/**
  *  get db object by record
  *  @param  row
  *  @return TahScan object
  */
 public function mapRow($row)
 {
     $object = new Inbox();
     $object->setId($row['id']);
     $object->setParentId($row['parent_id']);
     $object->setFromEmail($row['from_email']);
     $object->setToEmail($row['to_email']);
     $object->setFromName($row['from_name']);
     $object->setToName($row['to_name']);
     $object->setSubject($row['subject']);
     $object->setBodySnippet($row['body_snippet']);
     $object->setEmailCreateTime(strtotime($row['email_create_time']));
     $object->setMessageId($row['message_id']);
     $object->setReferenceMessageIds($row['reference_message_ids']);
     $object->setProperties(unserialize($row['properties']));
     return $object;
 }