实现小批量订单管理的WordPress插件开发教程

引言

在电子商务日益普及的今天，即使是小型企业和个人卖家也需要高效管理订单。虽然市面上有许多成熟的电商平台，但许多WordPress用户希望在自己的网站上直接管理小批量订单，而不依赖第三方平台。本教程将指导您开发一个简单但功能完整的小批量订单管理WordPress插件，适合处理每日几十到几百个订单的场景。

插件功能规划

在开始编码之前，我们先规划插件的基本功能：

1. 订单创建与管理 - 添加、查看、编辑和删除订单
2. 订单状态跟踪 - 待处理、处理中、已完成、已取消等状态
3. 客户信息管理 - 记录客户基本信息
4. 简单统计功能 - 显示订单数量、金额统计
5. 数据导出 - 支持导出订单数据为CSV格式

开发环境准备

确保您已准备好以下环境：

• WordPress 5.0+ 安装
• PHP 7.2+ 环境
• MySQL 5.6+ 数据库
• 代码编辑器（如VS Code、Sublime Text等）

第一步：创建插件基本结构

在WordPress的wp-content/plugins目录下创建新文件夹mini-order-manager，并创建以下文件结构：

mini-order-manager/
├── mini-order-manager.php      # 主插件文件
├── includes/
│   ├── class-database.php      # 数据库处理类
│   ├── class-orders.php        # 订单管理类
│   └── class-admin-page.php    # 后台管理页面
├── assets/
│   ├── css/
│   │   └── admin-style.css     # 后台样式
│   └── js/
│       └── admin-script.js     # 后台脚本
└── templates/                  # 模板文件（可选）

第二步：编写主插件文件

mini-order-manager.php

<?php
/**
 * Plugin Name: 小批量订单管理器
 * Plugin URI:  https://yourwebsite.com/
 * Description: 一个简单的小批量订单管理插件，适合小型电商使用
 * Version:     1.0.0
 * Author:      您的名字
 * License:     GPL v2 or later
 * Text Domain: mini-order-manager
 */

// 防止直接访问
if (!defined('ABSPATH')) {
    exit;
}

// 定义插件常量
define('MOM_PLUGIN_VERSION', '1.0.0');
define('MOM_PLUGIN_PATH', plugin_dir_path(__FILE__));
define('MOM_PLUGIN_URL', plugin_dir_url(__FILE__));

// 自动加载类文件
spl_autoload_register(function ($class_name) {
    if (strpos($class_name, 'MOM_') === 0) {
        $file = MOM_PLUGIN_PATH . 'includes/class-' . strtolower(str_replace('_', '-', $class_name)) . '.php';
        if (file_exists($file)) {
            require_once $file;
        }
    }
});

// 初始化插件
function mom_init_plugin() {
    // 实例化数据库类并创建表
    $database = new MOM_Database();
    $database->create_tables();
    
    // 实例化管理页面类
    if (is_admin()) {
        new MOM_Admin_Page();
    }
}
add_action('plugins_loaded', 'mom_init_plugin');

// 激活插件时执行的操作
function mom_activate_plugin() {
    // 创建数据库表
    $database = new MOM_Database();
    $database->create_tables();
    
    // 设置默认选项
    add_option('mom_plugin_version', MOM_PLUGIN_VERSION);
}
register_activation_hook(__FILE__, 'mom_activate_plugin');

// 停用插件时执行的操作
function mom_deactivate_plugin() {
    // 清理临时数据
    delete_option('mom_temp_data');
}
register_deactivation_hook(__FILE__, 'mom_deactivate_plugin');

第三步：创建数据库处理类

includes/class-database.php

<?php
/**
 * 数据库处理类
 * 负责创建和管理插件所需的数据库表
 */
class MOM_Database {
    
    private $charset_collate;
    
    public function __construct() {
        global $wpdb;
        $this->charset_collate = $wpdb->get_charset_collate();
    }
    
