import logging from typing import Any, Dict from sqlalchemy import func from freqtrade.configuration.config_setup import setup_utils_configuration from freqtrade.enums import RunMode logger = logging.getLogger(__name__) def start_convert_db(args: Dict[str, Any]) -> None: from sqlalchemy.orm import make_transient from freqtrade.persistence import Order, Trade, init_db from freqtrade.persistence.migrations import set_sequence_ids from freqtrade.persistence.pairlock import PairLock config = setup_utils_configuration(args, RunMode.UTIL_NO_EXCHANGE) init_db(config['db_url']) session_target = Trade.session init_db(config['db_url_from']) logger.info("Starting db migration.") trade_count = 0 pairlock_count = 0 for trade in Trade.get_trades(): trade_count += 1 make_transient(trade) for o in trade.orders: make_transient(o) session_target.add(trade) session_target.commit() for pairlock in PairLock.query: pairlock_count += 1 make_transient(pairlock) session_target.add(pairlock) session_target.commit() # Update sequences max_trade_id = session_target.query(func.max(Trade.id)).scalar() max_order_id = session_target.query(func.max(Order.id)).scalar() max_pairlock_id = session_target.query(func.max(PairLock.id)).scalar() set_sequence_ids(session_target.get_bind(), trade_id=max_trade_id, order_id=max_order_id, pairlock_id=max_pairlock_id) logger.info(f"Migrated {trade_count} Trades, and {pairlock_count} Pairlocks.")