https://github.com/robrwo/struct-flatten-template

Flatten arbitrary structures using a template
https://github.com/robrwo/struct-flatten-template

Last synced: 11 days ago
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Flatten arbitrary structures using a template

• Host: GitHub
• URL: https://github.com/robrwo/struct-flatten-template
• Owner: robrwo
• Created: 2014-07-31T21:53:27.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2019-06-01T21:39:57.000Z (over 5 years ago)
• Last Synced: 2024-10-11T21:56:34.556Z (about 1 month ago)
• Language: Perl
• Size: 383 KB
• Stars: 0
• Watchers: 2
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README
  • Changelog: Changes

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README

        
NAME

    Struct::Flatten::Template - flatten data structures using a template

SYNOPSIS

      use Struct::Flatten::Template;

      my $tpl = {

        docs => [

          {

             key => \ { column => 0 },

             sum => {

                value => \ { column => 1 },

          }

        ],

      };

      my @data = ( );

      my $hnd = sub {

        my ($obj, $val, $args) = @_;

        my $idx = $args->{_index};

        my $col = $args->{column};

        $data[$idx] ||= [ ];

        $data[$idx]->[$col] = $val;

      };

      my $data = {

        docs => [

          { key => 'A', sum => { value => 10 } },

          { key => 'B', sum => { value =>  4 } },

          { key => 'C', sum => { value => 18 } },

        ],

      };

      my $p = Struct::Flatten::Template->new(

        template => $tpl,

        handler  => $hnd,

      );

DESCRIPTION

    This module is used for "flattening" complex, deeply-nested data

    structures, such as those returned by an ElasticSearch aggregation

    query.

    It is configured with a template that mirrors the data structure, where

    some parts of the template contain information how to process the

    corresponding parts of the data structure.

SEE ALSO

    The following alternative modules can be used to flatten hashes:

    Data::Hash::Flatten

    Hash::Flatten

AUTHOR

    Robert Rothenberg, `'

ACKNOWLEDGEMENTS

    Foxtons, Ltd.

LICENSE AND COPYRIGHT

    Copyright 2014 Robert Rothenberg.

    This program is free software; you can redistribute it and/or modify it

    under the terms of the the Artistic License (2.0). You may obtain a copy

    of the full license at:

    http://www.perlfoundation.org/artistic_license_2_0