ot_lev_discount.php

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<?php
/*
  $Id: ot_lev_discount.php,v 1.0 2002/04/08 01:13:43 hpdl Exp $

  网络商店 - 吉鑫网络
 http://www.chinaifc.com

Copyright (c) 2000,2001 网络商店

      汗化版权所有吉鑫网络
*/

  class ot_lev_discount {
    var $title, $output;

    function ot_lev_discount() {
      $this->code = 'ot_lev_discount';
      $this->title = MODULE_LEV_DISCOUNT_TITLE;
      $this->description = MODULE_LEV_DISCOUNT_DESCRIPTION;
      $this->enabled = MODULE_LEV_DISCOUNT_STATUS;
      $this->sort_order = MODULE_LEV_DISCOUNT_SORT_ORDER;
      $this->include_shipping = MODULE_LEV_DISCOUNT_INC_SHIPPING;
      $this->include_tax = MODULE_LEV_DISCOUNT_INC_TAX;
      $this->calculate_tax = MODULE_LEV_DISCOUNT_CALC_TAX;
      $this->table = MODULE_LEV_DISCOUNT_TABLE;
//      $this->credit_class = true;
      $this->output = array();
    }

    function process() {
      global $order, $currencies;
      if ($this->calculate_tax == 'true') {
      	$tod_amount = $this->calculate_credit($order->info['tax'],$this->get_order_total());     
      }
      $od_amount = $this->calculate_credit($this->get_order_total(),$this->get_order_total());
      if ($od_amount>0) {
      $this->deduction = $od_amount+$tod_amount;
      $this->output[] = array('title' => $this->title . ':',
                              'text' => '<b>' . $currencies->format($od_amount) . '</b>',
                              'value' => $od_amount);
    $order->info['total'] = $order->info['total'] - $od_amount-$tod_amount;
    $order->info['tax'] = $order->info['tax'] - $tod_amount;   
}
    }
    

    
    

      

    


   
  function calculate_credit($amount, $full_amount) {
    $od_amount=0;
    $table_cost = split("[:,]" , MODULE_LEV_DISCOUNT_TABLE);
    for ($i = 0; $i < count($table_cost); $i+=2) {
          if ($full_amount >= $table_cost[$i]) {
            $od_pc = $table_cost[$i+1];
          }
        }
    $od_amount = round($amount*10)/10*$od_pc/100;
    return $od_amount;
  }


  function get_order_total() {
    global  $order;
    $order_total = $order->info['total'];
    if ($this->include_tax == 'false') $order_total=$order_total-$order->info['tax'];
    if ($this->include_shipping == 'false') $order_total=$order_total-$order->info['shipping_cost'];
    return $order_total;
  }   
    
    
    
    function check() {
      if (!isset($this->check)) {
        $check_query = tep_db_query("select configuration_value from " . TABLE_CONFIGURATION . " where configuration_key = 'MODULE_LEV_DISCOUNT_STATUS'");
        $this->check = tep_db_num_rows($check_query);
      }

      return $this->check;
    }

    function keys() {
      return array('MODULE_LEV_DISCOUNT_STATUS', 'MODULE_LEV_DISCOUNT_SORT_ORDER','MODULE_LEV_DISCOUNT_TABLE', 'MODULE_LEV_DISCOUNT_INC_SHIPPING', 'MODULE_LEV_DISCOUNT_INC_TAX','MODULE_LEV_DISCOUNT_CALC_TAX');
    }

    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 ('Display Total', 'MODULE_LEV_DISCOUNT_STATUS', 'true', 'Do you want to enable the Order Discount?', '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, date_added) values ('Sort Order', 'MODULE_LEV_DISCOUNT_SORT_ORDER', '999', 'Sort order of display.', '6', '2', now())");
      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 ('Include Shipping', 'MODULE_LEV_DISCOUNT_INC_SHIPPING', 'true', 'Include Shipping in calculation', '6', '3', '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, set_function ,date_added) values ('Include Tax', 'MODULE_LEV_DISCOUNT_INC_TAX', 'true', 'Include Tax in calculation.', '6', '4','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, set_function ,date_added) values ('Calculate Tax', 'MODULE_LEV_DISCOUNT_CALC_TAX', 'false', 'Re-calculate Tax on discounted amount.', '6', '5','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, date_added) values ('Discount Percentage', 'MODULE_LEV_DISCOUNT_TABLE', '100:7.5,250:10,500:12.5,1000:15', 'Set the price breaks and discount percentages', '6', '6', now())");
    }

    function remove() {
      $keys = '';
      $keys_array = $this->keys();
      for ($i=0; $i<sizeof($keys_array); $i++) {
        $keys .= "'" . $keys_array[$i] . "',";
      }
      $keys = substr($keys, 0, -1);

      tep_db_query("delete from " . TABLE_CONFIGURATION . " where configuration_key in (" . $keys . ")");
    }
  }
?>