C4/Search.pm

   1 package C4::Search;
   2
   3 # This file is part of Koha.
   4 #
   5 # Koha is free software; you can redistribute it and/or modify it under the
   6 # terms of the GNU General Public License as published by the Free Software
   7 # Foundation; either version 2 of the License, or (at your option) any later
   8 # version.
   9 #
  10 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
  11 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  12 # A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License along with
  15 # Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
  16 # Suite 330, Boston, MA  02111-1307 USA
  17
  18 use strict;
  19 #use warnings; FIXME - Bug 2505
  20 require Exporter;
  21 use C4::Context;
  22 use C4::Biblio;    # GetMarcFromKohaField, GetBiblioData
  23 use C4::Koha;      # getFacets
  24 use Lingua::Stem;
  25 use C4::Search::PazPar2;
  26 use XML::Simple;
  27 use C4::Dates qw(format_date);
  28 use C4::Members qw(GetHideLostItemsPreference);
  29 use C4::XSLT;
  30 use C4::Branch;
  31 use C4::Reserves;    # GetReserveStatus
  32 use C4::Debug;
  33 use C4::Charset;
  34 use YAML;
  35 use URI::Escape;
  36 use Business::ISBN;
  37 use MARC::Record;
  38 use MARC::Field;
  39 use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS $DEBUG);
  40
  41 # set the version for version checking
  42 BEGIN {
  43     $VERSION = 3.07.00.049;
  44     $DEBUG = ($ENV{DEBUG}) ? 1 : 0;
  45 }
  46
  47 =head1 NAME
  48
  49 C4::Search - Functions for searching the Koha catalog.
  50
  51 =head1 SYNOPSIS
  52
  53 See opac/opac-search.pl or catalogue/search.pl for example of usage
  54
  55 =head1 DESCRIPTION
  56
  57 This module provides searching functions for Koha's bibliographic databases
  58
  59 =head1 FUNCTIONS
  60
  61 =cut
  62
  63 @ISA    = qw(Exporter);
  64 @EXPORT = qw(
  65   &FindDuplicate
  66   &SimpleSearch
  67   &searchResults
  68   &getRecords
  69   &buildQuery
  70   &GetDistinctValues
  71   &enabled_staff_search_views
  72   &PurgeSearchHistory
  73 );
  74
  75 # make all your functions, whether exported or not;
  76
  77 =head2 FindDuplicate
  78
  79 ($biblionumber,$biblionumber,$title) = FindDuplicate($record);
  80
  81 This function attempts to find duplicate records using a hard-coded, fairly simplistic algorithm
  82
  83 =cut
  84
  85 sub FindDuplicate {
  86     my ($record) = @_;
  87     my $dbh = C4::Context->dbh;
  88     my $result = TransformMarcToKoha( $dbh, $record, '' );
  89     my $sth;
  90     my $query;
  91     my $search;
  92     my $type;
  93     my ( $biblionumber, $title );
  94
  95     # search duplicate on ISBN, easy and fast..
  96     # ... normalize first
  97     if ( $result->{isbn} ) {
  98         $result->{isbn} =~ s/\(.*$//;
  99         $result->{isbn} =~ s/\s+$//;
 100         $query = "isbn:$result->{isbn}";
 101     }
 102     else {
 103         my $QParser;
 104         $QParser = C4::Context->queryparser if (C4::Context->preference('UseQueryParser'));
 105         my $titleindex;
 106         my $authorindex;
 107         my $op;
 108
 109         if ($QParser) {
 110             $titleindex = 'title|exact';
 111             $authorindex = 'author|exact';
 112             $op = '&&';
 113             $QParser->custom_data->{'QueryAutoTruncate'} = C4::Context->preference('QueryAutoTruncate');
 114         } else {
 115             $titleindex = 'ti,ext';
 116             $authorindex = 'au,ext';
 117             $op = 'and';
 118         }
 119
 120         $result->{title} =~ s /\\//g;
 121         $result->{title} =~ s /\"//g;
 122         $result->{title} =~ s /\(//g;
 123         $result->{title} =~ s /\)//g;
 124
 125         # FIXME: instead of removing operators, could just do
 126         # quotes around the value
 127         $result->{title} =~ s/(and|or|not)//g;
 128         $query = "$titleindex:\"$result->{title}\"";
 129         if   ( $result->{author} ) {
 130             $result->{author} =~ s /\\//g;
 131             $result->{author} =~ s /\"//g;
 132             $result->{author} =~ s /\(//g;
 133             $result->{author} =~ s /\)//g;
 134
 135             # remove valid operators
 136             $result->{author} =~ s/(and|or|not)//g;
 137             $query .= " $op $authorindex:\"$result->{author}\"";
 138         }
 139     }
 140
 141     my ( $error, $searchresults, undef ) = SimpleSearch($query); # FIXME :: hardcoded !
 142     my @results;
 143     if (!defined $error) {
 144         foreach my $possible_duplicate_record (@{$searchresults}) {
 145             my $marcrecord = new_record_from_zebra(
 146                 'biblioserver',
 147                 $possible_duplicate_record
 148             );
 149
 150             my $result = TransformMarcToKoha( $dbh, $marcrecord, '' );
 151
 152             # FIXME :: why 2 $biblionumber ?
 153             if ($result) {
 154                 push @results, $result->{'biblionumber'};
 155                 push @results, $result->{'title'};
 156             }
 157         }
 158     }
 159     return @results;
 160 }
 161
 162 =head2 SimpleSearch
 163
 164 ( $error, $results, $total_hits ) = SimpleSearch( $query, $offset, $max_results, [@servers] );
 165
 166 This function provides a simple search API on the bibliographic catalog
 167
 168 =over 2
 169
 170 =item C<input arg:>
 171
 172     * $query can be a simple keyword or a complete CCL query
 173     * @servers is optional. Defaults to biblioserver as found in koha-conf.xml
 174     * $offset - If present, represents the number of records at the beggining to omit. Defaults to 0
 175     * $max_results - if present, determines the maximum number of records to fetch. undef is All. defaults to undef.
 176
 177
 178 =item C<Return:>
 179
 180     Returns an array consisting of three elements
 181     * $error is undefined unless an error is detected
 182     * $results is a reference to an array of records.
 183     * $total_hits is the number of hits that would have been returned with no limit
 184
 185     If an error is returned the two other return elements are undefined. If error itself is undefined
 186     the other two elements are always defined
 187
 188 =item C<usage in the script:>
 189
 190 =back
 191
 192 my ( $error, $marcresults, $total_hits ) = SimpleSearch($query);
 193
 194 if (defined $error) {
 195     $template->param(query_error => $error);
 196     warn "error: ".$error;
 197     output_html_with_http_headers $input, $cookie, $template->output;
 198     exit;
 199 }
 200
 201 my $hits = @{$marcresults};
 202 my @results;
 203
 204 for my $r ( @{$marcresults} ) {
 205     my $marcrecord = MARC::File::USMARC::decode($r);
 206     my $biblio = TransformMarcToKoha(C4::Context->dbh,$marcrecord,q{});
 207
 208     #build the iarray of hashs for the template.
 209     push @results, {
 210         title           => $biblio->{'title'},
 211         subtitle        => $biblio->{'subtitle'},
 212         biblionumber    => $biblio->{'biblionumber'},
 213         author          => $biblio->{'author'},
 214         publishercode   => $biblio->{'publishercode'},
 215         publicationyear => $biblio->{'publicationyear'},
 216         };
 217
 218 }
 219
 220 $template->param(result=>\@results);
 221
 222 =cut
 223
 224 sub SimpleSearch {
 225     my ( $query, $offset, $max_results, $servers )  = @_;
 226
 227     return ( 'No query entered', undef, undef ) unless $query;
 228     # FIXME hardcoded value. See catalog/search.pl & opac-search.pl too.
 229     my @servers = defined ( $servers ) ? @$servers : ( 'biblioserver' );
 230     my @zoom_queries;
 231     my @tmpresults;
 232     my @zconns;
 233     my $results = [];
 234     my $total_hits = 0;
 235
 236     my $QParser;
 237     $QParser = C4::Context->queryparser if (C4::Context->preference('UseQueryParser') && ! ($query =~ m/\w,\w|\w=\w/));
 238     if ($QParser) {
 239         $QParser->custom_data->{'QueryAutoTruncate'} = C4::Context->preference('QueryAutoTruncate');
 240     }
 241
 242     # Initialize & Search Zebra
 243     for ( my $i = 0 ; $i < @servers ; $i++ ) {
 244         eval {
 245             $zconns[$i] = C4::Context->Zconn( $servers[$i], 1 );
 246             if ($QParser) {
 247                 $query =~ s/=/:/g;
 248                 $QParser->parse( $query );
 249                 $query = $QParser->target_syntax($servers[$i]);
 250                 $zoom_queries[$i] = new ZOOM::Query::PQF( $query, $zconns[$i]);
 251             } else {
 252                 $query =~ s/:/=/g;
 253                 $zoom_queries[$i] = new ZOOM::Query::CCL2RPN( $query, $zconns[$i]);
 254             }
 255             $tmpresults[$i] = $zconns[$i]->search( $zoom_queries[$i] );
 256
 257             # error handling
 258             my $error =
 259                 $zconns[$i]->errmsg() . " ("
 260               . $zconns[$i]->errcode() . ") "
 261               . $zconns[$i]->addinfo() . " "
 262               . $zconns[$i]->diagset();
 263
 264             return ( $error, undef, undef ) if $zconns[$i]->errcode();
 265         };
 266         if ($@) {
 267
 268             # caught a ZOOM::Exception
 269             my $error =
 270                 $@->message() . " ("
 271               . $@->code() . ") "
 272               . $@->addinfo() . " "
 273               . $@->diagset();
 274             warn $error." for query: $query";
 275             return ( $error, undef, undef );
 276         }
 277     }
 278
 279     _ZOOM_event_loop(
 280         \@zconns,
 281         \@tmpresults,
 282         sub {
 283             my ($i, $size) = @_;
 284             my $first_record = defined($offset) ? $offset + 1 : 1;
 285             my $hits = $tmpresults[ $i - 1 ]->size();
 286             $total_hits += $hits;
 287             my $last_record = $hits;
 288             if ( defined $max_results && $offset + $max_results < $hits ) {
 289                 $last_record = $offset + $max_results;
 290             }
 291
 292             for my $j ( $first_record .. $last_record ) {
 293                 my $record = eval {
 294                   $tmpresults[ $i - 1 ]->record( $j - 1 )->raw()
 295                   ;    # 0 indexed
 296                 };
 297                 push @{$results}, $record if defined $record;
 298             }
 299         }
 300     );
 301
 302     foreach my $zoom_query (@zoom_queries) {
 303         $zoom_query->destroy();
 304     }
 305
 306     return ( undef, $results, $total_hits );
 307 }
 308
 309 =head2 getRecords
 310
 311 ( undef, $results_hashref, \@facets_loop ) = getRecords (
 312
 313         $koha_query,       $simple_query, $sort_by_ref,    $servers_ref,
 314         $results_per_page, $offset,       $expanded_facet, $branches,$itemtypes,
 315         $query_type,       $scan
 316     );
