woocommerce/includes/class-wc-cart.php

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<?php
/**
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* WooCommerce cart
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*
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* The WooCommerce cart class stores cart data and active coupons as well as handling customer sessions and some cart related urls.
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* The cart class also has a price calculation function which calls upon other classes to calculate totals.
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*
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* @package WooCommerce\Classes
* @version 2.1.0
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*/
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defined( 'ABSPATH' ) || exit;
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require_once WC_ABSPATH . 'includes/legacy/class-wc-legacy-cart.php';
require_once WC_ABSPATH . 'includes/class-wc-cart-fees.php';
require_once WC_ABSPATH . 'includes/class-wc-cart-session.php';
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/**
* WC_Cart class.
*/
class WC_Cart extends WC_Legacy_Cart {
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/**
* Contains an array of cart items.
*
* @var array
*/
public $cart_contents = array();
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/**
* Contains an array of removed cart items so we can restore them if needed.
*
* @var array
*/
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public $removed_cart_contents = array();
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/**
* Contains an array of coupon codes applied to the cart.
*
* @var array
*/
public $applied_coupons = array();
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/**
* This stores the chosen shipping methods for the cart item packages.
*
* @var array
*/
protected $shipping_methods;
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/**
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* Total defaults used to reset.
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*
* @var array
*/
protected $default_totals = array(
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'subtotal' => 0,
'subtotal_tax' => 0,
'shipping_total' => 0,
'shipping_tax' => 0,
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'shipping_taxes' => array(),
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'discount_total' => 0,
'discount_tax' => 0,
'cart_contents_total' => 0,
'cart_contents_tax' => 0,
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'cart_contents_taxes' => array(),
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'fee_total' => 0,
'fee_tax' => 0,
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'fee_taxes' => array(),
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'total' => 0,
'total_tax' => 0,
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);
/**
* Store calculated totals.
*
* @var array
*/
protected $totals = array();
/**
* Reference to the cart session handling class.
*
* @var WC_Cart_Session
*/
protected $session;
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/**
* Reference to the cart fees API class.
*
* @var WC_Cart_Fees
*/
protected $fees_api;
/**
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* Constructor for the cart class. Loads options and hooks in the init method.
*/
public function __construct() {
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$this->session = new WC_Cart_Session( $this );
$this->fees_api = new WC_Cart_Fees( $this );
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// Register hooks for the objects.
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$this->session->init();
add_action( 'woocommerce_add_to_cart', array( $this, 'calculate_totals' ), 20, 0 );
add_action( 'woocommerce_applied_coupon', array( $this, 'calculate_totals' ), 20, 0 );
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add_action( 'woocommerce_cart_item_removed', array( $this, 'calculate_totals' ), 20, 0 );
add_action( 'woocommerce_cart_item_restored', array( $this, 'calculate_totals' ), 20, 0 );
add_action( 'woocommerce_check_cart_items', array( $this, 'check_cart_items' ), 1 );
add_action( 'woocommerce_check_cart_items', array( $this, 'check_cart_coupons' ), 1 );
add_action( 'woocommerce_after_checkout_validation', array( $this, 'check_customer_coupons' ), 1, 2 );
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}
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/**
* When cloning, ensure object properties are handled.
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*
* These properties store a reference to the cart, so we use new instead of clone.
*/
public function __clone() {
$this->session = clone $this->session;
$this->fees_api = clone $this->fees_api;
}
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/*
|--------------------------------------------------------------------------
| Getters.
|--------------------------------------------------------------------------
|
| Methods to retrieve class properties and avoid direct access.
*/
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/**
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* Gets cart contents.
*
* @since 3.2.0
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* @return array of cart items
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*/
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public function get_cart_contents() {
return apply_filters( 'woocommerce_get_cart_contents', (array) $this->cart_contents );
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}
/**
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* Return items removed from the cart.
*
* @since 3.2.0
* @return array
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*/
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public function get_removed_cart_contents() {
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return (array) $this->removed_cart_contents;
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}
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/**
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* Gets the array of applied coupon codes.
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*
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* @return array of applied coupons
*/
public function get_applied_coupons() {
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return (array) $this->applied_coupons;
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}
/**
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* Return all calculated coupon totals.
*
* @since 3.2.0
* @return array
*/
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public function get_coupon_discount_totals() {
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return (array) $this->coupon_discount_totals;
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}
/**
* Return all calculated coupon tax totals.
*
* @since 3.2.0
* @return array
*/
public function get_coupon_discount_tax_totals() {
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return (array) $this->coupon_discount_tax_totals;
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}
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/**
* Return all calculated totals.
*
* @since 3.2.0
* @return array
*/
public function get_totals() {
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return empty( $this->totals ) ? $this->default_totals : $this->totals;
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}
/**
* Get a total.
*
* @since 3.2.0
* @param string $key Key of element in $totals array.
* @return mixed
*/
protected function get_totals_var( $key ) {
return isset( $this->totals[ $key ] ) ? $this->totals[ $key ] : $this->default_totals[ $key ];
}
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/**
* Get subtotal.
*
* @since 3.2.0
* @return float
*/
public function get_subtotal() {
return apply_filters( 'woocommerce_cart_' . __FUNCTION__, $this->get_totals_var( 'subtotal' ) );
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}
/**
* Get subtotal.
*
* @since 3.2.0
* @return float
*/
public function get_subtotal_tax() {
return apply_filters( 'woocommerce_cart_' . __FUNCTION__, $this->get_totals_var( 'subtotal_tax' ) );
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}
/**
* Get discount_total.
*
* @since 3.2.0
* @return float
*/
public function get_discount_total() {
return apply_filters( 'woocommerce_cart_' . __FUNCTION__, $this->get_totals_var( 'discount_total' ) );
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}
/**
* Get discount_tax.
*
* @since 3.2.0
* @return float
*/
public function get_discount_tax() {
return apply_filters( 'woocommerce_cart_' . __FUNCTION__, $this->get_totals_var( 'discount_tax' ) );
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}
/**
* Get shipping_total.
*
* @since 3.2.0
* @return float
*/
public function get_shipping_total() {
return apply_filters( 'woocommerce_cart_' . __FUNCTION__, $this->get_totals_var( 'shipping_total' ) );
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}
/**
* Get shipping_tax.
*
* @since 3.2.0
* @return float
*/
public function get_shipping_tax() {
return apply_filters( 'woocommerce_cart_' . __FUNCTION__, $this->get_totals_var( 'shipping_tax' ) );
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}
/**
* Gets cart total. This is the total of items in the cart, but after discounts. Subtotal is before discounts.
*
* @since 3.2.0
* @return float
*/
public function get_cart_contents_total() {
return apply_filters( 'woocommerce_cart_' . __FUNCTION__, $this->get_totals_var( 'cart_contents_total' ) );
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}
/**
* Gets cart tax amount.
*
* @since 3.2.0
* @return float
*/
public function get_cart_contents_tax() {
return apply_filters( 'woocommerce_cart_' . __FUNCTION__, $this->get_totals_var( 'cart_contents_tax' ) );
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}
/**
* Gets cart total after calculation.
*
* @since 3.2.0
* @param string $context If the context is view, the value will be formatted for display. This keeps it compatible with pre-3.2 versions.
* @return float
*/
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public function get_total( $context = 'view' ) {
$total = apply_filters( 'woocommerce_cart_' . __FUNCTION__, $this->get_totals_var( 'total' ) );
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return 'view' === $context ? apply_filters( 'woocommerce_cart_total', wc_price( $total ) ) : $total;
}
/**
* Get total tax amount.
*
* @since 3.2.0
* @return float
*/
public function get_total_tax() {
return apply_filters( 'woocommerce_cart_' . __FUNCTION__, $this->get_totals_var( 'total_tax' ) );
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}
/**
* Get total fee amount.
*
* @since 3.2.0
* @return float
*/
public function get_fee_total() {
return apply_filters( 'woocommerce_cart_' . __FUNCTION__, $this->get_totals_var( 'fee_total' ) );
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}
/**
* Get total fee tax amount.
*
* @since 3.2.0
* @return float
*/
public function get_fee_tax() {
return apply_filters( 'woocommerce_cart_' . __FUNCTION__, $this->get_totals_var( 'fee_tax' ) );
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}
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/**
* Get taxes.
