public function paid()
 {
     $user_id = \Auth::user()->id;
     $cart = new cartController();
     $date = date('Y/m/d H:i:s');
     $cartContents = $cart->getCartSession();
     $carttable = \App\Cart::orderBy('id', 'DESC')->first();
     $orderid = $carttable['id'] + 1;
     foreach ($cartContents as $product => $data) {
         $orderdata = ['id' => $orderid, 'user_id' => $user_id, 'product_id' => $product, 'amount' => $data['amount'], 'paid' => $date, 'status' => 'paid'];
         $order = \App\Cart::create($orderdata);
         $product = \App\Product::where('product_id', $product)->first();
         $product->stock = $product->stock - $data['amount'];
         $product->save();
         $cart->destroy($product);
     }
     return view('pages/shop/paid');
 }