async def sellStock(self, user_id: str, stock_name: str, stock_amount: int, stock_price: float) -> str:
if self.outTime():
return "不在交易时间内"
dbo = DataBaseOperator()
stock_amount_obj = dbo.searchOneWithTwoFields(UserHoldings, UserHoldings.stock_name, stock_name,
UserHoldings.user_id, user_id)
if not stock_amount_obj:
return "卖出订单创建失败，您没有购买该支股票"
else:
now = datetime.now().strftime('%Y-%m-%d')
bought_time = stock_amount_obj.bought_time.strftime('%Y-%m-%d')
if now == bought_time:
return "卖出订单创建失败，您必须在购买成功后的T+1日才能卖出"
if stock_amount > stock_amount_obj.stock_amount:
return "卖出订单创建失败，您没有足够的持仓，当前持仓为：" + str(stock_amount_obj.stock_amount)
else:
aoi = dbo.searchAll(AliveOrder)
if aoi:
alive_order_index = aoi[-1].alive_order_index + 1
else:
alive_order_index = 1
stock_id = dbo.searchOne(StockInformation, StockInformation.stock_name, stock_name).stock_id
alive_order = AliveOrder(user_id=user_id, alive_order_index=alive_order_index,
alive_order_time=datetime.now(),
buy_or_sell=False, stock_id=stock_id,
stock_name=stock_name, stock_price=stock_price,
stock_amount=stock_amount,
order_money_amount=stock_amount * stock_price)
dbo.add(alive_order)
flushAliveOrders()
return "卖出订单创建成功\n股票：{}\n股数：{}\n预定价格：{}\n总价格：{}\n".format(stock_name, str(stock_amount),
str(stock_price),
str(stock_amount * stock_price))
async def cancelOrder(self, user_id: str, alive_order_index: int) -> str:
dbo = DataBaseOperator()
obj = dbo.searchOneWithTwoFields(AliveOrder, AliveOrder.user_id, user_id, AliveOrder.alive_order_index,
alive_order_index)
if not obj:
return "您要删除的订单不存在"
else:
dbo.deleteWithTwoFields(AliveOrder, AliveOrder.user_id, user_id, AliveOrder.alive_order_index,
alive_order_index)
return "订单{}删除成功".format(obj.alive_order_index)
def flushAliveOrders():
dbo = DataBaseOperator()
dbo.delete(AliveOrder, AliveOrder.is_alive, False)
dbo.delete(UserHoldings, UserHoldings.stock_amount, 0)
order_list = dbo.searchAll(AliveOrder)
for order in order_list:
# True是买入
if order.buy_or_sell:
stock = dbo.searchOne(StockInformation, StockInformation.stock_id,
order.stock_id)
print(stock.now_price, order.stock_price, stock.stock_name)
if stock.now_price <= order.stock_price:
# 买入
user = dbo.searchOne(UserInformation, UserInformation.user_id,
order.user_id)
service_charge = order.order_money_amount * 0.0003
if service_charge < 5:
service_charge = 5
order.order_money_amount = order.stock_amount * stock.now_price
if order.order_money_amount <= user.free_money_amount + service_charge:
user.free_money_amount -= (order.order_money_amount +
service_charge)
order.is_alive = False
holdings = dbo.searchOneWithTwoFields(
UserHoldings, UserHoldings.user_id, order.user_id,
UserHoldings.stock_name, order.stock_name)
if holdings:
holdings.stock_amount += order.stock_amount
holdings.bought_price = order.stock_price
holdings.bought_total_price += order.order_money_amount
else:
holdings = UserHoldings(order.user_id,
order.stock_name,
order.stock_amount,
stock.stock_price,
order.order_money_amount,
datetime.now())
dbo.add(holdings)
dbo.update()
else:
continue
# 卖出订单：
# 查询表UserInformation的now_price，如果价格低于order的价格，continue
# 否则，查询user_holdings的stock_amount字段，比较order的amount和holdings的amount，如果order的大，continue。
# 否则，user的free_money_amount字段+=order的money_amount字段-手续费。holdings-=amount，order的is_alive设为false
else:
stock = dbo.searchOne(StockInformation, StockInformation.stock_id,
order.stock_id)
if stock.now_price > order.stock_price:
holdings = dbo.searchOne(UserHoldings, UserHoldings.user_id,
order.user_id)
if holdings.stock_amount >= order.stock_amount:
service_charge = order.stock_amount * stock.now_price * 0.0013
if service_charge < 5:
service_charge = 5
user = dbo.searchOne(UserInformation,
UserInformation.user_id,
order.user_id)
user.free_money_amount += stock.now_price * order.stock_amount - service_charge
holdings.stock_amount -= order.stock_amount
order.is_alive = False
else:
continue
else:
continue
dbo.update()