Very Simple Auth Helper

Instead of using getResult(); which is for multiple records use getRow(); single record.

You could also use $this->db->countAllResults(); Instead of count();

- countAllResults() will execute query again and then count results, so only use this method when you not yet executed query
- count($query->getResult()) only count nums of result return, so use this when you executed query
- count($query->getResult()) will faster count($query->getRow()), because getRow will call ->getFirstRow before count

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- to check have result or not, should use empty($query->getResult())
- to check nums rows, should use count($query->getResult())

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