修复(#79): 促销管理后台API + 审查问题修复

- 实现促销管理接口：规则CRUD、优惠价配置、使用记录查询 - 修复 UpsertPrices 新增记录时提前 return 的问题 - DeleteRule/DeletePrice 不存在记录返回 code=404 - SetPromoPriceRequest.items 空数组校验 - 分页参数限制 page>0、1<=size<=200 - 下单侧促销价格按数量档总价口径计算（含 #87 修复） Co-authored-by: multica-agent <github@multica.ai>
2026-05-27 06:32:42 -07:00
parent b5e50d1ee5
commit 4366a9be8b
30 changed files with 1533 additions and 67 deletions
@@ -40,8 +40,8 @@ func calculatePurchasePrice(
 		if err != nil {
 			return nil, err
 		}
-		if promoResult != nil && promoResult.Eligible && promoResult.PromoPrice < unitPrice {
-			result.PayableBase = promoResult.PromoPrice * quantity
+		if promoResult != nil && promoResult.Eligible && promoResult.PromoPrice < originalPrice {
+			result.PayableBase = promoResult.PromoPrice
 			result.PromoRuleId = promoResult.RuleID
 			result.PromoDiscount = originalPrice - result.PayableBase
 			result.PromoPrice = promoResult.PromoPrice