*
* @since 3.2.0
*/
public function get_shipping_taxes() {
return apply_filters( 'woocommerce_cart_' . __FUNCTION__, $this->get_totals_var( 'shipping_taxes' ) );
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}
/**
* Get taxes.
*
* @since 3.2.0
*/
public function get_cart_contents_taxes() {
return apply_filters( 'woocommerce_cart_' . __FUNCTION__, $this->get_totals_var( 'cart_contents_taxes' ) );
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}
/**
* Get taxes.
*
* @since 3.2.0
*/
public function get_fee_taxes() {
return apply_filters( 'woocommerce_cart_' . __FUNCTION__, $this->get_totals_var( 'fee_taxes' ) );
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}
/**
* Return whether or not the cart is displaying prices including tax, rather than excluding tax.
*
* @since 3.3.0
* @return bool
*/
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public function display_prices_including_tax() {
return apply_filters( 'woocommerce_cart_' . __FUNCTION__, 'incl' === $this->get_tax_price_display_mode() );
}
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/*
|--------------------------------------------------------------------------
| Setters.
|--------------------------------------------------------------------------
|
| Methods to set class properties and avoid direct access.
*/
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/**
* Sets the contents of the cart.
*
* @param array $value Cart array.
*/
public function set_cart_contents( $value ) {
$this->cart_contents = (array) $value;
}
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/**
* Set items removed from the cart.
*
* @since 3.2.0
* @param array $value Item array.
*/
public function set_removed_cart_contents( $value = array() ) {
$this->removed_cart_contents = (array) $value;
}
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/**
* Sets the array of applied coupon codes.
*
* @param array $value List of applied coupon codes.
*/
public function set_applied_coupons( $value = array() ) {
$this->applied_coupons = (array) $value;
}
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/**
* Sets the array of calculated coupon totals.
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*
* @since 3.2.0
* @param array $value Value to set.
*/
public function set_coupon_discount_totals( $value = array() ) {
$this->coupon_discount_totals = (array) $value;
}
/**
* Sets the array of calculated coupon tax totals.
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*
* @since 3.2.0
* @param array $value Value to set.
*/
public function set_coupon_discount_tax_totals( $value = array() ) {
$this->coupon_discount_tax_totals = (array) $value;
}
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/**
* Set all calculated totals.
*
* @since 3.2.0
* @param array $value Value to set.
*/
public function set_totals( $value = array() ) {
$this->totals = wp_parse_args( $value, $this->default_totals );
}
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/**
* Set subtotal.
*
* @since 3.2.0
* @param string $value Value to set.
*/
public function set_subtotal( $value ) {
$this->totals['subtotal'] = wc_format_decimal( $value, wc_get_price_decimals() );
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}
/**
* Set subtotal.
*
* @since 3.2.0
* @param string $value Value to set.
*/
public function set_subtotal_tax( $value ) {
$this->totals['subtotal_tax'] = $value;
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}
/**
* Set discount_total.
*
* @since 3.2.0
* @param string $value Value to set.
*/
public function set_discount_total( $value ) {
$this->totals['discount_total'] = $value;
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}
/**
* Set discount_tax.
*
* @since 3.2.0
* @param string $value Value to set.
*/
public function set_discount_tax( $value ) {
$this->totals['discount_tax'] = $value;
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}
/**
* Set shipping_total.
*
* @since 3.2.0
* @param string $value Value to set.
*/
public function set_shipping_total( $value ) {
$this->totals['shipping_total'] = wc_format_decimal( $value, wc_get_price_decimals() );
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}
/**
* Set shipping_tax.
*
* @since 3.2.0
* @param string $value Value to set.
*/
public function set_shipping_tax( $value ) {
$this->totals['shipping_tax'] = $value;
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}
/**
* Set cart_contents_total.
*
* @since 3.2.0
* @param string $value Value to set.
*/
public function set_cart_contents_total( $value ) {
$this->totals['cart_contents_total'] = wc_format_decimal( $value, wc_get_price_decimals() );
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}
/**
* Set cart tax amount.
*
* @since 3.2.0
* @param string $value Value to set.
*/
public function set_cart_contents_tax( $value ) {
$this->totals['cart_contents_tax'] = $value;
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}
/**
* Set cart total.
*
* @since 3.2.0
* @param string $value Value to set.
*/
public function set_total( $value ) {
$this->totals['total'] = wc_format_decimal( $value, wc_get_price_decimals() );
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}
/**
* Set total tax amount.
*
* @since 3.2.0
* @param string $value Value to set.
*/
public function set_total_tax( $value ) {
// We round here because this is a total entry, as opposed to line items in other setters.
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$this->totals['total_tax'] = wc_round_tax_total( $value );
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}
/**
* Set fee amount.
*
* @since 3.2.0
* @param string $value Value to set.
*/
public function set_fee_total( $value ) {
$this->totals['fee_total'] = wc_format_decimal( $value, wc_get_price_decimals() );
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}
/**
* Set fee tax.
*
* @since 3.2.0
* @param string $value Value to set.
*/
public function set_fee_tax( $value ) {
$this->totals['fee_tax'] = $value;
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}
/**
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* Set taxes.
*
* @since 3.2.0
* @param array $value Tax values.
*/
public function set_shipping_taxes( $value ) {
$this->totals['shipping_taxes'] = (array) $value;
}
/**
* Set taxes.
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*
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* @since 3.2.0
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* @param array $value Tax values.
*/
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public function set_cart_contents_taxes( $value ) {
$this->totals['cart_contents_taxes'] = (array) $value;
}
/**
* Set taxes.
*
* @since 3.2.0
* @param array $value Tax values.
*/
public function set_fee_taxes( $value ) {
$this->totals['fee_taxes'] = (array) $value;
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}
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/*
|--------------------------------------------------------------------------
| Helper methods.
|--------------------------------------------------------------------------
*/
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/**
* Returns the cart and shipping taxes, merged.
*
* @return array merged taxes
*/
public function get_taxes() {
return apply_filters( 'woocommerce_cart_get_taxes', wc_array_merge_recursive_numeric( $this->get_shipping_taxes(), $this->get_cart_contents_taxes(), $this->get_fee_taxes() ), $this );
}
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/**
* Returns the contents of the cart in an array.
*
* @return array contents of the cart
*/
public function get_cart() {
if ( ! did_action( 'wp_loaded' ) ) {
wc_doing_it_wrong( __FUNCTION__, __( 'Get cart should not be called before the wp_loaded action.', 'woocommerce' ), '2.3' );
}
if ( ! did_action( 'woocommerce_load_cart_from_session' ) ) {
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$this->session->get_cart_from_session();
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}
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return array_filter( $this->get_cart_contents() );
}
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/**
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* Returns a specific item in the cart.
*
* @param string $item_key Cart item key.
* @return array Item data
*/
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public function get_cart_item( $item_key ) {
return isset( $this->cart_contents[ $item_key ] ) ? $this->cart_contents[ $item_key ] : array();
}
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/**
* Checks if the cart is empty.
*
* @return bool
*/
public function is_empty() {
return 0 === count( $this->get_cart() );
}
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/**
* Empties the cart and optionally the persistent cart too.
*
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* @param bool $clear_persistent_cart Should the persistant cart be cleared too. Defaults to true.
*/
public function empty_cart( $clear_persistent_cart = true ) {
do_action( 'woocommerce_before_cart_emptied', $clear_persistent_cart );
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$this->cart_contents = array();
$this->removed_cart_contents = array();
$this->shipping_methods = array();
$this->coupon_discount_totals = array();
$this->coupon_discount_tax_totals = array();
$this->applied_coupons = array();
$this->totals = $this->default_totals;
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if ( $clear_persistent_cart ) {
$this->session->persistent_cart_destroy();
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}
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$this->fees_api->remove_all_fees();
do_action( 'woocommerce_cart_emptied', $clear_persistent_cart );
}
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/**
* Get number of items in the cart.
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*
* @return int
*/
public function get_cart_contents_count() {
return apply_filters( 'woocommerce_cart_contents_count', array_sum( wp_list_pluck( $this->get_cart(), 'quantity' ) ) );
}
/**
* Get weight of items in the cart.
