我正在与laravel进行一个网上购物项目，但这里有一个问题，我想如果用户将产品添加到购物车中，并且已经有相同的产品将被添加数量，
但在我的项目中：如果用户向购物车添加了一个产品，并且已经有了相同的产品，那么它将向会话添加一个新的价值项目
阵列：
array:3 [▼
0 => array:5 [▼
"id" => 7
"nama_product" => "adssdsadxx"
"harga" => 13
"pict" => "s.gif"
"qty" => 1
]
1 => array:5 [▼
"id" => 7
"nama_product" => "adssdsadxx"
"harga" => 13
"pict" => "s.gif"
"qty" => 1
]
2 => array:5 [▼
"id" => 7
"nama_product" => "adssdsadxx"
"harga" => 13
"pict" => "s.gif"
"qty" => 1
]
]
阵列：
array:1 [▼
0 => array:5 [▼
"id" => 7
"nama_product" => "adssdsadxx"
"harga" => 39
"pict" => "s.gif"
"qty" => "3"
]
]
这是我的ProductsController.php：
public function Cart()
{
return view('shop.cart');
}
public function addToCart(Request $request, $id)
{
$product = DB::select('select * from products where id='.$id);
$cart = Session::get('cart');
$cart[] = array(
"id" => $product[0]->id,
"nama_product" => $product[0]->nama_product,
"harga" => $product[0]->harga,
"pict" => $product[0]->pict,
"qty" => 1,
);
Session::put('cart', $cart);
Session::flash('success','barang berhasil ditambah ke keranjang!');
//dd(Session::get('cart'));
return redirect()->back();
}
public function updateCart(Request $cartdata)
{
$cart = Session::get('cart');
$cartQty = 1;
foreach ($cartdata->all() as $id => $val)
{
if ($cartQty != 1) {
$cart[$id]['qty'] = $val;
if ($val < 1) {
unset($cart[$id]);
}
}
$cartQty++;
}
Session::put('cart', $cart);
return redirect()->back();
}
public function deleteCart($id)
{
$cart = Session::get('cart');
unset($cart[$id]);
Session::put('cart', $cart);
return redirect()->back();
}
非常感谢你。。。
如果产品已经存在，则更新产品数量，否则将新产品添加到购物车中。
注意：确保app/Http/Kernel.php应该像这样将Start会话放入protected$middleware中。
/**
* Add product to the cart
*
* @return success message
*/
public function addToCart(Request $request){
$product = $request->all();
$cart = Session::get('cart');
/*
* If product already exist into the cart then update QTY of product
* Othewise add new product into the cart
*/
if(isset($cart[$product['id']])):
$cart[$product['id']]['qty'] += 1;
else:
$cart[$product['id']] = $product;
$cart[$product['id']]['qty'] = 1; // Dynamically add initial qty
endif;
Session::put('cart', $cart);
return Response::json(['success' => true, 'cart_items' => count(Session::get('cart')), 'message' => 'Cart updated.']);
}
您需要更改代码：
public function addToCart(Request $request, $id)
{
$product = DB::select('select * from products where id='.$id);
$cart = Session::get('cart');
$cart[$product[0]->id] = array(
"id" => $product[0]->id,
"nama_product" => $product[0]->nama_product,
"harga" => $product[0]->harga,
"pict" => $product[0]->pict,
"qty" => 1,
);
Session::put('cart', $cart);
Session::flash('success','barang berhasil ditambah ke keranjang!');
//dd(Session::get('cart'));
return redirect()->back();
}
public function updateCart(Request $cartdata)
{
$cart = Session::get('cart');
foreach ($cartdata->all() as $id => $val)
{
if ($val > 0) {
$cart[$id]['qty'] += $val;
} else {
unset($cart[$id]);
}
}
Session::put('cart', $cart);
return redirect()->back();
}
只需按产品ID键创建购物车数组。
