[librecat-dev] my.very.deep.path in Catmandu::Fix::marc_spec

[Nicolas Steenlant]

Hi Carsten,

Catmandu::Util has some internal (and undocumented) functions that help with this:

use Catmandu::Util qw(:data);
use Data::Dumper;
my $data = {};
my $nested = data_at('my.very.deep', $data, create => 1, key => 'path');
set_data($nested, 'path', 'a value');
print Dumper($data);

$VAR1 = {'my' => {'very' => {'deep' => {'path' => 'a value'}}}};

Calling data_at without the create => 1 option will not make missing intermediate structures
and return undef in this case.
The key => ‘path’ option gives a hint to data_at that you want ‘deep’ to be a hash
and not an array,
since it can’t guess the type by looking at the next segment of the path.

Regards,
Nicolas

--
Nicolas Steenlant
Ghent University Library

Sint-Hubertusstraat 8
9000 Gent

nicolas.steenlant at ugent.be
+32 486 62 62 27


> On 10 Jun 2016, at 14:05, Klee, Carsten <Carsten.Klee at sbb.spk-berlin.de> wrote:
> 
> Hi Catmandu monks!
>  
> I’m currently working on the Catmandu::Fix::marc_spec [1]. I chose to stick with a simple ‘fix’ method (emit is quite hairy and Perl is difficult enough to learn).
>  
> To make long things short: How do I get my referenced data into the my.very.deep.path?
>  
> I read https://librecatproject.wordpress.com/2014/03/26/create-a-fixer-part-2/ . But is there an easy way to reuse the Catmandu::Fix methods in a non emit method?
>  
> Cheers!
>  
> Carsten 
>  
>  
> [1] <https://github.com/cKlee/Catmandu-Fix-marc_spec>
>  
>  
> _______________________________________________
> Carsten Klee
> Abt. Überregionale Bibliographische Dienste IIE
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> Potsdamer Straße 33
> 10785 Berlin
> 
> Fon:  +49 30 266-43 44 02
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