public function summary()
    {
        $options = array('count' => true);

        return array(
            'user_total' => $this->user->getList($options),
            'order_total' => $this->order->getList($options),
            'review_total' => $this->review->getList($options),
            'product_total' => $this->product->getList($options)
        );
    }