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<?php
/**
* WooCommerce Cart Functions
*
* Functions for cart specific things.
*
* @author WooThemes
* @category Core
* @package WooCommerce/Functions
* @version 2.5.0
*/
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly
}
/**
* Prevent password protected products being added to the cart.
*
* @param bool $passed
* @param int $product_id
* @return bool
*/
function wc_protected_product_add_to_cart( $passed, $product_id ) {
if ( post_password_required( $product_id ) ) {
$passed = false;
wc_add_notice( __( 'This product is protected and cannot be purchased.', 'woocommerce' ), 'error' );
}
return $passed;
}
add_filter( 'woocommerce_add_to_cart_validation', 'wc_protected_product_add_to_cart', 10, 2 );
/**
* Clears the cart session when called.
*/
function wc_empty_cart() {
if ( ! isset( WC()->cart ) || '' === WC()->cart ) {
WC()->cart = new WC_Cart();
}
WC()->cart->empty_cart( false );
}
/**
* Load the persistent cart.
*
* @param string $user_login
* @param WP_User $user
* @deprecated 2.3
*/
function wc_load_persistent_cart( $user_login, $user ) {
if ( ! $user || ! ( $saved_cart = get_user_meta( $user->ID, '_woocommerce_persistent_cart_' . get_current_blog_id(), true ) ) ) {
return;
}
if ( empty( WC()->session->cart ) || ! is_array( WC()->session->cart ) || 0 === sizeof( WC()->session->cart ) ) {
WC()->session->cart = $saved_cart['cart'];
}
}
/**
* Retrieves unvalidated referer from '_wp_http_referer' or HTTP referer.
*
* Do not use for redirects, use {@see wp_get_referer()} instead.
*
* @since 2.6.1
* @return string|false Referer URL on success, false on failure.
*/
function wc_get_raw_referer() {
if ( function_exists( 'wp_get_raw_referer' ) ) {
return wp_get_raw_referer();
}
if ( ! empty( $_REQUEST['_wp_http_referer'] ) ) {
return wp_unslash( $_REQUEST['_wp_http_referer'] );
} elseif ( ! empty( $_SERVER['HTTP_REFERER'] ) ) {
return wp_unslash( $_SERVER['HTTP_REFERER'] );
}
return false;
}
/**
* Add to cart messages.
*
* @param int|array $products
* @param bool $show_qty Should qty's be shown? Added in 2.6.0
* @param bool $return Return message rather than add it.
*
* @return mixed|void
*/
function wc_add_to_cart_message( $products, $show_qty = false, $return = false ) {
$titles = array();
$count = 0;
if ( ! is_array( $products ) ) {
$products = array( $products => 1 );
$show_qty = false;
}
if ( ! $show_qty ) {
$products = array_fill_keys( array_keys( $products ), 1 );
}
foreach ( $products as $product_id => $qty ) {
$titles[] = ( $qty > 1 ? absint( $qty ) . ' × ' : '' ) . sprintf( _x( '“%s”', 'Item name in quotes', 'woocommerce' ), strip_tags( get_the_title( $product_id ) ) );
$count += $qty;
}
$titles = array_filter( $titles );
$added_text = sprintf( _n( '%s has been added to your cart.', '%s have been added to your cart.', $count, 'woocommerce' ), wc_format_list_of_items( $titles ) );
// Output success messages
if ( 'yes' === get_option( 'woocommerce_cart_redirect_after_add' ) ) {
$return_to = apply_filters( 'woocommerce_continue_shopping_redirect', wc_get_raw_referer() ? wp_validate_redirect( wc_get_raw_referer(), false ) : wc_get_page_permalink( 'shop' ) );
$message = sprintf( '<a href="%s" class="button wc-forward">%s</a> %s', esc_url( $return_to ), esc_html__( 'Continue shopping', 'woocommerce' ), esc_html( $added_text ) );
} else {
$message = sprintf( '<a href="%s" class="button wc-forward">%s</a> %s', esc_url( wc_get_page_permalink( 'cart' ) ), esc_html__( 'View cart', 'woocommerce' ), esc_html( $added_text ) );
}
if ( has_filter( 'wc_add_to_cart_message' ) ) {
wc_deprecated_function( 'The wc_add_to_cart_message filter', '3.0', 'wc_add_to_cart_message_html' );
$message = apply_filters( 'wc_add_to_cart_message', $message, $product_id );
}
$message = apply_filters( 'wc_add_to_cart_message_html', $message, $products );
if ( $return ) {
return $message;
} else {
wc_add_notice( $message );
}
}
/**
* Comma separate a list of item names, and replace final comma with 'and'
* @param array $items
* @return string
*/
function wc_format_list_of_items( $items ) {
$item_string = '';
foreach ( $items as $key => $item ) {
$item_string .= $item;
if ( sizeof( $items ) === $key + 2 ) {
$item_string .= ' ' . __( 'and', 'woocommerce' ) . ' ';
} elseif ( sizeof( $items ) !== $key + 1 ) {
$item_string .= ', ';
}
}
return $item_string;
}
/**
* Clear cart after payment.
