PHP 재고 관리 시스템의 재고 조정 기록 기능을 위한 코드 생성

class InventoryAdjustment
{
    private $id;
    private $product_id;
    private $quantity;
    private $adjustment_type;
    private $adjustment_date;

    // 构造函数
    public function __construct($id, $product_id, $quantity, $adjustment_type, $adjustment_date)
    {
        $this->id = $id;
        $this->product_id = $product_id;
        $this->quantity = $quantity;
        $this->adjustment_type = $adjustment_type;
        $this->adjustment_date = $adjustment_date;
    }

    // 获取调整记录ID
    public function getId()
    {
        return $this->id;
    }

    // 获取商品ID
    public function getProductId()
    {
        return $this->product_id;
    }

    // 获取调整数量
    public function getQuantity()
    {
        return $this->quantity;
    }

    // 获取调整类型
    public function getAdjustmentType()
    {
        return $this->adjustment_type;
    }

    // 获取调整日期
    public function getAdjustmentDate()
    {
        return $this->adjustment_date;
    }
}

class InventoryAdjustmentManager
{
    private $adjustments;

    // 构造函数
    public function __construct()
    {
        $this->adjustments = [];
    }

    // 添加库存调整记录
    public function addAdjustment(InventoryAdjustment $adjustment)
    {
        $this->adjustments[] = $adjustment;
    }

    // 获取库存调整记录列表
    public function getAdjustmentList()
    {
        return $this->adjustments;
    }

    // 根据ID获取库存调整记录
    public function getAdjustmentById($id)
    {
        foreach ($this->adjustments as $adjustment) {
            if ($adjustment->getId() == $id) {
                return $adjustment;
            }
        }
        return null;
    }
}

// 创建库存调整管理器
$adjustmentManager = new InventoryAdjustmentManager();

// 创建调整记录
$adjustment1 = new InventoryAdjustment(1, 1, 10, '入库', '2021-01-01');
$adjustment2 = new InventoryAdjustment(2, 2, -5, '出库', '2021-01-02');

// 添加调整记录到管理器
$adjustmentManager->addAdjustment($adjustment1);
$adjustmentManager->addAdjustment($adjustment2);

// 获取所有调整记录
$adjustmentList = $adjustmentManager->getAdjustmentList();
foreach ($adjustmentList as $adjustment) {
    echo '调整记录ID：' . $adjustment->getId() . '<br>';
    echo '商品ID：' . $adjustment->getProductId() . '<br>';
    echo '调整数量：' . $adjustment->getQuantity() . '<br>';
    echo '调整类型：' . $adjustment->getAdjustmentType() . '<br>';
    echo '调整日期：' . $adjustment->getAdjustmentDate() . '<br>';
    echo '<hr>';
}

// 根据ID获取调整记录
$adjustmentId = 1;
$adjustment = $adjustmentManager->getAdjustmentById($adjustmentId);
if ($adjustment) {
    echo '调整记录ID：' . $adjustment->getId() . '<br>';
    echo '商品ID：' . $adjustment->getProductId() . '<br>';
    echo '调整数量：' . $adjustment->getQuantity() . '<br>';
    echo '调整类型：' . $adjustment->getAdjustmentType() . '<br>';
    echo '调整日期：' . $adjustment->getAdjustmentDate() . '<br>';
} else {
    echo '未找到ID为' . $adjustmentId . '的调整记录';
}