增加关联关系

app/common/model/VehMoneyValue.php

@@ -59,4 +59,29 @@ class VehMoneyValue extends Model
         if ($this->exchange_rate === null) return null;
         return (string) bcmul((string)$this->amount, (string)$this->exchange_rate, $scale);
     }
+
+
+    /**
+     * 关联订单
+     */
+    public function order()
+    {
+        return $this->belongsTo(StockOrders::class, 'object_id', 'id');
+    }
+
+    /**
+     * 关联订单项（一个货币价值记录可能关联到订单项）
+     */
+    public function orderItem()
+    {
+        return $this->belongsTo(StockOrderItems::class, 'object_id', 'id');
+    }
+
+    /**
+     * 限定查询特定对象类型的货币价值记录
+     */
+    public function scopeOfScene($query, $scene)
+    {
+        return $query->where('object_scene', $scene);
+    }
 }