Laravel分形变压器，如何通过并获得额外的变量

您可以将额外的参数传递给转换器构造函数。

class SymptomTransformer extends TransformerAbstract
{
     protected $extra;

     public function __construct($extra) {
         $this->extra = $exta;
     }

      public function transform(Symptom $row)
      {  
         // need to get user_id here
         dd($this->extra);
         return [
            'id' => $row->id,
            'name' => $row->name,
            'next_type' => $next,
            'allow' => $allow
        ];
      }
}

然后打电话

return $this->response->paginator($rows, new SymptomTransformer(['user_id' => $user_id]));