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Manual Reference Pages  -  HTML::FORMHANDLER::FIELD::COMPOUND (3)

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NAME

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

CONTENTS

VERSION

version 0.40065

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) 2016 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.

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perl v5.20.3 HTML::FORMHANDLER::FIELD::COMPOUND (3) 2016-03-20

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