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*
* @since 2.5.0
* @return int
*/
public function get_cart_contents_weight() {
$weight = 0;
foreach ( $this->get_cart() as $cart_item_key => $values ) {
if ( $values['data']->has_weight() ) {
$weight += (float) $values['data']->get_weight() * $values['quantity'];
}
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}
return apply_filters( 'woocommerce_cart_contents_weight', $weight );
}
/**
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* Get cart items quantities - merged so we can do accurate stock checks on items across multiple lines.
*
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* @return array
*/
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public function get_cart_item_quantities() {
$quantities = array();
foreach ( $this->get_cart() as $cart_item_key => $values ) {
$product = $values['data'];
$quantities[ $product->get_stock_managed_by_id() ] = isset( $quantities[ $product->get_stock_managed_by_id() ] ) ? $quantities[ $product->get_stock_managed_by_id() ] + $values['quantity'] : $values['quantity'];
}
return $quantities;
}
/**
* Check all cart items for errors.
*/
public function check_cart_items() {
$return = true;
$result = $this->check_cart_item_validity();
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if ( is_wp_error( $result ) ) {
wc_add_notice( $result->get_error_message(), 'error' );
$return = false;
}
$result = $this->check_cart_item_stock();
if ( is_wp_error( $result ) ) {
wc_add_notice( $result->get_error_message(), 'error' );
$return = false;
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}
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return $return;
}
/**
* Check cart coupons for errors.
*/
public function check_cart_coupons() {
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foreach ( $this->get_applied_coupons() as $code ) {
$coupon = new WC_Coupon( $code );
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if ( ! $coupon->is_valid() ) {
$coupon->add_coupon_message( WC_Coupon::E_WC_COUPON_INVALID_REMOVED );
$this->remove_coupon( $code );
}
}
}
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/**
* Looks through cart items and checks the posts are not trashed or deleted.
*
* @return bool|WP_Error
*/
public function check_cart_item_validity() {
$return = true;
foreach ( $this->get_cart() as $cart_item_key => $values ) {
$product = $values['data'];
if ( ! $product || ! $product->exists() || 'trash' === $product->get_status() ) {
$this->set_quantity( $cart_item_key, 0 );
$return = new WP_Error( 'invalid', __( 'An item which is no longer available was removed from your cart.', 'woocommerce' ) );
}
}
return $return;
}
/**
* Looks through the cart to check each item is in stock. If not, add an error.
*
* @return bool|WP_Error
*/
public function check_cart_item_stock() {
$error = new WP_Error();
$product_qty_in_cart = $this->get_cart_item_quantities();
$current_session_order_id = isset( WC()->session->order_awaiting_payment ) ? absint( WC()->session->order_awaiting_payment ) : 0;
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foreach ( $this->get_cart() as $cart_item_key => $values ) {
$product = $values['data'];
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// Check stock based on stock-status.
if ( ! $product->is_in_stock() ) {
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/* translators: %s: product name */
$error->add( 'out-of-stock', sprintf( __( 'Sorry, "%s" is not in stock. Please edit your cart and try again. We apologize for any inconvenience caused.', 'woocommerce' ), $product->get_name() ) );
return $error;
}
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// We only need to check products managing stock, with a limited stock qty.
if ( ! $product->managing_stock() || $product->backorders_allowed() ) {
continue;
}
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// Check stock based on all items in the cart and consider any held stock within pending orders.
$held_stock = wc_get_held_stock_quantity( $product, $current_session_order_id );
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$required_stock = $product_qty_in_cart[ $product->get_stock_managed_by_id() ];
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/**
* Allows filter if product have enough stock to get added to the cart.
*
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* @since 4.6.0
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* @param bool $has_stock If have enough stock.
* @param WC_Product $product Product instance.
* @param array $values Cart item values.
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*/
if ( apply_filters( 'woocommerce_cart_item_required_stock_is_not_enough', $product->get_stock_quantity() < ( $held_stock + $required_stock ), $product, $values ) ) {
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/* translators: 1: product name 2: quantity in stock */
$error->add( 'out-of-stock', sprintf( __( 'Sorry, we do not have enough "%1$s" in stock to fulfill your order (%2$s available). We apologize for any inconvenience caused.', 'woocommerce' ), $product->get_name(), wc_format_stock_quantity_for_display( $product->get_stock_quantity() - $held_stock, $product ) ) );
return $error;
}
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}
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return true;
}
/**
* Gets and formats a list of cart item data + variations for display on the frontend.
*
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* @param array $cart_item Cart item object.
* @param bool $flat Should the data be returned flat or in a list.
* @return string
*/
public function get_item_data( $cart_item, $flat = false ) {
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wc_deprecated_function( 'WC_Cart::get_item_data', '3.3', 'wc_get_formatted_cart_item_data' );
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return wc_get_formatted_cart_item_data( $cart_item, $flat );
}
/**
* Gets cross sells based on the items in the cart.
*
* @return array cross_sells (item ids)
*/
public function get_cross_sells() {
$cross_sells = array();
$in_cart = array();
if ( ! $this->is_empty() ) {
foreach ( $this->get_cart() as $cart_item_key => $values ) {
if ( $values['quantity'] > 0 ) {
$cross_sells = array_merge( $values['data']->get_cross_sell_ids(), $cross_sells );
$in_cart[] = $values['product_id'];
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}
}
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}
$cross_sells = array_diff( $cross_sells, $in_cart );
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return apply_filters( 'woocommerce_cart_crosssell_ids', wp_parse_id_list( $cross_sells ), $this );
}
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/**
* Gets the url to remove an item from the cart.
*
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* @param string $cart_item_key contains the id of the cart item.
* @return string url to page
*/
public function get_remove_url( $cart_item_key ) {
wc_deprecated_function( 'WC_Cart::get_remove_url', '3.3', 'wc_get_cart_remove_url' );
return wc_get_cart_remove_url( $cart_item_key );
}
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/**
* Gets the url to re-add an item into the cart.
*
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* @param string $cart_item_key Cart item key to undo.
* @return string url to page
*/
public function get_undo_url( $cart_item_key ) {
wc_deprecated_function( 'WC_Cart::get_undo_url', '3.3', 'wc_get_cart_undo_url' );
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return wc_get_cart_undo_url( $cart_item_key );
}
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/**
* Get taxes, merged by code, formatted ready for output.
*
* @return array
*/
public function get_tax_totals() {
$shipping_taxes = $this->get_shipping_taxes(); // Shipping taxes are rounded differently, so we will subtract from all taxes, then round and then add them back.
$taxes = $this->get_taxes();
$tax_totals = array();
foreach ( $taxes as $key => $tax ) {
$code = WC_Tax::get_rate_code( $key );
if ( $code || apply_filters( 'woocommerce_cart_remove_taxes_zero_rate_id', 'zero-rated' ) === $key ) {
if ( ! isset( $tax_totals[ $code ] ) ) {
$tax_totals[ $code ] = new stdClass();
$tax_totals[ $code ]->amount = 0;
}
$tax_totals[ $code ]->tax_rate_id = $key;
$tax_totals[ $code ]->is_compound = WC_Tax::is_compound( $key );
$tax_totals[ $code ]->label = WC_Tax::get_rate_label( $key );
if ( isset( $shipping_taxes[ $key ] ) ) {
$tax -= $shipping_taxes[ $key ];
$tax = wc_round_tax_total( $tax );
$tax += round( $shipping_taxes[ $key ], wc_get_price_decimals() );
unset( $shipping_taxes[ $key ] );
}
$tax_totals[ $code ]->amount += wc_round_tax_total( $tax );
$tax_totals[ $code ]->formatted_amount = wc_price( $tax_totals[ $code ]->amount );
}
}
if ( apply_filters( 'woocommerce_cart_hide_zero_taxes', true ) ) {
$amounts = array_filter( wp_list_pluck( $tax_totals, 'amount' ) );
$tax_totals = array_intersect_key( $tax_totals, $amounts );
}
return apply_filters( 'woocommerce_cart_tax_totals', $tax_totals, $this );
}
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/**
* Get all tax classes for items in the cart.
