您的代码中存在一些错误、错误和缺失的内容……这是一个完整的插件文件，当在结账页面中选择它时，它可以添加到网关上的“特殊”付款单选按钮。
所选的“交易类型”单选按钮值将作为自定义元数据保存在订单中。
所选的“交易类型”值将显示在：
- 订单已收到页面，我的帐户 > 查看订单
- 管理员编辑订单页面
- 关于电子邮件通知
在订单查看页面上：
这是完整的插件代码：
<?php
/**
* Plugin Name: WooCommerce Special Payment Gateway
* Plugin URI:
* Description: custom Special payment method.
* Author: Me
* Author URI: http://www.something.tld/
* Version: 1.1.0
* Text Domain: wcpg-special
* Domain Path: /i18n/languages/
*
* Copyright: (c) 2018
*
* License: GNU General Public License v3.0
* License URI: http://www.gnu.org/licenses/gpl-3.0.html
*
* @package wcpg-special
* @author Me
* @category Admin
* @copyright Copyright (c) 2016-2018
* @license http://www.gnu.org/licenses/gpl-3.0.html GNU General Public License v3.0
*/
defined( 'ABSPATH' ) or exit;
// Make sure WooCommerce is active
if ( ! in_array( 'woocommerce/woocommerce.php', apply_filters( 'active_plugins', get_option( 'active_plugins' ) ) ) ) {
return;
}
/**
* Add the gateway to WC Available Gateways
*
* @since 1.0.0
* @param array $gateways all available WC gateways
* @return array $gateways all WC gateways + Custom Special gateway
*/
function wc_add_special_to_gateways( $gateways ) {
$gateways[] = 'WC_Gateway_Special';
return $gateways;
}
add_filter( 'woocommerce_payment_gateways', 'wc_add_special_to_gateways' );
/**
* Adds plugin page links
*
* @since 1.0.0
* @param array $links all plugin links
* @return array $links all plugin links + our custom links (i.e., "Settings")
*/
function wc_special_gateway_plugin_links( $links ) {
$plugin_links = array(
'<a href="' . admin_url( 'admin.php?page=wc-settings&tab=checkout§ion=special_payment' ) . '">' . __( 'Configure', 'wcpg-special' ) . '</a>'
);
return array_merge( $plugin_links, $links );
}
add_filter( 'plugin_action_links_' . plugin_basename( __FILE__ ), 'wc_special_gateway_plugin_links' );
/**
* Custom Payment Gateway
*
* Provides an Custom Payment Gateway; mainly for testing purposes.
* We load it later to ensure WC is loaded first since we're extending it.
*
* @class WC_Gateway_Special
* @extends WC_Payment_Gateway
* @version 1.0.0
* @package WooCommerce/Classes/Payment
* @author Me
*/
add_action( 'plugins_loaded', 'wc_special_gateway_init', 11 );
function wc_special_gateway_init() {
class WC_Gateway_Special extends WC_Payment_Gateway {
public $domain;
/**
* Constructor for the gateway.
*/
public function __construct() {
$this->id = 'special_payment';
$this->domain = 'wcpg-special';
$this->icon = apply_filters('woocommerce_payment_gateway_icon', '');
$this->has_fields = false;
$this->method_title = __( 'Custom Payment', $this->domain );
// Define "payment type" radio buttons options field
$this->options = array(
'type1' => __( 'Type 1', $this->domain ),
'type2' => __( 'Type 2', $this->domain ),
'type3' => __( 'Type 3', $this->domain ),
);
// Load the settings.
$this->init_form_fields();
$this->init_settings();
// Define user set variables
$this->title = $this->get_option( 'title' );
$this->description = $this->get_option( 'description' );
$this->instructions = $this->get_option( 'instructions' );
$this->order_status = $this->get_option( 'order_status' );
$this->status_text = $this->get_option( 'status_text' );
// Actions
add_action( 'woocommerce_update_options_payment_gateways_' . $this->id, array( $this, 'process_admin_options' ) );
add_action( 'woocommerce_checkout_create_order', array( $this, 'save_order_payment_type_meta_data' ), 10, 2 );
add_filter( 'woocommerce_get_order_item_totals', array( $this, 'display_transaction_type_order_item_totals'), 10, 3 );
add_action( 'woocommerce_admin_order_data_after_billing_address', array( $this, 'display_payment_type_order_edit_pages'), 10, 1 );
add_action( 'woocommerce_thankyou_' . $this->id, array( $this, 'thankyou_page' ) );
// Customer Emails
add_action( 'woocommerce_email_before_order_table', array( $this, 'email_instructions' ), 10, 3 );
}
/**
* Initialize Gateway Settings Form Fields
*/
public function init_form_fields() {
$this->form_fields = apply_filters( 'wc_special_payment_form_fields', array(
'enabled' => array(
'title' => __( 'Enable/Disable', $this->domain ),
'type' => 'checkbox',
'label' => __( 'Enable Special Payment', $this->domain ),
'default' => 'yes'
),
'title' => array(
'title' => __( 'Title', $this->domain ),
'type' => 'text',
'description' => __( 'This controls the title for the payment method the customer sees during checkout.', $this->domain ),
'default' => __( 'Special Payment', $this->domain ),
'desc_tip' => true,
),
'description' => array(
'title' => __( 'Description', $this->domain ),
'type' => 'textarea',
'description' => __( 'Payment method description that the customer will see on your checkout.', $this->domain ),
'default' => __( 'Please remit payment to Store Name upon pickup or delivery.', $this->domain ),
'desc_tip' => true,
),
'instructions' => array(
'title' => __( 'Instructions', $this->domain ),
'type' => 'textarea',
'description' => __( 'Instructions that will be added to the thank you page and emails.', $this->domain ),
'default' => '', // Empty by default
'desc_tip' => true,
),
'order_status' => array(
'title' => __( 'Order Status', $this->domain ),
'type' => 'select',
'description' => __( 'Choose whether order status you wish after checkout.', $this->domain ),
'default' => 'wc-completed',
'desc_tip' => true,
'class' => 'wc-enhanced-select',
'options' => wc_get_order_statuses()
),
'status_text' => array(
'title' => __( 'Order Status Text', $this->domain ),
'type' => 'text',
'description' => __( 'Set the text for the selected order status.', $this->domain ),
'default' => __( 'Order is completed', $this->domain ),
'desc_tip' => true,
),
) );
}
/**
* Output the "payment type" radio buttons fields in checkout.
