31 lines
1.1 KiB
Python
31 lines
1.1 KiB
Python
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from sqlalchemy import *
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from datetime import datetime
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from database import Base
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class Class(Base):
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'''
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班级信息数据库类模型
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'''
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__tablename__ = "s_class"
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id = Column(Integer,
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primary_key=True,
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autoincrement=True,
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index=True,#为该列创建索引，加快查询速度
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comment='班级主键id')
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class_id = Column(String(32),
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nullable=False,
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index=True,
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unique=True,
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comment='班级编号')
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class_name = Column(String(32),
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nullable=False,
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index=True,
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comment='班级名字')
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ht_id = Column(Integer,nullable=False,
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comment='班主任ID')
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t_id = Column(Integer,nullable=False,
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comment='授课老师ID')
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start_time = Column(DATETIME,default=datetime.now,comment='开课时间')
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update_time = Column(DATETIME,default=datetime.now,onupdate=datetime.now)
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is_deleted = Column(Integer,default=0,index=True)
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