OpenCart 🇺🇦

if ($this->customer->isLogged()) {
	$customer_group_id = $this->customer->getCustomerGroupId();
} else {
	$customer_group_id = $this->config->get('config_customer_group_id');
}		

$query = $this->db->query("SELECT COUNT(DISTINCT ps.product_id) AS total FROM " . DB_PREFIX . "product_special ps LEFT JOIN " . DB_PREFIX . "product p ON (ps.product_id = p.product_id) LEFT JOIN " . DB_PREFIX . "product_to_store p2s ON (p.product_id = p2s.product_id) WHERE p.status = '1' AND p.date_available <= NOW() AND p2s.store_id = '" . (int)$this->config->get('config_store_id') . "' AND ps.customer_group_id = '" . (int)$customer_group_id . "' AND ((ps.date_start = '0000-00-00' OR ps.date_start < NOW()) AND (ps.date_end = '0000-00-00' OR ps.date_end > NOW()))");

if (isset($query->row['total'])) {
	return $query->row['total'];
} else {
	return 0;	
}