fix(订单服务): 修复产品分类可能为空的错误并优化产品查询

修复订单服务中产品分类可能为空导致的错误，改为可选链操作
优化产品服务中组件查询逻辑，使用sku查询并添加关联关系
移除产品服务中不必要的组件查询逻辑

src/service/order.service.ts

@@ -740,6 +740,7 @@ export class OrderService {
 
     const orderSales: OrderSale[] = componentDetails.map(({product, parentProduct, quantity}) => {
       if (!product) return null
+      console.log('product',product)
       const attrsObj = this.productService.getAttributesObject(product.attributes)
       const orderSale = plainToClass(OrderSale, {
         orderId: orderItem.orderId,
@@ -758,7 +759,7 @@ export class OrderService {
         flavor: attrsObj?.['flavor']?.name,
         humidity: attrsObj?.['humidity']?.name,
         size: attrsObj?.['size']?.name,
-        category: product.category.name,
+        category: product.category?.name,
       });
       return orderSale
     }).filter(v => v !== null)

src/service/product.service.ts

@@ -1786,7 +1786,7 @@ export class ProductService {
     }
   }
   // 获取库存单品列表
-  async getComponentDetailFromSiteSku(siteProduct: { sku: string, name: string }, site: Site): Promise<{ product: Product,parentProduct?: Product, quantity: number }[]>  {
+  async getComponentDetailFromSiteSku(siteProduct: { sku: string, name?: string }, site: Site): Promise<{ product: Product,parentProduct?: Product, quantity: number }[]>  {
     if (!siteProduct.sku) {
       throw new Error('siteSku 不能为空')
     }
@@ -1805,7 +1805,8 @@ export class ProductService {
     return await Promise.all(product.components.map(async comp => {
       return {
         product: await this.productModel.findOne({
-          where: { id: comp.productId },
+          where: { sku: comp.sku },
+          relations: ['category', 'attributes', 'attributes.dict', 'components']
         }),
         parentProduct: product, // 这里得记录一下他的爸爸用来记录
         quantity: comp.quantity,
@@ -2133,11 +2134,6 @@ export class ProductService {
       component.sku = product.sku;
       component.quantity = 1;
       product.components = [component];
-    } else {
-      // 混装商品返回持久化的 SKU 组成
-      product.components = await this.productStockComponentModel.find({
-        where: { productId: product.id },
-      });
     }
 
     return product;