根据WooCommerce结帐字段值显示/隐藏送货方式 [英] Show/hide shipping methods based on a WooCommerce checkout field value

问题描述

在WooCommerce中，我设置了不同的送货方式，但公司必须特别设置一种.

In WooCommerce, I have set different shipping methods, but one in particular must be exclusive for companies.

为此，我使用以下代码:

For this I am using the following code:

add_filter( 'woocommerce_package_rates', array( $this, 'package_rates' ), 10, 2 );

public function package_rates( $rates, $package ) {
    $company_rate_id = 'flat_rate:7';

    if(!empty(WC()->customer->get_billing_company())){
        $company_rates = $rates[ $company_rate_id ];
        $rates = array( $company_rate_id => $company_rates );
    }else{
        unset( $rates[ $company_rate_id ] );
    }

    return $rates;
}

该解决方案有效，但前提是开票公司已存在并保存在数据库中.因此，如果客户在结帐页面上更新此信息，则该信息将无效.

The solution works, but only if the billing company already exist and is saved in the database. So if a customer updates this information on the checkout page, it doesn't work.

可能的解决方案是将该字段实时保存(billing_company).

A possible solution would be to save this field live (billing_company).

我尝试了以下功能:

add_filter( 'woocommerce_checkout_fields' , 'trigger_update_checkout_on_change' );
function trigger_update_checkout_on_change( $fields ) {

    $fields['billing']['billing_company']['class'][] = 'update_totals_on_change';

    return $fields;
}

这将更新运输方式，问题是，该字段仍未保存在数据库中，并且 package_rates()函数无法实时找到它.

This updates the shipping method, the problem is that again, the field is not saved in the database and the package_rates() function can not find it live.

推荐答案

这比这要复杂一些……需要jQuery和Ajax代码，才能基于结帐字段用户输入显示/隐藏运送方法.

This is a bit more complicated than that… jQuery and Ajax code are required to allow showing/hiding shipping methods based on a checkout field user input.

以下代码将根据结帐公司的字段启用显示/隐藏预定义的运输方式:

The following code will enable show/hide pre defined shipping methods based on checkout billing company field:

// Conditionally show/hide shipping methods
add_filter( 'woocommerce_package_rates', 'shipping_package_rates_filter_callback', 100, 2 );
function shipping_package_rates_filter_callback( $rates, $package ) {
    // The defined rate id
    $company_rate_id = 'flat_rate:7';

    if( WC()->session->get('company' ) === '1' ) {
        $rates = array( $company_rate_id => $rates[ $company_rate_id ] );
    } else {
        unset( $rates[ $company_rate_id ] );
    }
    return $rates;
}

// function that gets the Ajax data
add_action( 'wp_ajax_get_customer_company', 'wc_get_customer_company' );
add_action( 'wp_ajax_nopriv_get_customer_company', 'wc_get_customer_company' );
function wc_get_customer_company() {
    if ( isset($_POST['company']) && ! empty($_POST['company']) ){
        WC()->session->set('company', '1' );
    } else {
        WC()->session->set('company', '0' );
    }
    die(); // (required)
}

// The Jquery Ajax script
add_action( 'wp_footer', 'custom_checkout_script' );
function custom_checkout_script() {
    if( WC()->session->__isset('company') ) 
        WC()->session->__unset('company');

    // Only on checkout when billing company is not defined
    if( is_checkout() && ! is_wc_endpoint_url() ):
    ?>
    <script type="text/javascript">
    jQuery( function($){
        if (typeof wc_checkout_params === 'undefined') 
            return false;

        var fieldId = 'input#billing_company';

        function companyTriggerAjax( company ){
            $.ajax({
                type: 'POST',
                url: wc_checkout_params.ajax_url,
                data: {
                    'action': 'get_customer_company',
                    'company': company,
                },
                success: function (result) {
                    // Trigger refresh checkout
                    $('body').trigger('update_checkout');
                }
            });
        }

        // On start
        if( $(fieldId).val() != '' ) {
            companyTriggerAjax( $(fieldId).val() );
        }

        // On change
        $(fieldId).change( function () {
            companyTriggerAjax( $(this).val() );
        });
    });
    </script>
    <?php
    endif;
}

// 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('company' ) === '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();
}

代码进入您的活动子主题(或活动主题)的function.php文件中.经过测试，可以正常工作.

Code goes in function.php file of your active child theme (or active theme). Tested and works.

相关:删除如果在WooCommerce Checkout中选中了自定义复选框，则运输费用

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