更新项目部分结构，新增加DB

common/models/oldDb/ProductOrderItems.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace common\models\oldDb;
+
+use yii\behaviors\TimestampBehavior;
+use yii\db\ActiveRecord;
+
+class ProductOrderItems extends  \common\modelsgii\oldDb\ProductOrderItems
+{
+    const EVENT_CREATED  = 'orderCreated';
+    const EVENT_PAYED = 'orderPayed';
+    const EVENT_CANCELED = 'orderCanceled';
+    public function behaviors()
+    {
+        return [
+            [
+                'class' => TimestampBehavior::class,
+                'attributes' => [
+                    ActiveRecord::EVENT_BEFORE_INSERT => ['created_at', 'updated_at'],
+                    ActiveRecord::EVENT_BEFORE_UPDATE => ['updated_at'],
+                ],
+                'value' => new \yii\db\Expression('NOW()'),
+            ],
+        ];
+    }
+
+    public function getDrug(){
+        return $this->hasOne(Drug::class,['id' => 'drug_id']);
+    }
+}