如果在 WooCommerce Checkout 中选中了自定义复选框，则删除运费

Question

如果选中结帐字段中的复选框，我正在尝试将运费价格设置为 0.00 美元。

当前尝试：

function no_shipping_for_own_ups($rates,$package) {
    foreach ($rates as $rate) {
        //Set the price
        $rate->cost = 0;
    }
    return $rates;
}

function woo_add_cart_ups_y_n_fee( $cart ){
    if ( ! $_POST || ( is_admin() && ! is_ajax() ) ) {
        return;
    }

    if ( isset( $_POST['post_data'] ) ) {
        parse_str( $_POST['post_data'], $post_data );
    } else {
        $post_data = $_POST;
    }

    if (isset($post_data['billing_ups_yn'])) {
        add_filter( 'woocommerce_package_rates','no_shipping_for_own_ups', 99, 2 );
    }
}
add_action( 'woocommerce_cart_calculate_fees', 'woo_add_cart_ups_y_n_fee', 43, 1 );

因为 $post_data['billing_ups_yn'] 是我设置为在触发时更新结帐的复选框。

只需选中复选框，然后应用过滤器将运费设置为 0。
但是，这不起作用。

Answer 1

大约 3 年前我有一个类似的项目，有单选按钮和日期选择器，它们将同时修改和更新运费 details/amount 更改后，单选按钮将修改运费附加费，日期选择器将有 -从日历中选择星期六和星期五时的 10 折扣价。

工作示例here

我假设你了解 PHP 和 AJax 并且可以修改它，你只需要修改一些东西，比如会话值和计算以及那些 jquery 选择器和表单字段选择器

函数处理ajax请求，目的是只赋$_SESSION值

add_action('wp_ajax_woo_modify_charges', 'etq_calculate', 10);
add_action('wp_ajax_nopriv_woo_modify_charges', 'etq_calculate', 10);
function etq_calculate() {
    global $woocommerce;
    $charge = isset($_POST['billing_area']) ? $_POST['billing_area'] : 'no';
    $deldate = isset($_POST['jck_delivery_date']) ? $_POST['jck_delivery_date'] : '06/08/2015';
    $delday = strtotime(str_replace('/', '-', $deldate));
    $day = date('l', $delday);
    if ( $day === 'Saturday' || $day === 'Friday') $val = -10;
    else $val = 0;

    if ( $charge === 'no' ) $surchage = 0;
    else $surchage = 10; 

    if( !isset($_SESSION) ) session_start();
    $_SESSION['val'] = $val;
    $_SESSION['surcharge'] = $surchage;
}

下一个函数是从 $_SESSION 的值挂钩对 woocommerce_cart_calculate_fees 的修改。这是价格更新发生的地方

add_action('woocommerce_cart_calculate_fees', 'woo_change_cart_fee');
function woo_change_cart_fee() {
    if(!isset($_SESSION)) session_start();
    $surcharge = isset($_SESSION['surcharge']) ? $_SESSION['surcharge'] : 0;
    $discount = isset($_SESSION['val']) ? $_SESSION['val'] : 0;

    if ( $surcharge !== '0' ) WC()->cart->add_fee('Shipping Surchage', $surcharge, false, '');
    if ( $discount !== '0' ) WC()->cart->add_fee('Delivery Discount', $discount, false, '');
}

然后 jquery 脚本处理 ajax

(function($){
    'use strict';
    $(document).ready( function() { 

        var $date_field = $('#jck_delivery_date');

        // update cart on delivery date changes
        $('#jck_delivery_date').bind('change', function () {
                if ($('#billing_area_yes').is(':checked')) {
                    var surcharge = $('#billing_area_yes').val();
                    $('#billing_area_yes').prop('checked', true);
                } else {
                    var surcharge = 'no';
                }

                var deldate = $('#jck_delivery_date').val();
                var data = {
                    action: 'woo_modify_charges',
                    jck_delivery_date: deldate,
                    billing_area: surcharge
                };

                $.ajax({
                    type: 'POST',
                    url: wc_checkout_params.ajax_url,
                    data: data,
                    success: function (code) {
                        console.log(code);
                        //jQuery('.woocommerce-error, .woocommerce-message').remove();

                        if (code === '0') {
                            //$form.before(code);
                            $('body').trigger('update_checkout');
                        }
                    },
                    dataType: 'html'
                });

                return false;
        });

        // update cart on delivery location checkbox option
        $('#billing_area_field input').change( function () {
            if ($('#billing_area_yes').is(':checked')) {
                var surcharge = $('#billing_area_yes').val();
            } else {
                var surcharge = 'no';
            }
            var deldate = $('#jck_delivery_date').val();
            console.log( surcharge );
            var data = {
                action: 'woo_modify_charges',
                billing_area: surcharge,
                jck_delivery_date: deldate,
            };

            $.ajax({
                type: 'POST',
                url: wc_checkout_params.ajax_url,
                data: data,
                success: function (code) {
                    console.log(code);
                    //jQuery('.woocommerce-error, .woocommerce-message').remove();

                    if (code === '0') {
                        //$form.before(code);
                        $('body').trigger('update_checkout');
                    }
                },
                dataType: 'html'
            });

            return false;
        });
    });
})(jQuery);

