Extract base and Pairlock from models file

This commit is contained in:
Matthias 2022-05-08 17:38:06 +02:00
parent 3221726d85
commit af1a5e0449
3 changed files with 81 additions and 65 deletions

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@ -0,0 +1,7 @@
from typing import Any
from sqlalchemy.orm import declarative_base
_DECL_BASE: Any = declarative_base()

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@ -7,9 +7,9 @@ from decimal import Decimal
from typing import Any, Dict, List, Optional from typing import Any, Dict, List, Optional
from sqlalchemy import (Boolean, Column, DateTime, Enum, Float, ForeignKey, Integer, String, from sqlalchemy import (Boolean, Column, DateTime, Enum, Float, ForeignKey, Integer, String,
create_engine, desc, func, inspect, or_) create_engine, desc, func, inspect)
from sqlalchemy.exc import NoSuchModuleError from sqlalchemy.exc import NoSuchModuleError
from sqlalchemy.orm import Query, declarative_base, relationship, scoped_session, sessionmaker from sqlalchemy.orm import Query, relationship, scoped_session, sessionmaker
from sqlalchemy.pool import StaticPool from sqlalchemy.pool import StaticPool
from sqlalchemy.sql.schema import UniqueConstraint from sqlalchemy.sql.schema import UniqueConstraint
@ -17,13 +17,14 @@ from freqtrade.constants import DATETIME_PRINT_FORMAT, NON_OPEN_EXCHANGE_STATES,
from freqtrade.enums import ExitType, TradingMode from freqtrade.enums import ExitType, TradingMode
from freqtrade.exceptions import DependencyException, OperationalException from freqtrade.exceptions import DependencyException, OperationalException
from freqtrade.leverage import interest from freqtrade.leverage import interest
from freqtrade.persistence.base import _DECL_BASE
from freqtrade.persistence.migrations import check_migrate from freqtrade.persistence.migrations import check_migrate
from freqtrade.persistence.pairlock import PairLock
logger = logging.getLogger(__name__) logger = logging.getLogger(__name__)
_DECL_BASE: Any = declarative_base()
_SQL_DOCS_URL = 'http://docs.sqlalchemy.org/en/latest/core/engines.html#database-urls' _SQL_DOCS_URL = 'http://docs.sqlalchemy.org/en/latest/core/engines.html#database-urls'
@ -1419,65 +1420,3 @@ class Trade(_DECL_BASE, LocalTrade):
.group_by(Trade.pair) \ .group_by(Trade.pair) \
.order_by(desc('profit_sum')).first() .order_by(desc('profit_sum')).first()
return best_pair return best_pair
class PairLock(_DECL_BASE):
"""
Pair Locks database model.
"""
__tablename__ = 'pairlocks'
id = Column(Integer, primary_key=True)
pair = Column(String(25), nullable=False, index=True)
# lock direction - long, short or * (for both)
side = Column(String(25), nullable=False, default="*")
reason = Column(String(255), nullable=True)
# Time the pair was locked (start time)
lock_time = Column(DateTime, nullable=False)
# Time until the pair is locked (end time)
lock_end_time = Column(DateTime, nullable=False, index=True)
active = Column(Boolean, nullable=False, default=True, index=True)
def __repr__(self):
lock_time = self.lock_time.strftime(DATETIME_PRINT_FORMAT)
lock_end_time = self.lock_end_time.strftime(DATETIME_PRINT_FORMAT)
return (
f'PairLock(id={self.id}, pair={self.pair}, side={self.side}, lock_time={lock_time}, '
f'lock_end_time={lock_end_time}, reason={self.reason}, active={self.active})')
@staticmethod
def query_pair_locks(pair: Optional[str], now: datetime, side: str = '*') -> Query:
"""
Get all currently active locks for this pair
:param pair: Pair to check for. Returns all current locks if pair is empty
:param now: Datetime object (generated via datetime.now(timezone.utc)).
"""
filters = [PairLock.lock_end_time > now,
# Only active locks
PairLock.active.is_(True), ]
if pair:
filters.append(PairLock.pair == pair)
if side != '*':
filters.append(or_(PairLock.side == side, PairLock.side == '*'))
else:
filters.append(PairLock.side == '*')
return PairLock.query.filter(
*filters
)
def to_json(self) -> Dict[str, Any]:
return {
'id': self.id,
'pair': self.pair,
'lock_time': self.lock_time.strftime(DATETIME_PRINT_FORMAT),
'lock_timestamp': int(self.lock_time.replace(tzinfo=timezone.utc).timestamp() * 1000),
'lock_end_time': self.lock_end_time.strftime(DATETIME_PRINT_FORMAT),
'lock_end_timestamp': int(self.lock_end_time.replace(tzinfo=timezone.utc
).timestamp() * 1000),
'reason': self.reason,
'side': self.side,
'active': self.active,
}

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@ -0,0 +1,70 @@
from datetime import datetime, timezone
from typing import Any, Dict, Optional
from sqlalchemy import Boolean, Column, DateTime, Integer, String, or_
from sqlalchemy.orm import Query
from freqtrade.constants import DATETIME_PRINT_FORMAT
from freqtrade.persistence.base import _DECL_BASE
class PairLock(_DECL_BASE):
"""
Pair Locks database model.
"""
__tablename__ = 'pairlocks'
id = Column(Integer, primary_key=True)
pair = Column(String(25), nullable=False, index=True)
# lock direction - long, short or * (for both)
side = Column(String(25), nullable=False, default="*")
reason = Column(String(255), nullable=True)
# Time the pair was locked (start time)
lock_time = Column(DateTime, nullable=False)
# Time until the pair is locked (end time)
lock_end_time = Column(DateTime, nullable=False, index=True)
active = Column(Boolean, nullable=False, default=True, index=True)
def __repr__(self):
lock_time = self.lock_time.strftime(DATETIME_PRINT_FORMAT)
lock_end_time = self.lock_end_time.strftime(DATETIME_PRINT_FORMAT)
return (
f'PairLock(id={self.id}, pair={self.pair}, side={self.side}, lock_time={lock_time}, '
f'lock_end_time={lock_end_time}, reason={self.reason}, active={self.active})')
@staticmethod
def query_pair_locks(pair: Optional[str], now: datetime, side: str = '*') -> Query:
"""
Get all currently active locks for this pair
:param pair: Pair to check for. Returns all current locks if pair is empty
:param now: Datetime object (generated via datetime.now(timezone.utc)).
"""
filters = [PairLock.lock_end_time > now,
# Only active locks
PairLock.active.is_(True), ]
if pair:
filters.append(PairLock.pair == pair)
if side != '*':
filters.append(or_(PairLock.side == side, PairLock.side == '*'))
else:
filters.append(PairLock.side == '*')
return PairLock.query.filter(
*filters
)
def to_json(self) -> Dict[str, Any]:
return {
'id': self.id,
'pair': self.pair,
'lock_time': self.lock_time.strftime(DATETIME_PRINT_FORMAT),
'lock_timestamp': int(self.lock_time.replace(tzinfo=timezone.utc).timestamp() * 1000),
'lock_end_time': self.lock_end_time.strftime(DATETIME_PRINT_FORMAT),
'lock_end_timestamp': int(self.lock_end_time.replace(tzinfo=timezone.utc
).timestamp() * 1000),
'reason': self.reason,
'side': self.side,
'active': self.active,
}