1、查询用户信息接口增加字段：member_discount_flag，用来让前端判断该用户能否享受会员优惠；

app/admin/models/user.go

@@ -116,6 +116,7 @@ type UserInfo struct {
 	Store                 *Store      `json:"store" gorm:"-"`                                   //
 	OrderCards            []OrderCard `json:"order_cards" gorm:"foreignKey:uid;references:uid"` //
 	ForfeitPenalty        int         `json:"forfeit_penalty" gorm:"-"`                         // 滞纳金
+	MemberDiscountFlag    int         `json:"member_discount_flag" gorm:"-"`                    // 会员优惠标志：0-不享受会员优惠，1-可享受会员优惠
 	//RenewalTime           *time.Time  `json:"renewal_time"`                                     //
 	//RenewalMemberLevel    uint32      `json:"renewal_member_level"`                             //
 	//MemberLevelString     string      `json:"member_level_string" gorm:"-"`                     // 会员类型
@@ -532,6 +533,13 @@ func GetNewUserList(req *NewUserListReq, c *gin.Context) (*NewUserListResp, erro
 		validateZeroTime(&users[i].FirstRetailOrder)
 	}
 
+	if req.Uid != 0 && len(users) == 1 { // 只有单个查询用户uid时，才判断是否能够享受会员优惠 add:2024-10-25
+		memberDiscountFlag := canEnjoyMemberDiscount(req.Uid)
+		if memberDiscountFlag {
+			users[0].MemberDiscountFlag = 1
+		}
+	}
+
 	if req.IsExport == 1 {
 		exportFile, err := newUserListExport(users, c)
 		if err != nil {
@@ -546,6 +554,40 @@ func GetNewUserList(req *NewUserListReq, c *gin.Context) (*NewUserListResp, erro
 	return resp, nil
 }
 
+func canEnjoyMemberDiscount(uid int) bool {
+	// 查询user表
+	userInfo := new(UserInfo)
+	err := orm.Eloquent.Table("user").Where("uid = ?", uid).Find(userInfo).Error
+	if err != nil {
+		logger.Error("查询 user 表时出错:", logger.Field("err", err))
+		return false
+	}
+
+	// 检查user表的member_level是否在黄金会员、短期会员、白金会员、黑金会员之间
+	if userInfo.MemberLevel == MemberLevelGold ||
+		userInfo.MemberLevel == MemberLevelPeriod ||
+		userInfo.MemberLevel == MemberLevelPlatinum ||
+		userInfo.MemberLevel == MemberLevelBlackGold {
+		return true
+	}
+
+	// 查询privilege_member表
+	privilegeInfo := new(PrivilegeMember)
+	err = orm.Eloquent.Table("privilege_member").Where("uid = ?", uid).Find(privilegeInfo).Error
+	if err != nil {
+		logger.Error("查询 privilege_member 表时出错:", logger.Field("err", err))
+		return false
+	}
+
+	// 检查privilege_member表的member_level是否为6
+	if privilegeInfo.MemberLevel == MemberLevelPrivilege {
+		return true
+	}
+
+	// 如果不满足条件，则返回false
+	return false
+}
+
 // GetUserListByForfeitPenalty 滞纳金排序
 func GetUserListByForfeitPenalty(req *NewUserListReq) (*NewUserListResp, error) {
 	resp := &NewUserListResp{