                         my $xslt_doc = $parser->parse_file(
 307                                 OpenSRF::Utils::SettingsClient->new->config_value(dirs => 'xsl') .  "/MARC21slim2MODS.xsl");
 308                         $mods_sheet = $xslt->parse_stylesheet( $xslt_doc );
 309                 }
 310
 311                 my $xml = $entry->marc;
 312                 my $docid = $entry->id;
 313                 my $marcdoc = $parser->parse_string($xml);
 314                 my $modsdoc = $mods_sheet->transform($marcdoc);
 315
 316                 my $mods = $modsdoc->documentElement;
 317                 $mods->setNamespace( "http://www.loc.gov/mods/", "mods", 1 );
 318
 319                 $entry->fingerprint( fingerprint_mods( $mods ) );
 320                 push @entry_list, $entry;
 321
 322                 $log->debug("Fingerprint for Record Entry ".$docid." is [".$entry->fingerprint."]", INFO);
 323
 324                 unless ($no_map) {
 325                         my ($mr) = $mr_lookup->run( $entry->fingerprint );
 326                         if (!$mr || !@$mr) {
 327                                 $log->debug("No metarecord found for fingerprint [".$entry->fingerprint."]; Creating a new one", INFO);
 328                                 $mr = new Fieldmapper::metabib::metarecord;
 329                                 $mr->fingerprint( $entry->fingerprint );
 330                                 $mr->master_record( $entry->id );
 331                                 my ($new_mr) = $mr_create->run($mr);
 332                                 $mr->id($new_mr);
 333                                 unless (defined $mr) {
 334                                         throw OpenSRF::EX::PANIC ("Couldn't run open-ils.storage.direct.metabib.metarecord.create!")
 335                                 }
 336                         } else {
 337                                 $log->debug("Retrieved metarecord, id is ".$mr->id, INFO);
 338                                 $mr->mods('');
 339                                 push @mr_list, $mr;
 340                         }
 341
 342                         my $sm = new Fieldmapper::metabib::metarecord_source_map;
 343                         $sm->metarecord( $mr->id );
 344                         $sm->source( $entry->id );
 345                         push @source_maps, $sm;
 346                 }
 347
 348                 my $ldr = $marcdoc->documentElement->getChildrenByTagName('leader')->pop->textContent;
 349                 my $oo8 = $marcdoc->documentElement->findvalue('//*[local-name()="controlfield" and @tag="008"]');
 350
 351                 my $rd_obj = Fieldmapper::metabib::record_descriptor->new;
 352                 for my $rd_field ( keys %descriptor_code ) {
 353                         $rd_obj->$rd_field( eval "$descriptor_code{$rd_field};" );
 354                 }
 355                 $rd_obj->record( $docid );
 356                 push @rd_list, $rd_obj;
 357
 358                 push @mods_data, { $docid => $self->modsdoc_to_values( $mods ) };
 359
 360                 # step 2: build the KOHA rows
 361                 my @tmp_list = _marcxml_to_full_rows( $marcdoc );
 362                 $_->record( $docid ) for (@tmp_list);
 363                 push @ns_list, @tmp_list;
 364
 365                 $ret++;
 366
 367                 last unless ($self->api_name =~ /batch$/o);
 368         }
 369
 370         $rm_old_rd->run( { record => \@docids } );
 371         $rm_old_fr->run( { record => \@docids } );
 372         $rm_old_sm->run( { source => \@docids } ) unless ($no_map);
 373         $rm_old_tr->run( { source => \@docids } );
 374         $rm_old_ar->run( { source => \@docids } );
 375         $rm_old_sr->run( { source => \@docids } );
 376         $rm_old_kr->run( { source => \@docids } );
 377         $rm_old_ser->run( { source => \@docids } );
 378
 379         unless ($no_map) {
 380                 my ($sm) = $create_source_map->run(@source_maps);
 381                 unless (defined $sm) {
 382                         throw OpenSRF::EX::PANIC ("Couldn't run open-ils.storage.direct.metabib.metarecord_source_map.batch.create!")
 383                 }
 384                 my ($mr) = $mr_update->run(@mr_list);
 385                 unless (defined $mr) {
 386                         throw OpenSRF::EX::PANIC ("Couldn't run open-ils.storage.direct.metabib.metarecord.batch.update!")
 387                 }
 388         }
 389
 390         my ($re) = $update_entry->run(@entry_list);
 391         unless (defined $re) {
 392                 throw OpenSRF::EX::PANIC ("Couldn't run open-ils.storage.direct.biblio.record_entry.batch.update!")
 393         }
 394
 395         my ($rd) = $rd_create->run(@rd_list);
 396         unless (defined $rd) {
 397                 throw OpenSRF::EX::PANIC ("Couldn't run open-ils.storage.direct.metabib.record_descriptor.batch.create!")
 398         }
 399
 400         my ($fr) = $fr_create->run(@ns_list);
 401         unless (defined $fr) {
 402                 throw OpenSRF::EX::PANIC ("Couldn't run open-ils.storage.direct.metabib.full_rec.batch.create!")