    /**
     * 创建插件所需的数据库表
     */
    public function create_tables() {
        global $wpdb;
        
        require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
        
        // 订单表
        $table_name = $wpdb->prefix . 'mom_orders';
        $sql = "CREATE TABLE IF NOT EXISTS $table_name (
            id mediumint(9) NOT NULL AUTO_INCREMENT,
            order_number varchar(50) NOT NULL,
            customer_name varchar(100) NOT NULL,
            customer_email varchar(100),
            customer_phone varchar(20),
            order_date datetime DEFAULT CURRENT_TIMESTAMP NOT NULL,
            total_amount decimal(10,2) NOT NULL DEFAULT 0.00,
            status varchar(20) DEFAULT 'pending',
            payment_method varchar(50),
            notes text,
            PRIMARY KEY (id),
            UNIQUE KEY order_number (order_number)
        ) {$this->charset_collate};";
        
        dbDelta($sql);
        
        // 订单项目表
        $table_name_items = $wpdb->prefix . 'mom_order_items';
        $sql_items = "CREATE TABLE IF NOT EXISTS $table_name_items (
            id mediumint(9) NOT NULL AUTO_INCREMENT,
            order_id mediumint(9) NOT NULL,
            product_name varchar(200) NOT NULL,
            quantity int NOT NULL DEFAULT 1,
            unit_price decimal(10,2) NOT NULL DEFAULT 0.00,
            total_price decimal(10,2) NOT NULL DEFAULT 0.00,
            PRIMARY KEY (id),
            FOREIGN KEY (order_id) REFERENCES {$wpdb->prefix}mom_orders(id) ON DELETE CASCADE
        ) {$this->charset_collate};";
        
        dbDelta($sql_items);
        
        // 创建状态表（可选，用于存储状态选项）
        $table_name_status = $wpdb->prefix . 'mom_order_status';
        $sql_status = "CREATE TABLE IF NOT EXISTS $table_name_status (
            id mediumint(9) NOT NULL AUTO_INCREMENT,
            status_key varchar(50) NOT NULL,
            status_label varchar(100) NOT NULL,
            is_default tinyint(1) DEFAULT 0,
            PRIMARY KEY (id)
        ) {$this->charset_collate};";
        
        dbDelta($sql_status);
        
        // 插入默认状态数据
        $this->insert_default_statuses();
    }
    
    /**
     * 插入默认订单状态
     */
    private function insert_default_statuses() {
        global $wpdb;
        $table_name = $wpdb->prefix . 'mom_order_status';
        
        $default_statuses = array(
            array('pending', '待处理', 1),
            array('processing', '处理中', 0),
            array('completed', '已完成', 0),
            array('cancelled', '已取消', 0),
            array('refunded', '已退款', 0)
        );
        
        foreach ($default_statuses as $status) {
            // 检查是否已存在
            $exists = $wpdb->get_var($wpdb->prepare(
                "SELECT COUNT(*) FROM $table_name WHERE status_key = %s",
                $status[0]
            ));
            
            if (!$exists) {
                $wpdb->insert(
                    $table_name,
                    array(
                        'status_key' => $status[0],
                        'status_label' => $status[1],
                        'is_default' => $status[2]
                    ),
                    array('%s', '%s', '%d')
                );
            }
        }
    }
    
    /**
     * 获取所有订单状态
     */
    public function get_order_statuses() {
        global $wpdb;
        $table_name = $wpdb->prefix . 'mom_order_status';
        
        return $wpdb->get_results("SELECT * FROM $table_name ORDER BY id");
    }
}

第四步：创建订单管理类

includes/class-orders.php

<?php
/**
 * 订单管理类
 * 处理订单的CRUD操作
 */
class MOM_Orders {
    
    private $db;
    
    public function __construct() {
        global $wpdb;
        $this->db = $wpdb;
    }
    
