public function doUnKnowUpdate(PhrasesEntity $word)
{
// invalid setting
if ($word->getStatus() != $this->marker->getStatus()) {
throw new EngRuntimeException("status doesn't match!");
}
$newFailureCount = $word->getFailure() + 1;
if ($newFailureCount >= $this->marker->getFailure()) {
$newStatus = $this->getNextStatusWhenFail($word->getStatus());
if ($newStatus != $word->getStatus()) {
$word->setStatus($newStatus);
$word->setSuccess(0);
$word->setFailure(0);
} else {
$word->setFailure($newFailureCount);
}
} else {
$word->setFailure($newFailureCount);
}
}