409 lines
12 KiB
PHP
409 lines
12 KiB
PHP
<?php
|
|
/**
|
|
* WooCommerce Shipping Class
|
|
*
|
|
* Handles shipping and loads shipping methods via hooks.
|
|
*
|
|
* @class WC_Shipping
|
|
* @version 2.6.0
|
|
* @package WooCommerce/Classes/Shipping
|
|
* @category Class
|
|
* @author WooThemes
|
|
*/
|
|
|
|
if ( ! defined( 'ABSPATH' ) ) {
|
|
exit;
|
|
}
|
|
|
|
/**
|
|
* WC_Shipping
|
|
*/
|
|
class WC_Shipping {
|
|
|
|
/** @var bool True if shipping is enabled. */
|
|
public $enabled = false;
|
|
|
|
/** @var array|null Stores methods loaded into woocommerce. */
|
|
public $shipping_methods = null;
|
|
|
|
/** @var float Stores the cost of shipping */
|
|
public $shipping_total = 0;
|
|
|
|
/** @var array Stores an array of shipping taxes. */
|
|
public $shipping_taxes = array();
|
|
|
|
/** @var array Stores the shipping classes. */
|
|
public $shipping_classes = array();
|
|
|
|
/** @var array Stores packages to ship and to get quotes for. */
|
|
public $packages = array();
|
|
|
|
/**
|
|
* @var WC_Shipping The single instance of the class
|
|
* @since 2.1
|
|
*/
|
|
protected static $_instance = null;
|
|
|
|
/**
|
|
* Main WC_Shipping Instance.
|
|
*
|
|
* Ensures only one instance of WC_Shipping is loaded or can be loaded.
|
|
*
|
|
* @since 2.1
|
|
* @static
|
|
* @return WC_Shipping Main instance
|
|
*/
|
|
public static function instance() {
|
|
if ( is_null( self::$_instance ) ) {
|
|
self::$_instance = new self();
|
|
}
|
|
return self::$_instance;
|
|
}
|
|
|
|
/**
|
|
* Cloning is forbidden.
|
|
*
|
|
* @since 2.1
|
|
*/
|
|
public function __clone() {
|
|
_doing_it_wrong( __FUNCTION__, __( 'Cheatin’ huh?', 'woocommerce' ), '2.1' );
|
|
}
|
|
|
|
/**
|
|
* Unserializing instances of this class is forbidden.
|
|
*
|
|
* @since 2.1
|
|
*/
|
|
public function __wakeup() {
|
|
_doing_it_wrong( __FUNCTION__, __( 'Cheatin’ huh?', 'woocommerce' ), '2.1' );
|
|
}
|
|
|
|
/**
|
|
* Initialize shipping.
|
|
*/
|
|
public function __construct() {
|
|
$this->enabled = wc_shipping_enabled();
|
|
|
|
if ( $this->enabled ) {
|
|
$this->init();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Initialize shipping.
|
|
*/
|
|
public function init() {
|
|
do_action( 'woocommerce_shipping_init' );
|
|
}
|
|
|
|
/**
|
|
* Shipping methods register themselves by returning their main class name through the woocommerce_shipping_methods filter.
|
|
* @return array
|
|
*/
|
|
public function get_shipping_method_class_names() {
|
|
// Unique Method ID => Method Class name
|
|
$shipping_methods = array(
|
|
'flat_rate' => 'WC_Shipping_Flat_Rate',
|
|
'free_shipping' => 'WC_Shipping_Free_Shipping',
|
|
'local_pickup' => 'WC_Shipping_Local_Pickup',
|
|
);
|
|
|
|
// For backwards compatibility with 2.5.x we load any ENABLED legacy shipping methods here
|
|
$maybe_load_legacy_methods = array( 'flat_rate', 'free_shipping', 'international_delivery', 'local_delivery', 'local_pickup' );
|
|
|
|
foreach ( $maybe_load_legacy_methods as $method ) {
|
|
$options = get_option( 'woocommerce_' . $method . '_settings' );
|
|
if ( $options && isset( $options['enabled'] ) && 'yes' === $options['enabled'] ) {
|
|
$shipping_methods[ 'legacy_' . $method ] = 'WC_Shipping_Legacy_' . $method;
|
|
}
|
|
}
|
|
|
|
return apply_filters( 'woocommerce_shipping_methods', $shipping_methods );
|
|
}
|
|
|
|
/**
|
|
* Loads all shipping methods which are hooked in. If a $package is passed some methods may add themselves conditionally.
