I want a Laravel validation for specific condition (if the check box is checked then this validation should work)

Question

I have a form that I want to display only when the checkbox is checked using jQuery. I've also applied Laravel validation in the controller by sending ajax and its working perfectly for me.

$validator = Validator::make($request->all(), [
                    'shipping_company' => 'required',
                    'shipping_first_name' => 'required',
                    'shipping_last_name' => 'required',
                    'shipping_address' => 'required',
                    'shipping_address_2' => 'required',
                    'shipping_city' => 'required',
                    'shipping_postal_code' => 'required',
                    'shipping_country' => 'required',
                    'shipping_state' => 'required',
                ]);

The form fields are now only visible on the frontend when this specific checkbox is checked.

<div class="form-check tfu-cart-ship-check p-1 my-2 ">
                        <input class="form-check-input m-1" name="shipping_checkbox" type="checkbox" value="" id="tfu-ship-check">
                        <label class="form-check-label" for="tfu-ship-check">
                        <strong> Ship to different address</strong>
                        </label>
                    </div>

The validation works fine when the form is submitted, but it applies to both cases, regardless of whether the checkbox is checked or not. I tried using Laravel validation to make it work only when the checkbox is checked, but it’s not working as expected.

I tried this:

$validator = Validator::make($request->all(), [
    'shipping_company' => 'sometimes|required',
    'shipping_first_name' => 'sometimes|required',
    'shipping_last_name' => 'sometimes|required',
    'shipping_address' => 'sometimes|required',
    'shipping_address_2' => 'sometimes|required',
    'shipping_city' => 'sometimes|required',
    'shipping_postal_code' => 'sometimes|required',
    'shipping_country' => 'sometimes|required',
    'shipping_state' => 'sometimes|required',
]);

$validator->sometimes(['shipping_company', 'shipping_first_name', 'shipping_last_name', 'shipping_address', 'shipping_address_2', 'shipping_city', 'shipping_postal_code', 'shipping_country', 'shipping_state'], 'required', function ($input) {
    return $input->shipping_checkbox;
});

Can anyone help me out.

Answer 1

You need to ensure the checkbox has a proper name and value that get sent in the request (for example, name="shipping_checkbox" and value="1") and then use either required_if:shipping_checkbox,1 on each field or make sure sometimes checks for the exact value of the checkbox (e.g., return $input->shipping_checkbox == '1'). This way, validation only applies if the checkbox is actually checked and present in the request.

simplified example of how you can fix it:

‌Blade:

<div class="form-check tfu-cart-ship-check p-1 my-2">
    <input class="form-check-input m-1" name="shipping_checkbox" type="checkbox" value="1" id="tfu-ship-check">
    <label class="form-check-label" for="tfu-ship-check">
        <strong>Ship to different address</strong>
    </label>
</div>

Validation:

$validator = Validator::make($request->all(), [
    'shipping_company'     => 'required_if:shipping_checkbox,1',
    'shipping_first_name'  => 'required_if:shipping_checkbox,1',
    'shipping_last_name'   => 'required_if:shipping_checkbox,1',
    'shipping_address'     => 'required_if:shipping_checkbox,1',
    'shipping_address_2'   => 'required_if:shipping_checkbox,1',
    'shipping_city'        => 'required_if:shipping_checkbox,1',
    'shipping_postal_code' => 'required_if:shipping_checkbox,1',
    'shipping_country'     => 'required_if:shipping_checkbox,1',
    'shipping_state'       => 'required_if:shipping_checkbox,1',
]);

those fields become required only when the checkbox (with value 1) is checked.