NAME

       HTML::FormHandler::Field::Compound - field consisting of subfields

VERSION

       version 0.40068

SYNOPSIS

       This field class is designed as the base (parent) class for fields with multiple
       subfields. Examples are HTML::FormHandler::Field::DateTime and
       HTML::FormHandler::Field::Duration.

       A compound parent class requires the use of sub-fields prepended with the parent class
       name plus a dot

          has_field 'birthdate' => ( type => 'DateTime' );
          has_field 'birthdate.year' => ( type => 'Year' );
          has_field 'birthdate.month' => ( type => 'Month' );
          has_field 'birthdate.day' => ( type => 'MonthDay');

       If all validation is performed in the parent class so that no validation is necessary in
       the child classes, then the field class 'Nested' may be used.

       The array of subfields is available in the 'fields' array in the compound field:

          $form->field('birthdate')->fields

       Error messages will be available in the field on which the error occurred. You can access
       'error_fields' on the form or on Compound fields (and subclasses, like Repeatable).

       The process method of this field runs the process methods on the child fields and then
       builds a hash of these fields values.  This hash is available for further processing by
       "actions" in HTML::FormHandler::Field and the validate method.

   widget
       Widget type is 'compound'

   build_update_subfields
       You can set 'defaults' or other settings in a 'build_update_subfields' method, which
       contains attribute settings that will be merged with field definitions when the fields are
       built. Use the 'by_flag' key with 'repeatable', 'compound', and 'contains' subkeys, or use
       the 'all' key for settings which apply to all subfields in the compound field.

AUTHOR

       FormHandler Contributors - see HTML::FormHandler

COPYRIGHT AND LICENSE

       This software is copyright (c) 2017 by Gerda Shank.

       This is free software; you can redistribute it and/or modify it under the same terms as
       the Perl 5 programming language system itself.