|
|
*
|
|
* Loads all shipping methods which are hooked in.
|
|
* If a $package is passed some methods may add themselves conditionally and zones will be used.
|
|
*
|
|
* @param array $package
|
|
* @return array
|
|
*/
|
|
public function load_shipping_methods( $package = array() ) {
|
|
if ( ! empty( $package ) ) {
|
|
$debug_mode = 'yes' === get_option( 'woocommerce_shipping_debug_mode', 'no' );
|
|
$shipping_zone = WC_Shipping_Zones::get_zone_matching_package( $package );
|
|
$this->shipping_methods = $shipping_zone->get_shipping_methods( true );
|
|
|
|
// Debug output
|
|
if ( $debug_mode && ! defined( 'WOOCOMMERCE_CHECKOUT' ) && ! wc_has_notice( 'Customer matched zone "' . $shipping_zone->get_zone_name() . '"' ) ) {
|
|
wc_add_notice( 'Customer matched zone "' . $shipping_zone->get_zone_name() . '"' );
|
|
}
|
|
} else {
|
|
$this->shipping_methods = array();
|
|
}
|
|
|
|
// For the settings in the backend, and for non-shipping zone methods, we still need to load any registered classes here.
|
|
foreach ( $this->get_shipping_method_class_names() as $method_id => $method_class ) {
|
|
$this->register_shipping_method( $method_class );
|
|
}
|
|
|
|
// Methods can register themselves manually through this hook if necessary.
|
|
do_action( 'woocommerce_load_shipping_methods', $package );
|
|
|
|
// Return loaded methods
|
|
return $this->get_shipping_methods();
|
|
}
|
|
|
|
/**
|
|
* Register a shipping method.
|
|
*
|
|
* @param object|string $method Either the name of the method's class, or an instance of the method's class.
|
|
*/
|
|
public function register_shipping_method( $method ) {
|
|
if ( ! is_object( $method ) ) {
|
|
if ( ! class_exists( $method ) ) {
|
|
return false;
|
|
}
|
|
$method = new $method();
|
|
}
|
|
if ( is_null( $this->shipping_methods ) ) {
|
|
$this->shipping_methods = array();
|
|
}
|
|
$this->shipping_methods[ $method->id ] = $method;
|
|
}
|
|
|
|
/**
|
|
* Unregister shipping methods.
|
|
*/
|
|
public function unregister_shipping_methods() {
|
|
$this->shipping_methods = null;
|
|
}
|
|
|
|
/**
|
|
* Returns all registered shipping methods for usage.
|
|
*
|
|
* @access public
|
|
* @return array
|
|
*/
|
|
public function get_shipping_methods() {
|
|
if ( is_null( $this->shipping_methods ) ) {
|
|
$this->load_shipping_methods();
|
|
}
|
|
return $this->shipping_methods;
|
|
}
|
|
|
|
/**
|
|
* Get an array of shipping classes.
|
|
*
|
|
* @access public
|
|
* @return array
|
|
*/
|
|
public function get_shipping_classes() {
|
|
if ( empty( $this->shipping_classes ) ) {
|
|
$classes = get_terms( 'product_shipping_class', array( 'hide_empty' => '0', 'orderby' => 'name' ) );
|
|
$this->shipping_classes = ! is_wp_error( $classes ) ? $classes : array();
|
|
}
|
|
return apply_filters( 'woocommerce_get_shipping_classes', $this->shipping_classes );
|
|
}
|
|
|
|
/**
|
|
* Get the default method.
