###################################################################### # # EPrints::MetaField::Text; # ###################################################################### # # This file is part of GNU EPrints 2. # # Copyright (c) 2000-2004 University of Southampton, UK. SO17 1BJ. # # EPrints 2 is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # EPrints 2 is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with EPrints 2; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # ###################################################################### =pod =head1 NAME B<EPrints::MetaField::Text> - no description =head1 DESCRIPTION not done =over 4 =cut package EPrints::MetaField::Text; use strict; use warnings; use EPrints::MetaField; BEGIN { our( @ISA ); @ISA = qw( EPrints::MetaField ); } sub render_search_value { my( $self, $session, $value ) = @_; my $valuedesc = $session->make_doc_fragment; $valuedesc->appendChild( $session->make_text( '"' ) ); $valuedesc->appendChild( $session->make_text( $value ) ); $valuedesc->appendChild( $session->make_text( '"' ) ); my( $good, $bad ) = _extract_words( $session, $value ); if( scalar(@{$bad}) ) { my $igfrag = $session->make_doc_fragment; for( my $i=0; $i<scalar(@{$bad}); $i++ ) { if( $i>0 ) { $igfrag->appendChild( $session->make_text( ', ' ) ); } $igfrag->appendChild( $session->make_text( '"'.$bad->[$i].'"' ) ); } $valuedesc->appendChild( $session->html_phrase( "lib/searchfield:desc_ignored", list => $igfrag ) ); } return $valuedesc; } #sub split_search_value #{ # my( $self, $session, $value ) = @_; # # my( $codes, $bad ) = _extract_words( $session, $value ); # # return @{$codes}; #} sub get_search_conditions_not_ex { my( $self, $session, $dataset, $search_value, $match, $merge, $search_mode ) = @_; if( $match eq "EQ" ) { return EPrints::Search::Condition->new( '=', $dataset, $self, $search_value ); } # free text! # apply stemming and stuff my( $codes, $bad ) = _extract_words( $session, $search_value ); # Just go "yeah" if stemming removed the word if( !EPrints::Utils::is_set( $codes->[0] ) ) { return EPrints::Search::Condition->new( "PASS" ); } return EPrints::Search::Condition->new( 'index', $dataset, $self, $codes->[0] ); } sub get_search_group { return 'text'; } sub get_index_codes { my( $self, $session, $value ) = @_; return( [], [], [] ) unless( EPrints::Utils::is_set( $value ) ); if( !$self->get_property( "multiple" ) ) { return $self->get_index_codes_basic( $session, $value ); } my( $codes, $grepcodes, $ignored ) = ( [], [], [] ); foreach my $v (@{$value} ) { my( $c,$g,$i ) = $self->get_index_codes_basic( $session, $v ); push @{$codes},@{$c}; push @{$grepcodes},@{$g}; push @{$ignored},@{$i}; } return( $codes, $grepcodes, $ignored ); } sub get_index_codes_basic { my( $self, $session, $value ) = @_; return( [], [], [] ) unless( EPrints::Utils::is_set( $value ) ); my( $codes, $badwords ) = _extract_words( $session, $value ); return( $codes, [], $badwords ); } # internal function to paper over some cracks in 2.2 # text indexing config. sub _extract_words { my( $session, $value ) = @_; my( $codes, $badwords ) = $session->get_repository->call( "extract_words" , $session, $value ); my $newbadwords = []; foreach( @{$badwords} ) { next if( $_ eq "" ); push @{$newbadwords}, $_; } return( $codes, $newbadwords ); } sub get_property_defaults { my( $self ) = @_; my %defaults = $self->SUPER::get_property_defaults; $defaults{text_index} = 1; $defaults{sql_index} = 0; return %defaults; } ###################################################################### 1;