    /**
     * 创建新订单
     * @param array $order_data 订单数据
     * @return int|false 成功返回订单ID，失败返回false
     */
    public function create_order($order_data) {
        $table_name = $this->db->prefix . 'mom_orders';
        
        // 生成订单号
        if (empty($order_data['order_number'])) {
            $order_data['order_number'] = $this->generate_order_number();
        }
        
        // 设置默认值
        $defaults = array(
            'order_date' => current_time('mysql'),
            'status' => 'pending',
            'total_amount' => 0.00
        );
        
        $order_data = wp_parse_args($order_data, $defaults);
        
        // 插入订单数据
        $result = $this->db->insert(
            $table_name,
            $order_data,
            array(
                '%s', // order_number
                '%s', // customer_name
                '%s', // customer_email
                '%s', // customer_phone
                '%s', // order_date
                '%f', // total_amount
                '%s', // status
                '%s', // payment_method
                '%s'  // notes
            )
        );
        
        if ($result) {
            return $this->db->insert_id;
        }
        
        return false;
    }
    
    /**
     * 生成唯一订单号
     * @return string 订单号
     */
    private function generate_order_number() {
        $prefix = 'ORD';
        $date = date('Ymd');
        $random = mt_rand(1000, 9999);
        
        return $prefix . $date . $random;
    }
    
    /**
     * 获取订单列表
     * @param array $args 查询参数
     * @return array 订单列表
     */
    public function get_orders($args = array()) {
        $table_name = $this->db->prefix . 'mom_orders';
        
        $defaults = array(
            'per_page' => 20,
            'page' => 1,
            'status' => '',
            'search' => '',
            'orderby' => 'order_date',
            'order' => 'DESC'
        );
        
        $args = wp_parse_args($args, $defaults);
        
        $where = ' WHERE 1=1';
        $params = array();
        
        // 按状态筛选
        if (!empty($args['status'])) {
            $where .= " AND status = %s";
            $params[] = $args['status'];
        }
        
        // 搜索功能
        if (!empty($args['search'])) {
            $where .= " AND (customer_name LIKE %s OR order_number LIKE %s OR customer_email LIKE %s)";
            $search_term = '%' . $this->db->esc_like($args['search']) . '%';
            $params[] = $search_term;
            $params[] = $search_term;
            $params[] = $search_term;
        }
        
        // 计算偏移量
        $offset = ($args['page'] - 1) * $args['per_page'];
        
        // 构建查询
        $query = "SELECT * FROM $table_name $where";
        
        // 添加参数
        if (!empty($params)) {
            $query = $this->db->prepare($query, $params);
        }
        
        // 添加排序
        $query .= " ORDER BY {$args['orderby']} {$args['order']}";
        
        // 添加分页
        $query .= " LIMIT {$args['per_page']} OFFSET $offset";
        
        return $this->db->get_results($query);
    }
    
    /**
     * 获取单个订单详情
     * @param int $order_id 订单ID
     * @return object|null 订单对象或null
     */
    public function get_order($order_id) {
        $table_name = $this->db->prefix . 'mom_orders';
        
        return $this->db->get_row($this->db->prepare(
            "SELECT * FROM $table_name WHERE id = %d",
            $order_id
        ));
    }
    
    /**
     * 更新订单
     * @param int $order_id 订单ID
     * @param array $data 更新数据
     * @return bool 是否成功
     */
    public function update_order($order_id, $data) {
        $table_name = $this->db->prefix . 'mom_orders';
        
        return $this->db->update(
            $table_name,
            $data,
            array('id' => $order_id),
            array('%s', '%s', '%s', '%s', '%s', '%f', '%s', '%s', '%s'),
            array('%d')
        );
    }
    
    /**
     * 删除订单
     * @param int $order_id 订单ID
     * @return bool 是否成功
     */
    public function delete_order($order_id) {
        $table_name = $this->db->prefix . 'mom_orders';
        
        return $this->db->delete(
            $table_name,
            array('id' => $order_id),
            array('%d')
        );
    }
    
