func (h *Handler) HandleCancel(req interface{}) (interface{}, error) {
//找到相应的订单，不存在则返回失败
var (
cancelReq *CancelReq
cancelResp = &CancelResp{}
err error
ok bool
)
if cancelReq, ok = req.(*CancelReq); ok != true {
return nil, fmt.Errorf("类型有误 ")
}
tx := h.db.Begin()
defer func() {
if h.db.GetErrors() != nil {
log.Printf("DB error! now roll back. Err is %v", h.db.GetErrors())
tx.Rollback()
} else {
tx.Commit()
}
}()
var existOrder order.Order
cancelResp.Result = false
cancelResp.OrderId = cancelReq.OrderId
if h.db.Where("orderId = ? and stockCode = ?", cancelReq.OrderId, cancelReq.Symbol).First(&existOrder).RecordNotFound() {
return nil, fmt.Errorf("找不到相应的记录 %v", err)
}
existOrder.State = order.ORDER_CANCELLED
if err := h.db.Save(&existOrder).Error; err != nil {
return nil, fmt.Errorf("更新失败 %v", err)
}
cancelResp.Result = true
return cancelResp, err
}
