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package HTML::FormFu::Constraint::DateTime;
use Moose;
extends 'HTML::FormFu::Constraint';
use DateTime::Format::Builder;
has _builder => (
is => 'rw',
default => sub { DateTime::Format::Builder->new },
lazy => 1,
);
sub parser {
my $self = shift;
$self->_builder->parser(@_);
return $self;
}
sub constrain_value {
my ( $self, $value ) = @_;
return 1 if !defined $value || $value eq '';
my $dt = $self->_builder->parse_datetime($value);
return 1;
}
sub clone {
my $self = shift;
my $clone = $self->SUPER::clone(@_);
$clone->_builder( $self->_builder->clone );
return $clone;
}
__PACKAGE__->meta->make_immutable;
1;
__END__
=head1 NAME
HTML::FormFu::Constraint::DateTime - DateTime constraint
=head1 SYNOPSIS
---
elements:
- type: Text
name: start_date
constraints:
- type: DateTime
parser:
strptime: '%d-%m-%Y'
- type: Text
name: end_time
constraints:
- type: DateTime
parser:
regex: !!perl/regexp '^(\d{2}) - (\d{2}) - (\d{4})$'
params: [day, month, year]
An example of using the same parser declaration for both a DateTime
constraint and a DateTime inflator, using YAML references:
---
elements:
- type: Text
name: date
constraints:
- type: DateTime
parser: &PARSER
strptime: '%d-%m-%Y'
inflators:
- type: DateTime
parser: *PARSER
=head1 DESCRIPTION
Ensure input can later be inflated to a DateTime object.
=head1 METHODS
=head2 parser
Arguments: \%args
Required. Define the expected input string, so L<DateTime::Format::Builder>
knows how to turn it into a L<DateTime> object.
Accepts arguments to be passed to L<DateTime::Format::Builder/parser>.
=head1 AUTHOR
Carl Franks, C<cfranks@cpan.org>
=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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