lithium\data\source\Database::_error PHP Method

    protected function _error($sql)
    {
        $params = compact('sql');
        return $this->_filter(__METHOD__, $params, function ($self, $params) {
            $sql = $params['sql'];
            list($code, $error) = $self->error();
            throw new QueryException("{$sql}: {$error}", $code);
        });
    }