# Copyright (c) 2010 bivio Software, Inc.  All Rights Reserved.
#
# Visit http://www.bivio.biz for more info.
# 
# This library is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 2.1 of the
# License, or (at your option) any later version.
# 
# This library is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# 
# You should have received a copy of the GNU Lesser General Public
# License along with this library;  If not, you may get a copy from:
# http://www.opensource.org/licenses/lgpl-license.html
# 
# $Id: TimeZoneList.pm,v 1.4 2010/05/26 03:27:31 schellj Exp $
package Bivio::Biz::Model::TimeZoneList;
use strict;
use Bivio::Base 'Biz.ListModel';

our($VERSION) = sprintf('%d.%02d', q$Revision: 1.4 $ =~ /\d+/g);
my($_C) = b_use('FacadeComponent.Constant');
my($_R) = b_use('IO.Ref');
my($_TZ) = b_use('Type.TimeZone');

sub display_name_for_enum {
    my($self, $enum) = @_;
    $self->load_all
	unless $self->is_loaded;
    return $self->find_row_by(enum => $enum) ? $self->get('display_name')
	: $enum->as_display_name;
}

sub enum_for_display_name {
    my($self, $display_name) = @_;
    return _get_enum_from_model($self, $display_name)
	|| $_TZ->from_any($display_name);
}

sub internal_initialize {
    my($self) = @_;
    return $self->merge_initialize_info($self->SUPER::internal_initialize, {
        version => 1,
	can_iterate => 0,
	$self->field_decl(
	    primary_key => [
		[qw(enum TimeZone)],
	    ],
	    other => [
		[qw(display_name Line)],
	    ],
	    undef, 'NOT_NULL',
	),
    });
}

sub internal_load_rows {
    my($self) = @_;
    return $_R->nested_copy(
	$_C->get_value('Model.TimeZoneList.rows', $self->req));
}

sub unsafe_enum_for_display_name {
    my($self, $display_name) = @_;
    return _get_enum_from_model($self, $display_name)
	|| $_TZ->unsafe_from_any($display_name);
}

sub _get_enum_from_model {
    my($self, $display_name) = @_;
    $self->load_all
	unless $self->is_loaded;
    return $self->find_row_by(display_name => $display_name)
	? $self->get('enum') : undef;
}

1;