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package Catmandu::Fix::sum;
use Catmandu::Sane;
our $VERSION = '1.2024';
use Catmandu::Util qw(is_number);
use Catmandu::Util::Path qw(as_path);
use List::Util qw(all sum);
use Moo;
use namespace::clean;
use Catmandu::Fix::Has;
with 'Catmandu::Fix::Builder';
has path => (fix_arg => 1);
sub _build_fixer {
my ($self) = @_;
as_path($self->path)->updater(
if_array_ref => sub {
my $val = $_[0];
return undef, 1 unless all {is_number($_)} @$val;
sum(@$val) // 0;
}
);
}
1;
__END__
=pod
=head1 NAME
Catmandu::Fix::sum - replace the value of an array field with the sum of its elements
=head1 SYNOPSIS
# e.g. numbers => [2, 3]
sum(numbers)
# numbers => 5
=head1 SEE ALSO
L<Catmandu::Fix>
=cut
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