 317
 318 The all singing, all dancing, multi-server, asynchronous, scanning,
 319 searching, record nabbing, facet-building
 320
 321 See verbse embedded documentation.
 322
 323 =cut
 324
 325 sub getRecords {
 326     my (
 327         $koha_query,       $simple_query, $sort_by_ref,    $servers_ref,
 328         $results_per_page, $offset,       $expanded_facet, $branches,
 329         $itemtypes,        $query_type,   $scan,           $opac
 330     ) = @_;
 331
 332     my @servers = @$servers_ref;
 333     my @sort_by = @$sort_by_ref;
 334
 335     # Initialize variables for the ZOOM connection and results object
 336     my $zconn;
 337     my @zconns;
 338     my @results;
 339     my $results_hashref = ();
 340
 341     # Initialize variables for the faceted results objects
 342     my $facets_counter = {};
 343     my $facets_info    = {};
 344     my $facets         = getFacets();
 345
 346     my @facets_loop;    # stores the ref to array of hashes for template facets loop
 347
 348     ### LOOP THROUGH THE SERVERS
 349     for ( my $i = 0 ; $i < @servers ; $i++ ) {
 350         $zconns[$i] = C4::Context->Zconn( $servers[$i], 1 );
 351
 352 # perform the search, create the results objects
 353 # if this is a local search, use the $koha-query, if it's a federated one, use the federated-query
 354         my $query_to_use = ($servers[$i] =~ /biblioserver/) ? $koha_query : $simple_query;
 355
 356         #$query_to_use = $simple_query if $scan;
 357         warn $simple_query if ( $scan and $DEBUG );
 358
 359         # Check if we've got a query_type defined, if so, use it
 360         eval {
 361             if ($query_type) {
 362                 if ($query_type =~ /^ccl/) {
 363                     $query_to_use =~ s/\:/\=/g;    # change : to = last minute (FIXME)
 364                     $results[$i] = $zconns[$i]->search(new ZOOM::Query::CCL2RPN($query_to_use, $zconns[$i]));
 365                 } elsif ($query_type =~ /^cql/) {
 366                     $results[$i] = $zconns[$i]->search(new ZOOM::Query::CQL($query_to_use, $zconns[$i]));
 367                 } elsif ($query_type =~ /^pqf/) {
 368                     $results[$i] = $zconns[$i]->search(new ZOOM::Query::PQF($query_to_use, $zconns[$i]));
 369                 } else {
 370                     warn "Unknown query_type '$query_type'.  Results undetermined.";
 371                 }
 372             } elsif ($scan) {
 373                     $results[$i] = $zconns[$i]->scan(  new ZOOM::Query::CCL2RPN($query_to_use, $zconns[$i]));
 374             } else {
 375                     $results[$i] = $zconns[$i]->search(new ZOOM::Query::CCL2RPN($query_to_use, $zconns[$i]));
 376             }
 377         };
 378         if ($@) {
 379             warn "WARNING: query problem with $query_to_use " . $@;
 380         }
 381
 382         # Concatenate the sort_by limits and pass them to the results object
 383         # Note: sort will override rank
 384         my $sort_by;
 385         foreach my $sort (@sort_by) {
 386             if ( $sort eq "author_az" || $sort eq "author_asc" ) {
 387                 $sort_by .= "1=1003 <i ";
 388             }
 389             elsif ( $sort eq "author_za" || $sort eq "author_dsc" ) {
 390                 $sort_by .= "1=1003 >i ";
 391             }
 392             elsif ( $sort eq "popularity_asc" ) {
 393                 $sort_by .= "1=9003 <i ";
 394             }
 395             elsif ( $sort eq "popularity_dsc" ) {
 396                 $sort_by .= "1=9003 >i ";
 397             }
 398             elsif ( $sort eq "call_number_asc" ) {
 399                 $sort_by .= "1=8007  <i ";
 400             }
 401             elsif ( $sort eq "call_number_dsc" ) {
 402                 $sort_by .= "1=8007 >i ";
 403             }
 404             elsif ( $sort eq "pubdate_asc" ) {
 405                 $sort_by .= "1=31 <i ";
 406             }
 407             elsif ( $sort eq "pubdate_dsc" ) {
 408                 $sort_by .= "1=31 >i ";
 409             }
 410             elsif ( $sort eq "acqdate_asc" ) {
 411                 $sort_by .= "1=32 <i ";
 412             }
 413             elsif ( $sort eq "acqdate_dsc" ) {
 414                 $sort_by .= "1=32 >i ";
 415             }
 416             elsif ( $sort eq "title_az" || $sort eq "title_asc" ) {
 417                 $sort_by .= "1=4 <i ";
 418             }
 419             elsif ( $sort eq "title_za" || $sort eq "title_dsc" ) {
 420                 $sort_by .= "1=4 >i ";
 421             }
 422             else {
 423                 warn "Ignoring unrecognized sort '$sort' requested" if $sort_by;
 424             }
 425         }
 426         if ( $sort_by && !$scan && $results[$i] ) {
 427             if ( $results[$i]->sort( "yaz", $sort_by ) < 0 ) {
 428                 warn "WARNING sort $sort_by failed";
 429             }
 430         }
 431     }    # finished looping through servers
 432
 433     # The big moment: asynchronously retrieve results from all servers
 434         _ZOOM_event_loop(
 435             \@zconns,
 436             \@results,
 437             sub {
 438                 my ( $i, $size ) = @_;
 439                 my $results_hash;
 440
 441                 # loop through the results
 442                 $results_hash->{'hits'} = $size;
 443                 my $times;
 444                 if ( $offset + $results_per_page <= $size ) {
 445                     $times = $offset + $results_per_page;
 446                 }
 447                 else {
 448                     $times = $size;
 449                 }
 450
 451                 for ( my $j = $offset ; $j < $times ; $j++ ) {
 452                     my $records_hash;
 453                     my $record;
 454
 455                     ## Check if it's an index scan
 456                     if ($scan) {
 457                         my ( $term, $occ ) = $results[ $i - 1 ]->display_term($j);
 458
 459                  # here we create a minimal MARC record and hand it off to the
 460                  # template just like a normal result ... perhaps not ideal, but
 461                  # it works for now
 462                         my $tmprecord = MARC::Record->new();
 463                         $tmprecord->encoding('UTF-8');
 464                         my $tmptitle;
 465                         my $tmpauthor;
 466
 467                 # the minimal record in author/title (depending on MARC flavour)
 468                         if ( C4::Context->preference("marcflavour") eq
 469                             "UNIMARC" )
 470                         {
 471                             $tmptitle = MARC::Field->new(
 472                                 '200', ' ', ' ',
 473                                 a => $term,
 474                                 f => $occ
 475                             );
 476                             $tmprecord->append_fields($tmptitle);
 477                         }
 478                         else {
 479                             $tmptitle =
 480                               MARC::Field->new( '245', ' ', ' ', a => $term, );
 481                             $tmpauthor =
 482                               MARC::Field->new( '100', ' ', ' ', a => $occ, );
 483                             $tmprecord->append_fields($tmptitle);
 484                             $tmprecord->append_fields($tmpauthor);
 485                         }
 486                         $results_hash->{'RECORDS'}[$j] =
 487                           $tmprecord->as_usmarc();
 488                     }
 489
 490                     # not an index scan
 491                     else {
 492                         $record = $results[ $i - 1 ]->record($j)->raw();
 493                         # warn "RECORD $j:".$record;
 494                         $results_hash->{'RECORDS'}[$j] = $record;
 495                     }
 496
 497                 }
 498                 $results_hashref->{ $servers[ $i - 1 ] } = $results_hash;
 499
 500                 # Fill the facets while we're looping, but only for the
 501                 # biblioserver and not for a scan
 502                 if ( !$scan && $servers[ $i - 1 ] =~ /biblioserver/ ) {
 503                     $facets_counter = GetFacets( $results[ $i - 1 ] );
 504                     $facets_info    = _get_facets_info( $facets );
 505                 }
 506
 507                 # BUILD FACETS
 508                 if ( $servers[ $i - 1 ] =~ /biblioserver/ ) {
 509                     for my $link_value (
 510                         sort { $facets_counter->{$b} <=> $facets_counter->{$a} }
 511                         keys %$facets_counter
 512                       )
 513                     {
 514                         my $expandable;
 515                         my $number_of_facets;
 516                         my @this_facets_array;
 517                         for my $one_facet (
 518                             sort {
 519                                 $facets_counter->{$link_value}
 520                                   ->{$b} <=> $facets_counter->{$link_value}
 521                                   ->{$a}
 522                             } keys %{ $facets_counter->{$link_value} }
 523                           )
 524                         {
 525                             $number_of_facets++;
 526                             if (   ( $number_of_facets <= 5 )
 527                                 || ( $expanded_facet eq $link_value )
 528                                 || ( $facets_info->{$link_value}->{'expanded'} )
 529                               )
 530                             {
 531
 532 # Sanitize the link value : parenthesis, question and exclamation mark will cause errors with CCL
 533                                 my $facet_link_value = $one_facet;
 534                                 $facet_link_value =~ s/[()!?¡¿؟]/ /g;
 535
 536                                 # fix the length that will display in the label,
 537                                 my $facet_label_value = $one_facet;
 538                                 my $facet_max_length  = C4::Context->preference(
 539                                     'FacetLabelTruncationLength')
 540                                   || 20;
 541                                 $facet_label_value =
 542                                   substr( $one_facet, 0, $facet_max_length )
 543                                   . "..."
 544                                   if length($facet_label_value) >
 545                                       $facet_max_length;
 546
 547                             # if it's a branch, label by the name, not the code,
 548                                 if ( $link_value =~ /branch/ ) {
 549                                     if (   defined $branches
 550                                         && ref($branches) eq "HASH"
 551                                         && defined $branches->{$one_facet}
 552                                         && ref( $branches->{$one_facet} ) eq
 553                                         "HASH" )
 554                                     {
 555                                         $facet_label_value =
 556                                           $branches->{$one_facet}
 557                                           ->{'branchname'};
 558                                     }
 559                                     else {
 560                                         $facet_label_value = "*";
 561                                     }
 562                                 }
 563
 564                           # if it's a itemtype, label by the name, not the code,
 565                                 if ( $link_value =~ /itype/ ) {
 566                                     if (   defined $itemtypes
 567                                         && ref($itemtypes) eq "HASH"
 568                                         && defined $itemtypes->{$one_facet}
 569                                         && ref( $itemtypes->{$one_facet} ) eq
 570                                         "HASH" )
 571                                     {
 572                                         $facet_label_value =
 573                                           $itemtypes->{$one_facet}
 574                                           ->{'description'};
 575                                     }
 576                                 }
 577
 578                # also, if it's a location code, use the name instead of the code
 579                                 if ( $link_value =~ /location/ ) {
 580                                     $facet_label_value =
 581                                       GetKohaAuthorisedValueLib( 'LOC',
 582                                         $one_facet, $opac );
 583                                 }
 584
 585                 # but we're down with the whole label being in the link's title.
 586                                 push @this_facets_array,
 587                                   {
 588                                     facet_count =>
 589                                       $facets_counter->{$link_value}
 590                                       ->{$one_facet},
 591                                     facet_label_value => $facet_label_value,
 592                                     facet_title_value => $one_facet,
 593                                     facet_link_value  => $facet_link_value,
 594                                     type_link_value   => $link_value,
 595                                   }
 596                                   if ($facet_label_value);
 597                             }
 598                         }
 599
 600                         # handle expanded option
 601                         unless ( $facets_info->{$link_value}->{'expanded'} ) {
 602                             $expandable = 1
 603                               if ( ( $number_of_facets > 5 )
 604                                 && ( $expanded_facet ne $link_value ) );
 605                         }
 606                         push @facets_loop,
 607                           {
 608                             type_link_value => $link_value,
 609                             type_id         => $link_value . "_id",
 610                             "type_label_"
 611                               . $facets_info->{$link_value}->{'label_value'} =>
 612                               1,
 613                             facets     => \@this_facets_array,
 614                             expandable => $expandable,
 615                             expand     => $link_value,
 616                           }
 617                           unless (
 618                             (
 619                                 $facets_info->{$link_value}->{'label_value'} =~
 620                                 /Libraries/
 621                             )
 622                             and ( C4::Context->preference('singleBranchMode') )
 623                           );
 624                     }
 625                 }
 626             }
 627         );
 628     return ( undef, $results_hashref, \@facets_loop );
 629 }
 630
 631 sub GetFacets {
 632
 633     my $rs = shift;
 634     my $facets;
 635
 636     my $indexing_mode    = C4::Context->config('zebra_bib_index_mode') // 'dom';
 637     my $use_zebra_facets = C4::Context->config('use_zebra_facets') // 0;
 638
 639     if ( $indexing_mode eq 'dom' &&
 640          $use_zebra_facets ) {
 641         $facets = _get_facets_from_zebra( $rs );
 642     } else {
 643         $facets = _get_facets_from_records( $rs );
 644     }
 645
 646     return $facets;
 647 }
 648
 649 sub _get_facets_from_records {
 650
 651     my $rs = shift;
 652
 653     my $facets_maxrecs = C4::Context->preference('maxRecordsForFacets') // 20;
 654     my $facets_config  = getFacets();
 655     my $facets         = {};
 656     my $size           = $rs->size();
 657     my $jmax           = $size > $facets_maxrecs
 658                             ? $facets_maxrecs
 659                             : $size;
 660
 661     for ( my $j = 0 ; $j < $jmax ; $j++ ) {
 662
 663         my $marc_record = new_record_from_zebra (
 664                 'biblioserver',
 665                 $rs->record( $j )->raw()
 666         );
 667
 668         if ( ! defined $marc_record ) {
 669             warn "ERROR DECODING RECORD - $@: " .
 670                 $rs->record( $j )->raw();
 671             next;
 672         }
 673
 674         _get_facets_data_from_record( $marc_record, $facets_config, $facets );
 675     }
 676
 677     return $facets;
 678 }
 679
 680 =head2 _get_facets_data_from_record
 681
 682     C4::Search::_get_facets_data_from_record( $marc_record, $facets, $facets_counter );
 683
 684 Internal function that extracts facets information from a MARC::Record object
 685 and populates $facets_counter for using in getRecords.
 686
 687 $facets is expected to be filled with C4::Koha::getFacets output (i.e. the configured
 688 facets for Zebra).
 689
 690 =cut
 691
 692 sub _get_facets_data_from_record {
 693
 694     my ( $marc_record, $facets, $facets_counter ) = @_;
 695
 696     for my $facet (@$facets) {
 697
 698         my @used_datas = ();
 699
 700         foreach my $tag ( @{ $facet->{ tags } } ) {
 701
 702             # tag number is the first three digits
 703             my $tag_num          = substr( $tag, 0, 3 );
 704             # subfields are the remainder
 705             my $subfield_letters = substr( $tag, 3 );
 706
 707             my @fields = $marc_record->field( $tag_num );
 708             foreach my $field (@fields) {
 709                 # If $field->indicator(1) eq 'z', it means it is a 'see from'
 710                 # field introduced because of IncludeSeeFromInSearches, so skip it
 711                 next if $field->indicator(1) eq 'z';
 712
 713                 my $data = $field->as_string( $subfield_letters, $facet->{ sep } );
 714
 715                 unless ( grep { /^\Q$data\E$/ } @used_datas ) {
 716                     push @used_datas, $data;
 717                     $facets_counter->{ $facet->{ idx } }->{ $data }++;
 718                 }
 719             }
 720         }
 721     }
 722 }
 723
 724 =head2 _get_facets_from_zebra
 725
 726     my $facets = _get_facets_from_zebra( $result_set )
 727
 728 Retrieves facets for a specified result set. It loops through the facets defined
 729 in C4::Koha::getFacets and returns a hash with the following structure:
 730
 731    {  facet_idx => {
 732             facet_value => count
 733       },
 734       ...
