NAME

Catmandu::Validator::MARC - Validate MARC records against a MARC21 Schema

SYNOPSIS

In Perl code:

    use Catmandu::Validator::MARC;
    Catmandu::Validator::MARC;
    use DDP;
        
    # load default MARC schema
    my $validator = Catmandu::Validator::MARC->new();
    
    # ... or load custom MARC schema
    my $validator = Catmandu::Validator::MARC->new( schema => 'schema.json' );
    my $importer = Catmandu::Importer::MARC->new(
        file => 't/camel.mrc',
        type => "ISO"
    );
    $importer->each( sub {
        my $record = shift;
        unless($validator->validate($record)){
            p $_ for @{$validator->last_errors()};
        }
    });

In Catmandu Fix language:

    # reject all items not conforming to the default MARC schema
    select valid(., MARC)
    # reject all items not conforming to a custom MARC schema
    select valid(., MARC, schema: 'schema.json')

DESCRIPTION

This Catmandu::Validator can be used to check MARC records against an MARC21 schema. For more information see MARC::Schema and "MARC21 structure in JSON" <https://pkiraly.github.io/2018/01/28/marc21-in-json/>.

See also Catmandu::Fix::validate, and Catmandu::Fix::Condition::valid for usage of validators in Catmandu Fix language.

CONFIGURATION

schema

MARC Schema given as filename (JSON) or instance of MARC::Schema.

ignore_unknown_fields

Don't report fields not included in the schema.

ignore_unknown_subfields

Don't report subfields not included in the schema.

AUTHOR

Johann Rolschewski, <jorol at cpan>