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package Koha::Template::Plugin::To;
# This file is part of Koha.
# Copyright BibLibre 2014
# Koha 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 3 of the License, or (at your option) any later
# version.
# Koha 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 Koha; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
use Modern::Perl;
use Template::Plugin::Filter;
use base qw( Template::Plugin::Filter );
use JSON qw( to_json );
our $DYNAMIC = 1;
sub json {
my ( $self, $value ) = @_;
my $json = JSON->new->allow_nonref(1);
$json = $json->encode($value);
$json =~ s/^"|"$//g; # Remove quotes around the strings
$json =~ s/\\r/\\\\r/g; # Convert newlines to escaped newline characters
$json =~ s/\\n/\\\\n/g;
return $json;
sub filter {
my ( $self, $value ) = @_;
return $self->json($value);