Devise\Models\Scaffolding\MigrationScaffolding::buildParameters PHP Method

    private function buildParameters($field)
    {
        $parameters = '';
        if (is_array($field['type'])) {
            foreach (array_slice($field['type'], 1) as $param) {
                $parameters .= ", " . $param;
            }
        }
        return $parameters;
    }