How do I restrict payment methods?

There may be circumstances where a retailer wishes to restrict the payment methods that are available to a customer when checking out. Whilst a payment gateway may have restrictions, these may not be sufficient, or the limitations may need to apply to multiple methods.

The payment methods can be refined for a store, by adding a cart validator resolver, for example:

\Aero\Payment\Models\PaymentMethod::setCartValidator(function ($method, $cart) {
    if ($method->driver === 'cash' && $cart->total()->inc()->value > 1000) {
        return false;
    }

    return $method->getDriver()->validateForCart($cart);
});

Note that the validator falls back to the driver validation.