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*
* @return array
*/
public function get_cart_item_tax_classes() {
$found_tax_classes = array();
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foreach ( WC()->cart->get_cart() as $item ) {
if ( $item['data'] && ( $item['data']->is_taxable() || $item['data']->is_shipping_taxable() ) ) {
$found_tax_classes[] = $item['data']->get_tax_class();
}
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}
return array_unique( $found_tax_classes );
}
/**
* Get all tax classes for shipping based on the items in the cart.
*
* @return array
*/
public function get_cart_item_tax_classes_for_shipping() {
$found_tax_classes = array();
foreach ( WC()->cart->get_cart() as $item ) {
if ( $item['data'] && ( $item['data']->is_shipping_taxable() ) ) {
$found_tax_classes[] = $item['data']->get_tax_class();
}
}
return array_unique( $found_tax_classes );
}
/**
* Determines the value that the customer spent and the subtotal
* displayed, used for things like coupon validation.
*
* Since the coupon lines are displayed based on the TAX DISPLAY value
* of cart, this is used to determine the spend.
*
* If cart totals are shown including tax, use the subtotal.
* If cart totals are shown excluding tax, use the subtotal ex tax
* (tax is shown after coupons).
*
* @since 2.6.0
* @return string
*/
public function get_displayed_subtotal() {
return $this->display_prices_including_tax() ? $this->get_subtotal() + $this->get_subtotal_tax() : $this->get_subtotal();
}
/**
* Check if product is in the cart and return cart item key.
*
* Cart item key will be unique based on the item and its properties, such as variations.
*
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* @param mixed $cart_id id of product to find in the cart.
* @return string cart item key
*/
public function find_product_in_cart( $cart_id = false ) {
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if ( false !== $cart_id ) {
if ( is_array( $this->cart_contents ) && isset( $this->cart_contents[ $cart_id ] ) ) {
return $cart_id;
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}
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}
return '';
}
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/**
* Generate a unique ID for the cart item being added.
*
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* @param int $product_id - id of the product the key is being generated for.
* @param int $variation_id of the product the key is being generated for.
* @param array $variation data for the cart item.
* @param array $cart_item_data other cart item data passed which affects this items uniqueness in the cart.
* @return string cart item key
*/
public function generate_cart_id( $product_id, $variation_id = 0, $variation = array(), $cart_item_data = array() ) {
$id_parts = array( $product_id );
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if ( $variation_id && 0 !== $variation_id ) {
$id_parts[] = $variation_id;
}
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if ( is_array( $variation ) && ! empty( $variation ) ) {
$variation_key = '';
foreach ( $variation as $key => $value ) {
$variation_key .= trim( $key ) . trim( $value );
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}
$id_parts[] = $variation_key;
}
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if ( is_array( $cart_item_data ) && ! empty( $cart_item_data ) ) {
$cart_item_data_key = '';
foreach ( $cart_item_data as $key => $value ) {
if ( is_array( $value ) || is_object( $value ) ) {
$value = http_build_query( $value );
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}
$cart_item_data_key .= trim( $key ) . trim( $value );
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}
$id_parts[] = $cart_item_data_key;
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}
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return apply_filters( 'woocommerce_cart_id', md5( implode( '_', $id_parts ) ), $product_id, $variation_id, $variation, $cart_item_data );
}
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/**
* Add a product to the cart.
*
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* @throws Exception Plugins can throw an exception to prevent adding to cart.
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* @param int $product_id contains the id of the product to add to the cart.
* @param int $quantity contains the quantity of the item to add.
* @param int $variation_id ID of the variation being added to the cart.
* @param array $variation attribute values.
* @param array $cart_item_data extra cart item data we want to pass into the item.
* @return string|bool $cart_item_key
*/
public function add_to_cart( $product_id = 0, $quantity = 1, $variation_id = 0, $variation = array(), $cart_item_data = array() ) {
try {
$product_id = absint( $product_id );
$variation_id = absint( $variation_id );
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// Ensure we don't add a variation to the cart directly by variation ID.
if ( 'product_variation' === get_post_type( $product_id ) ) {
$variation_id = $product_id;
$product_id = wp_get_post_parent_id( $variation_id );
}
$product_data = wc_get_product( $variation_id ? $variation_id : $product_id );
$quantity = apply_filters( 'woocommerce_add_to_cart_quantity', $quantity, $product_id );
if ( $quantity <= 0 || ! $product_data || 'trash' === $product_data->get_status() ) {
return false;
}
if ( $product_data->is_type( 'variation' ) ) {
$missing_attributes = array();
$parent_data = wc_get_product( $product_data->get_parent_id() );
$variation_attributes = $product_data->get_variation_attributes();
// Filter out 'any' variations, which are empty, as they need to be explicitly specified while adding to cart.
$variation_attributes = array_filter( $variation_attributes );
// Gather posted attributes.
$posted_attributes = array();
foreach ( $parent_data->get_attributes() as $attribute ) {
if ( ! $attribute['is_variation'] ) {
continue;
}
$attribute_key = 'attribute_' . sanitize_title( $attribute['name'] );
if ( isset( $variation[ $attribute_key ] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
if ( $attribute['is_taxonomy'] ) {
// Don't use wc_clean as it destroys sanitized characters.
$value = sanitize_title( wp_unslash( $variation[ $attribute_key ] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
} else {
$value = html_entity_decode( wc_clean( wp_unslash( $variation[ $attribute_key ] ) ), ENT_QUOTES, get_bloginfo( 'charset' ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
}
// Don't include if it's empty.
if ( ! empty( $value ) || '0' === $value ) {
$posted_attributes[ $attribute_key ] = $value;
}
}
}
// Merge variation attributes and posted attributes.
$posted_and_variation_attributes = array_merge( $variation_attributes, $posted_attributes );
// If no variation ID is set, attempt to get a variation ID from posted attributes.
if ( empty( $variation_id ) ) {
$data_store = WC_Data_Store::load( 'product' );
$variation_id = $data_store->find_matching_product_variation( $parent_data, $posted_attributes );
}
// Do we have a variation ID?
if ( empty( $variation_id ) ) {
throw new Exception( __( 'Please choose product options&hellip;', 'woocommerce' ) );
}
// Check the data we have is valid.
$variation_data = wc_get_product_variation_attributes( $variation_id );
$attributes = array();
foreach ( $parent_data->get_attributes() as $attribute ) {
if ( ! $attribute['is_variation'] ) {
continue;
}
// Get valid value from variation data.
$attribute_key = 'attribute_' . sanitize_title( $attribute['name'] );
$valid_value = isset( $variation_data[ $attribute_key ] ) ? $variation_data[ $attribute_key ] : '';
/**
* If the attribute value was posted, check if it's valid.
*
* If no attribute was posted, only error if the variation has an 'any' attribute which requires a value.
*/
if ( isset( $posted_and_variation_attributes[ $attribute_key ] ) ) {
$value = $posted_and_variation_attributes[ $attribute_key ];
// Allow if valid or show error.
if ( $valid_value === $value ) {
$attributes[ $attribute_key ] = $value;
} elseif ( '' === $valid_value && in_array( $value, $attribute->get_slugs(), true ) ) {
// If valid values are empty, this is an 'any' variation so get all possible values.
$attributes[ $attribute_key ] = $value;
} else {
/* translators: %s: Attribute name. */
throw new Exception( sprintf( __( 'Invalid value posted for %s', 'woocommerce' ), wc_attribute_label( $attribute['name'] ) ) );
}
} elseif ( '' === $valid_value ) {
$missing_attributes[] = wc_attribute_label( $attribute['name'] );
}
$variation = $attributes;
}
if ( ! empty( $missing_attributes ) ) {
/* translators: %s: Attribute name. */
throw new Exception( sprintf( _n( '%s is a required field', '%s are required fields', count( $missing_attributes ), 'woocommerce' ), wc_format_list_of_items( $missing_attributes ) ) );
}
}
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// Load cart item data - may be added by other plugins.
$cart_item_data = (array) apply_filters( 'woocommerce_add_cart_item_data', $cart_item_data, $product_id, $variation_id, $quantity );
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// Generate a ID based on product ID, variation ID, variation data, and other cart item data.
