# students_model处理数据库模型
import datetime

from databases import engine_all,Base_all,Session
from sqlalchemy import *
# from students.databases import *
from datetime import datetime
from sqlalchemy.dialects.mysql import DATETIME
from students.schema.students_request import SexEnum , EducationEnum
from sqlalchemy import Enum,ForeignKey,Integer,String

class Students(Base_all):
    __tablename__ = 'students'
    id = Column(Integer
                 , primary_key=True
                 , autoincrement=True
                 , comment='学生ID，自增主键'
                 )
    num = Column(String(50)
                 , nullable=False
                 , unique=True
                 , comment='学生编号'
                 )

    name = Column(String(50)
                  , comment='学生姓名'
                  , nullable=False )

    age = Column(Integer
                 , comment='年龄'
                 , nullable=False)

    sex = Column(Enum(SexEnum)
                 , comment='性别'
                 , nullable=False)

    home_Place = Column(String(50)
                        , comment='籍贯')

    college = Column(String(50)
                     , comment='毕业院校')

    specialty = Column(String(50)
                       , comment='专业')

    enrollment_time = Column(DATETIME
                             , comment='入学时间')

    graduate_time = Column(DATETIME
                           , comment='毕业时间')

    education = Column(Enum(EducationEnum)
                       , comment='学历'
                       , nullable=True)

    # 外键字段
    class_id = Column(Integer
                      , ForeignKey("classes.id")
                      , comment='学生班级'
                      , nullable=False )

    advisor_id = Column(Integer
                        , ForeignKey("teachers.id")
                        , comment='顾问ID')

    # 额外字段
    phone = Column(String(11)
                   , comment='学生手机号'
                   , nullable=False
                   , unique=True )

    # 通用字段
    create_date = Column(DATETIME(fsp=6)
                         , default=datetime.now
                         , comment='创建时间' )

    update_date = Column(DATETIME(fsp=6)
                         , default=datetime.now
                         , comment='更新时间' )

    is_deleted = Column(INTEGER
                        , default=False
                        , comment='是否删除：0-正常，1-已删除' )

    deleted_date = Column(DATETIME(fsp=6)
                          , default=None
                          , comment='删除时间'  )