    /**
     * 获取订单统计
     * @return array 统计信息
     */
    public function get_order_stats() {
        $table_name = $this->db->prefix . 'mom_orders';
        
        $stats = array();
        
        // 总订单数
        $stats['total_orders'] = $this->db->get_var("SELECT COUNT(*) FROM $table_name");
        
        // 总金额
        $stats['total_revenue'] = $this->db->get_var("SELECT SUM(total_amount) FROM $table_name WHERE status NOT IN ('cancelled', 'refunded')");
        
        // 按状态统计
        $status_counts = $this->db->get_results("SELECT status, COUNT(*) as count FROM $table_name GROUP BY status");
        
        foreach ($status_counts as $status) {
            $stats['status_counts'][$status->status] = $status->count;
        }
        
        return $stats;
    }
}

第五步：创建后台管理页面

includes/class-admin-page.php

<?php
/**
 * 后台管理页面类
 * 处理插件在WordPress后台的显示和功能
 */
class MOM_Admin_Page {
    
    public function __construct() {
        // 添加管理菜单
        add_action('admin_menu', array($this, 'add_admin_menu'));
        
        // 加载脚本和样式
        add_action('admin_enqueue_scripts', array($this, 'enqueue_admin_assets'));
    }
    
    /**
     * 添加管理菜单
     */
    public function add_admin_menu() {
        // 主菜单
        add_menu_page(
            '订单管理',           // 页面标题
            '订单管理',           // 菜单标题
            'manage_options',    // 权限
            'mom-orders',        // 菜单slug
            array($this, 'display_orders_page'), // 回调函数
            'dashicons-cart',    // 图标
            30                   // 位置
        );
        
        // 子菜单：所有订单
        add_submenu_page(
            'mom-orders',
            '所有订单',
            '所有订单',
            'manage_options',
            'mom-orders',
            array($this, 'display_orders_page')
        );
        
        // 子菜单：添加新订单
        add_submenu_page(
            'mom-orders',
            '添加新订单',
            '添加新订单',
            'manage_options',
            'mom-add-order',
            array($this, 'display_add_order_page')
        );
        
        // 子菜单：统计
        add_submenu_page(
            'mom-orders',
            '订单统计',
            '统计',
            'manage_options',
            'mom-statistics',
            array($this, 'display_statistics_page')
        );
    }
    
    /**
     * 加载后台资源
     */
    public function enqueue_admin_assets($hook) {
        // 只在插件页面加载
        if (strpos($hook, 'mom-') === false) {
            return;
        }
        
        // 加载CSS
        wp_enqueue_style(
            'mom-admin-style',
            MOM_PLUGIN_URL . 'assets/css/admin-style.css',
            array(),
            MOM_PLUGIN_VERSION
        );
        
        // 加载JS
        wp_enqueue_script(
            'mom-admin-script',
            MOM_PLUGIN_URL . 'assets/js/admin-script.js',
            array('jquery'),
            MOM_PLUGIN_VERSION,
            true
        );
        
        // 本地化脚本，传递数据到JS
        wp_localize_script('mom-admin-script', 'mom_ajax', array(
            'ajax_url' => admin_url('admin-ajax.php'),
            'nonce' => wp_create_nonce('mom_ajax_nonce')
        ));
    }
    
    /**
     * 显示订单列表页面
     */
    public function display_orders_page() {
        // 实例化订单类
        $orders_manager = new MOM_Orders();
        
        // 获取当前页和状态筛选
        $current_page = isset($_GET['paged']) ? max(1, intval($_GET['paged'])) : 1;
        $status_filter = isset($_GET['status']) ? sanitize_text_field($_GET['status']) : '';
        $search_term = isset($_GET['s']) ? sanitize_text_field($_GET['s']) : '';
        
