php - Laravel 验证 : validate field only if another is present

Question

我想仅在存在“needs_login”时验证“account_id”。我这样做了:

$rules = [
    'account_id' => ['required_with:needs_login','custom_validation']
];

但它不起作用，因为如果 Needs_login 字段不存在但 account_id 有一些值，那么它会尝试执行“custom_validation”。
我也试图把“有时”参数

$rules = [
    'account_id' => ['required_with:needs_login', 'sometimes', 'custom_validation']
];

但它没有用。

有任何想法吗？

P.S.: Remember that I wanted to validate the account_id only if needs_login is present, not to check if account_id is present if needs_login does.

Answer 1

你试过required_if吗？

$rules = [
    'account_id' => ['required_if:needs_login,1']
];