OpenCart 🇺🇦

$status = true;

$voucher_query = $this->db->query("SELECT *, vtd.name AS theme FROM " . DB_PREFIX . "voucher v LEFT JOIN " . DB_PREFIX . "voucher_theme vt ON (v.voucher_theme_id = vt.voucher_theme_id) LEFT JOIN " . DB_PREFIX . "voucher_theme_description vtd ON (vt.voucher_theme_id = vtd.voucher_theme_id) WHERE v.code = '" . $this->db->escape($code) . "' AND vtd.language_id = '" . (int)$this->config->get('config_language_id') . "' AND v.status = '1'");

if ($voucher_query->num_rows) {
	if ($voucher_query->row['order_id']) {
		$order_query = $this->db->query("SELECT * FROM `" . DB_PREFIX . "order` WHERE order_id = '" . (int)$voucher_query->row['order_id'] . "' AND order_status_id = '" . (int)$this->config->get('config_complete_status_id') . "'");
	
		if (!$order_query->num_rows) {
			$status = false;
		}
		
		$order_voucher_query = $this->db->query("SELECT * FROM `" . DB_PREFIX . "order_voucher` WHERE order_id = '" . (int)$voucher_query->row['order_id'] . "' AND voucher_id = '" . (int)$voucher_query->row['voucher_id'] . "'");
	
		if (!$order_voucher_query->num_rows) {
			$status = false;
		}				
	}
	
	$voucher_history_query = $this->db->query("SELECT SUM(amount) AS total FROM `" . DB_PREFIX . "voucher_history` vh WHERE vh.voucher_id = '" . (int)$voucher_query->row['voucher_id'] . "' GROUP BY vh.voucher_id");

	if ($voucher_history_query->num_rows) {
		$amount = $voucher_query->row['amount'] + $voucher_history_query->row['total'];
	} else {
		$amount = $voucher_query->row['amount'];
	}
	
	if ($amount <= 0) {
		$status = false;
	}	
} else {
	$status = false;
}

if ($status) {
	return array(
		'voucher_id'       => $voucher_query->row['voucher_id'],
		'code'             => $voucher_query->row['code'],
		'from_name'        => $voucher_query->row['from_name'],
		'from_email'       => $voucher_query->row['from_email'],
		'to_name'          => $voucher_query->row['to_name'],
		'to_email'         => $voucher_query->row['to_email'],
		'voucher_theme_id' => $voucher_query->row['voucher_theme_id'],
		'theme'            => $voucher_query->row['theme'],
		'message'          => $voucher_query->row['message'],
		'image'            => $voucher_query->row['image'],
		'amount'           => $amount,
		'status'           => $voucher_query->row['status'],
		'date_added'       => $voucher_query->row['date_added']
	);
}