        // 获取订单数据
        $args = array(
            'per_page' => 20,
            'page' => $current_page,
            'status' => $status_filter,

search_term

    );
    
    $orders = $orders_manager->get_orders($args);
    $total_orders = $orders_manager->get_order_stats()['total_orders'];
    $total_pages = ceil($total_orders / $args['per_page']);
    
    // 获取所有状态
    $database = new MOM_Database();
    $statuses = $database->get_order_statuses();
    ?>
    
    <div class="wrap mom-admin-wrap">
        <h1 class="wp-heading-inline">订单管理</h1>
        <a href="<?php echo admin_url('admin.php?page=mom-add-order'); ?>" class="page-title-action">添加新订单</a>
        
        <!-- 搜索和筛选表单 -->
        <div class="mom-filters">
            <form method="get" action="<?php echo admin_url('admin.php'); ?>">
                <input type="hidden" name="page" value="mom-orders">
                
                <div class="search-box">
                    <input type="search" name="s" value="<?php echo esc_attr($search_term); ?>" placeholder="搜索订单号、客户姓名或邮箱">
                    <input type="submit" class="button" value="搜索">
                </div>
                
                <div class="status-filter">
                    <select name="status" onchange="this.form.submit()">
                        <option value="">所有状态</option>
                        <?php foreach ($statuses as $status): ?>
                            <option value="<?php echo esc_attr($status->status_key); ?>" 
                                <?php selected($status_filter, $status->status_key); ?>>
                                <?php echo esc_html($status->status_label); ?>
                            </option>
                        <?php endforeach; ?>
                    </select>
                </div>
            </form>
        </div>
        
        <!-- 订单列表表格 -->
        <table class="wp-list-table widefat fixed striped">
            <thead>
                <tr>
                    <th>订单号</th>
                    <th>客户姓名</th>
                    <th>订单日期</th>
                    <th>金额</th>
                    <th>状态</th>
                    <th>操作</th>
                </tr>
            </thead>
            <tbody>
                <?php if (empty($orders)): ?>
                    <tr>
                        <td colspan="6" style="text-align: center;">暂无订单</td>
                    </tr>
                <?php else: ?>
                    <?php foreach ($orders as $order): ?>
                        <tr>
                            <td><?php echo esc_html($order->order_number); ?></td>
                            <td><?php echo esc_html($order->customer_name); ?></td>
                            <td><?php echo date('Y-m-d H:i', strtotime($order->order_date)); ?></td>
                            <td><?php echo number_format($order->total_amount, 2); ?>元</td>
                            <td>
                                <span class="order-status status-<?php echo esc_attr($order->status); ?>">
                                    <?php 
                                    $status_label = '';
                                    foreach ($statuses as $status) {
                                        if ($status->status_key == $order->status) {
                                            $status_label = $status->status_label;
                                            break;
                                        }
                                    }
                                    echo esc_html($status_label);
                                    ?>
                                </span>
                            </td>
                            <td>
                                <a href="<?php echo admin_url('admin.php?page=mom-add-order&order_id=' . $order->id); ?>" class="button button-small">编辑</a>
                                <a href="#" class="button button-small button-delete" data-order-id="<?php echo $order->id; ?>">删除</a>
                            </td>
                        </tr>
                    <?php endforeach; ?>
                <?php endif; ?>
            </tbody>
        </table>
        
        <!-- 分页 -->
        <?php if ($total_pages > 1): ?>
            <div class="tablenav bottom">
                <div class="tablenav-pages">
                    <span class="displaying-num">共 <?php echo $total_orders; ?> 个订单</span>
                    <span class="pagination-links">
                        <?php
                        $base_url = admin_url('admin.php?page=mom-orders');
                        if ($status_filter) $base_url .= '&status=' . $status_filter;
                        if ($search_term) $base_url .= '&s=' . urlencode($search_term);
                        