 735    }
 736
 737 =cut
 738
 739 sub _get_facets_from_zebra {
 740
 741     my $rs = shift;
 742
 743     # save current elementSetName
 744     my $elementSetName = $rs->option( 'elementSetName' );
 745
 746     my $facets_loop = getFacets();
 747     my $facets_data  = {};
 748     # loop through defined facets and fill the facets hashref
 749     foreach my $facet ( @$facets_loop ) {
 750
 751         my $idx = $facet->{ idx };
 752         my $sep = $facet->{ sep };
 753         my $facet_values = _get_facet_from_result_set( $idx, $rs, $sep );
 754         if ( $facet_values ) {
 755             # we've actually got a result
 756             $facets_data->{ $idx } = $facet_values;
 757         }
 758     }
 759     # set elementSetName to its previous value to avoid side effects
 760     $rs->option( elementSetName => $elementSetName );
 761
 762     return $facets_data;
 763 }
 764
 765 =head2 _get_facet_from_result_set
 766
 767     my $facet_values =
 768         C4::Search::_get_facet_from_result_set( $facet_idx, $result_set, $sep )
 769
 770 Internal function that extracts facet information for a specific index ($facet_idx) and
 771 returns a hash containing facet values and count:
 772
 773     {
 774         $facet_value => $count ,
 775         ...
 776     }
 777
 778 Warning: this function has the side effect of changing the elementSetName for the result
 779 set. It is a helper function for the main loop, which takes care of backing it up for
 780 restoring.
 781
 782 =cut
 783
 784 sub _get_facet_from_result_set {
 785
 786     my $facet_idx = shift;
 787     my $rs        = shift;
 788     my $sep       = shift;
 789
 790     my $internal_sep  = '<*>';
 791     my $facetMaxCount = C4::Context->preference('FacetMaxCount') // 20;
 792
 793     return if ( ! defined $facet_idx || ! defined $rs );
 794     # zebra's facet element, untokenized index
 795     my $facet_element = 'zebra::facet::' . $facet_idx . ':0:' . $facetMaxCount;
 796     # configure zebra results for retrieving the desired facet
 797     $rs->option( elementSetName => $facet_element );
 798     # get the facet record from result set
 799     my $facet = $rs->record( 0 )->raw;
 800     # if the facet has no restuls...
 801     return if !defined $facet;
 802     # TODO: benchmark DOM vs. SAX performance
 803     my $facet_dom = XML::LibXML->load_xml(
 804       string => ($facet)
 805     );
 806     my @terms = $facet_dom->getElementsByTagName('term');
 807     return if ! @terms;
 808
 809     my $facets = {};
 810     foreach my $term ( @terms ) {
 811         my $facet_value = $term->textContent;
 812         $facet_value =~ s/\Q$internal_sep\E/$sep/ if defined $sep;
 813         $facets->{ $facet_value } = $term->getAttribute( 'occur' );
 814     }
 815
 816     return $facets;
 817 }
 818
 819 =head2 _get_facets_info
 820
 821     my $facets_info = C4::Search::_get_facets_info( $facets )
 822
 823 Internal function that extracts facets information and properly builds
 824 the data structure needed to render facet labels.
 825
 826 =cut
 827
 828 sub _get_facets_info {
 829
 830     my $facets = shift;
 831
 832     my $facets_info = {};
 833
 834     for my $facet ( @$facets ) {
 835         $facets_info->{ $facet->{ idx } }->{ label_value } = $facet->{ label };
 836         $facets_info->{ $facet->{ idx } }->{ expanded }    = $facet->{ expanded };
 837     }
 838
 839     return $facets_info;
 840 }
 841
 842 sub pazGetRecords {
 843     my (
 844         $koha_query,       $simple_query, $sort_by_ref,    $servers_ref,
 845         $results_per_page, $offset,       $expanded_facet, $branches,
 846         $query_type,       $scan
 847     ) = @_;
 848
 849     my $paz = C4::Search::PazPar2->new(C4::Context->config('pazpar2url'));
 850     $paz->init();
 851     $paz->search($simple_query);
 852     sleep 1;   # FIXME: WHY?
 853
 854     # do results
 855     my $results_hashref = {};
 856     my $stats = XMLin($paz->stat);
 857     my $results = XMLin($paz->show($offset, $results_per_page, 'work-title:1'), forcearray => 1);
 858
 859     # for a grouped search result, the number of hits
 860     # is the number of groups returned; 'bib_hits' will have
 861     # the total number of bibs.
 862     $results_hashref->{'biblioserver'}->{'hits'} = $results->{'merged'}->[0];
 863     $results_hashref->{'biblioserver'}->{'bib_hits'} = $stats->{'hits'};
 864
 865     HIT: foreach my $hit (@{ $results->{'hit'} }) {
 866         my $recid = $hit->{recid}->[0];
 867
 868         my $work_title = $hit->{'md-work-title'}->[0];
 869         my $work_author;
 870         if (exists $hit->{'md-work-author'}) {
 871             $work_author = $hit->{'md-work-author'}->[0];
 872         }
 873         my $group_label = (defined $work_author) ? "$work_title / $work_author" : $work_title;
 874
 875         my $result_group = {};
 876         $result_group->{'group_label'} = $group_label;
 877         $result_group->{'group_merge_key'} = $recid;
 878
 879         my $count = 1;
 880         if (exists $hit->{count}) {
 881             $count = $hit->{count}->[0];
 882         }
 883         $result_group->{'group_count'} = $count;
 884
 885         for (my $i = 0; $i < $count; $i++) {
 886             # FIXME -- may need to worry about diacritics here
 887             my $rec = $paz->record($recid, $i);
 888             push @{ $result_group->{'RECORDS'} }, $rec;
 889         }
 890
 891         push @{ $results_hashref->{'biblioserver'}->{'GROUPS'} }, $result_group;
 892     }
 893
 894     # pass through facets
 895     my $termlist_xml = $paz->termlist('author,subject');
 896     my $terms = XMLin($termlist_xml, forcearray => 1);
 897     my @facets_loop = ();
 898     #die Dumper($results);
 899 #    foreach my $list (sort keys %{ $terms->{'list'} }) {
 900 #        my @facets = ();
 901 #        foreach my $facet (sort @{ $terms->{'list'}->{$list}->{'term'} } ) {
 902 #            push @facets, {
 903 #                facet_label_value => $facet->{'name'}->[0],
 904 #            };
 905 #        }
 906 #        push @facets_loop, ( {
 907 #            type_label => $list,
 908 #            facets => \@facets,
 909 #        } );
 910 #    }
 911
 912     return ( undef, $results_hashref, \@facets_loop );
 913 }
 914
 915 # STOPWORDS
 916 sub _remove_stopwords {
 917     my ( $operand, $index ) = @_;
 918     my @stopwords_removed;
 919
 920     # phrase and exact-qualified indexes shouldn't have stopwords removed
 921     if ( $index !~ m/,(phr|ext)/ ) {
 922
 923 # remove stopwords from operand : parse all stopwords & remove them (case insensitive)
 924 #       we use IsAlpha unicode definition, to deal correctly with diacritics.
 925 #       otherwise, a French word like "leçon" woudl be split into "le" "çon", "le"
 926 #       is a stopword, we'd get "çon" and wouldn't find anything...
 927 #
 928                 foreach ( keys %{ C4::Context->stopwords } ) {
 929                         next if ( $_ =~ /(and|or|not)/ );    # don't remove operators
 930                         if ( my ($matched) = ($operand =~
 931                                 /([^\X\p{isAlnum}]\Q$_\E[^\X\p{isAlnum}]|[^\X\p{isAlnum}]\Q$_\E$|^\Q$_\E[^\X\p{isAlnum}])/gi))
 932                         {
 933                                 $operand =~ s/\Q$matched\E/ /gi;
 934                                 push @stopwords_removed, $_;
 935                         }
 936                 }
 937         }
 938     return ( $operand, \@stopwords_removed );
 939 }
 940
 941 # TRUNCATION
 942 sub _detect_truncation {
 943     my ( $operand, $index ) = @_;
 944     my ( @nontruncated, @righttruncated, @lefttruncated, @rightlefttruncated,
 945         @regexpr );
 946     $operand =~ s/^ //g;
 947     my @wordlist = split( /\s/, $operand );
 948     foreach my $word (@wordlist) {
 949         if ( $word =~ s/^\*([^\*]+)\*$/$1/ ) {
 950             push @rightlefttruncated, $word;
 951         }
 952         elsif ( $word =~ s/^\*([^\*]+)$/$1/ ) {
 953             push @lefttruncated, $word;
 954         }
 955         elsif ( $word =~ s/^([^\*]+)\*$/$1/ ) {
 956             push @righttruncated, $word;
 957         }
 958         elsif ( index( $word, "*" ) < 0 ) {
 959             push @nontruncated, $word;
 960         }
 961         else {
 962             push @regexpr, $word;
 963         }
 964     }
 965     return (
 966         \@nontruncated,       \@righttruncated, \@lefttruncated,
 967         \@rightlefttruncated, \@regexpr
 968     );
 969 }
 970
 971 # STEMMING
 972 sub _build_stemmed_operand {
 973     my ($operand,$lang) = @_;
 974     require Lingua::Stem::Snowball ;
 975     my $stemmed_operand=q{};
 976
 977     # If operand contains a digit, it is almost certainly an identifier, and should
 978     # not be stemmed.  This is particularly relevant for ISBNs and ISSNs, which
 979     # can contain the letter "X" - for example, _build_stemmend_operand would reduce
 980     # "014100018X" to "x ", which for a MARC21 database would bring up irrelevant
 981     # results (e.g., "23 x 29 cm." from the 300$c).  Bug 2098.
 982     return $operand if $operand =~ /\d/;
 983
 984 # FIXME: the locale should be set based on the user's language and/or search choice
 985     #warn "$lang";
 986     # Make sure we only use the first two letters from the language code
 987     $lang = lc(substr($lang, 0, 2));
 988     # The language codes for the two variants of Norwegian will now be "nb" and "nn",
 989     # none of which Lingua::Stem::Snowball can use, so we need to "translate" them
 990     if ($lang eq 'nb' || $lang eq 'nn') {
 991       $lang = 'no';
 992     }
 993     my $stemmer = Lingua::Stem::Snowball->new( lang => $lang,
 994                                                encoding => "UTF-8" );
 995
 996     my @words = split( / /, $operand );
 997     my @stems = $stemmer->stem(\@words);
 998     for my $stem (@stems) {
 999         $stemmed_operand .= "$stem";
1000         $stemmed_operand .= "?"
1001           unless ( $stem =~ /(and$|or$|not$)/ ) || ( length($stem) < 3 );
1002         $stemmed_operand .= " ";
1003     }
1004     warn "STEMMED OPERAND: $stemmed_operand" if $DEBUG;
1005     return $stemmed_operand;
1006 }
1007
1008 # FIELD WEIGHTING
1009 sub _build_weighted_query {
1010
1011 # FIELD WEIGHTING - This is largely experimental stuff. What I'm committing works
1012 # pretty well but could work much better if we had a smarter query parser
1013     my ( $operand, $stemmed_operand, $index ) = @_;
1014     my $stemming      = C4::Context->preference("QueryStemming")     || 0;
1015     my $weight_fields = C4::Context->preference("QueryWeightFields") || 0;
1016     my $fuzzy_enabled = C4::Context->preference("QueryFuzzy")        || 0;
1017     $operand =~ s/"/ /g;    # Bug 7518: searches with quotation marks don't work
1018
1019     my $weighted_query .= "(rk=(";    # Specifies that we're applying rank
1020
1021     # Keyword, or, no index specified
1022     if ( ( $index eq 'kw' ) || ( !$index ) ) {
1023         $weighted_query .=
1024           "Title-cover,ext,r1=\"$operand\"";    # exact title-cover
1025         $weighted_query .= " or ti,ext,r2=\"$operand\"";    # exact title
1026         $weighted_query .= " or Title-cover,phr,r3=\"$operand\"";    # phrase title
1027         $weighted_query .= " or ti,wrdl,r4=\"$operand\"";    # words in title
1028           #$weighted_query .= " or any,ext,r4=$operand";               # exact any
1029           #$weighted_query .=" or kw,wrdl,r5=\"$operand\"";            # word list any
1030         $weighted_query .= " or wrdl,fuzzy,r8=\"$operand\""
1031           if $fuzzy_enabled;    # add fuzzy, word list
1032         $weighted_query .= " or wrdl,right-Truncation,r9=\"$stemmed_operand\""
1033           if ( $stemming and $stemmed_operand )
1034           ;                     # add stemming, right truncation
1035         $weighted_query .= " or wrdl,r9=\"$operand\"";
1036
1037         # embedded sorting: 0 a-z; 1 z-a
1038         # $weighted_query .= ") or (sort1,aut=1";
1039     }
1040
1041     # Barcode searches should skip this process
1042     elsif ( $index eq 'bc' ) {
1043         $weighted_query .= "bc=\"$operand\"";
1044     }
1045
1046     # Authority-number searches should skip this process
1047     elsif ( $index eq 'an' ) {
1048         $weighted_query .= "an=\"$operand\"";
1049     }
1050
1051     # If the index already has more than one qualifier, wrap the operand
1052     # in quotes and pass it back (assumption is that the user knows what they
1053     # are doing and won't appreciate us mucking up their query
1054     elsif ( $index =~ ',' ) {
1055         $weighted_query .= " $index=\"$operand\"";
1056     }
1057
1058     #TODO: build better cases based on specific search indexes
1059     else {
1060         $weighted_query .= " $index,ext,r1=\"$operand\"";    # exact index
1061           #$weighted_query .= " or (title-sort-az=0 or $index,startswithnt,st-word,r3=$operand #)";
1062         $weighted_query .= " or $index,phr,r3=\"$operand\"";    # phrase index
1063         $weighted_query .= " or $index,wrdl,r6=\"$operand\"";    # word list index
1064         $weighted_query .= " or $index,wrdl,fuzzy,r8=\"$operand\""
1065           if $fuzzy_enabled;    # add fuzzy, word list
1066         $weighted_query .= " or $index,wrdl,rt,r9=\"$stemmed_operand\""
1067           if ( $stemming and $stemmed_operand );    # add stemming, right truncation
1068     }
1069
1070     $weighted_query .= "))";                       # close rank specification
1071     return $weighted_query;
