```

feat(shop): 添加商品限购功能并优化购买逻辑

- 修改购买黄金商品接口，添加商品配额检查功能
- 新增月、周、日三种限购类型检查逻辑
- 当商品超出库存或达到购买限制时返回相应错误码
- 移除gold_log表中PlayerID字段的唯一索引约束
- 修复GoldService中的Cheak方法实现，支持多种时间维度限购检查
```

logic/controller/item_buy.go

@@ -95,8 +95,14 @@ func (h Controller) BuyGoldItem(data *item.C2S_GOLD_BUY_PRODUCT, player *player.
 	//product, exists := xmlres.GoldProductMap[int(data.ProductID)]
 	pro := service.NewShopService().Get(data.ProductID)
 	if pro == nil {
-		return nil, errorcode.ErrorCodes.ErrSystemError
+		return nil, errorcode.ErrorCodes.ErrTooManyProducts
 	}
+	if pro.QuotaType != 0 {
+		if player.Service.GoldLog.Cheak(data.ProductID, pro.QuotaType-1)+int(data.Count) > int(pro.QuotaLimit) {
+			return nil, errorcode.ErrorCodes.ErrExceedStock
+		}
+	}
+
 	var usegold uint64
 	var addSuccess bool
 	switch data.Type {

modules/player/model/gold_log.go

@@ -14,7 +14,7 @@ const (
 type GoldBeanConsume struct {
 	*cool.Model
 
-	PlayerID   uint64 `gorm:"not null;uniqueIndex;index:idx_pet_by_player_id;comment:'所属玩家ID'" json:"player_id"`
+	PlayerID   uint64 `gorm:"not null;index:idx_pet_by_player_id;comment:'所属玩家ID'" json:"player_id"`
 	ConsumeNum uint32 `gorm:"not null;default:0;comment:'消费数量'" json:"consume_num" description:"消费数量"`
 	BizID      uint32 `gorm:"not null;default:0;comment:'关联业务ID（如道具ID/扭蛋池ID，无则填0）'" json:"biz_id" description:"关联业务ID"`
 	///消费年份

modules/player/service/gold_log.go

@@ -10,13 +10,29 @@ type GoldService struct {
 	BaseService
 }
 
-func (s *GoldService) Cheak(pid, count uint32) {
+// 月 周 日限购检查
+func (s *GoldService) Cheak(pid, ptye uint32) int {
+
+	now := time.Now()
+	var va int
+	switch ptye {
+	case 0: //月限购
+		va = int(now.Month())
+	case 1: //周限购
+		_, va = now.ISOWeek()
+	case 2: //日限购
+		va = now.Day()
+
+	}
+	ret, _ := s.dbm_fix(s.Model).Where("year", now.Year()).Where("biz_id", pid).Wheref("consume ->> ?::integer = ?", ptye, va).Count()
+
+	return ret
 
 }
 func (s *GoldService) Log(pid, count uint32) {
-	if cool.Config.ServerInfo.IsVip != 0 {
-		return
-	}
+	// if cool.Config.ServerInfo.IsVip != 0 {
+	// 	return
+	// }
 
 	// 获取当前时间
 	now := time.Now()