Answer 2

通过 Ajax 在结帐页面中的自定义 javascript 事件更改运输方式成本比有条件地更改费用或您将在下面看到的任何其他内容要复杂得多。

为了存储 Ajax 数据，我使用 WC_Sessions 并 改变运输方式成本 只有在 你操纵运输时才有效会话数据

完整的工作代码：

// Add a Custom checkbox field for shipping options (just for testing)
add_action( 'woocommerce_after_checkout_billing_form', 'custom_billing_checkbox_for_testing', 10, 1 );
function custom_billing_checkbox_for_testing( $checkout ) {
    $field_id = 'billing_ups_yn';

    // Get the checked state if exist
    $billing_ups = WC()->session->get('billing_ups' );
    if(empty($billing_ups))
        $billing_ups = $checkout->get_value( $field_id );

    // Add the custom checkout field (checkbox)
    woocommerce_form_field( $field_id, array(
        'type' => 'checkbox',
        'class' => array( 'form-row-wide' ),
        'label' => __('Billing UPS'),
    ), $billing_ups );
}

// function that gets the Ajax data
add_action( 'wp_ajax_woo_get_ajax_data', 'woo_get_ajax_data' );
add_action( 'wp_ajax_nopriv_woo_get_ajax_data', 'woo_get_ajax_data' );
function woo_get_ajax_data() {
    if ( $_POST['billing_ups'] == '1' ){
        WC()->session->set('billing_ups', '1' );
    } else {
        WC()->session->set('billing_ups', '0' );
    }
    echo json_encode( WC()->session->get('billing_ups' ) );
    die(); // Alway at the end (to avoid server error 500)
}

// Conditionally changing the shipping methods costs
add_filter( 'woocommerce_package_rates','conditional_custom_shipping_cost', 90, 2 );
function conditional_custom_shipping_cost( $rates, $package ) {

    if ( WC()->session->get('billing_ups' ) == '1' ){
        foreach ( $rates as $rate_key => $rate_values ) {
            // Not for "Free Shipping method" (all others only)
            if ( 'free_shipping' !== $rate_values->method_id ) {

                // Set the rate cost
                $rates[$rate_key]->cost = 0;

                // Set taxes rate cost (if enabled)
                $taxes = array();
                foreach ($rates[$rate_key]->taxes as $key => $tax)
                    if( $rates[$rate_key]->taxes[$key] > 0 ) // set the new tax cost
                        $taxes[$key] = 0;
                $rates[$rate_key]->taxes = $taxes;
            }
        }
    }
    return $rates;
}

// Enabling, disabling and refreshing session shipping methods data
add_action( 'woocommerce_checkout_update_order_review', 'refresh_shipping_methods', 10, 1 );
function refresh_shipping_methods( $post_data ){
    $bool = true;
    if ( WC()->session->get('billing_ups' ) == '1' ) $bool = false;

    // Mandatory to make it work with shipping methods
    foreach ( WC()->cart->get_shipping_packages() as $package_key => $package ){
        WC()->session->set( 'shipping_for_package_' . $package_key, $bool );
    }
    WC()->cart->calculate_shipping();
}

// The Jquery script
add_action( 'wp_footer', 'custom_checkout_script' );
function custom_checkout_script() {
    ?>
    <script type="text/javascript">
        jQuery( function($){

            // update cart on delivery location checkbox option
            $('#billing_ups_yn_field input').change( function () {
                var checked = 0;
                if ( $('#billing_ups_yn').is(':checked') )
                    checked = 1;

                $.ajax({
                    type: 'POST',
                    url: wc_checkout_params.ajax_url,
                    data: {
                        'action': 'woo_get_ajax_data',
                        'billing_ups': checked,
                    },
                    success: function (result) {
                        $('body').trigger('update_checkout');
                        console.log('response: '+result); // just for testing
                    },
                    error: function(error){
                        console.log(error); // just for testing
                    }
                });
            });
        });
    </script>
    <?php
}

代码进入您的活动子主题（或活动主题）的 function.php 文件。

已测试并有效。

与您的评论相关的更新：

如果您希望在加载时默认情况下始终取消选中该复选框，您将用这个函数替换第一个函数：

// Add a Custom checkbox field for shipping options (just for testing)
add_action( 'woocommerce_after_checkout_billing_form', 'custom_billing_checkbox_for_testing', 10, 1 );
function custom_billing_checkbox_for_testing( $checkout ) {
    $field_id = 'billing_ups_yn';

    // Add the custom checkout field (checkbox)
    woocommerce_form_field( $field_id, array(
        'type' => 'checkbox',
        'class' => array( 'form-row-wide' ),
        'label' => __('Billing UPS'),
    ), '' );
}

如果在 WooCommerce Checkout 中选中了自定义复选框，则删除运费

Remove shipping cost if custom checkbox is checked in WooCommerce Checkout

php

ajax

jquery

shipping

woocommerce