1072 }
1073
1074 =head2 getIndexes
1075
1076 Return an array with available indexes.
1077
1078 =cut
1079
1080 sub getIndexes{
1081     my @indexes = (
1082                     # biblio indexes
1083                     'ab',
1084                     'Abstract',
1085                     'acqdate',
1086                     'allrecords',
1087                     'an',
1088                     'Any',
1089                     'at',
1090                     'au',
1091                     'aub',
1092                     'aud',
1093                     'audience',
1094                     'auo',
1095                     'aut',
1096                     'Author',
1097                     'Author-in-order ',
1098                     'Author-personal-bibliography',
1099                     'Authority-Number',
1100                     'authtype',
1101                     'bc',
1102                     'Bib-level',
1103                     'biblionumber',
1104                     'bio',
1105                     'biography',
1106                     'callnum',
1107                     'cfn',
1108                     'Chronological-subdivision',
1109                     'cn-bib-source',
1110                     'cn-bib-sort',
1111                     'cn-class',
1112                     'cn-item',
1113                     'cn-prefix',
1114                     'cn-suffix',
1115                     'cpn',
1116                     'Code-institution',
1117                     'Conference-name',
1118                     'Conference-name-heading',
1119                     'Conference-name-see',
1120                     'Conference-name-seealso',
1121                     'Content-type',
1122                     'Control-number',
1123                     'copydate',
1124                     'Corporate-name',
1125                     'Corporate-name-heading',
1126                     'Corporate-name-see',
1127                     'Corporate-name-seealso',
1128                     'Country-publication',
1129                     'ctype',
1130                     'curriculum',
1131                     'date-entered-on-file',
1132                     'Date-of-acquisition',
1133                     'Date-of-publication',
1134                     'Dewey-classification',
1135                     'Dissertation-information',
1136                     'EAN',
1137                     'extent',
1138                     'fic',
1139                     'fiction',
1140                     'Form-subdivision',
1141                     'format',
1142                     'Geographic-subdivision',
1143                     'he',
1144                     'Heading',
1145                     'Heading-use-main-or-added-entry',
1146                     'Heading-use-series-added-entry ',
1147                     'Heading-use-subject-added-entry',
1148                     'Host-item',
1149                     'id-other',
1150                     'Illustration-code',
1151                     'Index-term-genre',
1152                     'Index-term-uncontrolled',
1153                     'ISBN',
1154                     'isbn',
1155                     'ISSN',
1156                     'issn',
1157                     'itemtype',
1158                     'kw',
1159                     'Koha-Auth-Number',
1160                     'l-format',
1161                     'language',
1162                     'language-original',
1163                     'lc-card',
1164                     'LC-card-number',
1165                     'lcn',
1166                     'lex',
1167                     'llength',
1168                     'ln',
1169                     'ln-audio',
1170                     'ln-subtitle',
1171                     'Local-classification',
1172                     'Local-number',
1173                     'Match-heading',
1174                     'Match-heading-see-from',
1175                     'Material-type',
1176                     'mc-itemtype',
1177                     'mc-rtype',
1178                     'mus',
1179                     'name',
1180                     'Music-number',
1181                     'Name-geographic',
1182                     'Name-geographic-heading',
1183                     'Name-geographic-see',
1184                     'Name-geographic-seealso',
1185                     'nb',
1186                     'Note',
1187                     'notes',
1188                     'ns',
1189                     'nt',
1190                     'pb',
1191                     'Personal-name',
1192                     'Personal-name-heading',
1193                     'Personal-name-see',
1194                     'Personal-name-seealso',
1195                     'pl',
1196                     'Place-publication',
1197                     'pn',
1198                     'popularity',
1199                     'pubdate',
1200                     'Publisher',
1201                     'Record-control-number',
1202                     'rcn',
1203                     'Record-type',
1204                     'rtype',
1205                     'se',
1206                     'See',
1207                     'See-also',
1208                     'sn',
1209                     'Stock-number',
1210                     'su',
1211                     'Subject',
1212                     'Subject-heading-thesaurus',
1213                     'Subject-name-personal',
1214                     'Subject-subdivision',
1215                     'Summary',
1216                     'Suppress',
1217                     'su-geo',
1218                     'su-na',
1219                     'su-to',
1220                     'su-ut',
1221                     'ut',
1222                     'Term-genre-form',
1223                     'Term-genre-form-heading',
1224                     'Term-genre-form-see',
1225                     'Term-genre-form-seealso',
1226                     'ti',
1227                     'Title',
1228                     'Title-cover',
1229                     'Title-series',
1230                     'Title-uniform',
1231                     'Title-uniform-heading',
1232                     'Title-uniform-see',
1233                     'Title-uniform-seealso',
1234                     'totalissues',
1235                     'yr',
1236
1237                     # items indexes
1238                     'acqsource',
1239                     'barcode',
1240                     'bc',
1241                     'branch',
1242                     'ccode',
1243                     'classification-source',
1244                     'cn-sort',
1245                     'coded-location-qualifier',
1246                     'copynumber',
1247                     'damaged',
1248                     'datelastborrowed',
1249                     'datelastseen',
1250                     'holdingbranch',
1251                     'homebranch',
1252                     'issues',
1253                     'item',
1254                     'itemnumber',
1255                     'itype',
1256                     'Local-classification',
1257                     'location',
1258                     'lost',
1259                     'materials-specified',
1260                     'mc-ccode',
1261                     'mc-itype',
1262                     'mc-loc',
1263                     'notforloan',
1264                     'Number-local-acquisition',
1265                     'onloan',
1266                     'price',
1267                     'renewals',
1268                     'replacementprice',
1269                     'replacementpricedate',
1270                     'reserves',
1271                     'restricted',
1272                     'stack',
1273                     'stocknumber',
1274                     'inv',
1275                     'uri',
1276                     'withdrawn',
1277
1278                     # subject related
1279                   );
1280
1281     return \@indexes;
1282 }
1283
1284 =head2 _handle_exploding_index
1285
1286     my $query = _handle_exploding_index($index, $term)
1287
1288 Callback routine to generate the search for "exploding" indexes (i.e.
1289 those indexes which are turned into multiple or-connected searches based
1290 on authority data).
1291
1292 =cut
1293
1294 sub _handle_exploding_index {
1295     my ($QParser, $filter, $params, $negate, $server) = @_;
1296     my $index = $filter;
1297     my $term = join(' ', @$params);
1298
1299     return unless ($index =~ m/(su-br|su-na|su-rl)/ && $term);
1300
1301     my $marcflavour = C4::Context->preference('marcflavour');
1302
1303     my $codesubfield = $marcflavour eq 'UNIMARC' ? '5' : 'w';
1304     my $wantedcodes = '';
1305     my @subqueries = ( "\@attr 1=Subject \@attr 4=1 \"$term\"");
1306     my ($error, $results, $total_hits) = SimpleSearch( "he:$term", undef, undef, [ "authorityserver" ] );
1307     foreach my $auth (@$results) {
1308         my $record = MARC::Record->new_from_usmarc($auth);
1309         my @references = $record->field('5..');
1310         if (@references) {
1311             if ($index eq 'su-br') {
1312                 $wantedcodes = 'g';
1313             } elsif ($index eq 'su-na') {
1314                 $wantedcodes = 'h';
1315             } elsif ($index eq 'su-rl') {
1316                 $wantedcodes = '';
1317             }
1318             foreach my $reference (@references) {
1319                 my $codes = $reference->subfield($codesubfield);
1320                 push @subqueries, '@attr 1=Subject @attr 4=1 "' . $reference->as_string('abcdefghijlmnopqrstuvxyz') . '"' if (($codes && $codes eq $wantedcodes) || !$wantedcodes);
1321             }
1322         }
1323     }
1324     my $query = ' @or ' x (scalar(@subqueries) - 1) . join(' ', @subqueries);
1325     return $query;
1326 }
1327
1328 =head2 parseQuery
1329
1330     ( $operators, $operands, $indexes, $limits,
1331       $sort_by, $scan, $lang ) =
1332             buildQuery ( $operators, $operands, $indexes, $limits, $sort_by, $scan, $lang);
1333
1334 Shim function to ease the transition from buildQuery to a new QueryParser.
1335 This function is called at the beginning of buildQuery, and modifies
1336 buildQuery's input. If it can handle the input, it returns a query that
1337 buildQuery will not try to parse.
1338 =cut
1339
1340 sub parseQuery {
1341     my ( $operators, $operands, $indexes, $limits, $sort_by, $scan, $lang) = @_;
1342
1343     my @operators = $operators ? @$operators : ();
1344     my @indexes   = $indexes   ? @$indexes   : ();
1345     my @operands  = $operands  ? @$operands  : ();
1346     my @limits    = $limits    ? @$limits    : ();
1347     my @sort_by   = $sort_by   ? @$sort_by   : ();
1348
1349     my $query = $operands[0];
1350     my $index;
1351     my $term;
1352     my $query_desc;
1353
1354     my $QParser;
1355     $QParser = C4::Context->queryparser if (C4::Context->preference('UseQueryParser') || $query =~ s/^qp=//);
1356     undef $QParser if ($query =~ m/^(ccl=|pqf=|cql=)/ || grep (/\w,\w|\w=\w/, @operands, @indexes) );
1357     undef $QParser if (scalar @limits > 0);
1358
1359     if ($QParser)
1360     {
1361         $QParser->custom_data->{'QueryAutoTruncate'} = C4::Context->preference('QueryAutoTruncate');
1362         $query = '';
1363         for ( my $ii = 0 ; $ii <= @operands ; $ii++ ) {
1364             next unless $operands[$ii];
1365             $query .= $operators[ $ii - 1 ] eq 'or' ? ' || ' : ' && '
1366               if ($query);
1367             if ( $operands[$ii] =~ /^[^"]\W*[-|_\w]*:\w.*[^"]$/ ) {
1368                 $query .= $operands[$ii];
1369             }
1370             elsif ( $indexes[$ii] =~ m/su-/ ) {
1371                 $query .= $indexes[$ii] . '(' . $operands[$ii] . ')';
1372             }
1373             else {
1374                 $query .=
1375                   ( $indexes[$ii] ? "$indexes[$ii]:" : '' ) . $operands[$ii];
1376             }
1377         }
1378         foreach my $limit (@limits) {
1379         }
1380         if ( scalar(@sort_by) > 0 ) {
1381             my $modifier_re =
1382               '#(' . join( '|', @{ $QParser->modifiers } ) . ')';
1383             $query =~ s/$modifier_re//g;
1384             foreach my $modifier (@sort_by) {
1385                 $query .= " #$modifier";
1386             }
1387         }
1388
1389         $query_desc = $query;
1390         $query_desc =~ s/\s+/ /g;
1391         if ( C4::Context->preference("QueryWeightFields") ) {
1392         }
1393         $QParser->add_bib1_filter_map( 'su-br' => 'biblioserver' =>
1394               { 'target_syntax_callback' => \&_handle_exploding_index } );
1395         $QParser->add_bib1_filter_map( 'su-na' => 'biblioserver' =>
1396               { 'target_syntax_callback' => \&_handle_exploding_index } );
1397         $QParser->add_bib1_filter_map( 'su-rl' => 'biblioserver' =>
1398               { 'target_syntax_callback' => \&_handle_exploding_index } );
1399         $QParser->parse($query);
1400         $operands[0] = "pqf=" . $QParser->target_syntax('biblioserver');
1401     }
1402     else {
1403         require Koha::QueryParser::Driver::PQF;
1404         my $modifier_re = '#(' . join( '|', @{Koha::QueryParser::Driver::PQF->modifiers}) . ')';
1405         s/$modifier_re//g for @operands;
1406     }
1407
1408     return ( $operators, \@operands, $indexes, $limits, $sort_by, $scan, $lang, $query_desc);
1409 }
1410
1411 =head2 buildQuery
1412
1413 ( $error, $query,
1414 $simple_query, $query_cgi,
1415 $query_desc, $limit,
1416 $limit_cgi, $limit_desc,
1417 $stopwords_removed, $query_type ) = buildQuery ( $operators, $operands, $indexes, $limits, $sort_by, $scan, $lang);
1418
1419 Build queries and limits in CCL, CGI, Human,
1420 handle truncation, stemming, field weighting, stopwords, fuzziness, etc.