$cart_id = $this->generate_cart_id( $product_id, $variation_id, $variation, $cart_item_data );
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// Find the cart item key in the existing cart.
$cart_item_key = $this->find_product_in_cart( $cart_id );
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// Force quantity to 1 if sold individually and check for existing item in cart.
if ( $product_data->is_sold_individually() ) {
$quantity = apply_filters( 'woocommerce_add_to_cart_sold_individually_quantity', 1, $quantity, $product_id, $variation_id, $cart_item_data );
$found_in_cart = apply_filters( 'woocommerce_add_to_cart_sold_individually_found_in_cart', $cart_item_key && $this->cart_contents[ $cart_item_key ]['quantity'] > 0, $product_id, $variation_id, $cart_item_data, $cart_id );
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if ( $found_in_cart ) {
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/* translators: %s: product name */
$message = sprintf( __( 'You cannot add another "%s" to your cart.', 'woocommerce' ), $product_data->get_name() );
/**
* Filters message about more than 1 product being added to cart.
*
* @since 4.5.0
* @param string $message Message.
* @param WC_Product $product_data Product data.
*/
$message = apply_filters( 'woocommerce_cart_product_cannot_add_another_message', $message, $product_data );
throw new Exception( sprintf( '<a href="%s" class="button wc-forward">%s</a> %s', wc_get_cart_url(), __( 'View cart', 'woocommerce' ), $message ) );
}
}
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if ( ! $product_data->is_purchasable() ) {
$message = __( 'Sorry, this product cannot be purchased.', 'woocommerce' );
/**
* Filters message about product unable to be purchased.
*
* @since 3.8.0
* @param string $message Message.
* @param WC_Product $product_data Product data.
*/
$message = apply_filters( 'woocommerce_cart_product_cannot_be_purchased_message', $message, $product_data );
throw new Exception( $message );
}
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// Stock check - only check if we're managing stock and backorders are not allowed.
if ( ! $product_data->is_in_stock() ) {
/* translators: %s: product name */
$message = sprintf( __( 'You cannot add &quot;%s&quot; to the cart because the product is out of stock.', 'woocommerce' ), $product_data->get_name() );
/**
* Filters message about product being out of stock.
*
* @since 4.5.0
* @param string $message Message.
* @param WC_Product $product_data Product data.
*/
$message = apply_filters( 'woocommerce_cart_product_out_of_stock_message', $message, $product_data );
throw new Exception( $message );
}
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if ( ! $product_data->has_enough_stock( $quantity ) ) {
$stock_quantity = $product_data->get_stock_quantity();
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/* translators: 1: product name 2: quantity in stock */
$message = sprintf( __( 'You cannot add that amount of &quot;%1$s&quot; to the cart because there is not enough stock (%2$s remaining).', 'woocommerce' ), $product_data->get_name(), wc_format_stock_quantity_for_display( $stock_quantity, $product_data ) );
/**
* Filters message about product not having enough stock.
*
* @since 4.5.0
* @param string $message Message.
* @param WC_Product $product_data Product data.
* @param int $stock_quantity Quantity remaining.
*/
$message = apply_filters( 'woocommerce_cart_product_not_enough_stock_message', $message, $product_data, $stock_quantity );
throw new Exception( $message );
}
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// Stock check - this time accounting for whats already in-cart.
if ( $product_data->managing_stock() ) {
$products_qty_in_cart = $this->get_cart_item_quantities();
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if ( isset( $products_qty_in_cart[ $product_data->get_stock_managed_by_id() ] ) && ! $product_data->has_enough_stock( $products_qty_in_cart[ $product_data->get_stock_managed_by_id() ] + $quantity ) ) {
throw new Exception(
sprintf(
'<a href="%s" class="button wc-forward">%s</a> %s',
wc_get_cart_url(),
__( 'View cart', 'woocommerce' ),
/* translators: 1: quantity in stock 2: current quantity */
sprintf( __( 'You cannot add that amount to the cart &mdash; we have %1$s in stock and you already have %2$s in your cart.', 'woocommerce' ), wc_format_stock_quantity_for_display( $product_data->get_stock_quantity(), $product_data ), wc_format_stock_quantity_for_display( $products_qty_in_cart[ $product_data->get_stock_managed_by_id() ], $product_data ) )
)
);
}
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}
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// If cart_item_key is set, the item is already in the cart.
if ( $cart_item_key ) {
$new_quantity = $quantity + $this->cart_contents[ $cart_item_key ]['quantity'];
$this->set_quantity( $cart_item_key, $new_quantity, false );
} else {
$cart_item_key = $cart_id;
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// Add item after merging with $cart_item_data - hook to allow plugins to modify cart item.
$this->cart_contents[ $cart_item_key ] = apply_filters(
'woocommerce_add_cart_item',
array_merge(
$cart_item_data,
array(
'key' => $cart_item_key,
'product_id' => $product_id,
'variation_id' => $variation_id,
'variation' => $variation,
'quantity' => $quantity,
'data' => $product_data,
'data_hash' => wc_get_cart_item_data_hash( $product_data ),
)
),
$cart_item_key
);
}
$this->cart_contents = apply_filters( 'woocommerce_cart_contents_changed', $this->cart_contents );
do_action( 'woocommerce_add_to_cart', $cart_item_key, $product_id, $quantity, $variation_id, $variation, $cart_item_data );
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return $cart_item_key;
} catch ( Exception $e ) {
if ( $e->getMessage() ) {
wc_add_notice( $e->getMessage(), 'error' );
}
return false;
}
}
/**
* Remove a cart item.
*
* @since 2.3.0
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* @param string $cart_item_key Cart item key to remove from the cart.
* @return bool
*/
public function remove_cart_item( $cart_item_key ) {
if ( isset( $this->cart_contents[ $cart_item_key ] ) ) {
$this->removed_cart_contents[ $cart_item_key ] = $this->cart_contents[ $cart_item_key ];
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unset( $this->removed_cart_contents[ $cart_item_key ]['data'] );
do_action( 'woocommerce_remove_cart_item', $cart_item_key, $this );
unset( $this->cart_contents[ $cart_item_key ] );
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do_action( 'woocommerce_cart_item_removed', $cart_item_key, $this );
return true;
}
return false;
}
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/**
* Restore a cart item.
*
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* @param string $cart_item_key Cart item key to restore to the cart.
* @return bool
*/
public function restore_cart_item( $cart_item_key ) {
if ( isset( $this->removed_cart_contents[ $cart_item_key ] ) ) {
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$restore_item = $this->removed_cart_contents[ $cart_item_key ];
$this->cart_contents[ $cart_item_key ] = $restore_item;
$this->cart_contents[ $cart_item_key ]['data'] = wc_get_product( $restore_item['variation_id'] ? $restore_item['variation_id'] : $restore_item['product_id'] );
do_action( 'woocommerce_restore_cart_item', $cart_item_key, $this );
unset( $this->removed_cart_contents[ $cart_item_key ] );
do_action( 'woocommerce_cart_item_restored', $cart_item_key, $this );
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return true;
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}
return false;
}
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/**
* Set the quantity for an item in the cart using it's key.
*
* @param string $cart_item_key contains the id of the cart item.
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* @param int $quantity contains the quantity of the item.
* @param bool $refresh_totals whether or not to calculate totals after setting the new qty. Can be used to defer calculations if setting quantities in bulk.
* @return bool
*/
public function set_quantity( $cart_item_key, $quantity = 1, $refresh_totals = true ) {
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if ( 0 === $quantity || $quantity < 0 ) {
wc_do_deprecated_action( 'woocommerce_before_cart_item_quantity_zero', array( $cart_item_key, $this ), '3.7.0', 'woocommerce_remove_cart_item' );
// If we're setting qty to 0 we're removing the item from the cart.
return $this->remove_cart_item( $cart_item_key );
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}
// Update qty.
$old_quantity = $this->cart_contents[ $cart_item_key ]['quantity'];
$this->cart_contents[ $cart_item_key ]['quantity'] = $quantity;
do_action( 'woocommerce_after_cart_item_quantity_update', $cart_item_key, $quantity, $old_quantity, $this );
if ( $refresh_totals ) {
$this->calculate_totals();
}
/**
* Fired after qty has been changed.
