/**
* Gets the single result of the query.
* Enforces the uniqueness of the result. If the result is not unique,
* a QueryException is thrown.
*
* @param integer $hydrationMode
* @return mixed
* @throws QueryException If the query result is not unique.
*/
public function getSingleResult($hydrationMode = null)
{
$result = $this->execute(array(), $hydrationMode);
if (is_array($result)) {
if (count($result) > 1) {
throw QueryException::nonUniqueResult();
}
return array_shift($result);
} else {
if (is_object($result)) {
if (count($result) > 1) {
throw QueryException::nonUniqueResult();
}
return $result->first();
}
}
return $result;
}