                        if ($current_page > 1) {
                            echo '<a class="first-page button" href="' . $base_url . '&paged=1">«</a>';
                            echo '<a class="prev-page button" href="' . $base_url . '&paged=' . ($current_page - 1) . '">‹</a>';
                        }
                        
                        echo '<span class="paging-input">';
                        echo '<input class="current-page" type="text" size="2" value="' . $current_page . '" name="paged">';
                        echo ' 页，共 <span class="total-pages">' . $total_pages . '</span> 页';
                        echo '</span>';
                        
                        if ($current_page < $total_pages) {
                            echo '<a class="next-page button" href="' . $base_url . '&paged=' . ($current_page + 1) . '">›</a>';
                            echo '<a class="last-page button" href="' . $base_url . '&paged=' . $total_pages . '">»</a>';
                        }
                        ?>
                    </span>
                </div>
            </div>
        <?php endif; ?>
    </div>
    <?php
}

/**
 * 显示添加/编辑订单页面
 */
public function display_add_order_page() {
    $orders_manager = new MOM_Orders();
    $database = new MOM_Database();
    $statuses = $database->get_order_statuses();
    
    $order_id = isset($_GET['order_id']) ? intval($_GET['order_id']) : 0;
    $order = $order_id ? $orders_manager->get_order($order_id) : null;
    
    // 处理表单提交
    if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['mom_save_order'])) {
        $this->save_order($order_id);
        $order_id = isset($_POST['order_id']) ? intval($_POST['order_id']) : 0;
        $order = $order_id ? $orders_manager->get_order($order_id) : null;
    }
    ?>
    
    <div class="wrap">
        <h1><?php echo $order ? '编辑订单' : '添加新订单'; ?></h1>
        
        <form method="post" action="">
            <?php wp_nonce_field('mom_save_order', 'mom_order_nonce'); ?>
            <input type="hidden" name="order_id" value="<?php echo $order ? $order->id : 0; ?>">
            
            <div class="mom-form-container">
                <div class="mom-form-section">
                    <h2>订单信息</h2>
                    
                    <table class="form-table">
                        <tr>
                            <th><label for="order_number">订单号</label></th>
                            <td>
                                <input type="text" id="order_number" name="order_number" 
                                       value="<?php echo $order ? esc_attr($order->order_number) : ''; ?>"
                                       class="regular-text" required>
                                <p class="description">系统将自动生成订单号，如需自定义可修改</p>
                            </td>
                        </tr>
                        <tr>
                            <th><label for="order_date">订单日期</label></th>
                            <td>
                                <input type="datetime-local" id="order_date" name="order_date" 
                                       value="<?php echo $order ? date('Y-m-dTH:i', strtotime($order->order_date)) : date('Y-m-dTH:i'); ?>"
                                       class="regular-text" required>
                            </td>
                        </tr>
                        <tr>
                            <th><label for="status">订单状态</label></th>
                            <td>
                                <select id="status" name="status" class="regular-text">
                                    <?php foreach ($statuses as $status): ?>
                                        <option value="<?php echo esc_attr($status->status_key); ?>"
                                            <?php echo ($order && $order->status == $status->status_key) ? 'selected' : ''; ?>>
                                            <?php echo esc_html($status->status_label); ?>
                                        </option>
                                    <?php endforeach; ?>
                                </select>
                            </td>
                        </tr>
                    </table>
                </div>
                
                <div class="mom-form-section">
                    <h2>客户信息</h2>
                    
                    <table class="form-table">
                        <tr>
                            <th><label for="customer_name">客户姓名</label></th>
                            <td>
                                <input type="text" id="customer_name" name="customer_name" 
                                       value="<?php echo $order ? esc_attr($order->customer_name) : ''; ?>"
                                       class="regular-text" required>
                            </td>
                        </tr>
                        <tr>
                            <th><label for="customer_email">客户邮箱</label></th>
                            <td>
                                <input type="email" id="customer_email" name="customer_email" 
                                       value="<?php echo $order ? esc_attr($order->customer_email) : ''; ?>"
                                       class="regular-text">
                            </td>
                        </tr>
                        <tr>
                            <th><label for="customer_phone">客户电话</label></th>
                            <td>
                                <input type="tel" id="customer_phone" name="customer_phone" 
                                       value="<?php echo $order ? esc_attr($order->customer_phone) : ''; ?>"
                                       class="regular-text">
                            </td>
                        </tr>
                    </table>
                </div>
                
