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<?php defined("SYSPATH") or die("No direct script access.");
/**
* Gallery - a web based photo album viewer and editor
* Copyright (C) 2000-2008 Bharat Mediratta
*
* 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; either version 2 of the License, or (at
* your option) any later version.
*
* 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
*/
class image_block_installer {
static function install() {
$db = Database::instance();
$version = module::get_version("image_block");
if ($version == 0) {
$db = Database::instance();
$db->query("ALTER TABLE `items` ADD `rand_key` FLOAT DEFAULT NULL");
$db->query("UPDATE `items` SET `rand_key` = RAND()");
$db->query("CREATE INDEX `random_index` ON `items` (rand_key DESC)");
module::set_version("image_block", 1);
}
}
static function uninstall() {
$db = Database::instance();
// Dropping the column should drop the index as well.
$db->query("ALTER TABLE `items` DROP `rand_key`");
module::delete("image_block");
}
}
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