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package HTML::FormFu::Deflator::CompoundDateTime;
use Moose;
use MooseX::Attribute::Chained;
extends 'HTML::FormFu::Deflator';
use HTML::FormFu::Constants qw( $EMPTY_STR );
use DateTime;
use List::MoreUtils qw( none );
use Carp qw( croak );
has field_order => ( is => 'rw', traits => ['Chained'] );
my @known_fields = qw( year month day hour minute second nanosecond time_zone );
sub deflator {
my ( $self, $value ) = @_;
return if !defined $value || $value eq $EMPTY_STR;
# do we have a DateTime object?
eval { $value->$_ for @known_fields };
return $value if $@;
my ( $multi, @fields ) = @{ $self->parent->get_fields };
if ( defined( my $order = $self->field_order ) ) {
for my $order (@$order) {
croak "unknown DateTime field_order name"
if none { $order eq $_ } @known_fields;
my $field = shift @fields;
$field->default( $value->$order );
}
}
else {
for my $field (@fields) {
my $name = $field->name;
croak "unknown DateTime field name"
if none { $name eq $_ } @known_fields;
$field->default( $value->$name );
}
}
return;
}
__PACKAGE__->meta->make_immutable;
1;
__END__
=head1 NAME
HTML::FormFu::Deflator::CompoundDateTime - CompoundDateTime deflator
=head1 SYNOPSIS
---
element:
- type: Multi
name: date
elements:
- name: day
- name: month
- name: year
deflator:
- type: CompoundDateTime
# set the default
$form->get_field('date')->default( $datetime );
=head1 DESCRIPTION
For use with a L<HTML::FormFu::Element::Multi> group of fields.
Sets the default values of several fields from a single L<DateTime> value.
By default, expects the field names to be any of the following:
=over
=item year
=item month
=item day
=item hour
=item minute
=item second
=item nanosecond
=item time_zone
=back
=head1 METHODS
=head2 field_order
Arguments: \@order
If your field names don't follow the convention listed above, you must
provide an arrayref containing the above names, in the order they correspond
with your own fields.
---
element:
- type: Multi
name: date
elements:
- name: m
- name: d
- name: y
deflator:
- type: CompoundDateTime
field_order:
- month
- day
- year
=head1 AUTHOR
Carl Franks
=head1 LICENSE
This library is free software, you can redistribute it and/or modify it under
the same terms as Perl itself.
=cut
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