65 lines
2.2 KiB
Python
65 lines
2.2 KiB
Python
# 删除本地数据库中的过期数据
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import logging.config
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from datetime import datetime, timedelta
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from db import MysqlSession
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from db.mysql import ZxPhhd, ZxIeCost, ZxIeDischarge, ZxIeResult, ZxIeSettlement, ZxPhrec
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from log import LOGGING_CONFIG
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# 过期时间
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EXPIRATION_DAYS = 180
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# 批量删除数量
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BATCH_SIZE = 5000
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# 数据库会话对象
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session = None
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def batch_delete_by_pk_phhd(model, pk_phhds):
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"""
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批量删除指定模型中主键在指定列表中的数据
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参数：
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model：SQLAlchemy模型类（对应数据库表）
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pk_phhds：待删除的主键值列表
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返回：
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删除的记录数量
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"""
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delete_count = (
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session.query(model)
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.filter(model.pk_phhd.in_(pk_phhds))
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.delete(synchronize_session=False)
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)
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session.commit()
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logging.getLogger("sql").info(f"{model.__tablename__}成功删除{delete_count}条数据")
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return delete_count
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if __name__ == '__main__':
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logging.config.dictConfig(LOGGING_CONFIG)
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deadline = datetime.now() - timedelta(days=EXPIRATION_DAYS)
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session = MysqlSession()
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try:
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while 1:
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phhds = (session.query(ZxPhhd.pk_phhd)
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.filter(ZxPhhd.paint_flag == "9")
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.filter(ZxPhhd.billdate < deadline)
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.limit(BATCH_SIZE)
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.all())
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if not phhds or len(phhds) <= 0:
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# 没有符合条件的数据，退出循环
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break
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pk_phhd_values = [phhd.pk_phhd for phhd in phhds]
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logging.getLogger("sql").info(f"过期的pk_phhd有{','.join(map(str, pk_phhd_values))}")
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batch_delete_by_pk_phhd(ZxPhrec, pk_phhd_values)
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batch_delete_by_pk_phhd(ZxIeResult, pk_phhd_values)
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batch_delete_by_pk_phhd(ZxIeSettlement, pk_phhd_values)
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batch_delete_by_pk_phhd(ZxIeDischarge, pk_phhd_values)
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batch_delete_by_pk_phhd(ZxIeCost, pk_phhd_values)
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batch_delete_by_pk_phhd(ZxPhhd, pk_phhd_values)
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except Exception as e:
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session.rollback()
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logging.getLogger('error').error('过期数据删除失败！', exc_info=e)
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finally:
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session.close()
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