[英]Update items to shopping cart(package-->darryldecode) Laravel 5.7
My blade file--->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() !!}
route file-->路由文件-->
Route::post('/cart/update', 'CartController@updateCart');
controller file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');
} }
when i'm echo the file and hit UPDATE btn then i get result both of this id & qty number... return , on the other hand, get some error... ErrorException (E_WARNING) Invalid argument supplied for foreach()当我回显文件并点击 UPDATE btn 然后我得到这个 id 和数量的结果...返回,另一方面,得到一些错误... ErrorException (E_WARNING) Invalid argument supplied for foreach()
C:\xampp\htdocs\larashop\vendor\darryldecode\cart\src\Darryldecode\Cart\Cart.php * update a cart * * @param $id * @param $data * * the $data will be an associative array, you don't need to pass all the data, only the key value * of the item you want to update on it * @return bool */ public function update($id, $data) { if($this->fireEvent('updating', $data) === false) { return false; C:\xampp\htdocs\larashop\vendor\darryldecode\cart\src\Darryldecode\Cart\Cart.php * 更新购物车 * * @param $id * @param $data * * $data 将是一个关联数组,你不需要传递所有的数据,只需要传递你想更新的项目的键值 * @return bool */ public function update($id, $data) { if($this->fireEvent( '更新', $data) === false) { return 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, $value);
}
Arguments "Invalid argument supplied for foreach()"参数“为 foreach() 提供的参数无效”
try this:试试这个:
Cart::update($id, ['quantity' => ['relative' => false,
'value' => $qty
]
]);
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