woocommerce/includes/shortcodes/class-wc-shortcode-cart.php

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<?php
/**
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* Cart Shortcode
*
* Used on the cart page, the cart shortcode displays the cart contents and interface for coupon codes and other cart bits and pieces.
*
* @author WooThemes
* @category Shortcodes
* @package WooCommerce/Shortcodes/Cart
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* @version 2.3.0
*/
class WC_Shortcode_Cart {
/**
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* Calculate shipping for the cart.
*/
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public static function calculate_shipping() {
try {
WC()->shipping->reset_shipping();
$country = wc_clean( $_POST['calc_shipping_country'] );
$state = wc_clean( isset( $_POST['calc_shipping_state'] ) ? $_POST['calc_shipping_state'] : '' );
$postcode = apply_filters( 'woocommerce_shipping_calculator_enable_postcode', true ) ? wc_clean( $_POST['calc_shipping_postcode'] ) : '';
$city = apply_filters( 'woocommerce_shipping_calculator_enable_city', false ) ? wc_clean( $_POST['calc_shipping_city'] ) : '';
if ( $postcode && ! WC_Validation::is_postcode( $postcode, $country ) ) {
throw new Exception( __( 'Please enter a valid postcode/ZIP.', 'woocommerce' ) );
} elseif ( $postcode ) {
$postcode = wc_format_postcode( $postcode, $country );
}
if ( $country ) {
WC()->customer->set_location( $country, $state, $postcode, $city );
WC()->customer->set_shipping_location( $country, $state, $postcode, $city );
} else {
WC()->customer->set_to_base();
WC()->customer->set_shipping_to_base();
}
WC()->customer->calculated_shipping( true );
wc_add_notice( __( 'Shipping costs updated.', 'woocommerce' ), 'notice' );
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do_action( 'woocommerce_calculated_shipping' );
} catch ( Exception $e ) {
if ( ! empty( $e ) ) {
wc_add_notice( $e->getMessage(), 'error' );
}
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}
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}
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/**
* Output the cart shortcode.
*/
public static function output() {
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// Constants
if ( ! defined( 'WOOCOMMERCE_CART' ) ) {
define( 'WOOCOMMERCE_CART', true );
}
// Update Shipping
if ( ! empty( $_POST['calc_shipping'] ) && wp_verify_nonce( $_POST['_wpnonce'], 'woocommerce-cart' ) ) {
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self::calculate_shipping();
// Also calc totals before we check items so subtotals etc are up to date
WC()->cart->calculate_totals();
}
// Check cart items are valid
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do_action( 'woocommerce_check_cart_items' );
// Calc totals
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WC()->cart->calculate_totals();
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if ( WC()->cart->is_empty() ) {
wc_get_template( 'cart/cart-empty.php' );
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} else {
wc_get_template( 'cart/cart.php' );
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}
}
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}