110 lines
5.2 KiB
Python
110 lines
5.2 KiB
Python
from sqlalchemy import Column, Integer, String, DateTime, Boolean, Text, DECIMAL, ForeignKey, Index, UniqueConstraint
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from sqlalchemy.orm import relationship
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from datetime import datetime
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from database import Base
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class BaseModel:
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id = Column(Integer, primary_key=True, autoincrement=True)
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create_time = Column(DateTime, default=datetime.utcnow, nullable=False)
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update_time = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow, nullable=False)
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is_deleted = Column(Boolean, default=False, nullable=False)
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delete_time = Column(DateTime, nullable=True)
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class Teacher(Base, BaseModel):
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__tablename__ = "teachers"
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num = Column(String(30), unique=True, nullable=False, index=True, comment="老师编号")
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name = Column(String(30), nullable=False, default='')
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age = Column(Integer, default=18)
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sex = Column(Integer, default=0, comment="0未知 1男 2女")
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home_place = Column(String(50), comment="家乡")
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college = Column(String(50), comment="毕业院校")
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specialty = Column(String(50), comment="专业")
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enrollment_time = Column(DateTime, comment="入学时间")
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graduate_time = Column(DateTime, comment="毕业时间")
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education = Column(String(50), comment="学历")
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work_experience = Column(Text, comment="工作经验")
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coach_area = Column(String(50), comment="教学方向：应用，项目，算法")
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head_teacher_of = relationship("Class", foreign_keys="Class.head_teacher_id", back_populates="head_teacher")
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coach_teacher_of = relationship("Class", foreign_keys="Class.coach_teacher_id", back_populates="coach_teacher")
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tutor_teacher_of = relationship("Class", foreign_keys="Class.tutor_teacher_id", back_populates="tutor_teacher")
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advisor_of = relationship("Student", foreign_keys="Student.advisor_id", back_populates="advisor")
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class Class(Base, BaseModel):
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__tablename__ = "classes"
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num = Column(String(30), unique=True, nullable=False, index=True, comment="班级编号")
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name = Column(String(30), nullable=False, comment="班级名称")
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class_start_time = Column(DateTime, comment="开课时间")
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head_teacher_id = Column(Integer, ForeignKey("teachers.id"), comment="班主任")
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coach_teacher_id = Column(Integer, ForeignKey("teachers.id"), comment="授课老师")
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tutor_teacher_id = Column(Integer, ForeignKey("teachers.id"), comment="助教老师")
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head_teacher = relationship("Teacher", foreign_keys=[head_teacher_id], back_populates="head_teacher_of")
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coach_teacher = relationship("Teacher", foreign_keys=[coach_teacher_id], back_populates="coach_teacher_of")
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tutor_teacher = relationship("Teacher", foreign_keys=[tutor_teacher_id], back_populates="tutor_teacher_of")
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students = relationship("Student", back_populates="klass")
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employments = relationship("Employment", back_populates="klass")
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class Student(Base, BaseModel):
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__tablename__ = "students"
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num = Column(String(30), unique=True, nullable=False, index=True, comment="学生编号")
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name = Column(String(30), nullable=False, default='')
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age = Column(Integer, default=18)
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sex = Column(Integer, default=0, comment="0未知 1男 2女")
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home_place = Column(String(50), comment="家乡")
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college = Column(String(50), comment="毕业院校")
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specialty = Column(String(50), comment="专业")
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enrollment_time = Column(DateTime, comment="入学时间")
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graduate_time = Column(DateTime, comment="毕业时间")
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education = Column(String(50), comment="学历")
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class_id = Column(Integer, ForeignKey("classes.id"), nullable=False, default=0, index=True)
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advisor_id = Column(Integer, ForeignKey("teachers.id"), comment="顾问id")
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klass = relationship("Class", back_populates="students")
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advisor = relationship("Teacher", foreign_keys=[advisor_id], back_populates="advisor_of")
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scores = relationship("Score", back_populates="student")
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employment = relationship("Employment", back_populates="student", uselist=False)
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class Score(Base, BaseModel):
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__tablename__ = "scores"
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sid = Column(Integer, ForeignKey("students.id"), nullable=False, index=True, comment="学生ID")
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num = Column(String(30), nullable=False, comment="考核序次")
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score = Column(DECIMAL(10, 2), nullable=False, comment="分数")
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student = relationship("Student", back_populates="scores")
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__table_args__ = (
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UniqueConstraint('sid', 'num', name='uk_sid_score'),
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Index('idx_sid', 'sid'),
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)
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class Employment(Base, BaseModel):
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__tablename__ = "employment"
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sid = Column(Integer, ForeignKey("students.id"), unique=True, comment="学生ID")
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class_id = Column(Integer, ForeignKey("classes.id"), nullable=False, index=True, comment="班级ID")
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employment_open_time = Column(DateTime, comment="就业开放时间")
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offer_recived_time = Column(DateTime, comment="offer下发时间")
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employment_company = Column(String(50), comment="就业公司")
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employment_salary = Column(DECIMAL(20, 5), comment="就业薪资")
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student = relationship("Student", back_populates="employment")
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klass = relationship("Class", back_populates="employments")
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__table_args__ = (
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UniqueConstraint('sid', name='uk_sid'),
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Index('idx_class_id', 'class_id'),
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)
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