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Member "koha-19.11.15/Koha/QueryParser/Driver/PQF/query_plan/node.pm" (23 Feb 2021, 4295 Bytes) of package /linux/misc/koha-19.11.15.tar.gz:


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    1 package Koha::QueryParser::Driver::PQF::query_plan::node;
    2 
    3 # This file is part of Koha.
    4 #
    5 # Copyright 2012 C & P Bibliography Services
    6 #
    7 # Koha is free software; you can redistribute it and/or modify it
    8 # under the terms of the GNU General Public License as published by
    9 # the Free Software Foundation; either version 3 of the License, or
   10 # (at your option) any later version.
   11 #
   12 # Koha is distributed in the hope that it will be useful, but
   13 # WITHOUT ANY WARRANTY; without even the implied warranty of
   14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
   15 # GNU General Public License for more details.
   16 #
   17 # You should have received a copy of the GNU General Public License
   18 # along with Koha; if not, see <http://www.gnu.org/licenses>.
   19 
   20 use base 'OpenILS::QueryParser::query_plan::node';
   21 
   22 use strict;
   23 use warnings;
   24 
   25 =head1 NAME
   26 
   27 Koha::QueryParser::Driver::PQF::query_plan::node - node subclass for PQF driver
   28 
   29 =head1 FUNCTIONS
   30 
   31 =head2 Koha::QueryParser::Driver::PQF::query_plan::node::target_syntax
   32 
   33     my $pqf = $node->target_syntax($server);
   34 
   35 Transforms an OpenILS::QueryParser::query_plan::node object into PQF. Do not use directly.
   36 
   37 =cut
   38 
   39 sub target_syntax {
   40     my ($self, $server) = @_;
   41     my $pqf = '';
   42     my $atom_content;
   43     my $atom_count = 0;
   44     my @fields = ();
   45     my $fieldobj;
   46     my $relbump;
   47 
   48     if (scalar(@{$self->fields})) {
   49         foreach my $field (@{$self->fields}) {
   50             $fieldobj = $self->plan->QueryParser->bib1_mapping_by_name('field', $self->classname, $field, $server);
   51             $relbump = $self->plan->QueryParser->bib1_mapping_by_name('relevance_bump', $self->classname, $field, $server);
   52             if ($relbump && defined $relbump->{'attr_string'}) {
   53                 $fieldobj->{'attr_string'} .= ' ' . $relbump->{'attr_string'};
   54             }
   55             push @fields, $fieldobj unless (!defined($fieldobj) || ($field eq $self->classname && @{$self->fields} > 1));
   56         }
   57     } else {
   58         $fieldobj = $self->plan->QueryParser->bib1_mapping_by_name('field', $self->classname, $self->classname, $server);
   59         my $relbumps = $self->plan->QueryParser->bib1_mapping_by_name('relevance_bump', $self->classname, '', $server);
   60         push @fields, $fieldobj;
   61         if ($relbumps) {
   62             foreach my $field (keys %$relbumps) {
   63                 $relbump = $relbumps->{$field};
   64                 $fieldobj = $self->plan->QueryParser->bib1_mapping_by_name('field', $relbump->{'classname'}, $relbump->{'field'}, $server);
   65                 $fieldobj->{'attr_string'} ||= '';
   66                 $fieldobj->{'attr_string'} .= ' ' . $relbump->{$server}{'attr_string'} if $relbump->{$server}{'attr_string'};
   67                 push @fields, $fieldobj;
   68             }
   69         }
   70     }
   71 
   72     if (@{$self->phrases}) {
   73         foreach my $phrase (@{$self->phrases}) {
   74             if ($phrase) {
   75                 $phrase =~ s/"/\\"/g;
   76                 $pqf .= ' @or ' x (scalar(@fields) - 1);
   77                 foreach my $attributes (@fields) {
   78                     $attributes->{'attr_string'} ||= '';
   79                     $pqf .= $attributes->{'attr_string'} . ($attributes->{'4'} ? '' : ' @attr 4=1') . ' "' . $phrase . '" ';
   80                 }
   81                 $atom_count++;
   82             }
   83         }
   84     } else {
   85         foreach my $atom (@{$self->query_atoms}) {
   86             if (ref($atom)) {
   87                 $atom_content = $atom->target_syntax($server);
   88                 if ($atom_content) {
   89                     $pqf .= ' @or ' x (scalar(@fields) - 1);
   90                     foreach my $attributes (@fields) {
   91                         $attributes->{'attr_string'} ||= '';
   92                         if ($self->plan->QueryParser->custom_data->{'QueryAutoTruncate'} || $atom->suffix eq '*') {
   93                             $attributes->{'attr_string'} .= ($attributes->{'5'} ? '' : ' @attr 5=1 ');
   94                         }
   95                         $pqf .= $attributes->{'attr_string'} . ($attributes->{'4'} ? '' : ' @attr 4=6 ') . $atom_content . ' ';
   96                     }
   97                     $atom_count++;
   98                 }
   99             }
  100         }
  101     }
  102     $pqf = (OpenILS::QueryParser::_util::default_joiner eq '|' ? ' @or ' : ' @and ') x ($atom_count - 1) . $pqf;
  103     return ($self->negate ? '@not @attr 1=_ALLRECORDS @attr 2=103 "" ' : '') . $pqf;
  104 }
  105 
  106 1;