*/
public function payment_fields(){
if ( $description = $this->get_description() ) {
echo wpautop( wptexturize( $description ) );
}
echo '<style>#transaction_type_field label.radio { display:inline-block; margin:0 .8em 0 .4em}</style>';
$option_keys = array_keys($this->options);
woocommerce_form_field( 'transaction_type', array(
'type' => 'radio',
'class' => array('transaction_type form-row-wide'),
'label' => __('Payment Information', $this->domain),
'options' => $this->options,
), reset( $option_keys ) );
}
/**
* Save the chosen payment type as order meta data.
*
* @param object $order
* @param array $data
*/
public function save_order_payment_type_meta_data( $order, $data ) {
if ( $data['payment_method'] === $this->id && isset($_POST['transaction_type']) )
$order->update_meta_data('_transaction_type', esc_attr($_POST['transaction_type']) );
}
/**
* Output for the order received page.
*
* @param int $order_id
*/
public function thankyou_page( $order_id ) {
$order = wc_get_order( $order_id );
if ( $this->instructions ) {
echo wpautop( wptexturize( $this->instructions ) );
}
}
/**
* Display the chosen payment type on the order edit pages (backend)
*
* @param object $order
*/
public function display_payment_type_order_edit_pages( $order ){
if( $this->id === $order->get_payment_method() && $order->get_meta('_transaction_type') ) {
$options = $this->options;
echo '<p><strong>'.__('Transaction type').':</strong> ' . $options[$order->get_meta('_transaction_type')] . '</p>';
}
}
/**
* Display the chosen payment type on order totals table
*
* @param array $total_rows
* @param WC_Order $order
* @param bool $tax_display
* @return array
*/
public function display_transaction_type_order_item_totals( $total_rows, $order, $tax_display ){
if( is_a( $order, 'WC_Order' ) && $order->get_meta('_transaction_type') ) {
$new_rows = []; // Initializing
$options = $this->options;
// Loop through order total lines
foreach( $total_rows as $total_key => $total_values ) {
$new_rows[$total_key] = $total_values;
if( $total_key === 'payment_method' ) {
$new_rows['payment_type'] = [
'label' => __("Transaction type", $this->domain) . ':',
'value' => $options[$order->get_meta('_transaction_type')],
];
}
}
$total_rows = $new_rows;
}
return $total_rows;
}
/**
* Add content to the WC emails.
*
* @access public
* @param WC_Order $order
* @param bool $sent_to_admin
* @param bool $plain_text
*/
public function email_instructions( $order, $sent_to_admin, $plain_text = false ) {
if ( $this->instructions && ! $sent_to_admin && $this->id === $order->get_payment_method()
&& $order->has_status( $this->order_status ) ) {
echo wpautop( wptexturize( $this->instructions ) ) . PHP_EOL;
}
}
/**
* Process the payment and return the result
*
* @param int $order_id
* @return array
*/
public function process_payment( $order_id ) {
$order = wc_get_order( $order_id );
// Mark as on-hold (we're awaiting the payment)
$order->update_status( $this->order_status, $this->status_text );
// Reduce stock levels
wc_reduce_stock_levels( $order->get_id() );
// Remove cart
WC()->cart->empty_cart();
// Return thankyou redirect
return array(
'result' => 'success',
'redirect' => $this->get_return_url( $order )
);
}
}
}
代码作为插件 php 文件输入，您可以根据需要命名该文件（并可选择将其包含在文件夹中）。压缩文件（或文件夹）并通过 Wordpress 将其添加为插件。激活它。
经过测试并有效。
关于电子邮件通知：