1421
1422 See verbose embedded documentation.
1423
1424
1425 =cut
1426
1427 sub buildQuery {
1428     my ( $operators, $operands, $indexes, $limits, $sort_by, $scan, $lang) = @_;
1429
1430     warn "---------\nEnter buildQuery\n---------" if $DEBUG;
1431
1432     my $query_desc;
1433     ( $operators, $operands, $indexes, $limits, $sort_by, $scan, $lang, $query_desc) = parseQuery($operators, $operands, $indexes, $limits, $sort_by, $scan, $lang);
1434
1435     # dereference
1436     my @operators = $operators ? @$operators : ();
1437     my @indexes   = $indexes   ? @$indexes   : ();
1438     my @operands  = $operands  ? @$operands  : ();
1439     my @limits    = $limits    ? @$limits    : ();
1440     my @sort_by   = $sort_by   ? @$sort_by   : ();
1441
1442     my $stemming         = C4::Context->preference("QueryStemming")        || 0;
1443     my $auto_truncation  = C4::Context->preference("QueryAutoTruncate")    || 0;
1444     my $weight_fields    = C4::Context->preference("QueryWeightFields")    || 0;
1445     my $fuzzy_enabled    = C4::Context->preference("QueryFuzzy")           || 0;
1446     my $remove_stopwords = C4::Context->preference("QueryRemoveStopwords") || 0;
1447
1448     my $query        = $operands[0];
1449     my $simple_query = $operands[0];
1450
1451     # initialize the variables we're passing back
1452     my $query_cgi;
1453     my $query_type;
1454
1455     my $limit;
1456     my $limit_cgi;
1457     my $limit_desc;
1458
1459     my $stopwords_removed;    # flag to determine if stopwords have been removed
1460
1461     my $cclq       = 0;
1462     my $cclindexes = getIndexes();
1463     if ( $query !~ /\s*(ccl=|pqf=|cql=)/ ) {
1464         while ( !$cclq && $query =~ /(?:^|\W)([\w-]+)(,[\w-]+)*[:=]/g ) {
1465             my $dx = lc($1);
1466             $cclq = grep { lc($_) eq $dx } @$cclindexes;
1467         }
1468         $query = "ccl=$query" if $cclq;
1469     }
1470
1471 # for handling ccl, cql, pqf queries in diagnostic mode, skip the rest of the steps
1472 # DIAGNOSTIC ONLY!!
1473     if ( $query =~ /^ccl=/ ) {
1474         my $q=$';
1475         # This is needed otherwise ccl= and &limit won't work together, and
1476         # this happens when selecting a subject on the opac-detail page
1477         @limits = grep {!/^$/} @limits;
1478         if ( @limits ) {
1479             $q .= ' and '.join(' and ', @limits);
1480         }
1481         return ( undef, $q, $q, "q=ccl=".uri_escape_utf8($q), $q, '', '', '', '', 'ccl' );
1482     }
1483     if ( $query =~ /^cql=/ ) {
1484         return ( undef, $', $', "q=cql=".uri_escape_utf8($'), $', '', '', '', '', 'cql' );
1485     }
1486     if ( $query =~ /^pqf=/ ) {
1487         if ($query_desc) {
1488             $query_cgi = "q=".uri_escape_utf8($query_desc);
1489         } else {
1490             $query_desc = $';
1491             $query_cgi = "q=pqf=".uri_escape_utf8($');
1492         }
1493         return ( undef, $', $', $query_cgi, $query_desc, '', '', '', '', 'pqf' );
1494     }
1495
1496     # pass nested queries directly
1497     # FIXME: need better handling of some of these variables in this case
1498     # Nested queries aren't handled well and this implementation is flawed and causes users to be
1499     # unable to search for anything containing () commenting out, will be rewritten for 3.4.0
1500 #    if ( $query =~ /(\(|\))/ ) {
1501 #        return (
1502 #            undef,              $query, $simple_query, $query_cgi,
1503 #            $query,             $limit, $limit_cgi,    $limit_desc,
1504 #            $stopwords_removed, 'ccl'
1505 #        );
1506 #    }
1507
1508 # Form-based queries are non-nested and fixed depth, so we can easily modify the incoming
1509 # query operands and indexes and add stemming, truncation, field weighting, etc.
1510 # Once we do so, we'll end up with a value in $query, just like if we had an
1511 # incoming $query from the user
1512     else {
1513         $query = ""
1514           ; # clear it out so we can populate properly with field-weighted, stemmed, etc. query
1515         my $previous_operand
1516           ;    # a flag used to keep track if there was a previous query
1517                # if there was, we can apply the current operator
1518                # for every operand
1519         for ( my $i = 0 ; $i <= @operands ; $i++ ) {
1520
1521             # COMBINE OPERANDS, INDEXES AND OPERATORS
1522             if ( $operands[$i] ) {
1523                 $operands[$i]=~s/^\s+//;
1524
1525               # A flag to determine whether or not to add the index to the query
1526                 my $indexes_set;
1527
1528 # If the user is sophisticated enough to specify an index, turn off field weighting, stemming, and stopword handling
1529                 if ( $operands[$i] =~ /\w(:|=)/ || $scan ) {
1530                     $weight_fields    = 0;
1531                     $stemming         = 0;
1532                     $remove_stopwords = 0;
1533                 } else {
1534                     $operands[$i] =~ s/\?/{?}/g; # need to escape question marks
1535                 }
1536                 my $operand = $operands[$i];
1537                 my $index   = $indexes[$i];
1538
1539                 # Add index-specific attributes
1540
1541                 #Afaik, this 'yr' condition will only ever be met in the staff client advanced search
1542                 #for "Publication date", since typing 'yr:YYYY' into the search box produces a CCL query,
1543                 #which is processed higher up in this sub. Other than that, year searches are typically
1544                 #handled as limits which are not processed her either.
1545
1546                 # Date of Publication
1547                 if ( $index =~ /yr/ ) {
1548                     #weight_fields/relevance search causes errors with date ranges
1549                     #In the case of YYYY-, it will only return records with a 'yr' of YYYY (not the range)
1550                     #In the case of YYYY-YYYY, it will return no results
1551                                         $stemming = $auto_truncation = $weight_fields = $fuzzy_enabled = $remove_stopwords = 0;
1552                 }
1553
1554                 # Date of Acquisition
1555                 elsif ( $index =~ /acqdate/ ) {
1556                     #stemming and auto_truncation would have zero impact since it already is YYYY-MM-DD format
1557                     #Weight_fields probably SHOULD be turned OFF, otherwise you'll get records floating to the
1558                       #top of the results just because they have lots of item records matching that date.
1559                     #Fuzzy actually only applies during _build_weighted_query, and is reset there anyway, so
1560                       #irrelevant here
1561                     #remove_stopwords doesn't function anymore so is irrelevant
1562                                         $stemming = $auto_truncation = $weight_fields = $fuzzy_enabled = $remove_stopwords = 0;
1563                 }
1564                 # ISBN,ISSN,Standard Number, don't need special treatment
1565                 elsif ( $index eq 'nb' || $index eq 'ns' ) {
1566                     (
1567                         $stemming,      $auto_truncation,
1568                         $weight_fields, $fuzzy_enabled,
1569                         $remove_stopwords
1570                     ) = ( 0, 0, 0, 0, 0 );
1571
1572                 }
1573
1574                 if(not $index){
1575                     $index = 'kw';
1576                 }
1577
1578                 # Set default structure attribute (word list)
1579                 my $struct_attr = q{};
1580                 unless ( $indexes_set || !$index || $index =~ /,(st-|phr|ext|wrdl)/ || $index =~ /^(nb|ns)$/ ) {
1581                     $struct_attr = ",wrdl";
1582                 }
1583
1584                 # Some helpful index variants
1585                 my $index_plus       = $index . $struct_attr . ':';
1586                 my $index_plus_comma = $index . $struct_attr . ',';
1587
1588                 # Remove Stopwords
1589                 if ($remove_stopwords) {
1590                     ( $operand, $stopwords_removed ) =
1591                       _remove_stopwords( $operand, $index );
1592                     warn "OPERAND w/out STOPWORDS: >$operand<" if $DEBUG;
1593                     warn "REMOVED STOPWORDS: @$stopwords_removed"
1594                       if ( $stopwords_removed && $DEBUG );
1595                 }
1596
1597                 if ($auto_truncation){
1598                         unless ( $index =~ /,(st-|phr|ext)/ ) {
1599                                                 #FIXME only valid with LTR scripts
1600                                                 $operand=join(" ",map{
1601                                                                                         (index($_,"*")>0?"$_":"$_*")
1602                                                                                          }split (/\s+/,$operand));
1603                                                 warn $operand if $DEBUG;
1604                                         }
1605                                 }
1606
1607                 # Detect Truncation
1608                 my $truncated_operand;
1609                 my( $nontruncated, $righttruncated, $lefttruncated,
1610                     $rightlefttruncated, $regexpr
1611                 ) = _detect_truncation( $operand, $index );
1612                 warn
1613 "TRUNCATION: NON:>@$nontruncated< RIGHT:>@$righttruncated< LEFT:>@$lefttruncated< RIGHTLEFT:>@$rightlefttruncated< REGEX:>@$regexpr<"
1614                   if $DEBUG;
1615
1616                 # Apply Truncation
1617                 if (
1618                     scalar(@$righttruncated) + scalar(@$lefttruncated) +
1619                     scalar(@$rightlefttruncated) > 0 )
1620                 {
1621
1622                # Don't field weight or add the index to the query, we do it here
1623                     $indexes_set = 1;
1624                     undef $weight_fields;
1625                     my $previous_truncation_operand;
1626                     if (scalar @$nontruncated) {
1627                         $truncated_operand .= "$index_plus @$nontruncated ";
1628                         $previous_truncation_operand = 1;
1629                     }
1630                     if (scalar @$righttruncated) {
1631                         $truncated_operand .= "and " if $previous_truncation_operand;
1632                         $truncated_operand .= $index_plus_comma . "rtrn:@$righttruncated ";
1633                         $previous_truncation_operand = 1;
1634                     }
1635                     if (scalar @$lefttruncated) {
1636                         $truncated_operand .= "and " if $previous_truncation_operand;
1637                         $truncated_operand .= $index_plus_comma . "ltrn:@$lefttruncated ";
1638                         $previous_truncation_operand = 1;
1639                     }
1640                     if (scalar @$rightlefttruncated) {
1641                         $truncated_operand .= "and " if $previous_truncation_operand;
1642                         $truncated_operand .= $index_plus_comma . "rltrn:@$rightlefttruncated ";
1643                         $previous_truncation_operand = 1;
1644                     }
1645                 }
1646                 $operand = $truncated_operand if $truncated_operand;
1647                 warn "TRUNCATED OPERAND: >$truncated_operand<" if $DEBUG;
1648
1649                 # Handle Stemming
1650                 my $stemmed_operand;
1651                 $stemmed_operand = _build_stemmed_operand($operand, $lang)
1652                                                                                 if $stemming;
1653
1654                 warn "STEMMED OPERAND: >$stemmed_operand<" if $DEBUG;
1655
1656                 # Handle Field Weighting
1657                 my $weighted_operand;
1658                 if ($weight_fields) {
1659                     $weighted_operand = _build_weighted_query( $operand, $stemmed_operand, $index );
1660                     $operand = $weighted_operand;
1661                     $indexes_set = 1;
1662                 }
1663
1664                 warn "FIELD WEIGHTED OPERAND: >$weighted_operand<" if $DEBUG;
1665
1666                 ($query,$query_cgi,$query_desc,$previous_operand) = _build_initial_query({
1667                     query => $query,
1668                     query_cgi => $query_cgi,
1669                     query_desc => $query_desc,
1670                     operator => ($operators[ $i - 1 ]) ? $operators[ $i - 1 ] : '',
1671                     parsed_operand => $operand,
1672                     original_operand => ($operands[$i]) ? $operands[$i] : '',
1673                     index => $index,
1674                     index_plus => $index_plus,
1675                     indexes_set => $indexes_set,
1676                     previous_operand => $previous_operand,
1677                 });
1678
1679             }    #/if $operands
1680         }    # /for
1681     }
1682     warn "QUERY BEFORE LIMITS: >$query<" if $DEBUG;
1683
1684     # add limits
1685     my %group_OR_limits;
1686     my $availability_limit;
1687     foreach my $this_limit (@limits) {
1688         next unless $this_limit;
1689         if ( $this_limit =~ /available/ ) {
1690 #
1691 ## 'available' is defined as (items.onloan is NULL) and (items.itemlost = 0)
1692 ## In English:
1693 ## all records not indexed in the onloan register (zebra) and all records with a value of lost equal to 0
1694             $availability_limit .=
1695 "( ( allrecords,AlwaysMatches='' not onloan,AlwaysMatches='') and (lost,st-numeric=0) )"; #or ( allrecords,AlwaysMatches='' not lost,AlwaysMatches='')) )";
1696             $limit_cgi  .= "&limit=available";
1697             $limit_desc .= "";
1698         }
1699
1700         # group_OR_limits, prefixed by mc-
1701         # OR every member of the group
1702         elsif ( $this_limit =~ /mc/ ) {
1703             my ($k,$v) = split(/:/, $this_limit,2);
1704             if ( $k !~ /mc-i(tem)?type/ ) {
1705                 # in case the mc-ccode value has complicating chars like ()'s inside it we wrap in quotes
1706                 $this_limit =~ tr/"//d;
1707                 $this_limit = $k.":\"".$v."\"";
1708             }
1709
1710             $group_OR_limits{$k} .= " or " if $group_OR_limits{$k};
1711             $limit_desc      .= " or " if $group_OR_limits{$k};
1712             $group_OR_limits{$k} .= "$this_limit";
1713             $limit_cgi       .= "&limit=" . uri_escape_utf8($this_limit);
1714             $limit_desc      .= " $this_limit";
1715         }
1716
1717         # Regular old limits
1718         else {
1719             $limit .= " and " if $limit || $query;
1720             $limit      .= "$this_limit";
1721             $limit_cgi  .= "&limit=" . uri_escape_utf8($this_limit);
1722             if ($this_limit =~ /^branch:(.+)/) {
1723                 my $branchcode = $1;
1724                 my $branchname = GetBranchName($branchcode);
1725                 if (defined $branchname) {
1726                     $limit_desc .= " branch:$branchname";
1727                 } else {
1728                     $limit_desc .= " $this_limit";
1729                 }
1730             } else {
1731                 $limit_desc .= " $this_limit";
1732             }
1733         }
1734     }
1735     foreach my $k (keys (%group_OR_limits)) {
1736         $limit .= " and " if ( $query || $limit );
1737         $limit .= "($group_OR_limits{$k})";
1738     }
1739     if ($availability_limit) {
1740         $limit .= " and " if ( $query || $limit );
1741         $limit .= "($availability_limit)";
1742     }
1743
1744     # Normalize the query and limit strings
1745     # This is flawed , means we can't search anything with : in it
1746     # if user wants to do ccl or cql, start the query with that
1747 #    $query =~ s/:/=/g;
1748     #NOTE: We use several several different regexps here as you can't have variable length lookback assertions
1749     $query =~ s/(?<=(ti|au|pb|su|an|kw|mc|nb|ns)):/=/g;
1750     $query =~ s/(?<=(wrdl)):/=/g;
1751     $query =~ s/(?<=(trn|phr)):/=/g;
1752     $query =~ s/(?<=(st-numeric)):/=/g;
1753     $query =~ s/(?<=(st-year)):/=/g;
1754     $query =~ s/(?<=(st-date-normalized)):/=/g;
1755     $limit =~ s/:/=/g;
1756     for ( $query, $query_desc, $limit, $limit_desc ) {
1757         s/  +/ /g;    # remove extra spaces
1758         s/^ //g;     # remove any beginning spaces
1759         s/ $//g;     # remove any ending spaces
1760         s/==/=/g;    # remove double == from query
1761     }
1762     $query_cgi =~ s/^&//; # remove unnecessary & from beginning of the query cgi
1763
1764     for ($query_cgi,$simple_query) {
1765         s/"//g;
1766     }
1767     # append the limit to the query
1768     $query .= " " . $limit;
1769
1770     # Warnings if DEBUG
1771     if ($DEBUG) {
1772         warn "QUERY:" . $query;
1773         warn "QUERY CGI:" . $query_cgi;
1774         warn "QUERY DESC:" . $query_desc;
1775         warn "LIMIT:" . $limit;
1776         warn "LIMIT CGI:" . $limit_cgi;
1777         warn "LIMIT DESC:" . $limit_desc;
1778         warn "---------\nLeave buildQuery\n---------";
1779     }
1780     return (
1781         undef,              $query, $simple_query, $query_cgi,
1782         $query_desc,        $limit, $limit_cgi,    $limit_desc,
1783         $stopwords_removed, $query_type
1784     );
1785 }
1786
1787 =head2 _build_initial_query
1788
1789   ($query, $query_cgi, $query_desc, $previous_operand) = _build_initial_query($initial_query_params);
