/**
* Validate the payment fields when processing the checkout
*
* @since 1.0
* @see WC_Payment_Gateway::validate_fields()
* @return bool true if fields are valid, false otherwise
*/
public function validate_fields()
{
$is_valid = parent::validate_fields();
// tokenized transaction with CSC required
if ($this->supports_tokenization() && SV_WC_Helper::get_post('wc-' . $this->get_id_dasherized() . '-payment-token') && $this->csc_required()) {
$csc = SV_WC_Helper::get_post('wc-' . $this->get_id_dasherized() . '-csc');
$is_valid = $this->validate_csc($csc) && $is_valid;
}
return $is_valid;
}
