107 lines
4.2 KiB
Perl
107 lines
4.2 KiB
Perl
package Koha::QueryParser::Driver::PQF::query_plan::node;
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# This file is part of Koha.
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#
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# Copyright 2012 C & P Bibliography Services
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#
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# Koha is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# Koha is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Koha; if not, see <http://www.gnu.org/licenses>.
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use base 'OpenILS::QueryParser::query_plan::node';
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use strict;
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use warnings;
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=head1 NAME
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Koha::QueryParser::Driver::PQF::query_plan::node - node subclass for PQF driver
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=head1 FUNCTIONS
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=head2 Koha::QueryParser::Driver::PQF::query_plan::node::target_syntax
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my $pqf = $node->target_syntax($server);
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Transforms an OpenILS::QueryParser::query_plan::node object into PQF. Do not use directly.
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=cut
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sub target_syntax {
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my ($self, $server) = @_;
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my $pqf = '';
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my $atom_content;
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my $atom_count = 0;
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my @fields = ();
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my $fieldobj;
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my $relbump;
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if (scalar(@{$self->fields})) {
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foreach my $field (@{$self->fields}) {
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$fieldobj = $self->plan->QueryParser->bib1_mapping_by_name('field', $self->classname, $field, $server);
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$relbump = $self->plan->QueryParser->bib1_mapping_by_name('relevance_bump', $self->classname, $field, $server);
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if ($relbump && defined $relbump->{'attr_string'}) {
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$fieldobj->{'attr_string'} .= ' ' . $relbump->{'attr_string'};
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}
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push @fields, $fieldobj unless (!defined($fieldobj) || ($field eq $self->classname && @{$self->fields} > 1));
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}
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} else {
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$fieldobj = $self->plan->QueryParser->bib1_mapping_by_name('field', $self->classname, $self->classname, $server);
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my $relbumps = $self->plan->QueryParser->bib1_mapping_by_name('relevance_bump', $self->classname, '', $server);
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push @fields, $fieldobj;
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if ($relbumps) {
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foreach my $field (keys %$relbumps) {
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$relbump = $relbumps->{$field};
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$fieldobj = $self->plan->QueryParser->bib1_mapping_by_name('field', $relbump->{'classname'}, $relbump->{'field'}, $server);
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$fieldobj->{'attr_string'} ||= '';
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$fieldobj->{'attr_string'} .= ' ' . $relbump->{$server}{'attr_string'} if $relbump->{$server}{'attr_string'};
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push @fields, $fieldobj;
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}
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}
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}
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if (@{$self->phrases}) {
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foreach my $phrase (@{$self->phrases}) {
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if ($phrase) {
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$phrase =~ s/"/\\"/g;
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$pqf .= ' @or ' x (scalar(@fields) - 1);
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foreach my $attributes (@fields) {
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$attributes->{'attr_string'} ||= '';
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$pqf .= $attributes->{'attr_string'} . ($attributes->{'4'} ? '' : ' @attr 4=1') . ' "' . $phrase . '" ';
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}
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$atom_count++;
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}
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}
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} else {
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foreach my $atom (@{$self->query_atoms}) {
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if (ref($atom)) {
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$atom_content = $atom->target_syntax($server);
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if ($atom_content) {
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$pqf .= ' @or ' x (scalar(@fields) - 1);
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foreach my $attributes (@fields) {
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$attributes->{'attr_string'} ||= '';
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if ($self->plan->QueryParser->custom_data->{'QueryAutoTruncate'} || $atom->suffix eq '*') {
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$attributes->{'attr_string'} .= ($attributes->{'5'} ? '' : ' @attr 5=1 ');
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}
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$pqf .= $attributes->{'attr_string'} . ($attributes->{'4'} ? '' : ' @attr 4=6 ') . $atom_content . ' ';
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}
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$atom_count++;
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}
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}
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}
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}
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$pqf = (OpenILS::QueryParser::_util::default_joiner eq '|' ? ' @or ' : ' @and ') x ($atom_count - 1) . $pqf;
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return ($self->negate ? '@not @attr 1=_ALLRECORDS @attr 2=103 "" ' : '') . $pqf;
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}
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1;
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