Opencart Payment gateway error after opencart 2.0 upgrade

Question

We have a payment gateway called atom for our opencart store. Recently we have upgraded Opencart from 1.5.6.4 to 2.0.1.0 version. Due to this payment method stopped working. I have gone through this post to understand the changes in opencart 2.0

Below is my updated code

//catalog/controller/payment/atompay.php
<?php

class ControllerPaymentAtompay extends Controller {
    protected function index() {
        $this->language->load('payment/atompay');

        $data['button_confirm'] = $this->language->get('button_confirm');       
        $data['url2'] = $this->url->link('payment/atompay/dopayment');  
        $this->session->data['order_id'];       



        if (file_exists(DIR_TEMPLATE . $this->config->get('config_template') . '/template/payment/atompay.tpl')) {
            return $this->load->view($this->config->get('config_template') . '/template/payment/atompay.tpl', $data);
        } else {
            return $this->load->view('default/template/payment/atompay.tpl', $data);
        }




        //$this->render();      
    }
    public function dopayment() {

        $vendor = $this->config->get('atompay_vendor');
        $password = $this->config->get('atompay_password');     
        $data['action'] = $this->config->get('atompay_url');        

        $this->load->model('checkout/order');

        $order_info = $this->model_checkout_order->getOrder($this->session->data['order_id']);
        $datenow        = date("d/m/Y");
        $data['BillingCity']           = $order_info['payment_city'];
        $data['BillingPostCode']       = $order_info['payment_postcode'];   
        $data['BillingCountry']      = $order_info['payment_iso_code_2'];

        $data['login']         = $this->config->get('atompay_vendor');
        $data['pass']              = $this->config->get('atompay_password');
        $data['ttype']         = 'NBFundTransfer';
        $data['action']        = $this->config->get('atompay_url');
        $data['prodid']        = $this->config->get('atompay_prodid');
        $data['amt']               = $this->currency->format($order_info['total'], $order_info['currency_code'], $order_info['currency_value'], false);
        $data['txnid']         = $this->session->data['order_id'];
        $data['txndate']           = $datenow;
        $data['CustomerName']    = html_entity_decode($order_info['payment_firstname'] . ' ' . $order_info['payment_lastname'], ENT_QUOTES, 'UTF-8');
        $data['CustomerEMail']   = $order_info['email'];
        $data['BillingPhone']    = $order_info['telephone'];
        $data['BillingAddress1'] = $order_info['payment_address_1']."|".$data['BillingCity']."|".$data['BillingCountry'];
        $data['ru']            = $this->url->link('payment/atompay/success');

        $postFields  = "";
        $postFields .= "&login=".$data['login'];
        $postFields .= "&pass=".$data['pass'];
        $postFields .= "&ttype=".$data['ttype'];
        $postFields .= "&prodid=".$data['prodid'];
        $postFields .= "&amt=".$data['amt'];
        $postFields .= "&txncurr=INR";
        $postFields .= "&txnscamt=0";
        $postFields .= "&clientcode=".urlencode(base64_encode('123'));
        $postFields .= "&txnid=".$data['txnid'];
        $postFields .= "&date=".$datenow;
        $postFields .= "&custacc=123456789012";
        $postFields .= "&udf1=".$data['CustomerName'];
        $postFields .= "&udf2=".$data['CustomerEMail'];
        $postFields .= "&udf3=".$data['BillingPhone'];
        $postFields .= "&udf4=".$data['BillingAddress1'];
        $postFields .= "&ru=".$data['ru'];


        $sendUrl = $data['action']."?".substr($postFields,1);

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL,$data['action']);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_PORT , 80); 
        curl_setopt($ch, CURLOPT_SSLVERSION,3);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $postFields);
        $returnData = curl_exec($ch); 

        $parser = xml_parser_create('');
        xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, "UTF-8"); 
        xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
        xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1);
        xml_parse_into_struct($parser, trim($returnData), $xml_values);
        xml_parser_free($parser);

        if(isset($xml_values[3]['value'])=='' || isset($xml_values[4]['value'])=='' || isset($xml_values[5]['value'])=='')
            {
                $this->redirect($this->url->link('checkout/atomfailure&msg=1'));
            }

        $returnArray['url']         = $xml_values[3]['value'];
        $returnArray['ttype']       = $xml_values[4]['value'];
        $returnArray['tempTxnId']   = $xml_values[5]['value'];
        $returnArray['token']       = $xml_values[6]['value'];      

        $url =$returnArray['url'] ;
        $postFields  = "";
        $postFields .= "&ttype=".$returnArray['ttype'] ;
        $postFields .= "&tempTxnId=".$returnArray['tempTxnId'];
        $postFields .= "&token=".$returnArray['token'] ;
        $postFields .= "&txnStage=1";
        $url = $url."?".$postFields;

        if($returnArray['tempTxnId']=='')
            {
                $this->redirect($this->url->link('checkout/atomfailure&msg=1'));
            }
        else
            {
                header("Location: ".$url);  
            }
    }
    public function success() {
        if ($this->request->post['f_code'] =='Ok') {
            $this->load->model('checkout/order');
            $this->model_checkout_order->confirm($this->request->post['mer_txn'], $this->config->get('config_order_status_id'),"Payment Pending");
            $this->model_checkout_order->update($this->request->post['mer_txn'], $this->config->get('atompay_order_status_id'), "Payment Received", false);     
            $this->redirect($this->url->link('checkout/success'));      
        }
        else
            {
            $message = "Payment failed";
            $this->load->model('checkout/order');
            $this->model_checkout_order->confirm($this->request->post['mer_txn'], $this->config->get('config_order_status_id'),"Payment Pending");
            $this->model_checkout_order->update($this->request->post['mer_txn'], $this->config->get('config_order_status_id'), $message, false);
            //$this->error['warning'] = "Transaction Denied. Payment failed.";
            $this->redirect($this->url->link('checkout/atomfailure'));
        }
    }   
}
?>

And

//catalog/model/payment/atompay.php
<?php 
class ModelPaymentAtomPay extends Model {
    public function getMethod($address, $total) {
        $this->load->language('payment/atompay');

        $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "zone_to_geo_zone WHERE geo_zone_id = '" . (int)$this->config->get('atompay_geo_zone_id') . "' AND country_id = '" . (int)$address['country_id'] . "' AND (zone_id = '" . (int)$address['zone_id'] . "' OR zone_id = '0')");

        if ($this->config->get('atompay_total') > $total) {
            $status = false;
        } elseif (!$this->config->get('atompay_geo_zone_id')) {
            $status = true;
        } elseif ($query->num_rows) {
            $status = true;
        } else {
            $status = false;
        }   

        $method_data = array();

        if ($status) {  
            $method_data = array( 
                'code'       => 'atompay',
                'title'      => $this->language->get('text_title'),
                'terms'      => '',
                'sort_order' => $this->config->get('atompay_sort_order')
            );
        }

        return $method_data;
    }
}
?>

When i try to make an order confirm order is disabled and there are no error logs found. Am i missing something?

Answer 1

Your index() method is defined with protected access. So you are unable to call it from outside its scope. So you should change it to public function index().