# Copyright (c) 2008 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: HashList.pm,v 1.1 2008/09/10 21:49:17 nagler Exp $
package Bivio::Biz::Model::HashList;
use strict;
use Bivio::Base 'Biz.ListModel';

our($VERSION) = sprintf('%d.%02d', q$Revision: 1.1 $ =~ /\d+/g);
my($_IDI) = __PACKAGE__->instance_data_index;

sub internal_initialize {
    my($self) = @_;
    return $self->merge_initialize_info($self->SUPER::internal_initialize, {
        version => 1,
	$self->field_decl(
	    primary_key => ['key'],
	    other => ['value'],
	    'String',
	),
    });
}

sub internal_load_rows {
    my($self) = @_;
    my($fields) = $self->[$_IDI];
    return [
	map(+{key => $_, value => $fields->{hash}->{$_}}, @{$fields->{keys}}),
    ];
}

sub load_from_hash {
    my($self, $hash, $keys) = @_;
    $self->[$_IDI] = {hash => $hash, keys => $keys || [sort(keys(%$hash))]};
    return $self->load_all;
}

1;