/**
* Validate states
*
* @return bool
*/
public function isValid()
{
parent::isValid();
// state
if (!in_array($this->getState(), $this->getAllStates(false), true)) {
$this->_errors['state'][] = Mage::helper('sales')->__('Wrong state: "%s".', $this->getState());
}
return empty($this->_errors);
}
