我想创建一个向其提交表单的Web服务，并在出现错误的情况下返回一个JSON编码列表，告诉我哪个字段是错误的。

目前，我仅收到错误消息列表，但没有html ID或出现错误的字段名称

这是我当前的代码

public function saveAction(Request $request)
{
    $em = $this->getDoctrine()->getManager();

    $form = $this->createForm(new TaskType(), new Task());

    $form->handleRequest($request);

    $task = $form->getData();

    if ($form->isValid()) {

        $em->persist($task);
        $em->flush();

        $array = array( 'status' => 201, 'msg' => 'Task Created');

    } else {

        $errors = $form->getErrors(true, true);

        $errorCollection = array();
        foreach($errors as $error){
               $errorCollection[] = $error->getMessage();
        }

        $array = array( 'status' => 400, 'errorMsg' => 'Bad Request', 'errorReport' => $errorCollection); // data to return via JSON
    }

    $response = new Response( json_encode( $array ) );
    $response->headers->set( 'Content-Type', 'application/json' );

    return $response;
}

这会给我一个像

{
"status":400,
"errorMsg":"Bad Request",
"errorReport":{
        "Task cannot be blank",
        "Task date needs to be within the month"
    }
}

但是我真正想要的是

{
"status":400,
"errorMsg":"Bad Request",
"errorReport":{
        "taskfield" : "Task cannot be blank",
        "taskdatefield" : "Task date needs to be within the month"
    }
}

我该如何实现？