调整购物车逻辑

src/main/java/com/qs/serve/modules/oms/controller/api/OmsShoppingCartApi.java

@@ -92,8 +92,24 @@ public class OmsShoppingCartApi {
     public R<?> save(@RequestBody @Valid OmsShoppingCartSaveBo param){
         BmsSupplier supplier = AuthContextUtils.getCurrentSupplier();
         OmsShoppingCart shoppingCart = CopierUtil.copy(param,new OmsShoppingCart());
-        shoppingCart.setUserId(AuthContextUtils.getSysUserId());
         GoodsSku goodsSku = goodsSkuService.getById(shoppingCart.getSkuId());
+        //用于修改sku
+        OmsShoppingCart orgShopCart = omsShoppingCartService.getOne(
+                new LambdaQueryWrapper<OmsShoppingCart>()
+                        .eq(OmsShoppingCart::getSkuCode,goodsSku.getSkuCode())
+                        .ne(param.getCartId()!=null,OmsShoppingCart::getId,param.getCartId())
+                ,false
+        );
+        if(orgShopCart!=null){
+            orgShopCart.setQuantity(orgShopCart.getQuantity()+param.getQuantity());
+            omsShoppingCartService.updateById(orgShopCart);
+            //移除多余
+            omsShoppingCartService.remove(new LambdaQueryWrapper<OmsShoppingCart>()
+                    .eq(OmsShoppingCart::getSkuCode,goodsSku.getSkuCode())
+                    .ne(OmsShoppingCart::getId,param.getCartId()));
+            return R.ok();
+        }
+        shoppingCart.setUserId(AuthContextUtils.getSysUserId());
         GoodsSpu goodsSpu = goodsSpuService.getById(goodsSku.getSpuId());
         if(!goodsSku.getEnable().equals(1)){
             return R.error("商品项["+goodsSku.getSpecInfos()+"]停用中");