*
* @access public
*/
function wc_clear_cart_after_payment() {
global $wp;
if ( ! empty( $wp->query_vars['order-received'] ) ) {
$order_id = absint( $wp->query_vars['order-received'] );
$order_key = isset( $_GET['key'] ) ? wc_clean( $_GET['key'] ) : '';
if ( $order_id > 0 ) {
$order = wc_get_order( $order_id );
if ( $order && $order->get_order_key() === $order_key ) {
WC()->cart->empty_cart();
}
}
}
if ( WC()->session->order_awaiting_payment > 0 ) {
$order = wc_get_order( WC()->session->order_awaiting_payment );
if ( $order && $order->get_id() > 0 ) {
// If the order has not failed, or is not pending, the order must have gone through
if ( ! $order->has_status( array( 'failed', 'pending', 'cancelled' ) ) ) {
WC()->cart->empty_cart();
}
}
}
}
add_action( 'get_header', 'wc_clear_cart_after_payment' );
/**
* Get the subtotal.
*
* @access public
*/
function wc_cart_totals_subtotal_html() {
echo WC()->cart->get_cart_subtotal();
}
/**
* Get shipping methods.
*
* @access public
*/
function wc_cart_totals_shipping_html() {
$packages = WC()->shipping->get_packages();
$first = true;
foreach ( $packages as $i => $package ) {
$chosen_method = isset( WC()->session->chosen_shipping_methods[ $i ] ) ? WC()->session->chosen_shipping_methods[ $i ] : '';
$product_names = array();
if ( sizeof( $packages ) > 1 ) {
foreach ( $package['contents'] as $item_id => $values ) {
$product_names[ $item_id ] = $values['data']->get_name() . ' ×' . $values['quantity'];
}
$product_names = apply_filters( 'woocommerce_shipping_package_details_array', $product_names, $package );
}
wc_get_template( 'cart/cart-shipping.php', array(
'package' => $package,
'available_methods' => $package['rates'],
'show_package_details' => sizeof( $packages ) > 1,
'show_shipping_calculator' => is_cart() && $first,
'package_details' => implode( ', ', $product_names ),
// @codingStandardsIgnoreStart
'package_name' => apply_filters( 'woocommerce_shipping_package_name', sprintf( _nx( 'Shipping', 'Shipping %d', ( $i + 1 ), 'shipping packages', 'woocommerce' ), ( $i + 1 ) ), $i, $package ),
// @codingStandardsIgnoreEnd
'index' => $i,
'chosen_method' => $chosen_method,
) );
$first = false;
}
}
/**
* Get taxes total.
*
* @access public
*/
function wc_cart_totals_taxes_total_html() {
echo apply_filters( 'woocommerce_cart_totals_taxes_total_html', wc_price( WC()->cart->get_taxes_total() ) );
}
/**
* Get a coupon label.
*
* @access public
*
* @param string $coupon
* @param bool $echo or return
*
* @return string
*/
function wc_cart_totals_coupon_label( $coupon, $echo = true ) {
if ( is_string( $coupon ) ) {
$coupon = new WC_Coupon( $coupon );
}
$label = apply_filters( 'woocommerce_cart_totals_coupon_label', sprintf( esc_html__( 'Coupon: %s', 'woocommerce' ), $coupon->get_code() ), $coupon );
if ( $echo ) {
echo $label;
} else {
return $label;
}
}
/**
* Get coupon display HTML.