*
* @since 3.6.0
* @param string $cart_item_key contains the id of the cart item. This may be empty if the cart item does not exist any more.
* @param int $quantity contains the quantity of the item.
* @param WC_Cart $this Cart class.
*/
do_action( 'woocommerce_cart_item_set_quantity', $cart_item_key, $quantity, $this );
return true;
}
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/**
* Get cart's owner.
*
* @since 3.2.0
* @return WC_Customer
*/
public function get_customer() {
return WC()->customer;
}
/**
* Calculate totals for the items in the cart.
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*
* @uses WC_Cart_Totals
*/
public function calculate_totals() {
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$this->reset_totals();
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if ( $this->is_empty() ) {
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$this->session->set_session();
return;
}
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do_action( 'woocommerce_before_calculate_totals', $this );
new WC_Cart_Totals( $this );
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do_action( 'woocommerce_after_calculate_totals', $this );
}
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/**
* Looks at the totals to see if payment is actually required.
*
* @return bool
*/
public function needs_payment() {
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return apply_filters( 'woocommerce_cart_needs_payment', 0 < $this->get_total( 'edit' ), $this );
}
/*
* Shipping related functions.
*/
/**
* Uses the shipping class to calculate shipping then gets the totals when its finished.
*/
public function calculate_shipping() {
$this->shipping_methods = $this->needs_shipping() ? $this->get_chosen_shipping_methods( WC()->shipping()->calculate_shipping( $this->get_shipping_packages() ) ) : array();
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$shipping_taxes = wp_list_pluck( $this->shipping_methods, 'taxes' );
$merged_taxes = array();
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foreach ( $shipping_taxes as $taxes ) {
foreach ( $taxes as $tax_id => $tax_amount ) {
if ( ! isset( $merged_taxes[ $tax_id ] ) ) {
$merged_taxes[ $tax_id ] = 0;
}
$merged_taxes[ $tax_id ] += $tax_amount;
}
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}
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$this->set_shipping_total( array_sum( wp_list_pluck( $this->shipping_methods, 'cost' ) ) );
$this->set_shipping_tax( array_sum( $merged_taxes ) );
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$this->set_shipping_taxes( $merged_taxes );
return $this->shipping_methods;
}
/**
* Given a set of packages with rates, get the chosen ones only.
*
* @since 3.2.0
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* @param array $calculated_shipping_packages Array of packages.
* @return array
*/
protected function get_chosen_shipping_methods( $calculated_shipping_packages = array() ) {
$chosen_methods = array();
// Get chosen methods for each package to get our totals.
foreach ( $calculated_shipping_packages as $key => $package ) {
$chosen_method = wc_get_chosen_shipping_method_for_package( $key, $package );
if ( $chosen_method ) {
$chosen_methods[ $key ] = $package['rates'][ $chosen_method ];
}
}
return $chosen_methods;
}
/**
* Filter items needing shipping callback.
*
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* @since 3.0.0
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* @param array $item Item to check for shipping.
* @return bool
*/
protected function filter_items_needing_shipping( $item ) {
$product = $item['data'];
return $product && $product->needs_shipping();
}
/**
* Get only items that need shipping.
*
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* @since 3.0.0
* @return array
*/
protected function get_items_needing_shipping() {
return array_filter( $this->get_cart(), array( $this, 'filter_items_needing_shipping' ) );
}
/**
* Get packages to calculate shipping for.
*
* This lets us calculate costs for carts that are shipped to multiple locations.
*
* Shipping methods are responsible for looping through these packages.
*
* By default we pass the cart itself as a package - plugins can change this.
* through the filter and break it up.
*
* @since 1.5.4
* @return array of cart items
*/
public function get_shipping_packages() {
return apply_filters(
'woocommerce_cart_shipping_packages',
array(
array(
'contents' => $this->get_items_needing_shipping(),
'contents_cost' => array_sum( wp_list_pluck( $this->get_items_needing_shipping(), 'line_total' ) ),
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'applied_coupons' => $this->get_applied_coupons(),
'user' => array(
'ID' => get_current_user_id(),
),
'destination' => array(
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'country' => $this->get_customer()->get_shipping_country(),
'state' => $this->get_customer()->get_shipping_state(),
'postcode' => $this->get_customer()->get_shipping_postcode(),
'city' => $this->get_customer()->get_shipping_city(),
'address' => $this->get_customer()->get_shipping_address(),
'address_1' => $this->get_customer()->get_shipping_address(), // Provide both address and address_1 for backwards compatibility.
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'address_2' => $this->get_customer()->get_shipping_address_2(),
),
'cart_subtotal' => $this->get_displayed_subtotal(),
),
)
);
}
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/**
* Looks through the cart to see if shipping is actually required.
*
* @return bool whether or not the cart needs shipping
*/
public function needs_shipping() {
if ( ! wc_shipping_enabled() || 0 === wc_get_shipping_method_count( true ) ) {
return false;
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}
$needs_shipping = false;
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foreach ( $this->get_cart_contents() as $cart_item_key => $values ) {
if ( $values['data']->needs_shipping() ) {
$needs_shipping = true;
break;
}
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}
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return apply_filters( 'woocommerce_cart_needs_shipping', $needs_shipping );
}
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/**
* Should the shipping address form be shown.
*
* @return bool
*/
public function needs_shipping_address() {
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return apply_filters( 'woocommerce_cart_needs_shipping_address', true === $this->needs_shipping() && ! wc_ship_to_billing_address_only() );
}
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/**
* Sees if the customer has entered enough data to calc the shipping yet.
*
* @return bool
*/
public function show_shipping() {
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if ( ! wc_shipping_enabled() || ! $this->get_cart_contents() ) {
return false;
}
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if ( 'yes' === get_option( 'woocommerce_shipping_cost_requires_address' ) ) {
$country = $this->get_customer()->get_shipping_country();
if ( ! $country ) {
return false;
}
$country_fields = WC()->countries->get_address_fields( $country, 'shipping_' );
if ( isset( $country_fields['shipping_state'] ) && $country_fields['shipping_state']['required'] && ! $this->get_customer()->get_shipping_state() ) {
return false;
}
if ( isset( $country_fields['shipping_postcode'] ) && $country_fields['shipping_postcode']['required'] && ! $this->get_customer()->get_shipping_postcode() ) {
return false;
}
}
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return apply_filters( 'woocommerce_cart_ready_to_calc_shipping', true );
}
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/**
* Gets the shipping total (after calculation).
*
* @return string price or string for the shipping total
*/
public function get_cart_shipping_total() {
// Default total assumes Free shipping.
$total = __( 'Free!', 'woocommerce' );
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if ( 0 < $this->get_shipping_total() ) {
if ( $this->display_prices_including_tax() ) {
$total = wc_price( $this->shipping_total + $this->shipping_tax_total );
if ( $this->shipping_tax_total > 0 && ! wc_prices_include_tax() ) {
$total .= ' <small class="tax_label">' . WC()->countries->inc_tax_or_vat() . '</small>';
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}
} else {
$total = wc_price( $this->shipping_total );
if ( $this->shipping_tax_total > 0 && wc_prices_include_tax() ) {
$total .= ' <small class="tax_label">' . WC()->countries->ex_tax_or_vat() . '</small>';
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}
}
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}
return apply_filters( 'woocommerce_cart_shipping_total', $total, $this );
}
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/**
* Check for user coupons (now that we have billing email). If a coupon is invalid, add an error.
*
* Checks two types of coupons:
* 1. Where a list of customer emails are set (limits coupon usage to those defined).
* 2. Where a usage_limit_per_user is set (limits coupon usage to a number based on user ID and email).
*
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* @param array $posted Post data.
*/
public function check_customer_coupons( $posted ) {
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foreach ( $this->get_applied_coupons() as $code ) {
$coupon = new WC_Coupon( $code );
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if ( $coupon->is_valid() ) {
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// Get user and posted emails to compare.
