protected function generateMigrationCode($upCode, $downCode)
{
$templatePath = '$/rainlab/builder/classes/databasetablemodel/templates/migration-code.php.tpl';
$templatePath = File::symbolizePath($templatePath);
$fileContents = File::get($templatePath);
return TextParser::parse($fileContents, ['upCode' => $upCode, 'downCode' => $downCode]);
}