1790
1791   Build a section of the initial query containing indexes, operators, and operands.
1792
1793 =cut
1794
1795 sub _build_initial_query {
1796     my ($params) = @_;
1797
1798     my $operator = "";
1799     if ($params->{previous_operand}){
1800         #If there is a previous operand, add a supplied operator or the default 'and'
1801         $operator = ($params->{operator}) ? " ".($params->{operator})." " : ' and ';
1802     }
1803
1804     #NOTE: indexes_set is typically set when doing truncation or field weighting
1805     my $operand = ($params->{indexes_set}) ? $params->{parsed_operand} : $params->{index_plus}.$params->{parsed_operand};
1806
1807     #e.g. "kw,wrdl:test"
1808     #e.g. " and kw,wrdl:test"
1809     $params->{query} .= $operator . $operand;
1810
1811     $params->{query_cgi} .= "&op=".uri_escape_utf8($operator) if $operator;
1812     $params->{query_cgi} .= "&idx=".uri_escape_utf8($params->{index}) if $params->{index};
1813     $params->{query_cgi} .= "&q=".uri_escape_utf8($params->{original_operand}) if $params->{original_operand};
1814
1815     #e.g. " and kw,wrdl: test"
1816     $params->{query_desc} .= $operator . $params->{index_plus} . " " . $params->{original_operand};
1817
1818     $params->{previous_operand} = 1 unless $params->{previous_operand}; #If there is no previous operand, mark this as one
1819
1820     return ($params->{query}, $params->{query_cgi}, $params->{query_desc}, $params->{previous_operand});
1821 }
1822
1823 =head2 searchResults
1824
1825   my @search_results = searchResults($search_context, $searchdesc, $hits,
1826                                      $results_per_page, $offset, $scan,
1827                                      @marcresults);
1828
1829 Format results in a form suitable for passing to the template
1830
1831 =cut
1832
1833 # IMO this subroutine is pretty messy still -- it's responsible for
1834 # building the HTML output for the template
1835 sub searchResults {
1836     my ( $search_context, $searchdesc, $hits, $results_per_page, $offset, $scan, $marcresults ) = @_;
1837     my $dbh = C4::Context->dbh;
1838     my @newresults;
1839
1840     require C4::Items;
1841
1842     $search_context = 'opac' if !$search_context || $search_context ne 'intranet';
1843     my ($is_opac, $hidelostitems);
1844     if ($search_context eq 'opac') {
1845         $hidelostitems = C4::Context->preference('hidelostitems');
1846         $is_opac       = 1;
1847     }
1848
1849     #Build branchnames hash
1850     #find branchname
1851     #get branch information.....
1852     my %branches;
1853     my $bsth =$dbh->prepare("SELECT branchcode,branchname FROM branches"); # FIXME : use C4::Branch::GetBranches
1854     $bsth->execute();
1855     while ( my $bdata = $bsth->fetchrow_hashref ) {
1856         $branches{ $bdata->{'branchcode'} } = $bdata->{'branchname'};
1857     }
1858 # FIXME - We build an authorised values hash here, using the default framework
1859 # though it is possible to have different authvals for different fws.
1860
1861     my $shelflocations =GetKohaAuthorisedValues('items.location','');
1862
1863     # get notforloan authorised value list (see $shelflocations  FIXME)
1864     my $notforloan_authorised_value = GetAuthValCode('items.notforloan','');
1865
1866     #Build itemtype hash
1867     #find itemtype & itemtype image
1868     my %itemtypes;
1869     $bsth =
1870       $dbh->prepare(
1871         "SELECT itemtype,description,imageurl,summary,notforloan FROM itemtypes"
1872       );
1873     $bsth->execute();
1874     while ( my $bdata = $bsth->fetchrow_hashref ) {
1875                 foreach (qw(description imageurl summary notforloan)) {
1876                 $itemtypes{ $bdata->{'itemtype'} }->{$_} = $bdata->{$_};
1877                 }
1878     }
1879
1880     #search item field code
1881     my ($itemtag, undef) = &GetMarcFromKohaField( "items.itemnumber", "" );
1882
1883     ## find column names of items related to MARC
1884     my $sth2 = $dbh->prepare("SHOW COLUMNS FROM items");
1885     $sth2->execute;
1886     my %subfieldstosearch;
1887     while ( ( my $column ) = $sth2->fetchrow ) {
1888         my ( $tagfield, $tagsubfield ) =
1889           &GetMarcFromKohaField( "items." . $column, "" );
1890         if ( defined $tagsubfield ) {
1891             $subfieldstosearch{$column} = $tagsubfield;
1892         }
1893     }
1894
1895     # handle which records to actually retrieve
1896     my $times;
1897     if ( $hits && $offset + $results_per_page <= $hits ) {
1898         $times = $offset + $results_per_page;
1899     }
1900     else {
1901         $times = $hits;  # FIXME: if $hits is undefined, why do we want to equal it?
1902     }
1903
1904     my $marcflavour = C4::Context->preference("marcflavour");
1905     # We get the biblionumber position in MARC
1906     my ($bibliotag,$bibliosubf)=GetMarcFromKohaField('biblio.biblionumber','');
1907
1908     # loop through all of the records we've retrieved
1909     for ( my $i = $offset ; $i <= $times - 1 ; $i++ ) {
1910
1911         my $marcrecord;
1912         if ($scan) {
1913             # For Scan searches we built USMARC data
1914             $marcrecord = MARC::Record->new_from_usmarc( $marcresults->[$i]);
1915         } else {
1916             # Normal search, render from Zebra's output
1917             $marcrecord = new_record_from_zebra(
1918                 'biblioserver',
1919                 $marcresults->[$i]
1920             );
1921
1922             if ( ! defined $marcrecord ) {
1923                 warn "ERROR DECODING RECORD - $@: " . $marcresults->[$i];
1924                 next;
1925             }
1926         }
1927
1928         my $fw = $scan
1929              ? undef
1930              : $bibliotag < 10
1931                ? GetFrameworkCode($marcrecord->field($bibliotag)->data)
1932                : GetFrameworkCode($marcrecord->subfield($bibliotag,$bibliosubf));
1933
1934         SetUTF8Flag($marcrecord);
1935         my $oldbiblio = TransformMarcToKoha( $dbh, $marcrecord, $fw );
1936         $oldbiblio->{subtitle} = GetRecordValue('subtitle', $marcrecord, $fw);
1937         $oldbiblio->{result_number} = $i + 1;
1938
1939         # add imageurl to itemtype if there is one
1940         $oldbiblio->{imageurl} = getitemtypeimagelocation( $search_context, $itemtypes{ $oldbiblio->{itemtype} }->{imageurl} );
1941
1942         $oldbiblio->{'authorised_value_images'}  = ($search_context eq 'opac' && C4::Context->preference('AuthorisedValueImages')) || ($search_context eq 'intranet' && C4::Context->preference('StaffAuthorisedValueImages')) ? C4::Items::get_authorised_value_images( C4::Biblio::get_biblio_authorised_values( $oldbiblio->{'biblionumber'}, $marcrecord ) ) : [];
1943                 $oldbiblio->{normalized_upc}  = GetNormalizedUPC(       $marcrecord,$marcflavour);
1944                 $oldbiblio->{normalized_ean}  = GetNormalizedEAN(       $marcrecord,$marcflavour);
1945                 $oldbiblio->{normalized_oclc} = GetNormalizedOCLCNumber($marcrecord,$marcflavour);
1946                 $oldbiblio->{normalized_isbn} = GetNormalizedISBN(undef,$marcrecord,$marcflavour);
1947                 $oldbiblio->{content_identifier_exists} = 1 if ($oldbiblio->{normalized_isbn} or $oldbiblio->{normalized_oclc} or $oldbiblio->{normalized_ean} or $oldbiblio->{normalized_upc});
1948
1949                 # edition information, if any
1950         $oldbiblio->{edition} = $oldbiblio->{editionstatement};
1951                 $oldbiblio->{description} = $itemtypes{ $oldbiblio->{itemtype} }->{description};
1952  # Build summary if there is one (the summary is defined in the itemtypes table)
1953  # FIXME: is this used anywhere, I think it can be commented out? -- JF
1954         if ( $itemtypes{ $oldbiblio->{itemtype} }->{summary} ) {
1955             my $summary = $itemtypes{ $oldbiblio->{itemtype} }->{summary};
1956             my @fields  = $marcrecord->fields();
1957
1958             my $newsummary;
1959             foreach my $line ( "$summary\n" =~ /(.*)\n/g ){
1960                 my $tags = {};
1961                 foreach my $tag ( $line =~ /\[(\d{3}[\w|\d])\]/ ) {
1962                     $tag =~ /(.{3})(.)/;
1963                     if($marcrecord->field($1)){
1964                         my @abc = $marcrecord->field($1)->subfield($2);
1965                         $tags->{$tag} = $#abc + 1 ;
1966                     }
1967                 }
1968
1969                 # We catch how many times to repeat this line
1970                 my $max = 0;
1971                 foreach my $tag (keys(%$tags)){
1972                     $max = $tags->{$tag} if($tags->{$tag} > $max);
1973                  }
1974
1975                 # we replace, and repeat each line
1976                 for (my $i = 0 ; $i < $max ; $i++){
1977                     my $newline = $line;
1978
1979                     foreach my $tag ( $newline =~ /\[(\d{3}[\w|\d])\]/g ) {
1980                         $tag =~ /(.{3})(.)/;
1981
1982                         if($marcrecord->field($1)){
1983                             my @repl = $marcrecord->field($1)->subfield($2);
1984                             my $subfieldvalue = $repl[$i];
1985                             $newline =~ s/\[$tag\]/$subfieldvalue/g;
1986                         }
1987                     }
1988                     $newsummary .= "$newline\n";
1989                 }
1990             }
1991
1992             $newsummary =~ s/\[(.*?)]//g;
1993             $newsummary =~ s/\n/<br\/>/g;
1994             $oldbiblio->{summary} = $newsummary;
1995         }
1996
1997         # Pull out the items fields
1998         my @fields = $marcrecord->field($itemtag);
1999         my $marcflavor = C4::Context->preference("marcflavour");
2000         # adding linked items that belong to host records
2001         my $analyticsfield = '773';
2002         if ($marcflavor eq 'MARC21' || $marcflavor eq 'NORMARC') {
2003             $analyticsfield = '773';
2004         } elsif ($marcflavor eq 'UNIMARC') {
2005             $analyticsfield = '461';
2006         }
2007         foreach my $hostfield ( $marcrecord->field($analyticsfield)) {
2008             my $hostbiblionumber = $hostfield->subfield("0");
2009             my $linkeditemnumber = $hostfield->subfield("9");
2010             if(!$hostbiblionumber eq undef){
2011                 my $hostbiblio = GetMarcBiblio($hostbiblionumber, 1);
2012                 my ($itemfield, undef) = GetMarcFromKohaField( 'items.itemnumber', GetFrameworkCode($hostbiblionumber) );
2013                 if(!$hostbiblio eq undef){
2014                     my @hostitems = $hostbiblio->field($itemfield);
2015                     foreach my $hostitem (@hostitems){
2016                         if ($hostitem->subfield("9") eq $linkeditemnumber){
2017                             my $linkeditem =$hostitem;
2018                             # append linked items if they exist
2019                             if (!$linkeditem eq undef){
2020                                 push (@fields, $linkeditem);}
2021                         }
2022                     }
2023                 }
2024             }
2025         }
2026
2027         # Setting item statuses for display
2028         my @available_items_loop;
2029         my @onloan_items_loop;
2030         my @other_items_loop;
2031
2032         my $available_items;
2033         my $onloan_items;
2034         my $other_items;
2035
2036         my $ordered_count         = 0;
2037         my $available_count       = 0;
2038         my $onloan_count          = 0;
2039         my $longoverdue_count     = 0;
2040         my $other_count           = 0;
2041         my $withdrawn_count        = 0;
2042         my $itemlost_count        = 0;
2043         my $hideatopac_count      = 0;
2044         my $itembinding_count     = 0;
2045         my $itemdamaged_count     = 0;
2046         my $item_in_transit_count = 0;
2047         my $can_place_holds       = 0;
2048         my $item_onhold_count     = 0;
2049         my $notforloan_count      = 0;
2050         my $items_count           = scalar(@fields);
2051         my $maxitems_pref = C4::Context->preference('maxItemsinSearchResults');
2052         my $maxitems = $maxitems_pref ? $maxitems_pref - 1 : 1;
2053         my @hiddenitems; # hidden itemnumbers based on OpacHiddenItems syspref
2054
2055         # loop through every item
2056         foreach my $field (@fields) {
2057             my $item;
2058
2059             # populate the items hash
2060             foreach my $code ( keys %subfieldstosearch ) {
2061                 $item->{$code} = $field->subfield( $subfieldstosearch{$code} );
2062             }
2063             $item->{description} = $itemtypes{ $item->{itype} }{description};
2064
2065                 # OPAC hidden items
2066             if ($is_opac) {
2067                 # hidden because lost
2068                 if ($hidelostitems && $item->{itemlost}) {
2069                     $hideatopac_count++;
2070                     next;
2071                 }