                <div class="mom-form-section">
                    <h2>订单详情</h2>
                    
                    <table class="form-table">
                        <tr>
                            <th><label for="total_amount">订单总额</label></th>
                            <td>
                                <input type="number" id="total_amount" name="total_amount" 
                                       value="<?php echo $order ? esc_attr($order->total_amount) : '0.00'; ?>"
                                       step="0.01" min="0" class="small-text" required> 元
                            </td>
                        </tr>
                        <tr>
                            <th><label for="payment_method">支付方式</label></th>
                            <td>
                                <select id="payment_method" name="payment_method" class="regular-text">
                                    <option value="">请选择支付方式</option>
                                    <option value="alipay" <?php echo ($order && $order->payment_method == 'alipay') ? 'selected' : ''; ?>>支付宝</option>
                                    <option value="wechat" <?php echo ($order && $order->payment_method == 'wechat') ? 'selected' : ''; ?>>微信支付</option>
                                    <option value="bank" <?php echo ($order && $order->payment_method == 'bank') ? 'selected' : ''; ?>>银行转账</option>
                                    <option value="cash" <?php echo ($order && $order->payment_method == 'cash') ? 'selected' : ''; ?>>现金</option>
                                </select>
                            </td>
                        </tr>
                        <tr>
                            <th><label for="notes">备注</label></th>
                            <td>
                                <textarea id="notes" name="notes" rows="4" class="large-text"><?php echo $order ? esc_textarea($order->notes) : ''; ?></textarea>
                            </td>
                        </tr>
                    </table>
                </div>
                
                <div class="submit">
                    <input type="submit" name="mom_save_order" class="button button-primary" value="保存订单">
                    <a href="<?php echo admin_url('admin.php?page=mom-orders'); ?>" class="button">返回订单列表</a>
                </div>
            </div>
        </form>
    </div>
    <?php
}

/**
 * 保存订单
 */
private function save_order($order_id) {
    // 验证nonce
    if (!isset($_POST['mom_order_nonce']) || !wp_verify_nonce($_POST['mom_order_nonce'], 'mom_save_order')) {
        wp_die('安全验证失败');
    }
    
    // 验证权限
    if (!current_user_can('manage_options')) {
        wp_die('权限不足');
    }
    
    // 准备订单数据
    $order_data = array(
        'order_number' => sanitize_text_field($_POST['order_number']),
        'customer_name' => sanitize_text_field($_POST['customer_name']),
        'customer_email' => sanitize_email($_POST['customer_email']),
        'customer_phone' => sanitize_text_field($_POST['customer_phone']),
        'order_date' => sanitize_text_field($_POST['order_date']),
        'total_amount' => floatval($_POST['total_amount']),
        'status' => sanitize_text_field($_POST['status']),
        'payment_method' => sanitize_text_field($_POST['payment_method']),
        'notes' => sanitize_textarea_field($_POST['notes'])
    );
    
    $orders_manager = new MOM_Orders();
    
    if ($order_id) {
        // 更新订单
        $result = $orders_manager->update_order($order_id, $order_data);
        if ($result) {
            add_action('admin_notices', function() {
                echo '<div class="notice notice-success is-dismissible"><p>订单更新成功！</p></div>';
            });
        }
    } else {
        // 创建新订单
        $new_order_id = $orders_manager->create_order($order_data);
        if ($new_order_id) {
            add_action('admin_notices', function() {
                echo '<div class="notice notice-success is-dismissible"><p>订单创建成功！</p></div>';
            });
        }
    }
}

