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<?php
// +-----------------------------------------------------------------------+
// | Piwigo - a PHP based photo gallery                                    |
// +-----------------------------------------------------------------------+
// | Copyright(C) 2008-2014 Piwigo Team                  http://piwigo.org |
// | Copyright(C) 2003-2008 PhpWebGallery Team    http://phpwebgallery.net |
// | Copyright(C) 2002-2003 Pierrick LE GALL   http://le-gall.net/pierrick |
// +-----------------------------------------------------------------------+
// | This program is free software; you can redistribute it and/or modify  |
// | it under the terms of the GNU General Public License as published by  |
// | the Free Software Foundation                                          |
// |                                                                       |
// | This program 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      |
// | General Public License for more details.                              |
// |                                                                       |
// | You should have received a copy of the GNU General Public License     |
// | along with this program; if not, write to the Free Software           |
// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
// | USA.                                                                  |
// +-----------------------------------------------------------------------+

if (!defined('PHPWG_ROOT_PATH'))
{
  die('Hacking attempt!');
}

$upgrade_description = 'add "latitude" and "longitude" fields';

// add fields
$query = '
ALTER TABLE '. IMAGES_TABLE .'
  ADD `latitude` DOUBLE(8, 6) DEFAULT NULL,
  ADD `longitude` DOUBLE(9, 6) DEFAULT NULL
;';
pwg_query($query);

// add index
$query = '
ALTER TABLE '. IMAGES_TABLE .'
  ADD INDEX `images_i6` (`latitude`) 
;';
pwg_query($query);

// search for old "lat" field
$query = 'SHOW COLUMNS FROM '. IMAGES_TABLE .' LIKE "lat";';

if (pwg_db_num_rows(pwg_query($query)))
{
  // duplicate non-null values
  $query = '
UPDATE '. IMAGES_TABLE .'
  SET latitude = lat,
    longitude = lon
  WHERE lat IS NOT NULL
    AND lon IS NOT NULL
;';
  pwg_query($query);
}

echo "\n".$upgrade_description."\n";

?>