Rose::DB::Object::Metadata::Column::Datetime - Datetime column metadata.

Rose-DB-Object documentation Contained in the Rose-DB-Object distribution.

Index

Code Index:

NAME

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Rose::DB::Object::Metadata::Column::Datetime - Datetime column metadata.

SYNOPSIS

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  use Rose::DB::Object::Metadata::Column::Datetime;

  $col = Rose::DB::Object::Metadata::Column::Datetime->new(...);
  $col->make_methods(...);
  ...

DESCRIPTION

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Objects of this class store and manipulate metadata for datetime columns in a database. Column metadata objects store information about columns (data type, size, etc.) and are responsible for creating object methods that manipulate column values.

This class inherits from Rose::DB::Object::Metadata::Column::Date. Inherited methods that are not overridden will not be documented a second time here. See the Rose::DB::Object::Metadata::Column::Date documentation for more information.

METHOD MAP

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get_set

Rose::DB::Object::MakeMethods::Date, datetime, type => 'datetime', interface => 'get_set', ...

get

Rose::DB::Object::MakeMethods::Date, datetime, type => 'datetime', interface => 'get', ...

set

Rose::DB::Object::MakeMethods::Date, datetime, type => 'datetime', interface => 'set', ...

See the Rose::DB::Object::Metadata::Column documentation for an explanation of this method map.

OBJECT METHODS

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parse_value DB, VALUE

Convert VALUE to the equivalent DateTime object. VALUE maybe returned unmodified if it is a valid datetime keyword or otherwise has special meaning to the underlying database. DB is a Rose::DB object that is used as part of the parsing process. Both arguments are required.

time_zone [TZ]

Get or set the time zone of the values stored in this column. TZ should be a time zone name that is understood by DateTime::TimeZone.

type

Returns "datetime".

AUTHOR

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John C. Siracusa (siracusa@gmail.com)

LICENSE

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Copyright (c) 2010 by John C. Siracusa. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

Rose-DB-Object documentation Contained in the Rose-DB-Object distribution. 
package Rose::DB::Object::Metadata::Column::Datetime;

use strict;

use Rose::DB::Object::MakeMethods::Date;

use Rose::DB::Object::Metadata::Column::Date;
our @ISA = qw(Rose::DB::Object::Metadata::Column::Date);

our $VERSION = '0.788';

__PACKAGE__->add_common_method_maker_argument_names
(
  qw(time_zone)
);

Rose::Object::MakeMethods::Generic->make_methods
(
  { preserve_existing => 1 },
  scalar => [ __PACKAGE__->common_method_maker_argument_names ]
);

foreach my $type (__PACKAGE__->available_method_types)
{
  __PACKAGE__->method_maker_type($type => 'datetime');
}

sub type { 'datetime' }

sub should_inline_value
{
  my($self, $db, $value) = @_;
  no warnings 'uninitialized';
  return (($db->validate_datetime_keyword($value) && $db->should_inline_datetime_keyword($value)) ||
          ($db->keyword_function_calls && $value =~ /^\w+\(.*\)$/)) ? 1 : 0;
}

sub parse_value
{
  my($self, $db) = (shift, shift);

  $self->parse_error(undef);

  my $dt = (defined $_[0]) ? $db->parse_datetime(@_) : undef;

  if($dt)
  {
    $dt->set_time_zone($self->time_zone || $db->server_time_zone)
      if(UNIVERSAL::isa($dt, 'DateTime'));
  }
  else
  {
    $dt = Rose::DateTime::Util::parse_date($_[0], $self->time_zone || $db->server_time_zone);

    if(my $error = Rose::DateTime::Util->error)
    {
      $self->parse_error("Could not parse value '$_[0]' for column $self: $error")
        if(defined $_[0]);
    }
  }

  return $dt;
}

sub format_value { shift; shift->format_datetime(@_) }

1;

__END__