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"

    id = Column(Integer, primary_key=True, autoincrement=True, comment="顾问编号")
    name = Column(String(50), nullable=False, index=True, comment="顾问姓名")
    gender = Column(String(8), comment="性别")
    phone = Column(String(20), index=True, comment="手机号")
    email = Column(String(64), comment="邮箱")
    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",)

    students = relationship("Student",primaryjoin="and_(Advisor.id == Student.advisor_id, Student.is_deleted == 0)",
        foreign_keys="Student.advisor_id",viewonly=True,lazy="selectin",)