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package HTML::FormFu::Inflator::DateTime;
use Moose;
use MooseX::Attribute::Chained;
extends 'HTML::FormFu::Inflator';
use HTML::FormFu::Constants qw( $EMPTY_STR );
use DateTime::Format::Builder;
use DateTime::Format::Strptime;
use Scalar::Util qw( reftype );
has strptime => ( is => 'rw', traits => ['Chained'] );
has time_zone => ( is => 'rw', traits => ['Chained'] );
has _builder => (
is => 'rw',
default => sub { DateTime::Format::Builder->new },
lazy => 1,
);
sub parser {
my ( $self, $arg ) = @_;
if ( exists $arg->{regex} && !ref $arg->{regex} ) {
$arg->{regex} = qr/$arg->{regex}/;
}
$self->_builder->parser($arg);
return $self;
}
sub inflator {
my ( $self, $value ) = @_;
return if !defined $value || $value eq $EMPTY_STR;
my $dt = $self->_builder->parse_datetime($value);
if ( defined $self->time_zone ) {
$dt->set_time_zone( $self->time_zone );
}
if ( defined $self->strptime ) {
my $strptime = $self->strptime;
my %args;
if ( ( reftype( $strptime ) || '' ) eq 'HASH' ) {
%args = %$strptime;
}
else {
%args = ( pattern => $strptime );
}
# Make strptime format the date with the specified time_zone,
# this is most likely what the user wants
if ( defined $self->time_zone ) {
$args{time_zone} = $self->time_zone;
}
if ( !exists $args{locale}
&& defined( my $locale = $self->locale ) )
{
$args{locale} = $locale;
}
my $formatter = DateTime::Format::Strptime->new(%args);
$dt->set_formatter($formatter);
}
return $dt;
}
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::Inflator::DateTime - DateTime inflator
=head1 SYNOPSIS
---
elements:
- type: Text
name: start_date
inflators:
- type: DateTime
parser:
strptime: '%d-%m-%Y'
strptime:
pattern: '%d-%b-%Y'
locale: de
- type: Text
name: end_time
inflators:
- type: DateTime
time_zone: Europe/Rome
parser:
regex: '^ (\d{2}) - (\d{2}) - (\d{4}) $'
params: [day, month, year]
strptime: '%d-%m-%Y'
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
Inflate dates into L<DateTime> objects.
For a corresponding deflator, see L<HTML::FormFu::Deflator::Strftime>.
=head1 METHODS
=head2 parser
Arguments: \%args
Required. Define the expected input string, so L<DateTime::Format::Builder>
knows how to inflate it into a L<DateTime> object.
Accepts arguments to be passed to L<DateTime::Format::Builder/parser>.
=head2 strptime
Arguments: \%args
Arguments: $string
Optional. Define the format that should be used if the L<DateTime> object is
stringified.
=head2 time_zone
Arguments: $string
Optional. You can pass along a time_zone in which the DateTime will be
created. This is useful if the string to parse does not contain time zone
information and you want the DateTime to be in a specific zone instead
of the floating one (which is likely).
Accepts a hashref of arguments to be passed to
L<DateTime::Format::Strptime/new>. Alternatively, accepts a single string
argument, suitable for passing to
C<< DateTime::Format::Strptime->new( pattern => $string ) >>.
=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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