Element_OphTrOperationbooking_Operation::validateReferral PHP Méthode

    public function validateReferral($attribute, $params)
    {
        if (!$this->canChangeReferral() && $this->{$attribute} != $this->_original_referral_id) {
            $this->addError($attribute, 'Referral cannot be changed after an operation has been scheduled');
        } elseif ($referral_id = $this->{$attribute}) {
            if (!($referral = Referral::model()->findByPk($referral_id))) {
                throw new Exception('Invalid referral id set on ' . get_class($this));
            }
            if ($referral->patient_id != $this->getPatient()->id) {
                $this->addError($attribute, 'Referral must be for the patient of the event');
            }
        }
    }