Laravel 5 Validation - Return as json / ajax

题意：Laravel 5 验证 - 以 JSON/AJAX 形式返回

问题背景：

I am trying to post the values into validation and return the response as json rather than return view as given in the documentation.

我正在尝试将值提交到验证中，并以 JSON 的形式返回响应，而不是像文档中所示的那样返回视图。

$validator = Validator::make($request->all(), [
    'about' => 'min:1'
]);

if ($validator->fails()) {
    return response()->json(['errors' => ?, 'status' => 400], 200);
} 

The post is made by ajax so I need to receive the response in the ajax as well.

请求是通过 AJAX 发送的，所以我需要在 AJAX 中接收响应。

I figured out that in order to prevent refresh of the page in the returning response, I have to give it a status code of 200 outside the array. But I couldn't figure out what to give the 'errors' part. What should I write in there?

我发现为了防止在返回响应时刷新页面，我必须在数组外部给出一个 200 状态码。但我无法弄清楚应该在 'errors' 部分写什么。我应该写什么？

问题解决：

You can use $validator->messages() that returns an array which contains all the information about the validator, including errors. The json function takes the array and encodes it as a json string.

你可以使用 $validator->messages()，它返回一个包含所有验证信息的数组，包括错误。json 函数将该数组编码为 JSON 字符串。

if ($validator->fails()) {    
    return response()->json($validator->messages(), Response::HTTP_BAD_REQUEST);
}

Note: In case of validation errors, It's better not to return response code 200. You can use other status codes like 400 or Response::HTTP_BAD_REQUEST

注意：在验证错误的情况下，最好不要返回响应代码 200。你可以使用其他状态码，例如 400 或 Response::HTTP_BAD_REQUEST。