fix bug

models/models.go

@@ -35,6 +35,7 @@ type CollectorOrder struct {
 	TradedPrice  float64        `json:"traded_price" gorm:"type:decimal(10,4);not null;default:0;column:traded_price;comment:成交均价"`
 	TradedVolume int            `json:"traded_volume" gorm:"not null;default:0;column:traded_volume;comment:成交数量"`
 	OrderStatus  int            `json:"order_status" gorm:"not null;default:0;column:order_status;comment:订单状态"`
+	OffsetFlag   int            `json:"offset_flag" gorm:"not null;default:0;column:offset_flag;comment:开平标志"`
 	OrderTime    int64          `json:"order_time" gorm:"not null;column:order_time;comment:下单时间戳"`
 	OrderRemark  string         `json:"order_remark" gorm:"type:text;column:order_remark;comment:订单备注"`
 	DataHash     string         `json:"data_hash" gorm:"type:varchar(64);not null;comment:数据哈希值（用于变化检测）"`