lib/Sirel/SelectManager.php
function leftJoin($relation, $expr = null)
    {
        return $this->join($relation, $expr, Join::LEFT);
    }
function leftJoin($relation, $expr = null)
    {
        return $this->join($relation, $expr, Join::LEFT);
    }
function leftJoin ( $ relation , $ expr = null ) { return $ this -> join ( $ relation , $ expr , Join :: LEFT ) ; }
Convenience Method for creating LEFT JOINs
Convenience Method for creating LEFT JOINs