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$current_user = wp_get_current_user();
$billing_email = isset( $posted['billing_email'] ) ? $posted['billing_email'] : '';
$check_emails = array_unique(
array_filter(
array_map(
'strtolower',
array_map(
'sanitize_email',
array(
$billing_email,
$current_user->user_email,
)
)
)
)
);
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// Limit to defined email addresses.
$restrictions = $coupon->get_email_restrictions();
if ( is_array( $restrictions ) && 0 < count( $restrictions ) && ! $this->is_coupon_emails_allowed( $check_emails, $restrictions ) ) {
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$coupon->add_coupon_message( WC_Coupon::E_WC_COUPON_NOT_YOURS_REMOVED );
$this->remove_coupon( $code );
}
$coupon_usage_limit = $coupon->get_usage_limit_per_user();
if ( 0 < $coupon_usage_limit && 0 === get_current_user_id() ) {
// For guest, usage per user has not been enforced yet. Enforce it now.
$coupon_data_store = $coupon->get_data_store();
$billing_email = strtolower( sanitize_email( $billing_email ) );
if ( $coupon_data_store && $coupon_data_store->get_usage_by_email( $coupon, $billing_email ) >= $coupon_usage_limit ) {
$coupon->add_coupon_message( WC_Coupon::E_WC_COUPON_USAGE_LIMIT_REACHED );
}
}
}
}
}
/**
* Checks if the given email address(es) matches the ones specified on the coupon.
*
* @param array $check_emails Array of customer email addresses.
* @param array $restrictions Array of allowed email addresses.
* @return bool
*/
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public function is_coupon_emails_allowed( $check_emails, $restrictions ) {
foreach ( $check_emails as $check_email ) {
// With a direct match we return true.
if ( in_array( $check_email, $restrictions, true ) ) {
return true;
}
// Go through the allowed emails and return true if the email matches a wildcard.
foreach ( $restrictions as $restriction ) {
// Convert to PHP-regex syntax.
$regex = '/^' . str_replace( '*', '(.+)?', $restriction ) . '$/';
preg_match( $regex, $check_email, $match );
if ( ! empty( $match ) ) {
return true;
}
}
}
// No matches, this one isn't allowed.
return false;
}
/**
* Returns whether or not a discount has been applied.
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*
* @param string $coupon_code Coupon code to check.
* @return bool
*/
public function has_discount( $coupon_code = '' ) {
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return $coupon_code ? in_array( wc_format_coupon_code( $coupon_code ), $this->applied_coupons, true ) : count( $this->applied_coupons ) > 0;
}
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/**
* Applies a coupon code passed to the method.
*
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* @param string $coupon_code - The code to apply.
* @return bool True if the coupon is applied, false if it does not exist or cannot be applied.
*/
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public function apply_coupon( $coupon_code ) {
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// Coupons are globally disabled.
if ( ! wc_coupons_enabled() ) {
return false;
}
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// Sanitize coupon code.
$coupon_code = wc_format_coupon_code( $coupon_code );
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// Get the coupon.
$the_coupon = new WC_Coupon( $coupon_code );
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// Prevent adding coupons by post ID.
if ( $the_coupon->get_code() !== $coupon_code ) {
$the_coupon->set_code( $coupon_code );
$the_coupon->add_coupon_message( WC_Coupon::E_WC_COUPON_NOT_EXIST );
return false;
}
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// Check it can be used with cart.
if ( ! $the_coupon->is_valid() ) {
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wc_add_notice( $the_coupon->get_error_message(), 'error' );
return false;
}
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// Check if applied.
if ( $this->has_discount( $coupon_code ) ) {
$the_coupon->add_coupon_message( WC_Coupon::E_WC_COUPON_ALREADY_APPLIED );
return false;
}
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// If its individual use then remove other coupons.
if ( $the_coupon->get_individual_use() ) {
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$coupons_to_keep = apply_filters( 'woocommerce_apply_individual_use_coupon', array(), $the_coupon, $this->applied_coupons );
foreach ( $this->applied_coupons as $applied_coupon ) {
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$keep_key = array_search( $applied_coupon, $coupons_to_keep, true );
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if ( false === $keep_key ) {
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$this->remove_coupon( $applied_coupon );
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} else {
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unset( $coupons_to_keep[ $keep_key ] );
}
}
if ( ! empty( $coupons_to_keep ) ) {
$this->applied_coupons += $coupons_to_keep;
}
}
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// Check to see if an individual use coupon is set.
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if ( $this->applied_coupons ) {
foreach ( $this->applied_coupons as $code ) {
$coupon = new WC_Coupon( $code );
if ( $coupon->get_individual_use() && false === apply_filters( 'woocommerce_apply_with_individual_use_coupon', false, $the_coupon, $coupon, $this->applied_coupons ) ) {
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// Reject new coupon.
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$coupon->add_coupon_message( WC_Coupon::E_WC_COUPON_ALREADY_APPLIED_INDIV_USE_ONLY );
return false;
}
}
}
$this->applied_coupons[] = $coupon_code;
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// Choose free shipping.
if ( $the_coupon->get_free_shipping() ) {
$packages = WC()->shipping()->get_packages();
$chosen_shipping_methods = WC()->session->get( 'chosen_shipping_methods' );
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foreach ( $packages as $i => $package ) {
$chosen_shipping_methods[ $i ] = 'free_shipping';
}
WC()->session->set( 'chosen_shipping_methods', $chosen_shipping_methods );
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}
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$the_coupon->add_coupon_message( WC_Coupon::WC_COUPON_SUCCESS );
do_action( 'woocommerce_applied_coupon', $coupon_code );
return true;
}
/**
* Get array of applied coupon objects and codes.
*
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* @param null $deprecated No longer used.
* @return array of applied coupons
*/
public function get_coupons( $deprecated = null ) {
$coupons = array();
if ( 'order' === $deprecated ) {
return $coupons;
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}
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foreach ( $this->get_applied_coupons() as $code ) {
$coupon = new WC_Coupon( $code );
$coupons[ $code ] = $coupon;
}
return $coupons;
}
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/**
* Get the discount amount for a used coupon.
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*
* @param string $code coupon code.
* @param bool $ex_tax inc or ex tax.
* @return float discount amount
*/
public function get_coupon_discount_amount( $code, $ex_tax = true ) {
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$totals = $this->get_coupon_discount_totals();
$discount_amount = isset( $totals[ $code ] ) ? $totals[ $code ] : 0;
if ( ! $ex_tax ) {
$discount_amount += $this->get_coupon_discount_tax_amount( $code );
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}
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return wc_cart_round_discount( $discount_amount, wc_get_price_decimals() );
}
/**
* Get the discount tax amount for a used coupon (for tax inclusive prices).
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*
* @param string $code coupon code.
* @return float discount amount
*/
public function get_coupon_discount_tax_amount( $code ) {
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$totals = $this->get_coupon_discount_tax_totals();
return wc_cart_round_discount( isset( $totals[ $code ] ) ? $totals[ $code ] : 0, wc_get_price_decimals() );
}
/**
* Remove coupons from the cart of a defined type. Type 1 is before tax, type 2 is after tax.
*
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* @param null $deprecated No longer used.
*/
public function remove_coupons( $deprecated = null ) {
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$this->set_coupon_discount_totals( array() );
$this->set_coupon_discount_tax_totals( array() );
$this->set_applied_coupons( array() );
$this->session->set_session();
}
/**
* Remove a single coupon by code.
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*
* @param string $coupon_code Code of the coupon to remove.
* @return bool
*/
public function remove_coupon( $coupon_code ) {
$coupon_code = wc_format_coupon_code( $coupon_code );
$position = array_search( $coupon_code, array_map( 'wc_format_coupon_code', $this->get_applied_coupons() ), true );
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if ( false !== $position ) {
unset( $this->applied_coupons[ $position ] );
}
WC()->session->set( 'refresh_totals', true );
do_action( 'woocommerce_removed_coupon', $coupon_code );
return true;
}
/**
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* Trigger an action so 3rd parties can add custom fees.
*
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* @since 2.0.0
*/
public function calculate_fees() {
do_action( 'woocommerce_cart_calculate_fees', $this );
}
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/**
* Return reference to fees API.
*
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* @since 3.2.0
* @return WC_Cart_Fees
*/
public function fees_api() {
return $this->fees_api;
}
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/**
* Add additional fee to the cart.