 403         }
 404
 405         # step 5: insert the new metadata
 406         for my $class ( qw/title author subject keyword series/ ) {
 407                 my @md_list = ();
 408                 for my $doc ( @mods_data ) {
 409                         my ($did) = keys %$doc;
 410                         my ($data) = values %$doc;
 411
 412                         my $fm_constructor = "Fieldmapper::metabib::${class}_field_entry";
 413                         for my $row ( keys %{ $$data{$class} } ) {
 414                                 next unless (exists $$data{$class}{$row});
 415                                 next unless ($$data{$class}{$row}{value});
 416                                 my $fm_obj = $fm_constructor->new;
 417                                 $fm_obj->value( $$data{$class}{$row}{value} );
 418                                 $fm_obj->field( $$data{$class}{$row}{field_id} );
 419                                 $fm_obj->source( $did );
 420                                 $log->debug("$class entry: ".$fm_obj->source." => ".$fm_obj->field." : ".$fm_obj->value, DEBUG);
 421
 422                                 push @md_list, $fm_obj;
 423                         }
 424                 }
 425
 426                 my ($cr) = $$create{$class}->run(@md_list);
 427                 unless (defined $cr) {
 428                         throw OpenSRF::EX::PANIC ("Couldn't run open-ils.storage.direct.metabib.${class}_field_entry.batch.create!")
 429                 }
 430         }
 431
 432         unless ($outer_xact) {
 433                 $log->debug("Commiting transaction started by the WoRM.", INFO);
 434                 my ($c) = $commit->run;
 435                 unless (defined $c and $c) {
 436                         $rollback->run;
 437                         throw OpenSRF::EX::PANIC ("Couldn't COMMIT changes!")
 438                 }
 439         }
 440
 441         return $ret;
 442 }
 443 __PACKAGE__->register_method(
 444         api_name        => "open-ils.worm.wormize",
 445         method          => "wormize",
 446         api_level       => 1,
 447         argc            => 1,
 448 );
 449 __PACKAGE__->register_method(
 450         api_name        => "open-ils.worm.wormize.no_map",
 451         method          => "wormize",
 452         api_level       => 1,
 453         argc            => 1,
 454 );
 455 __PACKAGE__->register_method(
 456         api_name        => "open-ils.worm.wormize.batch",
 457         method          => "wormize",
 458         api_level       => 1,
 459         argc            => 1,
 460 );
 461 __PACKAGE__->register_method(
 462         api_name        => "open-ils.worm.wormize.no_map.batch",
 463         method          => "wormize",
 464         api_level       => 1,
 465         argc            => 1,
 466 );
 467
 468
 469 # --------------------------------------------------------------------------------
 470
 471
 472 sub _marcxml_to_full_rows {
 473
 474         my $marcxml = shift;
 475
 476         my @ns_list;
 477
 478         my $root = $marcxml->documentElement;
 479
 480         for my $tagline ( @{$root->getChildrenByTagName("leader")} ) {
 481                 next unless $tagline;
 482
 483                 my $ns = new Fieldmapper::metabib::full_rec;
 484
 485                 $ns->tag( 'LDR' );
 486                 my $val = NFD($tagline->textContent);
 487                 $val =~ s/(\pM+)//gso;
 488                 $ns->value( $val );
 489
 490                 push @ns_list, $ns;
 491         }
 492
 493         for my $tagline ( @{$root->getChildrenByTagName("controlfield")} ) {
 494                 next unless $tagline;
 495
 496                 my $ns = new Fieldmapper::metabib::full_rec;
 497
 498                 $ns->tag( $tagline->getAttribute( "tag" ) );
 499                 my $val = NFD($tagline->textContent);
 500                 $val =~ s/(\pM+)//gso;
 501                 $ns->value( $val );
 502
 503                 push @ns_list, $ns;
 504         }
 505
 506         for my $tagline ( @{$root->getChildrenByTagName("datafield")} ) {
 507                 next unless $tagline;
 508
 509                 my $tag = $tagline->getAttribute( "tag" );
 510                 my $ind1 = $tagline->getAttribute( "ind1" );
 511                 my $ind2 = $tagline->getAttribute( "ind2" );
 512
 513                 for my $data ( $tagline->childNodes ) {
 514                         next unless $data;
 515
 516                         my $ns = new Fieldmapper::metabib::full_rec;
 517
 518                         $ns->tag( $tag );
 519                         $ns->ind1( $ind1 );
 520                         $ns->ind2( $ind2 );
 521                         $ns->subfield( $data->getAttribute( "code" ) );
 522                         my $val = NFD($data->textContent);
 523                         $val =~ s/(\pM+)//gso;
 524                         $ns->value( lc($val) );
 525
 526                         push @ns_list, $ns;
 527                 }
 528         }
 529         return @ns_list;
 530 }
 531
 532 sub _get_field_value {
 533
 534         my( $root, $xpath ) = @_;
 535
 536         my $string = "";
 537
 538         # grab the set of matching nodes
 539         my @nodes = $root->findnodes( $xpath );
 540         for my $value (@nodes) {
 541
 542                 # grab all children of the node
 543                 my @children = $value->childNodes();
 544                 for my $child (@children) {
 545
 546                         # add the childs content to the growing buffer
 547                         my $content = quotemeta($child->textContent);
 548                         next if ($string =~ /$content/);  # uniquify the values
 549                         $string .= $child->textContent . " ";
 550                 }
 551                 if( ! @children ) {
 552                         $string .= $value->textContent . " ";
 553                 }
 554         }
 555         $string = NFD($string);
 556         $string =~ s/(\pM)//gso;
 557         return lc($string);
 558 }
 559
 560
 561 sub modsdoc_to_values {
 562         my( $self, $mods ) = @_;
 563         my $data = {};
 564         for my $class (keys %$xpathset) {
 565                 $data->{$class} = {};
 566                 for my $type (keys %{$xpathset->{$class}}) {
 567                         $data->{$class}->{$type} = {};
 568                         $data->{$class}->{$type}->{value} = _get_field_value( $mods, $xpathset->{$class}->{$type}->{xpath} );
 569                         $data->{$class}->{$type}->{field_id} = $xpathset->{$class}->{$type}->{id};
 570                 }
 571         }
 572         return $data;
 573 }
 574
 575
 576 1;
 577
 578