問題描述

如果選中結帳字段中的復選框，我將嘗試將運費價格設置為 0.00 美元.

I am trying to set the price of shipping rates to $0.00 if a checkbox in the checkout fields is checked.

當前嘗試:

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 );

As $post_data['billing_ups_yn'] 是我設置的復選框，用于在觸發時更新結帳.

As $post_data['billing_ups_yn'] being the checkbox that I set to update the checkout when triggered.

只需選中復選框，然后應用過濾器將運費設置為 ??0.
但是，這不起作用.

Simply if the checkbox is checked, then apply the filter to set shipping rates to 0.
This, however, isn't working.

推薦答案

通過 Ajax 在結帳頁面中的自定義 javascript 事件上更改運輸方式成本比有條件地更改費用或其他任何事情要復雜得多，如下所示.

To alter shipping methods cost via Ajax on a custom javascript event in checkout page is quiet more complicated than conditionally altering fees or anything else as you will see below.

為了存儲 Ajax 數據，我使用 WC_Sessions 并改變運輸方式成本只有在您操縱運輸會話數據

To store the Ajax data I use WC_Sessions and to alter Shipping methods costs will only work if you manipulate the shipping sessions data

完整的工作代碼:

// 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
}

代碼位于活動子主題(或活動主題)的 function.php 文件中.

經過測試并有效.

與您的評論相關的更新:

如果您希望在加載時始終默認取消選中復選框，您將用這個函數替換第一個函數:

If you wish to have always the checkbox unchecked by default at load you will replace the first function by this one:

// 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'),
    ), '' );
}

這篇關于如果在 WooCommerce Checkout 中選中自定義復選框，則刪除運費的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！