创建订单后增加商品销量

app/Models/Order.php

@@ -173,6 +173,14 @@ class Order extends Model
         return $this->morphMany(PayLog::class, 'payable');
     }
 
+    /**
+     * 属于此订单的售后单
+     */
+    public function afterSales()
+    {
+        return $this->hasMany(AfterSale::class, 'order_id');
+    }
+
     /**
      * 此订单是否待付款
      *
@@ -253,14 +261,6 @@ class Order extends Model
      */
     public function markAsCompleted()
     {
-        // 加载订单商品
-        $this->loadMissing('products');
-
-        foreach ($this->products->loadMissing(['spu', 'sku']) as $product) {
-            $product->spu?->increment('sales', $product->quantity);
-            $product->sku?->increment('sales', $product->quantity);
-        }
-
         $this->update([
             'status' => static::STATUS_COMPLETED,
             'completed_at' => now(),

app/Services/OrderService.php

@@ -302,9 +302,12 @@ class OrderService
     {
         // 扣商品库存
         $sku->update([
+            'sales' => DB::Raw("sales + {$qty}"),
             'stock' => DB::raw("stock - {$qty}"),   // 库存
         ]);
 
+        $sku->spu?->increment('sales', $qty);
+
         // 如果是因为赠品库存不足引起的异常，则需重试
         do {
             try {
@@ -705,7 +708,7 @@ class OrderService
             throw new BizException('购物车商品已丢失');
         }
 
-        $shoppingCartItems->load('sku');
+        $shoppingCartItems->load('sku.spu');
 
         $lostShoppingCartItems = $shoppingCartItems->filter(function ($item) {
             return $item->sku === null;