/**
* @param \Magento\Quote\Model\Quote $quote
* @return $this
*/
protected function _validateCouponCode(\Magento\Quote\Model\Quote $quote)
{
$code = $quote->getData('coupon_code');
if (strlen($code)) {
$addressHasCoupon = false;
$addresses = $quote->getAllAddresses();
if (count($addresses) > 0) {
foreach ($addresses as $address) {
if ($address->hasCouponCode()) {
$addressHasCoupon = true;
}
}
if (!$addressHasCoupon) {
$quote->setCouponCode('');
}
}
}
return $this;
}
