private function calculateAmount($productIds)
{
$this->amount = 0;
foreach ($productIds as $id) {
$this->amount += Product::findOrFail($id)->price;
}
return $this->amount;
}
/**
* 顯示結帳頁面
*/
public function index()
{
// 建立客戶 Account
$account = Account::updateOrCreate(['id' => 1], ['name' => "梅宗主"]);
$account->save();
// 模擬加入購物車動作
$cart = new MyCart();
$cart->add(Product::updateOrCreate(['id' => 1], ['name' => '暖爐', 'price' => '4000']));
$cart->add(Product::updateOrCreate(['id' => 2], ['name' => '護心丹', 'price' => '12000']));
$cart->add(Product::updateOrCreate(['id' => 3], ['name' => '密道鐵門', 'price' => '8000']));
return view('checkout', ['cart' => $cart, 'account' => $account]);
}