2072                 # hidden based on OpacHiddenItems syspref
2073                 my @hi = C4::Items::GetHiddenItemnumbers($item);
2074                 if (scalar @hi) {
2075                     push @hiddenitems, @hi;
2076                     $hideatopac_count++;
2077                     next;
2078                 }
2079             }
2080
2081             my $hbranch     = C4::Context->preference('StaffSearchResultsDisplayBranch');
2082             my $otherbranch = $hbranch eq 'homebranch' ? 'holdingbranch' : 'homebranch';
2083
2084             # set item's branch name, use HomeOrHoldingBranch syspref first, fall back to the other one
2085             if ($item->{$hbranch}) {
2086                 $item->{'branchname'} = $branches{$item->{$hbranch}};
2087             }
2088             elsif ($item->{$otherbranch}) {     # Last resort
2089                 $item->{'branchname'} = $branches{$item->{$otherbranch}};
2090             }
2091
2092                         my $prefix = $item->{$hbranch} . '--' . $item->{location} . $item->{itype} . $item->{itemcallnumber};
2093 # For each grouping of items (onloan, available, unavailable), we build a key to store relevant info about that item
2094             my $userenv = C4::Context->userenv;
2095             if ( $item->{onloan} && !(C4::Members::GetHideLostItemsPreference($userenv->{'number'}) && $item->{itemlost}) ) {
2096                 $onloan_count++;
2097                                 my $key = $prefix . $item->{onloan} . $item->{barcode};
2098                                 $onloan_items->{$key}->{due_date} = format_date($item->{onloan});
2099                                 $onloan_items->{$key}->{count}++ if $item->{$hbranch};
2100                                 $onloan_items->{$key}->{branchname} = $item->{branchname};
2101                                 $onloan_items->{$key}->{location} = $shelflocations->{ $item->{location} };
2102                                 $onloan_items->{$key}->{itemcallnumber} = $item->{itemcallnumber};
2103                                 $onloan_items->{$key}->{description} = $item->{description};
2104                                 $onloan_items->{$key}->{imageurl} = getitemtypeimagelocation( $search_context, $itemtypes{ $item->{itype} }->{imageurl} );
2105                 # if something's checked out and lost, mark it as 'long overdue'
2106                 if ( $item->{itemlost} ) {
2107                     $onloan_items->{$prefix}->{longoverdue}++;
2108                     $longoverdue_count++;
2109                 } else {        # can place holds as long as item isn't lost
2110                     $can_place_holds = 1;
2111                 }
2112             }
2113
2114          # items not on loan, but still unavailable ( lost, withdrawn, damaged )
2115             else {
2116
2117                 # item is on order
2118                 if ( $item->{notforloan} < 0 ) {
2119                     $ordered_count++;
2120                 } elsif ( $item->{notforloan} > 0 ) {
2121                     $notforloan_count++;
2122                 }
2123
2124                 # is item in transit?
2125                 my $transfertwhen = '';
2126                 my ($transfertfrom, $transfertto);
2127
2128                 # is item on the reserve shelf?
2129                 my $reservestatus = '';
2130
2131                 unless ($item->{withdrawn}
2132                         || $item->{itemlost}
2133                         || $item->{damaged}
2134                         || $item->{notforloan}
2135                         || $items_count > 20) {
2136
2137                     # A couple heuristics to limit how many times
2138                     # we query the database for item transfer information, sacrificing
2139                     # accuracy in some cases for speed;
2140                     #
2141                     # 1. don't query if item has one of the other statuses
2142                     # 2. don't check transit status if the bib has
2143                     #    more than 20 items
2144                     #
2145                     # FIXME: to avoid having the query the database like this, and to make
2146                     #        the in transit status count as unavailable for search limiting,
2147                     #        should map transit status to record indexed in Zebra.
2148                     #
2149                     ($transfertwhen, $transfertfrom, $transfertto) = C4::Circulation::GetTransfers($item->{itemnumber});
2150                     $reservestatus = C4::Reserves::GetReserveStatus( $item->{itemnumber} );
2151                 }
2152
2153                 # item is withdrawn, lost, damaged, not for loan, reserved or in transit
2154                 if (   $item->{withdrawn}
2155                     || $item->{itemlost}
2156                     || $item->{damaged}
2157                     || $item->{notforloan}
2158                     || $reservestatus eq 'Waiting'
2159                     || ($transfertwhen ne ''))
2160                 {
2161                     $withdrawn_count++        if $item->{withdrawn};
2162                     $itemlost_count++        if $item->{itemlost};
2163                     $itemdamaged_count++     if $item->{damaged};
2164                     $item_in_transit_count++ if $transfertwhen ne '';
2165                     $item_onhold_count++     if $reservestatus eq 'Waiting';
2166                     $item->{status} = $item->{withdrawn} . "-" . $item->{itemlost} . "-" . $item->{damaged} . "-" . $item->{notforloan};
2167
2168                     # can place a hold on a item if
2169                     # not lost nor withdrawn
2170                     # not damaged unless AllowHoldsOnDamagedItems is true
2171                     # item is either for loan or on order (notforloan < 0)
2172                     $can_place_holds = 1
2173                       if (
2174                            !$item->{itemlost}
2175                         && !$item->{withdrawn}
2176                         && ( !$item->{damaged} || C4::Context->preference('AllowHoldsOnDamagedItems') )
2177                         && ( !$item->{notforloan} || $item->{notforloan} < 0 )
2178                       );
2179
2180                     $other_count++;
2181
2182                     my $key = $prefix . $item->{status};
2183                     foreach (qw(withdrawn itemlost damaged branchname itemcallnumber)) {
2184                         $other_items->{$key}->{$_} = $item->{$_};
2185                     }
2186                     $other_items->{$key}->{intransit} = ( $transfertwhen ne '' ) ? 1 : 0;
2187                     $other_items->{$key}->{onhold} = ($reservestatus) ? 1 : 0;
2188                     $other_items->{$key}->{notforloan} = GetAuthorisedValueDesc('','',$item->{notforloan},'','',$notforloan_authorised_value) if $notforloan_authorised_value and $item->{notforloan};
2189                                         $other_items->{$key}->{count}++ if $item->{$hbranch};
2190                                         $other_items->{$key}->{location} = $shelflocations->{ $item->{location} };
2191                                         $other_items->{$key}->{description} = $item->{description};
2192                                         $other_items->{$key}->{imageurl} = getitemtypeimagelocation( $search_context, $itemtypes{ $item->{itype} }->{imageurl} );
2193                 }
2194                 # item is available
2195                 else {
2196                     $can_place_holds = 1;
2197                     $available_count++;
2198                                         $available_items->{$prefix}->{count}++ if $item->{$hbranch};
2199                                         foreach (qw(branchname itemcallnumber description)) {
2200                         $available_items->{$prefix}->{$_} = $item->{$_};
2201                                         }
2202                                         $available_items->{$prefix}->{location} = $shelflocations->{ $item->{location} };
2203                                         $available_items->{$prefix}->{imageurl} = getitemtypeimagelocation( $search_context, $itemtypes{ $item->{itype} }->{imageurl} );
2204                 }
2205             }
2206         }    # notforloan, item level and biblioitem level
2207
2208         # if all items are hidden, do not show the record
2209         if ($items_count > 0 && $hideatopac_count == $items_count) {
2210             next;
2211         }
2212
2213         my ( $availableitemscount, $onloanitemscount, $otheritemscount );
2214         for my $key ( sort keys %$onloan_items ) {
2215             (++$onloanitemscount > $maxitems) and last;
2216             push @onloan_items_loop, $onloan_items->{$key};
2217         }
2218         for my $key ( sort keys %$other_items ) {
2219             (++$otheritemscount > $maxitems) and last;
2220             push @other_items_loop, $other_items->{$key};
2221         }
2222         for my $key ( sort keys %$available_items ) {
2223             (++$availableitemscount > $maxitems) and last;
2224             push @available_items_loop, $available_items->{$key}
2225         }
2226
2227         # XSLT processing of some stuff
2228         my $interface = $search_context eq 'opac' ? 'OPAC' : '';
2229         if (!$scan && C4::Context->preference($interface . "XSLTResultsDisplay")) {
2230             $oldbiblio->{XSLTResultsRecord} = XSLTParse4Display($oldbiblio->{biblionumber}, $marcrecord, $interface."XSLTResultsDisplay", 1, \@hiddenitems);
2231         # the last parameter tells Koha to clean up the problematic ampersand entities that Zebra outputs
2232         }
2233
2234         # if biblio level itypes are used and itemtype is notforloan, it can't be reserved either
2235         if (!C4::Context->preference("item-level_itypes")) {
2236             if ($itemtypes{ $oldbiblio->{itemtype} }->{notforloan}) {
2237                 $can_place_holds = 0;
2238             }
2239         }
2240         $oldbiblio->{norequests} = 1 unless $can_place_holds;
2241         $oldbiblio->{itemsplural}          = 1 if $items_count > 1;
2242         $oldbiblio->{items_count}          = $items_count;
2243         $oldbiblio->{available_items_loop} = \@available_items_loop;
2244         $oldbiblio->{onloan_items_loop}    = \@onloan_items_loop;
2245         $oldbiblio->{other_items_loop}     = \@other_items_loop;
2246         $oldbiblio->{availablecount}       = $available_count;
2247         $oldbiblio->{availableplural}      = 1 if $available_count > 1;
2248         $oldbiblio->{onloancount}          = $onloan_count;
2249         $oldbiblio->{onloanplural}         = 1 if $onloan_count > 1;
2250         $oldbiblio->{othercount}           = $other_count;
2251         $oldbiblio->{otherplural}          = 1 if $other_count > 1;
2252         $oldbiblio->{withdrawncount}        = $withdrawn_count;
2253         $oldbiblio->{itemlostcount}        = $itemlost_count;
2254         $oldbiblio->{damagedcount}         = $itemdamaged_count;
2255         $oldbiblio->{intransitcount}       = $item_in_transit_count;
2256         $oldbiblio->{onholdcount}          = $item_onhold_count;
2257         $oldbiblio->{orderedcount}         = $ordered_count;
2258         $oldbiblio->{notforloancount}      = $notforloan_count;
2259
2260         if (C4::Context->preference("AlternateHoldingsField") && $items_count == 0) {
2261             my $fieldspec = C4::Context->preference("AlternateHoldingsField");
2262             my $subfields = substr $fieldspec, 3;
2263             my $holdingsep = C4::Context->preference("AlternateHoldingsSeparator") || ' ';
2264             my @alternateholdingsinfo = ();
2265             my @holdingsfields = $marcrecord->field(substr $fieldspec, 0, 3);
2266             my $alternateholdingscount = 0;
2267
2268             for my $field (@holdingsfields) {
2269                 my %holding = ( holding => '' );
2270                 my $havesubfield = 0;
2271                 for my $subfield ($field->subfields()) {
2272                     if ((index $subfields, $$subfield[0]) >= 0) {
2273                         $holding{'holding'} .= $holdingsep if (length $holding{'holding'} > 0);
2274                         $holding{'holding'} .= $$subfield[1];
2275                         $havesubfield++;
2276                     }
2277                 }
2278                 if ($havesubfield) {
2279                     push(@alternateholdingsinfo, \%holding);
2280                     $alternateholdingscount++;
2281                 }
2282             }
2283
2284             $oldbiblio->{'ALTERNATEHOLDINGS'} = \@alternateholdingsinfo;
2285             $oldbiblio->{'alternateholdings_count'} = $alternateholdingscount;
2286         }
2287
2288         push( @newresults, $oldbiblio );
2289     }
2290
2291     return @newresults;
2292 }
2293
2294 =head2 SearchAcquisitions
2295     Search for acquisitions
2296 =cut
2297
2298 sub SearchAcquisitions{
2299     my ($datebegin, $dateend, $itemtypes,$criteria, $orderby) = @_;
2300
2301     my $dbh=C4::Context->dbh;
