feat: 初始化学生管理系统代码

model/__init__.py

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+from sqlalchemy.orm import declarative_base
+
+Base = declarative_base()

model/advisor.py

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+from sqlalchemy import Column, Integer, String
+from sqlalchemy.orm import declarative_base, relationship
+from database import Base
+
+class Advisor(Base):
+    __tablename__ = 'advisor'
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    advisor_no = Column(String(32), unique=True, nullable=False)
+    name = Column(String(50), nullable=False)
+    gender = Column(String(2), nullable=False)
+    phone = Column(String(20), nullable=False)
+    remark=Column(String(500), nullable=True)
+    statu = Column(Integer, default=1, nullable=False)
+    students=relationship("Student", back_populates="advisor")
+
+
+

model/classinfo.py

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+from sqlalchemy import  Column, Integer, String, Date
+from sqlalchemy.orm import relationship
+from database import Base
+from model.teacher_class import teacher_class
+from model.teacher import Teacher
+from model.student import Student
+# 导入中间关联表
+
+# 班级信息表
+class ClassInfo(Base):
+    __tablename__="classinfo"
+    id=Column(Integer,primary_key=True,autoincrement=True)
+    class_name=Column(String(50),nullable=False,unique=True)
+    start_time=Column(Date)
+    statu=Column(Integer,default=1)  # 逻辑删除表字段 1代表存在
+    teachers=relationship(Teacher,secondary=teacher_class,back_populates="classinfo")
+    students= relationship(Student,back_populates="classinfo")

model/employment.py

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+from sqlalchemy import Column, Integer, String, Float, ForeignKey, DateTime, Date
+from sqlalchemy.orm import relationship
+from database import Base
+
+class Employment(Base):
+    __tablename__="employment"
+    id=Column(Integer,primary_key=True, autoincrement=True)
+    name=Column(String(50))
+    stu_id=Column(Integer,ForeignKey("student.id"),unique=True,nullable=False,index=True)
+    employment_open_time=Column(DateTime,nullable=True)
+    offer_time=Column(DateTime,nullable=True)
+    company_name=Column(String(50),nullable=True)
+    salary=Column(Float,nullable=True)
+    is_deleted = Column(Integer, default=0, nullable=False, comment="0未删除 1已删除")
+    student=relationship("Student",back_populates="employment")
+
+
+
+
+

model/score.py

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+# model/score.py
+from sqlalchemy import Column, Integer, Float, ForeignKey, DateTime
+from sqlalchemy.orm import relationship
+from datetime import datetime
+from database import Base
+
+
+class Score(Base):
+    __tablename__ = "score"
+    id = Column(Integer, primary_key=True, autoincrement=True)  # 主键
+    student_id = Column(Integer, ForeignKey("student.id"), nullable=False) #外键
+    exam_seq = Column(Integer, nullable=False)
+    score = Column(Float, nullable=False)
+    is_warning = Column(Integer, default=0) #低分预警 0正常 1不及格
+    is_deleted = Column(Integer, default=0) #是否被逻辑删除
+    create_time = Column(DateTime, default=datetime.now)
+    student = relationship("Student", back_populates="scores")

model/student.py

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+from sqlalchemy import create_engine, Column, Integer, String, Float, ForeignKey, Table, Date
+from sqlalchemy.orm import relationship
+from model import Base
+
+class Student(Base):
+    __tablename__="student"
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    stu_id=Column(String(50),unique=True)
+    name = Column(String(50), nullable=False)
+    hometown=Column(String(100))
+    school = Column(String(100))
+    major= Column(String(100))
+    enroll_time=Column(String(100))
+    graduate_time=Column(String(100))
+    education=Column(String(100))
+    age=Column(Integer)
+    gender=Column(String(10))
+    statu=Column(Integer,nullable=False)
+    advisor_id = Column(Integer, ForeignKey("advisor.id"), nullable=True)
+    class_id = Column(Integer, ForeignKey("classinfo.id"))
+    advisor = relationship("Advisor", back_populates="students")#关联顾问
+    scores = relationship("Score", back_populates="student")#关联成绩
+    employment=relationship("Employment", back_populates="student")#关联就业
+    classinfo = relationship("ClassInfo", back_populates="students")#关联班级
+
+
+
+
+

model/teacher.py

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+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")

model/teacher_class.py

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+from sqlalchemy import create_engine, Column, Integer, String, Float, ForeignKey, Table, Date
+from sqlalchemy.orm import relationship
+from model import Base
+
+teacher_class = Table(
+    "teacher_class",                        # 中间表的名字
+    Base.metadata,                          # 绑定到 Base 的元数据
+    Column("class_id", Integer, ForeignKey("classinfo.id"), primary_key=True),
+    Column("teacher_id", Integer, ForeignKey("teacher.id"), primary_key=True) ,
+    Column("role",String(50))
+
+)