*
* @param string $coupon
*/
function wc_cart_totals_coupon_html( $coupon ) {
if ( is_string( $coupon ) ) {
$coupon = new WC_Coupon( $coupon );
}
$discount_amount_html = '';
if ( $amount = WC()->cart->get_coupon_discount_amount( $coupon->get_code(), WC()->cart->display_cart_ex_tax ) ) {
$discount_amount_html = '-' . wc_price( $amount );
} elseif ( $coupon->get_free_shipping() ) {
$discount_amount_html = __( 'Free shipping coupon', 'woocommerce' );
}
$discount_amount_html = apply_filters( 'woocommerce_coupon_discount_amount_html', $discount_amount_html, $coupon );
$coupon_html = $discount_amount_html . ' <a href="' . esc_url( add_query_arg( 'remove_coupon', urlencode( $coupon->get_code() ), defined( 'WOOCOMMERCE_CHECKOUT' ) ? wc_get_checkout_url() : wc_get_cart_url() ) ) . '" class="woocommerce-remove-coupon" data-coupon="' . esc_attr( $coupon->get_code() ) . '">' . __( '[Remove]', 'woocommerce' ) . '</a>';
echo wp_kses( apply_filters( 'woocommerce_cart_totals_coupon_html', $coupon_html, $coupon, $discount_amount_html ), array_replace_recursive( wp_kses_allowed_html( 'post' ), array( 'a' => array( 'data-coupon' => true ) ) ) );
}
/**
* Get order total html including inc tax if needed.
*
* @access public
*/
function wc_cart_totals_order_total_html() {
$value = '<strong>' . WC()->cart->get_total() . '</strong> ';
// If prices are tax inclusive, show taxes here
if ( wc_tax_enabled() && WC()->cart->tax_display_cart == 'incl' ) {
$tax_string_array = array();
if ( get_option( 'woocommerce_tax_total_display' ) == 'itemized' ) {
foreach ( WC()->cart->get_tax_totals() as $code => $tax ) {
$tax_string_array[] = sprintf( '%s %s', $tax->formatted_amount, $tax->label );
}
} else {
$tax_string_array[] = sprintf( '%s %s', wc_price( WC()->cart->get_taxes_total( true, true ) ), WC()->countries->tax_or_vat() );
}
if ( ! empty( $tax_string_array ) ) {
$taxable_address = WC()->customer->get_taxable_address();
$estimated_text = WC()->customer->is_customer_outside_base() && ! WC()->customer->has_calculated_shipping()
? sprintf( ' ' . __( 'estimated for %s', 'woocommerce' ), WC()->countries->estimated_for_prefix( $taxable_address[0] ) . WC()->countries->countries[ $taxable_address[0] ] )
: '';
$value .= '<small class="includes_tax">' . sprintf( __( '(includes %s)', 'woocommerce' ), implode( ', ', $tax_string_array ) . $estimated_text ) . '</small>';
}
}
echo apply_filters( 'woocommerce_cart_totals_order_total_html', $value );
}
/**
* Get the fee value.
*
* @param object $fee
*/
function wc_cart_totals_fee_html( $fee ) {
$cart_totals_fee_html = ( 'excl' == WC()->cart->tax_display_cart ) ? wc_price( $fee->total ) : wc_price( $fee->total + $fee->tax );
echo apply_filters( 'woocommerce_cart_totals_fee_html', $cart_totals_fee_html, $fee );
}
/**
* Get a shipping methods full label including price.
* @param WC_Shipping_Rate $method
* @return string
*/
function wc_cart_totals_shipping_method_label( $method ) {
$label = $method->get_label();
if ( $method->cost > 0 ) {
if ( WC()->cart->tax_display_cart == 'excl' ) {
$label .= ': ' . wc_price( $method->cost );
if ( $method->get_shipping_tax() > 0 && wc_prices_include_tax() ) {
$label .= ' <small class="tax_label">' . WC()->countries->ex_tax_or_vat() . '</small>';
}
} else {
$label .= ': ' . wc_price( $method->cost + $method->get_shipping_tax() );
if ( $method->get_shipping_tax() > 0 && ! wc_prices_include_tax() ) {
$label .= ' <small class="tax_label">' . WC()->countries->inc_tax_or_vat() . '</small>';
}
}
}
return apply_filters( 'woocommerce_cart_shipping_method_full_label', $label, $method );
}
/**
* Round discount.
