/**
* Executes a query, and returns the first found row's first column's value.
* Throws a warning if no rows were found.
*
* @param string $sql The SQL string.
* @param mixed $binds The binds or a single bind.
*
* @return string|int
**/
public function getOne($sql, $binds = array())
{
$stmt = new AMysql_Statement($this);
$stmt->query($sql, $binds);
return $stmt->result(0, 0);
}
