我的刀片文件--->
{!! Form::open(['url'=>'/cart/update', 'method'=>'POST']) !!}
<div class="color-quality">
<div class="color-quality-right">
<input type="number" name="qty" value="{{ $cartProduct->quantity }}" min="1">
<input type="hidden" name="id" value="{{ $cartProduct->id }}">
<input type="submit" name="submit" value="update" class="item_add hvr-outline-out button2">
{{-- <button type="submit" name="submit" value="update" class="item_add hvr-outline-out button2">Update</button> --}}
</div>
</div>
{!! Form::close() !!}
路由文件->
Route::post('/cart/update', 'CartController@updateCart');
控制器文件
public function updateCart(Request $request){
$qty= $request->qty;
$id = $request->id;
/*echo $qty;
echo "<br>";
echo $id;*/
Cart::update($id, $qty);
return redirect('/cart/show');
}
当我回显文件并按UPDATE btn时,我得到这个ID和数量编号的结果... 返回,另一方面,出现一些错误... ErrorException(E_WARNING) 为foreach()提供了无效的参数
C:\ xampp \ htdocs \ larashop \ vendor \ darryldecode \ cart \ src \ Darryldecode \ Cart \ Cart.php *更新购物车 * * @参数$ id * @参数$ data * * $ data将是一个关联数组,您不需要传递所有数据,只需传递键值 *您要更新的项目的* * @返回布尔 * / 公共功能更新($ id,$ data) { if($ this-> fireEvent('updating',$ data)=== false){ 返回false; }
$cart = $this->getContent();
$item = $cart->pull($id);
foreach ($data as $key => $value) {
// if the key is currently "quantity" we will need to check if an arithmetic
// symbol is present so we can decide if the update of quantity is being added
// or being reduced.
if ($key == 'quantity') {
// we will check if quantity value provided is array,
// if it is, we will need to check if a key "relative" is set
// and we will evaluate its value if true or false,
// this tells us how to treat the quantity value if it should be updated
// relatively to its current quantity value or just totally replace the value
if (is_array($value)) {
if (isset($value['relative'])) {
if ((bool)$value['relative']) {
$item = $this->updateQuantityRelative($item, $key, $value['value']);
} else {
$item = $this->updateQuantityNotRelative($item, $key, $value['value']);
}
}
} else {
$item = $this->updateQuantityRelative($item, $key, $value);
}
参数 “为foreach()提供了无效的参数”
答案 0 :(得分:0)
尝试一下:
Cart::update($id, ['quantity' => ['relative' => false,
'value' => $qty
]
]);