App\Http\Controllers\Admin\Store\OrdersController::update PHP Method

    public function update($id)
    {
        $order = Store\Order::findOrFail($id);
        if ($order->status !== 'paid') {
            return error_popup("order status {$order->status} is invalid.");
        }
        $order->unguard();
        $order->update(Request::input('order'));
        $order->save();
        return ['message' => "order {$id} updated"];
    }