from sqlalchemy import Column, Integer, String, ForeignKey,Date,DateTime
from sqlalchemy.orm import relationship
from sqlalchemy.sql import func
from model import Base
from model.teacher_class import teacher_class


class Teacher(Base):
    __tablename__="teacher"
    id=Column(Integer,primary_key=True,autoincrement=True)
    teacher_no=Column(String(50),unique=True,nullable=False)
    name=Column(String(50),nullable=False)
    phone=Column(String(50),nullable=False)
    is_deleted=Column(Integer,default=0)
    created_at=Column(DateTime,server_default=func.now())
    updated_at=Column(DateTime,onupdate=func.now())
    classinfo = relationship("ClassInfo",secondary=teacher_class, back_populates="teachers")