public function getConditions()
    {
        $conditions = array();
        for ($i = 0; $i < $this->count; $i++) {
            $conditions[] = array(
                'left'     => $this->getLeftColumn($i),
                'operator' => $this->getOperator($i),
                'right'    => $this->getRightColumn($i)
            );
        }

        return $conditions;
    }