public function validate() { $result = parent::validate(); $minLength = $this->config()->minimum_code_length; $code = $this->getField('Code'); if ($minLength && $code && $this->isChanged('Code') && strlen($code) < $minLength) { $result->error(_t('OrderCoupon.INVALIDMINLENGTH', 'Coupon code must be at least {length} characters in length', array('length' => $this->config()->minimum_code_length)), 'INVALIDMINLENGTH'); } return $result; }
function validate() { $result = parent::validate(); //prevent vital things from changing foreach (self::$defaults as $field => $value) { if ($this->isChanged($field)) { $result->error("{$field} should not be changed for partial use discounts."); } } return $result; }