$this->addOptions(array(
new sfCommandOption(‘application’, null, sfCommandOption::PARAMETER_REQUIRED, ‘The application name’),
new sfCommandOption(‘env’, null, sfCommandOption::PARAMETER_REQUIRED, ‘The environment’, ‘dev’),
new sfCommandOption(‘connection’, null, sfCommandOption::PARAMETER_REQUIRED, ‘The connection name’, ‘propel’),
// add your own options here
));

$this->namespace = ‘asset’;
$this->name = ‘regenerate-thumbnails’;
$this->briefDescription = ‘Regenerate all thumbnals using parameters defined in app.yml’;
$this->detailedDescription = <<configuration);
$connection = $databaseManager->getDatabase($options['connection'] ? $options['connection'] : null)->getConnection();

// If you have a lot of records you should refine this using hydration
$c = new Criteria();
$c->add(sfAssetPeer::TYPE, ‘image’);
$assets = sfAssetPeer::doSelect($c);

foreach ($assets as $asset) {
echo ‘Processing ‘ . SF_ROOT_DIR.DIRECTORY_SEPARATOR.’/web/’.$asset->getFolderPath() . ‘:’ . $asset->getFilename() . ‘…’;
sfAssetsLibraryTools::createThumbnails($asset->getFolderPath(), $asset->getFilename());
echo “done!\n”;
}

}
}