自定义下拉选择器显示或隐藏其他Checkout自定义字段
我使用此代码创建自定义结帐字段并重新排序字段：
add_filter( 'woocommerce_checkout_fields', 'custom_checkout_billing_fields' ); function custom_checkout_billing_fields( $fields ) { // 1. Creating the additional custom billing fields // The "status" selector $fields['billing']['billing_status']['type'] = 'select'; $fields['billing']['billing_status']['class'] = array('form-row-wide, status-select'); $fields['billing']['billing_status']['required'] = true; $fields['billing']['billing_status']['label'] = __('User status', 'my_theme_slug'); $fields['billing']['billing_status']['placeholder'] = __('Chose an option', 'my_theme_slug'); $fields['billing']['billing_status']['options'] = array( '' => 'Chose an option', '1' => 'Legal entity', '2' => 'Individual' ); // The "Serial ID" text field $fields['billing']['billing_number_id']['type'] = 'text'; $fields['billing']['billing_number_id']['class'] = array('form-row-wide', 'status-group1'); $fields['billing']['billing_number_id']['required'] = true; $fields['billing']['billing_number_id']['label'] = __('Serial ID', 'my_theme_slug'); $fields['billing']['billing_number_id']['placeholder'] = __('Enter your Serial ID', 'my_theme_slug'); // Customizing 'billing_company' field ['required'] $fields['billing']['billing_company']['required'] = false; // The "Serial ID" text field $fields['billing']['billing_serial']['type'] = 'text'; $fields['billing']['billing_serial']['class'] = array('form-row-wide', 'status-group1'); $fields['billing']['billing_serial']['required'] = false; $fields['billing']['billing_serial']['label'] = __('Serial ID', 'my_theme_slug'); $fields['billing']['billing_serial']['placeholder'] = __('Enter your Serial ID', 'my_theme_slug'); // 2. Customizing 'billing_email' and 'billing_phone' fields ['class'] $fields['billing']['billing_email']['class'] = array('form-row-first', 'status-group1'); $fields['billing']['billing_phone']['class'] = array('form-row-last', 'status-group1'); // 3. Ordering the billing fields $fields_order = array( 'billing_first_name', 'billing_last_name', 'billing_email', 'billing_phone', 'billing_address_1', 'billing_address_2', 'billing_postcode', 'billing_city', 'billing_country', 'billing_status', 'billing_company', 'billing_number_id', 'billing_serial' ); foreach($fields_order as $field) $ordered_fields[$field] = $fields['billing'][$field]; $fields['billing'] = $ordered_fields; // Returning Checkout customized billing fields return $fields; } 条件机制：
- 默认情况下，
billing_status下拉选择器将显示在“Individual选项值上，并且仅显示billing_serial自定义字段。 - 当
billing_status下拉选择器切换到"Company"**选项值时，将显示另外两个字段：-
billing_company现有字段（在billing_serial之前） -
billing_number_id自定义字段（最后）
-
我怎样才能做到这一点？
谢谢
参考： WooCommerce – 结帐不同人员自定义状态的条件字段
对于WooCommerce 3+ （更新） ：
由于WooCommerce 3.0结帐字段已经发生了一些变化，因此无法像以前那样对字段进行重新排序。
有一个新的‘priority’参数可以处理字段顺序 ，也可以用于结帐字段和我的帐户字段。
下面我只是更新与订购字段相关的部分：
## 3. Ordering the billing fields // Set the order of the fields $billing_fields_new_order = array( 'billing_first_name', 'billing_last_name', 'billing_email', 'billing_phone', 'billing_address_1', 'billing_address_2', 'billing_postcode', 'billing_city', 'billing_country', 'billing_status', 'billing_company', 'billing_number_id', 'billing_ser_id' ); $count = 0; $priority = 10; // Updating the 'priority' argument foreach($billing_fields_new_order as $field_name){ $count++; $fields['billing'][$field_name]['priority'] = $count * $priority; } // END: returning the customized checkout fields return $fields;
参考： 在WooCommerce 3中重新排序结帐字段
原始答案：
这是一个带有jQuery / JS脚本的解决方案，可以像你期望的那样使条件机制工作…… php代码完成了一些必需function……
PHP代码 （进入function.php）：
// Registering external jQuery/JS file function cfields_scripts() { /* IMPORTANT NOTE: For a child theme replace get_template_directory_uri() by get_stylesheet_directory_uri() The external cfields.js file goes in a subfolder "js" of your active child theme or theme.*/ wp_enqueue_script( 'checkout_script', get_template_directory_uri().'