public function postCheckout(Request $request, Mailer $mailer)
{
    if (!Session::has('cart')) {
        return view('home.cart');
    }
    $oldCart = Session::get('cart');

    $cart = new Cart($oldCart);
    $total = $cart->totalPrice;

    foreach ($cart->items as $item) {
        $qty = 0;
        $qty = $item['qty'];
        $id = $item['item']->id;
        $product = Product::find($id);
        $sold = $product->sold;
        $sold = $sold + $qty;
        DB::statement('update products set sold = ? where id=?', [$sold, $id]);

        $vooraad = $product->vooraad;

        $totaalVooraad = $vooraad - $qty;
        DB::statement('update products set vooraad = ? where id=?', [$totaalVooraad, $id]);

    }
    if (Auth::guest()) {
        /**
         * Creating an Anonymous user for the order
         */
        $aUser = new User();
        $aUser->name = $request->name;
        $aUser->email = $request->email;
        $aUser->address = $request->address;
        $aUser->role = 'Anonymous';
        $aUser->password = bcrypt('noopassword');

        $aUser->save();
        $lastUser = User::orderBy('created_at', 'desc')->first();

        $order = new Order();
        $order->user_id = $lastUser->id;
        $order->cart = serialize($cart);
        $order->address = $request->address;
        $order->payment = $request->payment;
        $order->status = "In Progress";
        $order->cost = $total;

        $order->save();

        $email = $request->email;
        $name = $request->name;
        $mailer->to($email)->send(new OrderMail($email, $name, $order));

        Session::forget('cart');
        return redirect('/bedankt/order');
    } else {
        $order = new Order();
        $order->cart = serialize($cart);
        $order->address = $request->address;
        $order->user_id = Auth::user()->id;
        $order->payment = $request->payment;
        $order->status = "In Progress";
        $order->cost = $total;

        Auth::user()->orders()->save($order);

        Session::forget('cart');
        return redirect('/account/orders');
    }

}