woocommerce/classes/shipping/shipping_method.class.php

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<?php
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/**
* WooCommerce Shipping Method Class
*
* Extended by shipping methods to handle shipping calculations etc.
*
* @class woocommerce_shipping_method
* @package WooCommerce
* @category Shipping
* @author WooThemes
*/
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class woocommerce_shipping_method extends woocommerce_settings_api {
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var $id;
var $method_title; // Method title
var $title; // User set title
var $tax_status;
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var $availability;
var $countries;
var $type;
var $fee = 0;
var $min_amount = null;
var $enabled = false;
/**
* Rates
*
* This is an array of rates - methods must populate this array to register shipping costs
*/
var $rates = array(); // This is an array of rates - methods must populate this array to register shipping costs
/**
* Add a rate
*
* A a shipping rate. If taxes are not set they will be calculated based on cost.
*/
function add_rate( $args = array() ) {
global $woocommerce;
$defaults = array(
'id' => '',
'label' => '',
'cost' => '0',
'taxes' => '',
'calc_tax' => 'per_order'
);
$args = wp_parse_args( $args, $defaults );
extract( $args );
// Id and label are required
if (!$id || !$label) return;
// Taxes - if not an array and not set to false, calc tax based on cost and passed calc_tax variable
// This saves shipping methods having to do compelex tax calculations
if (!is_array($taxes) && $taxes!==false && $cost>0 && get_option('woocommerce_calc_taxes')=='yes' && $this->tax_status=='taxable' ) :
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$_tax = new woocommerce_tax();
$taxes = array();
switch ($calc_tax) :
case "per_item" :
if (sizeof($woocommerce->cart->get_cart())>0) : foreach ($woocommerce->cart->get_cart() as $item_id => $values) :
$_product = $values['data'];
if ($values['quantity']>0 && $_product->needs_shipping() && $_product->is_shipping_taxable()) :
$rates = $_tax->get_shipping_tax_rates( $_product->get_tax_class() );
$item_taxes = $_tax->calc_shipping_tax( $cost, $rates );
// Sum the item taxes
foreach (array_keys($taxes + $item_taxes) as $key) :
$taxes[$key] = (isset($item_taxes[$key]) ? $item_taxes[$key] : 0) + (isset($taxes[$key]) ? $taxes[$key] : 0);
endforeach;
endif;
endforeach; endif;
break;
case "per_order" :
default :
$rates = $_tax->get_shipping_tax_rates();
$taxes = $_tax->calc_shipping_tax( $cost, $rates );
break;
endswitch;
endif;
$this->rates[] = new woocommerce_shipping_rate( $id, $label, $cost, $taxes );
}
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function is_available() {
global $woocommerce;
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if ($this->enabled=="no")
return false;
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if (isset($woocommerce->cart->cart_contents_total) && isset($this->min_amount) && $this->min_amount && $this->min_amount > $woocommerce->cart->cart_contents_total)
return false;
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$ship_to_countries = '';
if ($this->availability == 'specific') :
$ship_to_countries = $this->countries;
else :
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if (get_option('woocommerce_allowed_countries')=='specific') :
$ship_to_countries = get_option('woocommerce_specific_allowed_countries');
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endif;
endif;
if (is_array($ship_to_countries)) :
if (!in_array($woocommerce->customer->get_shipping_country(), $ship_to_countries)) return false;
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endif;
return apply_filters( 'woocommerce_shipping_' . $this->id . '_is_available', true );
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}
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function get_fee( $fee, $total ) {
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if (strstr($fee, '%')) :
return ($total/100) * str_replace('%', '', $fee);
else :
return $fee;
endif;
}
}
/**
* WooCommerce Shipping Rate Class
*
* Simple Class for storing rates.
*/
class woocommerce_shipping_rate {
var $id = '';
var $label = '';
var $cost = 0;
var $taxes = array();
function woocommerce_shipping_rate( $id, $label, $cost, $taxes ) {
$this->id = $id;
$this->label = $label;
$this->cost = $cost;
$this->taxes = ($taxes) ? $taxes : array();
}
function get_shipping_tax() {
$taxes = 0;
if ($this->taxes && sizeof($this->taxes)>0) :
$taxes = array_sum($this->taxes);
endif;
return $taxes;
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}
}