HTML::FormHandler::Field::Compound(3p)

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.