|
|
* @param array $available_methods
|
|
* @param boolean $current_chosen_method
|
|
* @return string
|
|
*/
|
|
private function get_default_method( $available_methods, $current_chosen_method = false ) {
|
|
if ( ! empty( $available_methods ) ) {
|
|
if ( ! empty( $current_chosen_method ) ) {
|
|
if ( isset( $available_methods[ $current_chosen_method ] ) ) {
|
|
return $available_methods[ $current_chosen_method ]->id;
|
|
} else {
|
|
foreach ( $available_methods as $method_key => $method ) {
|
|
if ( strpos( $method->id, $current_chosen_method ) === 0 ) {
|
|
return $method->id;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return current( $available_methods )->id;
|
|
}
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Calculate shipping for (multiple) packages of cart items.
|
|
*
|
|
* @param array $packages multi-dimensional array of cart items to calc shipping for
|
|
*/
|
|
public function calculate_shipping( $packages = array() ) {
|
|
$this->shipping_total = null;
|
|
$this->shipping_taxes = array();
|
|
$this->packages = array();
|
|
|
|
if ( ! $this->enabled || empty( $packages ) ) {
|
|
return;
|
|
}
|
|
|
|
// Calculate costs for passed packages
|
|
foreach ( $packages as $package_key => $package ) {
|
|
$this->packages[ $package_key ] = $this->calculate_shipping_for_package( $package, $package_key );
|
|
}
|
|
|
|
/**
|
|
* Allow packages to be reorganized after calculate the shipping.
|
|
*
|
|
* This filter can be used to apply some extra manipulation after the shipping costs are calculated for the packages
|
|
* but before Woocommerce does anything with them. A good example of usage is to merge the shipping methods for multiple
|
|
* packages for marketplaces.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param array $packages The array of packages after shipping costs are calculated.
|
|
*/
|
|
$this->packages = apply_filters( 'woocommerce_shipping_packages', $this->packages );
|
|
|
|
if ( ! is_array( $this->packages ) || empty( $this->packages ) ) {
|
|
return;
|
|
}
|
|
|
|
// Get all chosen methods
|
|
$chosen_methods = WC()->session->get( 'chosen_shipping_methods' );
|
|
$method_counts = WC()->session->get( 'shipping_method_counts' );
|
|
|
|
// Get chosen methods for each package
|
|
foreach ( $this->packages as $i => $package ) {
|
|
$chosen_method = false;
|
|
$method_count = false;
|
|
|
|
if ( ! empty( $chosen_methods[ $i ] ) ) {
|
|
$chosen_method = $chosen_methods[ $i ];
|
|
}
|
|
|
|
if ( ! empty( $method_counts[ $i ] ) ) {
|
|
$method_count = absint( $method_counts[ $i ] );
|
|
}
|
|
|
|
if ( sizeof( $package['rates'] ) > 0 ) {
|
|
|
|
// If not set, not available, or available methods have changed, set to the DEFAULT option
|
|
if ( empty( $chosen_method ) || ! isset( $package['rates'][ $chosen_method ] ) || $method_count !== sizeof( $package['rates'] ) ) {
|
|
$chosen_method = apply_filters( 'woocommerce_shipping_chosen_method', $this->get_default_method( $package['rates'], false ), $package['rates'], $chosen_method );
|
|
$chosen_methods[ $i ] = $chosen_method;
|
|
$method_counts[ $i ] = sizeof( $package['rates'] );
|
|
do_action( 'woocommerce_shipping_method_chosen', $chosen_method );
|
|
}
|
|
|
|
// Store total costs
|
|
if ( $chosen_method ) {
|
|
$rate = $package['rates'][ $chosen_method ];
|
|
|
|
// Merge cost and taxes - label and ID will be the same
|
|
$this->shipping_total += $rate->cost;
|
|
|
|
if ( ! empty( $rate->taxes ) && is_array( $rate->taxes ) ) {
|
|
foreach ( array_keys( $this->shipping_taxes + $rate->taxes ) as $key ) {
|
|
$this->shipping_taxes[ $key ] = ( isset( $rate->taxes[ $key ] ) ? $rate->taxes[ $key ] : 0 ) + ( isset( $this->shipping_taxes[ $key ] ) ? $this->shipping_taxes[ $key ] : 0 );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Save all chosen methods (array)
|
|
WC()->session->set( 'chosen_shipping_methods', $chosen_methods );
|
|
WC()->session->set( 'shipping_method_counts', $method_counts );
|
|
}
|
|
|
|
/**
|
|
* See if package is shippable.
