File: copy_field.pm

package info (click to toggle)
libcatmandu-perl 1.2024-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 3,552 kB
  • sloc: perl: 17,037; makefile: 24; sh: 1
file content (54 lines) | stat: -rw-r--r-- 974 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
package Catmandu::Fix::copy_field;

use Catmandu::Sane;

our $VERSION = '1.2024';

use Moo;
use Catmandu::Util::Path qw(as_path);
use Clone                qw(clone);
use namespace::clean;
use Catmandu::Fix::Has;

with 'Catmandu::Fix::Builder';

has old_path => (fix_arg => 1);
has new_path => (fix_arg => 1);

sub _build_fixer {
    my ($self)   = @_;
    my $old_path = as_path($self->old_path);
    my $new_path = as_path($self->new_path);
    my $getter   = $old_path->getter;
    my $creator  = $new_path->creator;

    sub {
        my $data   = $_[0];
        my $values = [map {clone($_)} @{$getter->($data)}];
        while (@$values) {
            $data = $creator->($data, shift @$values);
        }
        $data;
    };
}

1;

__END__

=pod

=head1 NAME

Catmandu::Fix::copy_field - copy the value of one field to a new field

=head1 SYNOPSIS

   # Copy the values of foo.bar into bar.foo
   copy_field(foo.bar, bar.foo)

=head1 SEE ALSO

L<Catmandu::Fix>

=cut