# 与数据库的表进行关联
# 导入database文件,这里已经创建基类
from sqlalchemy import Column, Integer, ForeignKey, String
from sqlalchemy.orm import relationship
from database import Base
# 关联数据库中的teacher表
class Teacher(Base):
    __tablename__ = 'teacher'
    teacher_id = Column(Integer, primary_key=True)
    class_id = Column(Integer,ForeignKey('c_lass.class_id'),nullable=False)
    teacher_name = Column(String(50),nullable=False)
    job_name=Column(String(50),nullable=False,comment='主讲、班主任、助教')
    is_deleted = Column(Integer, default=0, nullable=False)
    classes=relationship("Classinfo",back_populates="teachers")
    def __repr__(self):
        return f"<Teacher(teacher_id={self.teacher_id},class_id={self.class_id},teacher_name='{self.teacher_name}',job_name='{self.job_name}')>"