2302     # Variable initialization
2303     my $str=qq|
2304     SELECT marcxml
2305     FROM biblio
2306     LEFT JOIN biblioitems ON biblioitems.biblionumber=biblio.biblionumber
2307     LEFT JOIN items ON items.biblionumber=biblio.biblionumber
2308     WHERE dateaccessioned BETWEEN ? AND ?
2309     |;
2310
2311     my (@params,@loopcriteria);
2312
2313     push @params, $datebegin->output("iso");
2314     push @params, $dateend->output("iso");
2315
2316     if (scalar(@$itemtypes)>0 and $criteria ne "itemtype" ){
2317         if(C4::Context->preference("item-level_itypes")){
2318             $str .= "AND items.itype IN (?".( ',?' x scalar @$itemtypes - 1 ).") ";
2319         }else{
2320             $str .= "AND biblioitems.itemtype IN (?".( ',?' x scalar @$itemtypes - 1 ).") ";
2321         }
2322         push @params, @$itemtypes;
2323     }
2324
2325     if ($criteria =~/itemtype/){
2326         if(C4::Context->preference("item-level_itypes")){
2327             $str .= "AND items.itype=? ";
2328         }else{
2329             $str .= "AND biblioitems.itemtype=? ";
2330         }
2331
2332         if(scalar(@$itemtypes) == 0){
2333             my $itypes = GetItemTypes();
2334             for my $key (keys %$itypes){
2335                 push @$itemtypes, $key;
2336             }
2337         }
2338
2339         @loopcriteria= @$itemtypes;
2340     }elsif ($criteria=~/itemcallnumber/){
2341         $str .= "AND (items.itemcallnumber LIKE CONCAT(?,'%')
2342                  OR items.itemcallnumber is NULL
2343                  OR items.itemcallnumber = '')";
2344
2345         @loopcriteria = ("AA".."ZZ", "") unless (scalar(@loopcriteria)>0);
2346     }else {
2347         $str .= "AND biblio.title LIKE CONCAT(?,'%') ";
2348         @loopcriteria = ("A".."z") unless (scalar(@loopcriteria)>0);
2349     }
2350
2351     if ($orderby =~ /date_desc/){
2352         $str.=" ORDER BY dateaccessioned DESC";
2353     } else {
2354         $str.=" ORDER BY title";
2355     }
2356
2357     my $qdataacquisitions=$dbh->prepare($str);
2358
2359     my @loopacquisitions;
2360     foreach my $value(@loopcriteria){
2361         push @params,$value;
2362         my %cell;
2363         $cell{"title"}=$value;
2364         $cell{"titlecode"}=$value;
2365
2366         eval{$qdataacquisitions->execute(@params);};
2367
2368         if ($@){ warn "recentacquisitions Error :$@";}
2369         else {
2370             my @loopdata;
2371             while (my $data=$qdataacquisitions->fetchrow_hashref){
2372                 push @loopdata, {"summary"=>GetBiblioSummary( $data->{'marcxml'} ) };
2373             }
2374             $cell{"loopdata"}=\@loopdata;
2375         }
2376         push @loopacquisitions,\%cell if (scalar(@{$cell{loopdata}})>0);
2377         pop @params;
2378     }
2379     $qdataacquisitions->finish;
2380     return \@loopacquisitions;
2381 }
2382
2383 =head2 enabled_staff_search_views
2384
2385 %hash = enabled_staff_search_views()
2386
2387 This function returns a hash that contains three flags obtained from the system
2388 preferences, used to determine whether a particular staff search results view
2389 is enabled.
2390
2391 =over 2
2392
2393 =item C<Output arg:>
2394
2395     * $hash{can_view_MARC} is true only if the MARC view is enabled
2396     * $hash{can_view_ISBD} is true only if the ISBD view is enabled
2397     * $hash{can_view_labeledMARC} is true only if the Labeled MARC view is enabled
2398
2399 =item C<usage in the script:>
2400
2401 =back
2402
2403 $template->param ( C4::Search::enabled_staff_search_views );
2404
2405 =cut
2406
2407 sub enabled_staff_search_views
2408 {
2409         return (
2410                 can_view_MARC                   => C4::Context->preference('viewMARC'),                 # 1 if the staff search allows the MARC view
2411                 can_view_ISBD                   => C4::Context->preference('viewISBD'),                 # 1 if the staff search allows the ISBD view
2412                 can_view_labeledMARC    => C4::Context->preference('viewLabeledMARC'),  # 1 if the staff search allows the Labeled MARC view
2413         );
2414 }
2415
2416 sub PurgeSearchHistory{
2417     my ($pSearchhistory)=@_;
2418     my $dbh = C4::Context->dbh;
2419     my $sth = $dbh->prepare("DELETE FROM search_history WHERE time < DATE_SUB( NOW(), INTERVAL ? DAY )");
2420     $sth->execute($pSearchhistory) or die $dbh->errstr;
2421 }
2422
2423 =head2 z3950_search_args
2424
2425 $arrayref = z3950_search_args($matchpoints)
2426
2427 This function returns an array reference that contains the search parameters to be
2428 passed to the Z39.50 search script (z3950_search.pl). The array elements
2429 are hash refs whose keys are name and value, and whose values are the
2430 name of a search parameter, the value of that search parameter and the URL encoded
2431 value of that parameter.
2432
2433 The search parameter names are lccn, isbn, issn, title, author, dewey and subject.
2434
2435 The search parameter values are obtained from the bibliographic record whose
2436 data is in a hash reference in $matchpoints, as returned by Biblio::GetBiblioData().
2437
2438 If $matchpoints is a scalar, it is assumed to be an unnamed query descriptor, e.g.
2439 a general purpose search argument. In this case, the returned array contains only
2440 entry: the key is 'title' and the value is derived from $matchpoints.
2441
2442 If a search parameter value is undefined or empty, it is not included in the returned
2443 array.
2444
2445 The returned array reference may be passed directly to the template parameters.
2446
2447 =over 2
2448
2449 =item C<Output arg:>
2450
2451     * $array containing hash refs as described above
2452
2453 =item C<usage in the script:>
2454
2455 =back
2456
2457 $data = Biblio::GetBiblioData($bibno);
2458 $template->param ( MYLOOP => C4::Search::z3950_search_args($data) )
2459
2460 *OR*
2461
2462 $template->param ( MYLOOP => C4::Search::z3950_search_args($searchscalar) )
2463
2464 =cut
2465
2466 sub z3950_search_args {
2467     my $bibrec = shift;
2468
2469     my $isbn_string = ref( $bibrec ) ? $bibrec->{title} : $bibrec;
2470     my $isbn = Business::ISBN->new( $isbn_string );
2471
2472     if (defined $isbn && $isbn->is_valid)
2473     {
2474         if ( ref($bibrec) ) {
2475             $bibrec->{isbn} = $isbn_string;
2476             $bibrec->{title} = undef;
2477         } else {
2478             $bibrec = { isbn => $isbn_string };
2479         }
2480     }
2481     else {
2482         $bibrec = { title => $bibrec } if !ref $bibrec;
2483     }
2484     my $array = [];
2485     for my $field (qw/ lccn isbn issn title author dewey subject /)
2486     {
2487         push @$array, { name => $field, value => $bibrec->{$field} }
2488           if defined $bibrec->{$field};
2489     }
2490     return $array;
2491 }
2492
2493 =head2 GetDistinctValues($field);
2494
2495 C<$field> is a reference to the fields array
2496
2497 =cut
2498
2499 sub GetDistinctValues {
2500     my ($fieldname,$string)=@_;
2501     # returns a reference to a hash of references to branches...
2502     if ($fieldname=~/\./){
2503                         my ($table,$column)=split /\./, $fieldname;
2504                         my $dbh = C4::Context->dbh;
2505                         warn "select DISTINCT($column) as value, count(*) as cnt from $table group by lib order by $column " if $DEBUG;
2506                         my $sth = $dbh->prepare("select DISTINCT($column) as value, count(*) as cnt from $table ".($string?" where $column like \"$string%\"":"")."group by value order by $column ");
2507                         $sth->execute;
2508                         my $elements=$sth->fetchall_arrayref({});
2509                         return $elements;
2510    }
2511    else {
2512                 $string||= qq("");
2513                 my @servers=qw<biblioserver authorityserver>;
2514                 my (@zconns,@results);
2515         for ( my $i = 0 ; $i < @servers ; $i++ ) {
2516                 $zconns[$i] = C4::Context->Zconn( $servers[$i], 1 );
2517                         $results[$i] =
2518                       $zconns[$i]->scan(
2519                         ZOOM::Query::CCL2RPN->new( qq"$fieldname $string", $zconns[$i])
2520                       );
2521                 }
2522                 # The big moment: asynchronously retrieve results from all servers
2523                 my @elements;
2524         _ZOOM_event_loop(
2525             \@zconns,
2526             \@results,
2527             sub {
2528                 my ( $i, $size ) = @_;
2529                 for ( my $j = 0 ; $j < $size ; $j++ ) {
2530                     my %hashscan;
2531                     @hashscan{qw(value cnt)} =
2532                       $results[ $i - 1 ]->display_term($j);
2533                     push @elements, \%hashscan;
2534                 }
2535             }
2536         );
2537                 return \@elements;
2538    }
2539 }
2540
2541 =head2 _ZOOM_event_loop
2542
2543     _ZOOM_event_loop(\@zconns, \@results, sub {
2544         my ( $i, $size ) = @_;
2545         ....
2546     } );
2547
2548 Processes a ZOOM event loop and passes control to a closure for
2549 processing the results, and destroying the resultsets.
2550
2551 =cut
2552
2553 sub _ZOOM_event_loop {
2554     my ($zconns, $results, $callback) = @_;
2555     while ( ( my $i = ZOOM::event( $zconns ) ) != 0 ) {
2556         my $ev = $zconns->[ $i - 1 ]->last_event();
2557         if ( $ev == ZOOM::Event::ZEND ) {
2558             next unless $results->[ $i - 1 ];
2559             my $size = $results->[ $i - 1 ]->size();
2560             if ( $size > 0 ) {
2561                 $callback->($i, $size);
2562             }
2563         }
2564     }
2565
2566     foreach my $result (@$results) {
2567         $result->destroy();
2568     }
2569 }
2570
2571 =head2 new_record_from_zebra
2572
2573 Given raw data from a Zebra result set, return a MARC::Record object
2574
2575 This helper function is needed to take into account all the involved
2576 system preferences and configuration variables to properly create the
2577 MARC::Record object.
2578
2579 If we are using GRS-1, then the raw data we get from Zebra should be USMARC
2580 data. If we are using DOM, then it has to be MARCXML.
2581
2582 =cut
2583
2584 sub new_record_from_zebra {
2585
2586     my $server   = shift;
2587     my $raw_data = shift;
2588     # Set the default indexing modes
2589     my $index_mode = ( $server eq 'biblioserver' )
2590                         ? C4::Context->config('zebra_bib_index_mode') // 'dom'
2591                         : C4::Context->config('zebra_auth_index_mode') // 'dom';
2592
2593     my $marc_record =  eval {
2594         if ( $index_mode eq 'dom' ) {
2595             MARC::Record->new_from_xml( $raw_data, 'UTF-8' );
2596         } else {
2597             MARC::Record->new_from_usmarc( $raw_data );
2598         }
2599     };
2600
2601     if ($@) {
2602         return;
2603     } else {
2604         return $marc_record;
2605     }
2606
2607 }
2608
2609 END { }    # module clean-up code here (global destructor)
2610
2611 1;
2612 __END__
2613
2614 =head1 AUTHOR
2615
2616 Koha Development Team <http://koha-community.org/>
2617
2618 =cut