first commit

server/app/common/model/ExpressStateLog.php

@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+namespace app\common\model;
+
+/**
+ * 物流状态变更记录模型
+ */
+class ExpressStateLog extends BaseModel
+{
+    protected $name = 'express_state_log';
+
+    // 表只有 create_time、无 update_time；config/database.php 全局 auto_timestamp=true，需显式关闭避免 Unknown column 'update_time'
+    protected $autoWriteTimestamp = false;
+
+    /**
+     * 关联主表
+     */
+    public function tracking()
+    {
+        return $this->belongsTo(ExpressTracking::class, 'tracking_id', 'id');
+    }
+}