woocommerce/classes/shipping/shipping.class.php

128 lines
3.0 KiB
PHP

<?php
/**
* WooCommerce Shipping Class
*
* Handles shipping and loads shipping methods via hooks.
*
* @class woocommerce_shipping
* @package WooCommerce
* @category Shipping
* @author WooThemes
*/
class woocommerce_shipping {
private static $_instance;
public static $enabled = false;
public static $shipping_methods = array();
public static $chosen_method = null;
public static $shipping_total = 0;
public static $shipping_tax = 0;
public static $shipping_label = null;
public static function init() {
if (get_option('woocommerce_calc_shipping')!='no') self::$enabled = true;
do_action('woocommerce_shipping_init');
$load_methods = apply_filters('woocommerce_shipping_methods', array());
foreach ($load_methods as $method) :
self::$shipping_methods[] = &new $method();
endforeach;
}
public static function get() {
if (!isset(self::$_instance)) {
$c = __CLASS__;
self::$_instance = new $c;
}
return self::$_instance;
}
function get_available_shipping_methods() {
if (self::$enabled=='yes') :
$_available_methods = array();
foreach ( self::$shipping_methods as $method ) :
if ($method->is_available()) $_available_methods[$method->id] = $method;
endforeach;
return $_available_methods;
endif;
}
function reset_shipping_methods() {
foreach ( self::$shipping_methods as $method ) :
$method->chosen = false;
$method->shipping_total = 0;
$method->shipping_tax = 0;
endforeach;
}
function calculate_shipping() {
if (self::$enabled=='yes') :
self::$shipping_total = 0;
self::$shipping_tax = 0;
self::$shipping_label = null;
$_cheapest_fee = '';
$_cheapest_method = '';
if (isset($_SESSION['_chosen_method_id'])) $chosen_method = $_SESSION['_chosen_method_id']; else $chosen_method = '';
$calc_cheapest = false;
if (!$chosen_method || empty($chosen_method)) $calc_cheapest = true;
self::reset_shipping_methods();
$_available_methods = self::get_available_shipping_methods();
if (sizeof($_available_methods)>0) :
foreach ($_available_methods as $method) :
$method->calculate_shipping();
$fee = $method->shipping_total;
if ($fee < $_cheapest_fee || !is_numeric($_cheapest_fee)) :
$_cheapest_fee = $fee;
$_cheapest_method = $method->id;
endif;
endforeach;
// Default to cheapest
if ($calc_cheapest || !isset($_available_methods[$chosen_method])) :
$chosen_method = $_cheapest_method;
endif;
if ($chosen_method) :
$_available_methods[$chosen_method]->choose();
self::$shipping_total = $_available_methods[$chosen_method]->shipping_total;
self::$shipping_tax = $_available_methods[$chosen_method]->shipping_tax;
self::$shipping_label = $_available_methods[$chosen_method]->title;
endif;
endif;
endif;
}
function reset_shipping() {
self::$shipping_total = 0;
self::$shipping_tax = 0;
self::$shipping_label = null;
}
}