73 lines
2.8 KiB
Python
73 lines
2.8 KiB
Python
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'
|
|
# TODO: Properly type query.
|
|
query: Any
|
|
|
|
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: datetime = Column(DateTime(), nullable=False)
|
|
# Time until the pair is locked (end time)
|
|
lock_end_time: datetime = 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,
|
|
}
|