src/WorkerF/DB/Drivers/PDODriver.php
public function having()
    {
        $operator = 'AND';

        // is the first time call where method ?
        if ($this->_having_str == '') {
            $this->_having_str = ' HAVING ';
        } else {
            $this->_having_str .= ' '.$operator.' ';
        }
        // build attribute, bind params
        $this->_condition_constructor(func_num_args(), func_get_args(), $this->_having_str);

        return $this;
    }
public function having()
    {
        $operator = 'AND';

        // is the first time call where method ?
        if ($this->_having_str == '') {
            $this->_having_str = ' HAVING ';
        } else {
            $this->_having_str .= ' '.$operator.' ';
        }
        // build attribute, bind params
        $this->_condition_constructor(func_num_args(), func_get_args(), $this->_having_str);

        return $this;
    }
build having string

@return  self