23 lines
888 B
Python
23 lines
888 B
Python
# model/classes.py
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# 班级表：对应建表语句中的 c_lass（补充 class_name 字段，便于展示与统计）
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from sqlalchemy import Column, Integer, String, Date
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from sqlalchemy.orm import relationship
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from database import Base
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class Classinfo(Base):
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__tablename__ = "c_lass"
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class_id = Column(Integer, primary_key=True, autoincrement=True)
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class_name = Column(String(50), nullable=False, comment="班级名称，如 Java2301")
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start_time = Column(Date, nullable=False, comment="开课时间")
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is_deleted = Column(Integer, default=0, nullable=False, comment="逻辑删除: 0正常 1删除")
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# 反向关联
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teachers = relationship("Teacher", back_populates="classes")
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students = relationship("Student", back_populates="classes")
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def __repr__(self):
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return f"<Classinfo(class_id={self.class_id}, class_name='{self.class_name}')>"
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