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model/__init__.py

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+from model import wl_student_model

model/wl_advisor_model.py

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+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",)
+
+

model/wl_class_model.py

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+from sqlalchemy import Column, Integer, Date, String
+from sqlalchemy.orm import relationship
+
+from database import Base
+
+class Class_(Base):
+    __tablename__ = "class_info"
+
+    class_id = Column(Integer, primary_key=True, autoincrement=True, comment="班级编号")
+    start_time = Column(Date, comment="开课时间")
+
+    students=relationship("Student", back_populates="class_")
+    # 逻辑删除标记（0代表正常，1代表已删除）
+    is_deleted = Column(Integer, default=0, comment="逻辑删除标记")

model/wl_emp_model.py

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+from sqlalchemy import Column, DateTime, ForeignKey, Integer, String, func
+from sqlalchemy.orm import relationship
+
+from database import Base
+
+
+class Emp(Base):
+    __tablename__ = "wl_emp"
+
+    # 学号做主键，同时做外键指向学生表，长度跟 Student.stu_no 保持一致
+    stu_no = Column(String(20), ForeignKey('wl_student.stu_no'), primary_key=True)
+    emp_open_time = Column(DateTime, default="2026-11-30 18:18:18")
+    offer_time = Column(DateTime, default=func.now())
+    company_name = Column(String(100), nullable=False)
+    salary = Column(Integer, nullable=False, default=15000)
+
+    student = relationship("Student", back_populates="emp")
+
+    # 逻辑删除：0 正常 1 已删除
+    is_deleted = Column(Integer, default=0, comment='逻辑删除: 0正常 1删除')
+
+    def __repr__(self):
+        return f"<Emp(stu_no={self.stu_no}, company='{self.company_name}')>"

model/wl_score_model.py

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+from sqlalchemy import Column, Integer, Float, ForeignKey, String
+from sqlalchemy.orm import relationship
+
+from database import Base
+
+class Score(Base):
+    __tablename__ = "wl_score"
+
+    # 和 wl_emp 一样：学号直接做主键，同时做外键指向学生表的业务学号，
+    # 不再用内部主键 stu_id。长度跟 Student.stu_no 保持一致。
+    stu_no = Column(String(20), ForeignKey('wl_student.stu_no'), primary_key=True, comment="学号")
+    exam_order = Column(Integer, primary_key=True, comment="考核序次")
+    score = Column(Float, nullable=False, comment="成绩")
+
+    student=relationship("Student",back_populates="scores")
+
+

model/wl_student_model.py

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+#学生基本信息 周学灵
+from database import Base
+from sqlalchemy import Column, Integer, String, Date, ForeignKey
+from sqlalchemy.orm import relationship
+
+
+class Student(Base):
+    __tablename__ = 'wl_student'
+    # ---------- 内部主键（隐藏，不对外）----------
+    stu_id = Column(Integer, primary_key=True, autoincrement=True, comment='内部主键')
+    # ---------- 业务学号（对外，按规则生成）----------
+    stu_no = Column(String(20), unique=True, nullable=False, index=True, comment='学号')
+    class_id = Column(Integer, ForeignKey('class_info.class_id'), nullable=True, comment='班级ID')
+    stu_name = Column(String(30), nullable=True, comment='学生姓名')
+    native_place = Column(String(50), nullable=True, comment='籍贯')
+    graduate_school=Column(String(128), nullable=True, comment='毕业学校')
+    major= Column(String(64), nullable=True, comment='专业')
+    in_time= Column(Date, nullable=True, comment='入学时间')
+    out_time= Column(Date, nullable=True, comment='毕业时间')
+    edu= Column(String(32), nullable=True, comment='学历')
+    advisor_id = Column(Integer, ForeignKey('advisor.adv_id'), nullable=True, comment='顾问ID')
+    stu_age = Column(Integer, nullable=True, comment='年龄')
+    stu_gender = Column(String(8), nullable=True, comment='性别')
+
+    class_ = relationship("Class_", back_populates="students")
+    scores=relationship("Score",back_populates="student")
+    emp = relationship("Emp", back_populates="student")
+    # advisor = relationship("Advisor", back_populates="students")
+
+    is_deleted = Column(Integer, default=0, comment='逻辑删除: 0正常 1删除')
+    def __repr__(self):
+        return f"<Student(id={self.stu_id}, name='{self.stu_name}')>"

model/wl_teacher_model.py

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+from sqlalchemy import String, Column, ForeignKey, Integer
+from database import Base
+
+class Teacher(Base):
+    __tablename__ = 'wl_teacher'
+    t_id = Column(Integer, primary_key=True, autoincrement=True)
+    t_no = Column(String(20), unique=True, nullable=False)
+    t_name = Column(String(50), nullable=False)
+    t_phone = