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Fix migrations, revert some parts related to amount properties

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This commit is contained in:
Matthias 2021-07-03 17:03:12 +02:00 committed by Sam Germain
parent 25ff726921
commit 75b2c9ca1b
3 changed files with 58 additions and 49 deletions
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25
freqtrade/persistence/migrations.py
View File

@ -91,7 +91,8 @@ def migrate_trades_table(decl_base, inspector, engine, table_back_name: str, col
stoploss_order_id, stoploss_last_update,
max_rate, min_rate, sell_reason, sell_order_status, strategy,
timeframe, open_trade_value, close_profit_abs,
leverage, borrowed, borrowed_currency, collateral_currency, interest_rate, liquidation_price, is_short
leverage, borrowed, borrowed_currency, collateral_currency, interest_rate,
liquidation_price, is_short
)
select id, lower(exchange),
case
@ -115,8 +116,8 @@ def migrate_trades_table(decl_base, inspector, engine, table_back_name: str, col
{sell_order_status} sell_order_status,
{strategy} strategy, {timeframe} timeframe,
{open_trade_value} open_trade_value, {close_profit_abs} close_profit_abs,
{leverage} leverage, {borrowed} borrowed, {borrowed_currency} borrowed_currency,
{collateral_currency} collateral_currency, {interest_rate} interest_rate,
{leverage} leverage, {borrowed} borrowed, {borrowed_currency} borrowed_currency,
{collateral_currency} collateral_currency, {interest_rate} interest_rate,
{liquidation_price} liquidation_price, {is_short} is_short
from {table_back_name}
"""))
@ -152,14 +153,17 @@ def migrate_orders_table(decl_base, inspector, engine, table_back_name: str, col
# let SQLAlchemy create the schema as required
decl_base.metadata.create_all(engine)
leverage = get_column_def(cols, 'leverage', 'null')
is_short = get_column_def(cols, 'is_short', 'False')
with engine.begin() as connection:
connection.execute(text(f"""
insert into orders ( id, ft_trade_id, ft_order_side, ft_pair, ft_is_open, order_id,
status, symbol, order_type, side, price, amount, filled, average, remaining, cost,
order_date, order_filled_date, order_update_date, leverage)
order_date, order_filled_date, order_update_date, leverage, is_short)
select id, ft_trade_id, ft_order_side, ft_pair, ft_is_open, order_id,
status, symbol, order_type, side, price, amount, filled, null average, remaining, cost,
order_date, order_filled_date, order_update_date, leverage
order_date, order_filled_date, order_update_date,
{leverage} leverage, {is_short} is_short
from {table_back_name}
"""))
@ -174,8 +178,9 @@ def check_migrate(engine, decl_base, previous_tables) -> None:
tabs = get_table_names_for_table(inspector, 'trades')
table_back_name = get_backup_name(tabs, 'trades_bak')
# Check for latest column
if not has_column(cols, 'open_trade_value'):
# Last added column of trades table
# To determine if migrations need to run
if not has_column(cols, 'collateral_currency'):
logger.info(f'Running database migration for trades - backup: {table_back_name}')
migrate_trades_table(decl_base, inspector, engine, table_back_name, cols)
# Reread columns - the above recreated the table!
@ -188,9 +193,11 @@ def check_migrate(engine, decl_base, previous_tables) -> None:
else:
cols_order = inspector.get_columns('orders')
if not has_column(cols_order, 'average'):
# Last added column of order table
# To determine if migrations need to run
if not has_column(cols_order, 'leverage'):
tabs = get_table_names_for_table(inspector, 'orders')
# Empty for now - as there is only one iteration of the orders table so far.
table_back_name = get_backup_name(tabs, 'orders_bak')
migrate_orders_table(decl_base, inspector, engine, table_back_name, cols)
migrate_orders_table(decl_base, inspector, engine, table_back_name, cols_order)

79
freqtrade/persistence/models.py
View File

@ -234,7 +234,7 @@ class LocalTrade():
close_profit: Optional[float] = None
close_profit_abs: Optional[float] = None
stake_amount: float = 0.0
_amount: float = 0.0
amount: float = 0.0
amount_requested: Optional[float] = None
open_date: datetime
close_date: Optional[datetime] = None
@ -266,8 +266,8 @@ class LocalTrade():
interest_rate: float = 0.0
liquidation_price: float = None
is_short: bool = False
_borrowed: float = 0.0
_leverage: float = None # * You probably want to use LocalTrade.leverage instead
borrowed: float = 0.0
leverage: float = None
# @property
# def base_currency(self) -> str:
@ -275,42 +275,45 @@ class LocalTrade():
# raise OperationalException('LocalTrade.pair must be assigned')
# return self.pair.split("/")[1]
@property
def amount(self) -> float:
if self._leverage is not None:
return self._amount * self.leverage
else:
return self._amount
# TODO: @samgermain: Amount should be persisted "as is".
# I've partially reverted this (this killed most of your tests)
# but leave this here as i'm not sure where you intended to use this.
# @property
# def amount(self) -> float:
# if self._leverage is not None:
# return self._amount * self.leverage
# else:
# return self._amount
@amount.setter
def amount(self, value):
self._amount = value
# @amount.setter
# def amount(self, value):
# self._amount = value
@property
def borrowed(self) -> float:
if self._leverage is not None:
if self.is_short:
# If shorting the full amount must be borrowed
return self._amount * self._leverage
else:
# If not shorting, then the trader already owns a bit
return self._amount * (self._leverage-1)
else:
return self._borrowed
# @property
# def borrowed(self) -> float:
# if self._leverage is not None:
# if self.is_short:
# # If shorting the full amount must be borrowed
# return self._amount * self._leverage
# else:
# # If not shorting, then the trader already owns a bit
# return self._amount * (self._leverage-1)
# else:
# return self._borrowed
@borrowed.setter
def borrowed(self, value):
self._borrowed = value
self._leverage = None
# @borrowed.setter
# def borrowed(self, value):
# self._borrowed = value
# self._leverage = None
@property
def leverage(self) -> float:
return self._leverage
# @property
# def leverage(self) -> float:
# return self._leverage
@leverage.setter
def leverage(self, value):
self._leverage = value
self._borrowed = None
# @leverage.setter
# def leverage(self, value):
# self._leverage = value
# self._borrowed = None
# End of margin trading properties
@ -639,7 +642,7 @@ class LocalTrade():
# sec_per_day = Decimal(86400)
sec_per_hour = Decimal(3600)
total_seconds = Decimal((now - open_date).total_seconds())
#days = total_seconds/sec_per_day or zero
# days = total_seconds/sec_per_day or zero
hours = total_seconds/sec_per_hour or zero
rate = Decimal(interest_rate or self.interest_rate)
@ -877,7 +880,7 @@ class Trade(_DECL_BASE, LocalTrade):
close_profit = Column(Float)
close_profit_abs = Column(Float)
stake_amount = Column(Float, nullable=False)
_amount = Column(Float)
amount = Column(Float)
amount_requested = Column(Float)
open_date = Column(DateTime, nullable=False, default=datetime.utcnow)
close_date = Column(DateTime)
@ -904,8 +907,8 @@ class Trade(_DECL_BASE, LocalTrade):
timeframe = Column(Integer, nullable=True)
# Margin trading properties
_leverage: float = None # * You probably want to use LocalTrade.leverage instead
_borrowed = Column(Float, nullable=False, default=0.0)
leverage = Column(Float, nullable=True) # TODO: can this be nullable, or should it default to 1? (must also be changed in migrations eventually)
borrowed = Column(Float, nullable=False, default=0.0)
interest_rate = Column(Float, nullable=False, default=0.0)
liquidation_price = Column(Float, nullable=True)
is_short = Column(Boolean, nullable=False, default=False)

3
tests/test_persistence.py
View File

@ -723,13 +723,11 @@ def test_migrate_new(mocker, default_conf, fee, caplog):
order_date DATETIME,
order_filled_date DATETIME,
order_update_date DATETIME,
leverage FLOAT,
PRIMARY KEY (id),
CONSTRAINT _order_pair_order_id UNIQUE (ft_pair, order_id),
FOREIGN KEY(ft_trade_id) REFERENCES trades (id)
)
"""))
# TODO-mg @xmatthias: Had to add field leverage to this table, check that this is correct
connection.execute(text("""
insert into orders ( id, ft_trade_id, ft_order_side, ft_pair, ft_is_open, order_id, status,
symbol, order_type, side, price, amount, filled, remaining, cost, order_date,
@ -752,6 +750,7 @@ def test_migrate_new(mocker, default_conf, fee, caplog):
assert orders[1].order_id == 'stop_order_id222'
assert orders[1].ft_order_side == 'stoploss'
assert orders[0].is_short is False
def test_migrate_mid_state(mocker, default_conf, fee, caplog):