*
* @param float $value
* @param int $precision
* @return float
*/
function wc_cart_round_discount( $value, $precision ) {
if ( version_compare( PHP_VERSION, '5.3.0', '>=' ) ) {
return round( $value, $precision, WC_DISCOUNT_ROUNDING_MODE );
} else {
// Fake it in PHP 5.2.
if ( 2 === WC_DISCOUNT_ROUNDING_MODE && strstr( $value, '.' ) ) {
$value = (string) $value;
$value = explode( '.', $value );
$value[1] = substr( $value[1], 0, $precision + 1 );
$value = implode( '.', $value );
if ( substr( $value, -1 ) === '5' ) {
$value = substr( $value, 0, -1 ) . '4';
}
$value = floatval( $value );
}
return round( $value, $precision );
}
}
/**
* Gets chosen shipping method IDs from chosen_shipping_methods session, without instance IDs.
* @since 2.6.2
* @return string[]
*/
function wc_get_chosen_shipping_method_ids() {
$method_ids = array();
$chosen_methods = WC()->session->get( 'chosen_shipping_methods', array() );
foreach ( $chosen_methods as $chosen_method ) {
$chosen_method = explode( ':', $chosen_method );
$method_ids[] = current( $chosen_method );
}
return $method_ids;
}
/**
* Get chosen method for package from session.
*
* @since 3.2.0
* @param int $key Key of package.
* @param array $package Package data array.
* @return string|bool
*/
function wc_get_chosen_shipping_method_for_package( $key, $package ) {
$chosen_methods = WC()->session->get( 'chosen_shipping_methods' );
$chosen_method = isset( $chosen_methods[ $key ] ) ? $chosen_methods[ $key ] : false;
$changed = wc_shipping_methods_have_changed( $key, $package );
// This is deprecated but here for BW compat. TODO: Remove in 4.0.0
$method_counts = WC()->session->get( 'shipping_method_counts' );
if ( ! empty( $method_counts[ $key ] ) ) {
$method_count = absint( $method_counts[ $key ] );
} else {
$method_count = 0;
}
// If not set, not available, or available methods have changed, set to the DEFAULT option.
if ( ! $chosen_method || $changed || ! isset( $package['rates'][ $chosen_method ] ) || sizeof( $package['rates'] ) !== $method_count ) {
$chosen_method = wc_get_default_shipping_method_for_package( $key, $package, $chosen_method );
$chosen_methods[ $key ] = $chosen_method;
$method_counts[ $key ] = sizeof( $package['rates'] );
WC()->session->set( 'chosen_shipping_methods', $chosen_methods );
WC()->session->set( 'shipping_method_counts', $method_counts );
do_action( 'woocommerce_shipping_method_chosen', $chosen_method );
}
return $chosen_method;
}
/**
* Choose the default method for a package.
*
* @since 3.2.0
* @param int $key Key of package.
* @param array $package Package data array.
* @param string $chosen_method Cgosen method id.
* @return string
*/
function wc_get_default_shipping_method_for_package( $key, $package, $chosen_method ) {
$rate_keys = array_keys( $package['rates'] );
$default = current( $rate_keys );
$coupons = WC()->cart->get_coupons();
foreach ( $coupons as $coupon ) {
if ( $coupon->get_free_shipping() ) {
foreach ( $rate_keys as $rate_key ) {
if ( 0 === stripos( $rate_key, 'free_shipping' ) ) {
$default = $rate_key;
break;
}
}
break;
}
}
return apply_filters( 'woocommerce_shipping_chosen_method', $default, $package['rates'], $chosen_method );
}
/**
* See if the methods have changed since the last request.
*
* @since 3.2.0
* @param int $key Key of package.
* @param array $package Package data array.
* @return bool
*/
function wc_shipping_methods_have_changed( $key, $package ) {
// Lookup previous methods from session.
$previous_shipping_methods = WC()->session->get( 'previous_shipping_methods' );
// Get new and old rates.
$new_rates = array_keys( $package['rates'] );
$prev_rates = isset( $previous_shipping_methods[ $key ] ) ? $previous_shipping_methods[ $key ] : false;
// Update session.
$previous_shipping_methods[ $key ] = $new_rates;
WC()->session->set( 'previous_shipping_methods', $previous_shipping_methods );
return $new_rates !== $prev_rates;
}