package Catmandu::Fix::join_field;
use Catmandu::Sane;
use Moo;
with 'Catmandu::Fix::Base';
has path => (is => 'ro', required => 1);
has join_char => (is => 'ro', required => 1);
around BUILDARGS => sub {
my ($orig, $class, $path, $join_char) = @_;
$orig->($class, path => $path, join_char => $join_char // '');
};
sub emit {
my ($self, $fixer) = @_;
my $path = $fixer->split_path($self->path);
my $key = pop @$path;
my $join_char = $fixer->emit_string($self->join_char);
$fixer->emit_walk_path($fixer->var, $path, sub {
my $var = shift;
$fixer->emit_get_key($var, $key, sub {
my $var = shift;
"if (is_array_ref(${var})) {".
"${var} = join(${join_char}, grep { is_value(\$_) } \@{${var}});".
"}";
});
});
}
=head1 NAME
Catmandu::Fix::join_field - join the ARRAY values of a field into a string
=head1 SYNOPSIS
# Join the array values of a field into a string. E.g. foo => [1,2,3]
join_field('foo','/'); # foo => "1/2/3"
=head1 SEE ALSO
L<Catmandu::Fix>
=cut
1;