|
|
* @param array $package
|
|
* @return boolean
|
|
*/
|
|
protected function is_package_shippable( $package ) {
|
|
$allowed = array_keys( WC()->countries->get_shipping_countries() );
|
|
return in_array( $package['destination']['country'], $allowed );
|
|
}
|
|
|
|
/**
|
|
* Calculate shipping rates for a package,
|
|
*
|
|
* Calculates each shipping methods cost. Rates are stored in the session based on the package hash to avoid re-calculation every page load.
|
|
*
|
|
* @param array $package cart items
|
|
* @param int $package_key Index of the package being calculated. Used to cache multiple package rates.
|
|
* @return array
|
|
*/
|
|
public function calculate_shipping_for_package( $package = array(), $package_key = 0 ) {
|
|
if ( ! $this->enabled || empty( $package ) || ! $this->is_package_shippable( $package ) ) {
|
|
return false;
|
|
}
|
|
|
|
// Check if we need to recalculate shipping for this package
|
|
$package_to_hash = $package;
|
|
|
|
// Remove data objects so hashes are consistent
|
|
foreach ( $package_to_hash['contents'] as $item_id => $item ) {
|
|
unset( $package_to_hash['contents'][ $item_id ]['data'] );
|
|
}
|
|
|
|
$package_hash = 'wc_ship_' . md5( json_encode( $package_to_hash ) . WC_Cache_Helper::get_transient_version( 'shipping' ) );
|
|
$session_key = 'shipping_for_package_' . $package_key;
|
|
$stored_rates = WC()->session->get( $session_key );
|
|
|
|
if ( ! is_array( $stored_rates ) || $package_hash !== $stored_rates['package_hash'] || 'yes' === get_option( 'woocommerce_shipping_debug_mode', 'no' ) ) {
|
|
// Calculate shipping method rates
|
|
$package['rates'] = array();
|
|
|
|
foreach ( $this->load_shipping_methods( $package ) as $shipping_method ) {
|
|
// Shipping instances need an ID
|
|
if ( ! $shipping_method->supports( 'shipping-zones' ) || $shipping_method->get_instance_id() ) {
|
|
$package['rates'] = $package['rates'] + $shipping_method->get_rates_for_package( $package ); // + instead of array_merge maintains numeric keys
|
|
}
|
|
}
|
|
|
|
// Filter the calculated rates
|
|
$package['rates'] = apply_filters( 'woocommerce_package_rates', $package['rates'], $package );
|
|
|
|
// Store in session to avoid recalculation
|
|
WC()->session->set( $session_key, array(
|
|
'package_hash' => $package_hash,
|
|
'rates' => $package['rates'],
|
|
) );
|
|
} else {
|
|
$package['rates'] = $stored_rates['rates'];
|
|
}
|
|
|
|
return $package;
|
|
}
|
|
|
|
/**
|
|
* Get packages.
|
|
* @return array
|
|
*/
|
|
public function get_packages() {
|
|
return $this->packages;
|
|
}
|
|
|
|
/**
|
|
* Reset shipping.
|
|
*
|
|
* Reset the totals for shipping as a whole.
|
|
*/
|
|
public function reset_shipping() {
|
|
unset( WC()->session->chosen_shipping_methods );
|
|
$this->shipping_total = null;
|
|
$this->shipping_taxes = array();
|
|
$this->packages = array();
|
|
}
|
|
|
|
/**
|
|
* @deprecated 2.6.0 Was previously used to determine sort order of methods, but this is now controlled by zones and thus unused.
|
|
*/
|
|
public function sort_shipping_methods() {
|
|
_deprecated_function( 'sort_shipping_methods', '2.6', '' );
|
|
return $this->shipping_methods;
|
|
}
|
|
}
|