PHPで開発した中古リサイクルサイトが物流情報追跡機能を最適化

CREATE TABLE `goods` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  `logistics_tracking_number` varchar(30) DEFAULT NULL,
  `shipping_status` tinyint(1) DEFAULT NULL,
  `shipping_location` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

CREATE TABLE `logistics` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `goods_id` int(11) NOT NULL,
  `status` tinyint(1) DEFAULT NULL,
  `location` varchar(255) DEFAULT NULL,
  `timestamp` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  KEY `fk_goods_id` (`goods_id`),
  CONSTRAINT `fk_goods_id` FOREIGN KEY (`goods_id`) REFERENCES `goods` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

function generateTrackingNumber() {
  // 生成一个唯一的物流追踪号，这里我们使用时间戳和随机数相结合
  $trackingNumber = time() . mt_rand(100, 999);
  
  // 将生成的物流追踪号与商品绑定
  $goodsID = $_POST['goods_id']; // 假设表单中有一个名为goods_id的字段
  
  // 将物流追踪号存入数据库
  $sql = "UPDATE goods SET logistics_tracking_number = '{$trackingNumber}' WHERE id = '{$goodsID}'";
  // 执行SQL语句
  // ...
}

function updateShippingStatus() {
  $trackingNumber = $_POST['tracking_number']; // 假设表单中有一个名为tracking_number的字段
  $status = $_POST['status']; // 假设表单中有一个名为status的字段
  $location = $_POST['location']; // 假设表单中有一个名为location的字段
  
  // 根据物流追踪号查询商品ID
  $sql = "SELECT id FROM goods WHERE logistics_tracking_number = '{$trackingNumber}'";
  // 执行SQL语句，并获取查询结果
  // ...
  
  // 将商品的运输信息存入数据库
  $sql = "INSERT INTO logistics (goods_id, status, location) VALUES ('{$goodsID}', '{$status}', '{$location}')";
  // 执行SQL语句
  // ...
}

function getShippingStatus() {
  $trackingNumber = $_POST['tracking_number']; // 假设表单中有一个名为tracking_number的字段
  
  // 根据物流追踪号查询商品的运输状态和位置
  $sql = "SELECT status, location FROM logistics WHERE goods_id IN (SELECT id FROM goods WHERE logistics_tracking_number = '{$trackingNumber}')";
  // 执行SQL语句，并获取查询结果
  // ...
}