from sqlalchemy import ( Column,Date,DateTime,
    ForeignKey,
    Integer,
    SmallInteger,
    String,
    func,
)
from sqlalchemy.orm import relationship

from database import Base


class Advisor(Base):

    __tablename__ = "advisor"

    adv_id = Column(Integer, primary_key=True, autoincrement=True, comment="顾问编号")
    adv_name = Column(String(50), nullable=False, index=True, comment="顾问姓名")
    adv_gender = Column(String(8), comment="性别")
    adv_phone = Column(String(20), index=True, comment="手机号")
    adv_email = Column(String(64), comment="邮箱")
    adv_region = Column(String(64), comment="负责区域/招生渠道")
    is_deleted = Column(SmallInteger,nullable=False, default=0,server_default="0",
        index=True,comment="1=已删除",)
#下面的内容临时注释，在main导入时，SQLAlchemy 在配置映射时就会报错，错误大概是：ArgumentError: Could not locate any relevant foreign key columns for primary join condition ...
    # students = relationship("Student",primaryjoin="and_(Advisor.id == stu_id, Student.is_deleted == 0)",
    #     foreign_keys="stu_id",viewonly=True,lazy="selectin",)