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DateTime.pm
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/
DateTime.pm
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package DBIx::Class::InflateColumn::DateTime;
use strict;
use warnings;
use base qw/DBIx::Class/;
=head1 NAME
DBIx::Class::InflateColumn::DateTime - Auto-create DateTime objects from date and datetime columns.
=head1 SYNOPSIS
Load this component and then declare one or more
columns to be of the datetime, timestamp or date datatype.
package Event;
__PACKAGE__->load_components(qw/Core InflateColumn::DateTime/);
__PACKAGE__->add_columns(
starts_when => { data_type => 'datetime' }
);
Then you can treat the specified column as a L<DateTime> object.
print "This event starts the month of ".
$event->starts_when->month_name();
=head1 DESCRIPTION
This module figures out the type of DateTime::Format::* class to
inflate/deflate with based on the type of DBIx::Class::Storage::DBI::*
that you are using. If you switch from one database to a different
one your code should continue to work without modification (though note
that this feature is new as of 0.07, so it may not be perfect yet - bug
reports to the list very much welcome).
For more help with using components, see L<DBIx::Class::Manual::Component/USING>.
=cut
__PACKAGE__->load_components(qw/InflateColumn/);
__PACKAGE__->mk_group_accessors('simple' => '__datetime_parser');
=head2 register_column
Chains with the L<DBIx::Class::Row/register_column> method, and sets
up datetime columns appropriately. This would not normally be
directly called by end users.
=cut
sub register_column {
my ($self, $column, $info, @rest) = @_;
$self->next::method($column, $info, @rest);
return unless defined($info->{data_type});
my $type = lc($info->{data_type});
$type = 'datetime' if ($type eq 'timestamp');
if ($type eq 'datetime' || $type eq 'date') {
my ($parse, $format) = ("parse_${type}", "format_${type}");
$self->inflate_column(
$column =>
{
inflate => sub {
my ($value, $obj) = @_;
$obj->_datetime_parser->$parse($value);
},
deflate => sub {
my ($value, $obj) = @_;
$obj->_datetime_parser->$format($value);
},
}
);
}
}
sub _datetime_parser {
my $self = shift;
if (my $parser = $self->__datetime_parser) {
return $parser;
}
my $parser = $self->result_source->storage->datetime_parser(@_);
return $self->__datetime_parser($parser);
}
1;
__END__
=head1 SEE ALSO
=over 4
=item More information about the add_columns method, and column metadata,
can be found in the documentation for L<DBIx::Class::ResultSource>.
=back
=head1 AUTHOR
Matt S. Trout <mst@shadowcatsystems.co.uk>
=head1 CONTRIBUTORS
Aran Deltac <bluefeet@cpan.org>
=head1 LICENSE
You may distribute this code under the same terms as Perl itself.