30 lines
1.1 KiB
Python
30 lines
1.1 KiB
Python
# model/cls_mgmt_model.py
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# 班级管理表模型
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from sqlalchemy import Column, Integer, String, Date, ForeignKey
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from sqlalchemy.orm import relationship
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from database import Base
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class ClsMgmt(Base):
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"""
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班级管理表模型
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对应 MySQL 中的 cls_mgmt 表
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"""
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__tablename__ = "cls_mgmt" # 表名
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# 字段定义
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id = Column(String(15), primary_key=True, nullable=False) # 班级编号,主键，非空
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cls_start_date = Column(Date, nullable=False) # 开课时间
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head_tea_id = Column(String(15), ForeignKey("tea_info.id"), nullable=False) # 班主任id
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lecturer_id = Column(String(15), ForeignKey("tea_info.id"), nullable=False) # 主讲老师id
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is_deleted = Column(Integer, nullable=False, default=0)
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stu = relationship("StuInfo", back_populates="cls")
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head_teacher = relationship("Teacher",
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foreign_keys=[head_tea_id],
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back_populates="head_classes")
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lecturer = relationship("Teacher",
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foreign_keys=[lecturer_id],
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back_populates="lecturer_classes") |