How to add a Fee to COD payment?

[vritzka]

Hello,

 

I just installed the responsive template (works fantastic) together with the new OSC version

 

Could somebody please help me modify the COD payment module so that it adds a 6.50 EUR fee for orders paid via COD?

 

In which function would I add my code to add a fee?

 

Here is the code of cod.php for reference:

 

 

<?php
/*
  $Id$


  osCommerce, Open Source E-Commerce Solutions
  http://www.oscommerce.com


  Copyright (c) 2014 osCommerce


  Released under the GNU General Public License
*/


  class cod {
    var $code, $title, $description, $enabled;


    function cod() {
      global $order;


      $this->code = 'cod';
      $this->title = MODULE_PAYMENT_COD_TEXT_TITLE;
      $this->description = MODULE_PAYMENT_COD_TEXT_DESCRIPTION;
      $this->sort_order = defined('MODULE_PAYMENT_COD_SORT_ORDER') ? MODULE_PAYMENT_COD_SORT_ORDER : 0;
      $this->enabled = defined('MODULE_PAYMENT_COD_STATUS') && (MODULE_PAYMENT_COD_STATUS == 'True') ? true : false;
      $this->order_status = defined('MODULE_PAYMENT_COD_ORDER_STATUS_ID') && ((int)MODULE_PAYMENT_COD_ORDER_STATUS_ID > 0) ? (int)MODULE_PAYMENT_COD_ORDER_STATUS_ID : 0;


      if ( $this->enabled === true ) {
        if ( isset($order) && is_object($order) ) {
          $this->update_status();
        }
      }
    }


    function update_status() {
      global $order;


      if ( ($this->enabled == true) && ((int)MODULE_PAYMENT_COD_ZONE > 0) ) {
        $check_flag = false;
        $check_query = tep_db_query("select zone_id from " . TABLE_ZONES_TO_GEO_ZONES . " where geo_zone_id = '" . MODULE_PAYMENT_COD_ZONE . "' and zone_country_id = '" . $order->delivery['country']['id'] . "' order by zone_id");
        while ($check = tep_db_fetch_array($check_query)) {
          if ($check['zone_id'] < 1) {
            $check_flag = true;
            break;
          } elseif ($check['zone_id'] == $order->delivery['zone_id']) {
            $check_flag = true;
            break;
          }
        }


        if ($check_flag == false) {
          $this->enabled = false;
        }
      }


// disable the module if the order only contains virtual products
      if ($this->enabled == true) {
        if ($order->content_type == 'virtual') {
          $this->enabled = false;
        }
      }
    }


    function javascript_validation() {
      return false;
    }


    function selection() {
      return array('id' => $this->code,
                   'module' => $this->title);
    }


    function pre_confirmation_check() {
      return false;
    }


    function confirmation() {
      return false;
    }


    function process_button() {
      return false;
    }


    function before_process() {
      return false;
    }


    function after_process() {
      return false;
    }


    function get_error() {
      return false;
    }


    function check() {
      if (!isset($this->_check)) {
        $check_query = tep_db_query("select configuration_value from " . TABLE_CONFIGURATION . " where configuration_key = 'MODULE_PAYMENT_COD_STATUS'");
        $this->_check = tep_db_num_rows($check_query);
      }
      return $this->_check;
    }


    function install() {
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, date_added) values ('Enable Cash On Delivery Module', 'MODULE_PAYMENT_COD_STATUS', 'True', 'Do you want to accept Cash On Delevery payments?', '6', '1', 'tep_cfg_select_option(array(\'True\', \'False\'), ', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, use_function, set_function, date_added) values ('Payment Zone', 'MODULE_PAYMENT_COD_ZONE', '0', 'If a zone is selected, only enable this payment method for that zone.', '6', '2', 'tep_get_zone_class_title', 'tep_cfg_pull_down_zone_classes(', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, date_added) values ('Sort order of display.', 'MODULE_PAYMENT_COD_SORT_ORDER', '0', 'Sort order of display. Lowest is displayed first.', '6', '0', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, use_function, date_added) values ('Set Order Status', 'MODULE_PAYMENT_COD_ORDER_STATUS_ID', '0', 'Set the status of orders made with this payment module to this value', '6', '0', 'tep_cfg_pull_down_order_statuses(', 'tep_get_order_status_name', now())");
   }


    function remove() {
      tep_db_query("delete from " . TABLE_CONFIGURATION . " where configuration_key in ('" . implode("', '", $this->keys()) . "')");
    }


    function keys() {
      return array('MODULE_PAYMENT_COD_STATUS', 'MODULE_PAYMENT_COD_ZONE', 'MODULE_PAYMENT_COD_ORDER_STATUS_ID', 'MODULE_PAYMENT_COD_SORT_ORDER');
    }
  }
?>

 

kind regards,

 

Volker

Edited January 26, 2015 by vritzka