OEModule\PASAPI\resources\Appointment::validate PHP 메소드

    public function validate()
    {
        $mapping_keys = array();
        if (isset($this->AppointmentMappingItems)) {
            foreach ($this->AppointmentMappingItems as $item) {
                if (in_array($item->Key, $mapping_keys)) {
                    $this->addError("Duplicate key {$item->Key} is not allowed.");
                }
            }
        }
        return parent::validate();
    }