public function validation()
{
if ($_SERVER['PHWOOLCON_PHALCON_VERSION'] > '2010000') {
$validator = new Validation();
$validator->add('key', new StringLength(['min' => 3, 'max' => 32]));
} else {
$validator = new \Phalcon\Mvc\Model\Validator\StringLength(['field' => 'key', 'min' => 3, 'max' => 32]);
}
$this->validate($validator);
return parent::validation();
}
