Laravel 验证：required_if 条件始终通过

Question

As per laravel validation documentation:

required_if:anotherfield,value,... The field under validation must be present and not empty if the anotherfield field is equal to any value.

Here is my test:

    $validator = Validator::make([
        'assessment' => [
            'hasConfirmation' => 0,
            'expiredDate' => "12/2020"
        ]
    ],
        [
            'assessment.hasConfirmation' => Rule::in([0, 1, null]),
            'assessment.expiredDate' => Rule::requiredIf('assessment.hasConfirmation' === 1),

        ]);

   $validator->passes(); // always return true

I would expect that since I am not passing 1, this test should fail. But this test always passes

Answer 1

You can use a closure with requiredIf that returns a boolean to determine if the 'required' rule should be applied:

$data = [
    'assessment' => [
        'hasConfirmation' => 0,
        'expiredDate' => "12/2020"
    ]
];

$validator = Validator::make($data, [
    'assessment.hasConfirmation' => Rule::in([0, 1, null]),
    'assessment.expiredDate' => Rule::requiredIf(function () use ($data) {
        return data_get($data, 'assessment.hasConfirmation') === 1;
    });
]);