Laravel中非验证场景下抛出自定义验证异常响应

class MyController extends Controller
{
    public function init(Request $request)
    {
        // 假设这里会调用一个深层函数
        $this->checkBusinessLogic($request);

        // 如果checkBusinessLogic中没有抛出异常，则执行后续代码
        return response()->json(['message' => 'Operation successful']);
    }

    private function checkBusinessLogic(Request $request)
    {
        // ... 某些业务逻辑检查 ...
        if ($someConditionFails) {
            // 如何在这里直接返回一个验证失败的响应，而无需在init中再次处理？
            // 例如，我们不希望写成：
            // return response()->json(['errors' => ['email' => ['The email is invalid.']]], 422);
            // 因为这只会返回给init函数，init函数还需要再return一次
        }

        // ... 更多业务逻辑 ...
    }
}

// 这种方式增加了代码的耦合度和复杂性
public function init(Request $request)
{
    $response = $this->checkBusinessLogic($request);

    if ($response instanceof \Illuminate\Http\JsonResponse && $response->status() === 422) {
        return $response; // 需要显式返回
    }

    // ... 后续代码 ...
}

private function checkBusinessLogic(Request $request)
{
    if ($someConditionFails) {
        return response()->json(['errors' => ['email' => ['The email is invalid.']]], 422);
    }
    // ...
    return null; // 或者返回一个成功标志
}

use Illuminate\Validation\ValidationException;

class MyController extends Controller
{
    public function init(Request $request)
    {
        // 调用深层函数
        $this->checkBusinessLogic($request);

        // 如果没有抛出异常，则执行后续代码
        return response()->json(['message' => 'Operation successful'], 200);
    }

    private function checkBusinessLogic(Request $request)
    {
        // 假设这里进行了一项业务规则检查
        $data = $request->all();

        if (!isset($data['product_id']) || !is_numeric($data['product_id'])) {
            // 业务规则失败：产品ID无效
            throw ValidationException::withMessages([
                'product_id' => ['The product ID is required or invalid.'],
            ]);
        }

        // 假设这里检查了用户是否拥有特定权限
        if (!$request->user()->can('perform-action')) {
            // 权限检查失败
            throw ValidationException::withMessages([
                'authorization' => ['You do not have permission to perform this action.'],
            ]);
        }

        // 如果所有检查都通过，则不抛出异常，函数正常执行完毕
        // 可以在这里执行后续操作，或直接返回
        return true;
    }
}

{
    "message": "The given data was invalid.",
    "errors": {
        "product_id": [
            "The product ID is required or invalid."
        ]
    }
}