NAME

Catmandu::Fix::marc_add - add new fields to marc

SYNOPSIS

    # Set literal values
    marc_add('900', a, 'test' , 'b', test)
    marc_add('900', ind1 , ' ' , a, 'test' , 'b', test)
    marc_add('900', ind1 , ' ' , a, 'test' , 'b', test)

    # Set control fields
    marc_add('009','_','23123131')

    # Copy data from an other field (when the field value is an array, the
    # subfield will be repeated)
    marc_add('900', a, '$.my.data.field')

DESCRIPTION

Add a new subfield to MARC record.

METHODS

marc_add(MARC_FIELD, SUBFIELD, VALUE, [ SUBFIELD, VALUE , ... ])

Add new subfields to a MARC record. The MARC_FIELD should contain a marc field name, all other arguments contain the subfields to be added.

By default literal values will be added. To point to an existing value in a record use the JSON_PATH syntax with a dollar '$.' added in front.

INLINE

This Fix can be used inline in a Perl script:

    use Catmandu::Fix::marc_add as => 'marc_add';

    my $data = { record => [...] };

    $data = marc_add($data,'245','a','title');

SEE ALSO

Catmandu::Fix::marc_set, Catmandu::Fix::marc_copy, Catmandu::Fix::marc_cut, Catmandu::Fix::marc_paste