from sqlalchemy import *
from sqlalchemy.orm import *

from database import Base


class Emp(Base):
    __tablename__ = "wl_emp"

    stu_id = Column(Integer,ForeignKey('wl_student.stu_id'), primary_key=True, autoincrement=True)
    emp_open_time = Column(DateTime, default="2026-11-30 18:18:18")
    offer_time = Column(DateTime, default=func.now())
    company_name = Column(String(100), nullable=False)
    salary = Column(Integer, nullable=False, default=15000)

    # Student.emp 用的是 back_populates="student"，这个反向属性必须保留，否则 mapper 配置失败
    student = relationship("Student", back_populates="emp")

    def __repr__(self):
        pass