laravel清除并收集数据中的项目

Question

我正在使用Laravel 5.3并进行查询，但需要在返回之前修改集合的数据结构。我试图通过将它们设置为一个空数组来清除这些命令，但它不清除（我仍然在返回的json中获得所有原始结果）。但是，如果我取消了它的工作顺序。事实上，无论我设置$ res-> product->命令，它都不起作用，除非我先将其解除。

$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

你可以尝试集合任意变换laravel 5.3将同时在查询bulider返回collection，雄辩

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