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*
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* This method should be called on a callback attached to the
* woocommerce_cart_calculate_fees action during cart/checkout. Fees do not
* persist.
*
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* @uses WC_Cart_Fees::add_fee
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* @param string $name Unique name for the fee. Multiple fees of the same name cannot be added.
* @param float $amount Fee amount (do not enter negative amounts).
* @param bool $taxable Is the fee taxable? (default: false).
* @param string $tax_class The tax class for the fee if taxable. A blank string is standard tax class. (default: '').
*/
public function add_fee( $name, $amount, $taxable = false, $tax_class = '' ) {
$this->fees_api()->add_fee(
array(
'name' => $name,
'amount' => (float) $amount,
'taxable' => $taxable,
'tax_class' => $tax_class,
)
);
}
/**
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* Return all added fees from the Fees API.
*
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* @uses WC_Cart_Fees::get_fees
* @return array
*/
public function get_fees() {
$fees = $this->fees_api()->get_fees();
if ( property_exists( $this, 'fees' ) ) {
$fees = $fees + (array) $this->fees;
}
return $fees;
}
/**
* Gets the total excluding taxes.
*
* @return string formatted price
*/
public function get_total_ex_tax() {
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return apply_filters( 'woocommerce_cart_total_ex_tax', wc_price( max( 0, $this->get_total( 'edit' ) - $this->get_total_tax() ) ) );
}
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/**
* Gets the cart contents total (after calculation).
*
* @return string formatted price
*/
public function get_cart_total() {
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return apply_filters( 'woocommerce_cart_contents_total', wc_price( wc_prices_include_tax() ? $this->get_cart_contents_total() + $this->get_cart_contents_tax() : $this->get_cart_contents_total() ) );
}
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/**
* Gets the sub total (after calculation).
*
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* @param bool $compound whether to include compound taxes.
* @return string formatted price
*/
public function get_cart_subtotal( $compound = false ) {
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/**
* If the cart has compound tax, we want to show the subtotal as cart + shipping + non-compound taxes (after discount).
*/
if ( $compound ) {
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$cart_subtotal = wc_price( $this->get_cart_contents_total() + $this->get_shipping_total() + $this->get_taxes_total( false, false ) );
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} elseif ( $this->display_prices_including_tax() ) {
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$cart_subtotal = wc_price( $this->get_subtotal() + $this->get_subtotal_tax() );
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if ( $this->get_subtotal_tax() > 0 && ! wc_prices_include_tax() ) {
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$cart_subtotal .= ' <small class="tax_label">' . WC()->countries->inc_tax_or_vat() . '</small>';
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}
} else {
$cart_subtotal = wc_price( $this->get_subtotal() );
if ( $this->get_subtotal_tax() > 0 && wc_prices_include_tax() ) {
$cart_subtotal .= ' <small class="tax_label">' . WC()->countries->ex_tax_or_vat() . '</small>';
}
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}
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return apply_filters( 'woocommerce_cart_subtotal', $cart_subtotal, $compound, $this );
}
/**
* Get the product row price per item.
*
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* @param WC_Product $product Product object.
* @return string formatted price
*/
public function get_product_price( $product ) {
if ( $this->display_prices_including_tax() ) {
$product_price = wc_get_price_including_tax( $product );
} else {
$product_price = wc_get_price_excluding_tax( $product );
}
return apply_filters( 'woocommerce_cart_product_price', wc_price( $product_price ), $product );
}
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/**
* Get the product row subtotal.
*
* Gets the tax etc to avoid rounding issues.
*
* When on the checkout (review order), this will get the subtotal based on the customer's tax rate rather than the base rate.
*
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* @param WC_Product $product Product object.
* @param int $quantity Quantity being purchased.
* @return string formatted price
*/
public function get_product_subtotal( $product, $quantity ) {
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$price = $product->get_price();
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if ( $product->is_taxable() ) {
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if ( $this->display_prices_including_tax() ) {
$row_price = wc_get_price_including_tax( $product, array( 'qty' => $quantity ) );
$product_subtotal = wc_price( $row_price );
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if ( ! wc_prices_include_tax() && $this->get_subtotal_tax() > 0 ) {
$product_subtotal .= ' <small class="tax_label">' . WC()->countries->inc_tax_or_vat() . '</small>';
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}
} else {
$row_price = wc_get_price_excluding_tax( $product, array( 'qty' => $quantity ) );
$product_subtotal = wc_price( $row_price );
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if ( wc_prices_include_tax() && $this->get_subtotal_tax() > 0 ) {
$product_subtotal .= ' <small class="tax_label">' . WC()->countries->ex_tax_or_vat() . '</small>';
}
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}
} else {
$row_price = $price * $quantity;
$product_subtotal = wc_price( $row_price );
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}
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return apply_filters( 'woocommerce_cart_product_subtotal', $product_subtotal, $product, $quantity, $this );
}
/**
* Gets the cart tax (after calculation).
*
* @return string formatted price
*/
public function get_cart_tax() {
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$cart_total_tax = wc_round_tax_total( $this->get_cart_contents_tax() + $this->get_shipping_tax() + $this->get_fee_tax() );
return apply_filters( 'woocommerce_get_cart_tax', $cart_total_tax ? wc_price( $cart_total_tax ) : '' );
}
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/**
* Get a tax amount.
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*
* @param string $tax_rate_id ID of the tax rate to get taxes for.
* @return float amount
*/
public function get_tax_amount( $tax_rate_id ) {
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$taxes = wc_array_merge_recursive_numeric( $this->get_cart_contents_taxes(), $this->get_fee_taxes() );
return isset( $taxes[ $tax_rate_id ] ) ? $taxes[ $tax_rate_id ] : 0;
}
/**
* Get a tax amount.
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*
* @param string $tax_rate_id ID of the tax rate to get taxes for.
* @return float amount
*/
public function get_shipping_tax_amount( $tax_rate_id ) {
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$taxes = $this->get_shipping_taxes();
return isset( $taxes[ $tax_rate_id ] ) ? $taxes[ $tax_rate_id ] : 0;
}
/**
* Get tax row amounts with or without compound taxes includes.
*
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* @param bool $compound True if getting compound taxes.
* @param bool $display True if getting total to display.
* @return float price
*/
public function get_taxes_total( $compound = true, $display = true ) {
$total = 0;
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$taxes = $this->get_taxes();
foreach ( $taxes as $key => $tax ) {
if ( ! $compound && WC_Tax::is_compound( $key ) ) {
continue;
}
$total += $tax;
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}
if ( $display ) {
$total = wc_format_decimal( $total, wc_get_price_decimals() );
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}
return apply_filters( 'woocommerce_cart_taxes_total', $total, $compound, $display, $this );
}
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/**
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* Gets the total discount amount.
*
* @return mixed formatted price or false if there are none
*/
public function get_total_discount() {
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return apply_filters( 'woocommerce_cart_total_discount', $this->get_discount_total() ? wc_price( $this->get_discount_total() ) : false, $this );
}
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/**
* Reset cart totals to the defaults. Useful before running calculations.
*/
private function reset_totals() {
$this->totals = $this->default_totals;
$this->fees_api->remove_all_fees();
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do_action( 'woocommerce_cart_reset', $this, false );
}
/**
* Returns 'incl' if tax should be included in cart, otherwise returns 'excl'.
*
* @return string
*/
public function get_tax_price_display_mode() {
if ( $this->get_customer() && $this->get_customer()->get_is_vat_exempt() ) {
return 'excl';
}
return get_option( 'woocommerce_tax_display_cart' );
}
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/**
* Returns the hash based on cart contents.
*
* @since 3.6.0
* @return string hash for cart content
*/
public function get_cart_hash() {
$cart_session = $this->session->get_cart_for_session();
$hash = $cart_session ? md5( wp_json_encode( $cart_session ) . $this->get_total( 'edit' ) ) : '';
$hash = apply_filters_deprecated( 'woocommerce_add_to_cart_hash', array( $hash, $cart_session ), '3.6.0', 'woocommerce_cart_hash' );
return apply_filters( 'woocommerce_cart_hash', $hash, $cart_session );
}
}