Koha/QueryParser/Driver/PQF/query_plan/filter.pm

   1 package Koha::QueryParser::Driver::PQF::query_plan::filter;
   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::filter';
  21
  22 use strict;
  23 use warnings;
  24
  25 =head1 NAME
  26
  27 Koha::QueryParser::Driver::PQF::query_plan::filter - filter subclass for PQF driver
  28
  29 =head1 FUNCTIONS
  30
  31 =head2 Koha::QueryParser::Driver::PQF::query_plan::filter::target_syntax
  32
  33     my $pqf = $filter->target_syntax($server);
  34
  35 Transforms an OpenILS::QueryParser::query_plan::filter object into PQF. Do not use
  36 directly.
  37
  38 =cut
  39
  40 sub target_syntax {
  41     my ($self, $server) = @_;
  42     my $attributes = $self->plan->QueryParser->bib1_mapping_by_name( 'filter', $self->name, $server );
  43
  44     if ($attributes->{'target_syntax_callback'}) {
  45         return $attributes->{'target_syntax_callback'}->($self->plan->QueryParser, $self->name, $self->args, $self->negate, $server);
  46     } else {
  47         return '';
  48     }
  49 }
  50
  51 1;