/**
  * Validates job description
  *
  * @return boolean
  */
 protected function _validateDescription()
 {
     $validator = new Zend_Validate_StringLength(2);
     if ($validator->isValid($this->category->getDescription())) {
         return true;
     }
     $msg = Sanmax_MessageStack::getInstance('SxCms_Job_Profession');
     $msg->addMessage('description', $validator->getMessages());
     return false;
 }