function run_rollback($task, $args)
{
if (count($args) == 0) {
throw new Exception('You must provide a app.');
}
@(list($app, $env) = explode(':', $args[0]));
if (!is_dir(sfConfig::get('sf_app_dir') . DIRECTORY_SEPARATOR . $app)) {
throw new Exception('The app "' . $app . '" does not exist.');
}
// define constants
define('SF_ROOT_DIR', sfConfig::get('sf_root_dir'));
define('SF_APP', $app);
define('SF_ENVIRONMENT', $env ? $env : 'cli');
define('SF_DEBUG', true);
// get configuration
require_once SF_ROOT_DIR . DIRECTORY_SEPARATOR . 'apps' . DIRECTORY_SEPARATOR . SF_APP . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'config.php';
$databaseManager = new sfDatabaseManager();
$databaseManager->initialize();
$migrator = new sfMigrator();
$count = $migrator->rollback(1);
$currentVersion = $migrator->getCurrentVersion();
pake_echo_action('migrations', 'migrated ' . $count . ' step(s)');
pake_echo_action('migrations', 'current database version: ' . $currentVersion);
}