/js/cfields.js', array('jquery'), '1.0', true ); } add_action( 'wp_enqueue_scripts', 'cfields_scripts' ); add_filter( 'woocommerce_checkout_fields', 'custom_checkout_billing_fields' ); function custom_checkout_billing_fields( $fields ) { // 1. Creating the additional custom billing fields // The "status" selector $fields['billing']['billing_status']['type'] = 'select'; $fields['billing']['billing_status']['class'] = array('form-row-wide, status-select'); $fields['billing']['billing_status']['required'] = true; $fields['billing']['billing_status']['label'] = __('User status', 'my_theme_slug'); $fields['billing']['billing_status']['placeholder'] = __('Chose an option', 'my_theme_slug'); $fields['billing']['billing_status']['options'] = array( '1' => __( 'Individual', '' ), '2' => __( 'Company', '' ) ); // Customizing 'billing_company' field ['required'] $fields['billing']['billing_company']['required'] = false; $fields['billing']['billing_company']['class'] = array('form-row-wide', 'status-group2'); // The "Number ID" text field $fields['billing']['billing_number_id']['type'] = 'text'; $fields['billing']['billing_number_id']['class'] = array('form-row-wide'); $fields['billing']['billing_number_id']['required'] = true; $fields['billing']['billing_number_id']['label'] = __('Number ID', 'my_theme_slug'); $fields['billing']['billing_number_id']['placeholder'] = __('Enter your Number ID', 'my_theme_slug'); // The "Serial identification" text field $fields['billing']['billing_ser_id']['type'] = 'text'; $fields['billing']['billing_ser_id']['class'] = array('form-row-wide', 'status-group2'); $fields['billing']['billing_ser_id']['required'] = false; $fields['billing']['billing_ser_id']['label'] = __('Serial identification', 'my_theme_slug'); $fields['billing']['billing_ser_id']['placeholder'] = __('Enter your Serial identification', 'my_theme_slug'); // 3. Ordering the billing fields $fields_order = array( 'billing_first_name', 'billing_last_name', 'billing_email', 'billing_phone', 'billing_address_1', 'billing_address_2', 'billing_postcode', 'billing_city', 'billing_country', 'billing_status', 'billing_company', 'billing_number_id', 'billing_ser_id' ); foreach($fields_order as $field) $ordered_fields[$field] = $fields['billing'][$field]; $fields['billing'] = $ordered_fields; // Returning Checkout customized billing fields return $fields; } // Process the checkout add_action('woocommerce_checkout_process', 'my_custom_checkout_field_process'); function custom_checkout_field_process() { // Check if set, if its not set add an error. if ( ! $_POST['billing_number_id'] ) wc_add_notice( __( 'Please enter your Number ID.', 'my_theme_slug' ), 'error' ); if ( ! $_POST['billing_ser_id'] ) wc_add_notice( __( 'Please enter your Serial id.' , 'my_theme_slug' ), 'error' ); } // Update the order meta with field value add_action( 'woocommerce_checkout_update_order_meta', 'custom_checkout_field_update_order_meta' ); function custom_checkout_field_update_order_meta( $order_id ) { if ( ! empty( $_POST['billing_number_id'] ) ) update_post_meta( $order_id, 'billing_number_id', sanitize_text_field( $_POST['billing_number_id'] ) ); if ( ! empty( $_POST['billing_ser_id'] ) ) update_post_meta( $order_id, 'billing_ser_id', sanitize_text_field( $_POST['billing_ser_id'] ) ); } // Display field value on the order edit page add_action( 'woocommerce_admin_order_data_after_billing_address', 'custom_checkout_field_display_admin_order_meta', 10, 1 ); function custom_checkout_field_display_admin_order_meta($order){ echo ''.__('My number ID').': ' . get_post_meta( $order->id, 'billing_number_id', true ) . '
'; echo ''.__('My serial identification').': ' . get_post_meta( $order->id, 'billing_ser_id', true ) . '
'; }
Javascript cfields.js代码 （外部文件）：
// This file named "cfields.js" goes in a subfolder "js" of your active child theme or theme jQuery(document).ready(function($){ $('#billing_company_field').hide(function(){ $(this).removeClass("validate-required"); }); $('#billing_ser_id_field').hide(function(){ $(this).removeClass("validate-required"); }); $("#billing_number_id_field").addClass("validate-required"); $("#billing_status").change(function(){ if($("#billing_status option:selected").val() == "2"){ $('#billing_company_field').show(function(){ $(this).addClass("validate-required"); }); $('#billing_ser_id_field').show(function(){ $(this).addClass("validate-required"); }); } else if($("#billing_status option:selected").val() == "1"){ $('#billing_company_field').hide(function(){ $(this).removeClass("validate-required"); }); $('#billing_ser_id_field').hide(function(){ $(this).removeClass("validate-required"); }); } }); });
所有这些代码都经过测试和运行