laravel clear 和 item in collection data

Question

我正在使用 Laravel 5.3 并且有一个查询，但需要在返回之前修改集合的数据结构。我试图通过将订单设置为空数组来清除订单，但它并不清楚（我仍然在返回的 json 中获得所有原始结果）。但是，如果我取消设置它的订单。事实上，无论我设置什么 $res->product->orders 都不起作用，除非我先取消设置。

$stores = array();    

foreach($data as $key => $res) {

           // This is a hacky way to clear the orders but it works
           $orders = array();
           unset($res->product->orders);
           $res->product->orders = $orders;

           // This is the way I would have done it but it doesn't work
           $res->product->orders = array();

           $stores[$res->store_id]['name'] = $res->product->store_name;
           $stores[$res->store_id]['data'][] = $res;
        }

Answer 1

您可以尝试集合转换任何 laravel 5.3 将在两个查询 bulider éloquent 中返回 collection

$data->transform(function($item) {
    return $item->product->orders = []; //I'm not sure here Product is object here?
});