/**
 * 显示统计页面
 */
public function display_statistics_page() {
    $orders_manager = new MOM_Orders();
    $stats = $orders_manager->get_order_stats();
    
    // 获取最近30天的订单数据
    global $wpdb;
    $table_name = $wpdb->prefix . 'mom_orders';
    $thirty_days_ago = date('Y-m-d', strtotime('-30 days'));
    
    $daily_stats = $wpdb->get_results($wpdb->prepare(
        "SELECT DATE(order_date) as date, COUNT(*) as count, SUM(total_amount) as revenue 
         FROM $table_name 
         WHERE order_date >= %s 
         GROUP BY DATE(order_date) 
         ORDER BY date DESC",
        $thirty_days_ago
    ));
    ?>
    
    <div class="wrap">
        <h1>订单统计</h1>
        
        <div class="mom-stats-container">
            <div class="mom-stats-overview">
                <div class="stat-box">
                    <h3>总订单数</h3>
                    <div class="stat-number"><?php echo esc_html($stats['total_orders']); ?></div>
                </div>
                <div class="stat-box">
                    <h3>总销售额</h3>
                    <div class="stat-number"><?php echo number_format($stats['total_revenue'], 2); ?>元</div>
                </div>
                <div class="stat-box">
                    <h3>平均订单额</h3>
                    <div class="stat-number">
                        <?php 
                        $avg = $stats['total_orders'] > 0 ? $stats['total_revenue'] / $stats['total_orders'] : 0;
                        echo number_format($avg, 2); ?>元
                    </div>
                </div>
            </div>
            
            <div class="mom-stats-details">
                <h2>订单状态分布</h2>
                <table class="wp-list-table widefat fixed">
                    <thead>
                        <tr>
                            <th>状态</th>
                            <th>订单数</th>
                            <th>占比</th>
                        </tr>
                    </thead>
                    <tbody>
                        <?php 
                        $total_orders = $stats['total_orders'];
                        if (isset($stats['status_counts'])) {
                            foreach ($stats['status_counts'] as $status => $count) {
                                $percentage = $total_orders > 0 ? ($count / $total_orders * 100) : 0;
                                ?>
                                <tr>
                                    <td><?php echo esc_html($status); ?></td>
                                    <td><?php echo esc_html($count); ?></td>
                                    <td><?php echo number_format($percentage, 1); ?>%</td>
                                </tr>
                                <?php
                            }
                        }
                        ?>
                    </tbody>
                </table>
            </div>
            
            <div class="mom-stats-chart">
                <h2>最近30天订单趋势</h2>
                <table class="wp-list-table widefat fixed">
                    <thead>
                        <tr>
                            <th>日期</th>
                            <th>订单数</th>
                            <th>销售额</th>
                        </tr>
                    </thead>
                    <tbody>
                        <?php if (empty($daily_stats)): ?>
                            <tr>
                                <td colspan="3" style="text-align: center;">暂无数据</td>
                            </tr>
                        <?php else: ?>
                            <?php foreach ($daily_stats as $daily): ?>
                                <tr>
                                    <td><?php echo esc_html($daily->date); ?></td>
                                    <td><?php echo esc_html($daily->count); ?></td>
                                    <td><?php echo number_format($daily->revenue, 2); ?>元</td>
                                </tr>
                            <?php endforeach; ?>
                        <?php endif; ?>
                    </tbody>
                </table>
            </div>
            
            <div class="mom-export-section">
                <h2>数据导出</h2>
                <p>导出订单数据为CSV格式：</p>
                <form method="post" action="<?php echo admin_url('admin-post.php'); ?>">
                    <input type="hidden" name="action" value="mom_export_orders">
                    <?php wp_nonce_field('mom_export_nonce'); ?>
                    
                    <label