20 lines
917 B
Python
20 lines
917 B
Python
from sqlalchemy import Column, Integer, String, DATETIME, create_engine, Boolean,Text,text
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from datetime import datetime
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# 定义基类模板，解决通用字段
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class Template():
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id = Column( Integer # 声明字段的数据类型
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, primary_key=True # 声明是主键
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, autoincrement=True # 声明是自增主键
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, comment='订单编号，自增主键' # 注释
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)
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create_datetime = Column(DATETIME
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, default=datetime.now # 默认值是当前时间
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)
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update_datetime = Column(DATETIME
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, default=datetime.now # 首次创建的时间跟更新时间一致
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, onupdate=datetime.now
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)
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is_deleted = Column(Boolean, default=False,server_default=text("0"))
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delete_datetime = Column(DATETIME, nullable=True)
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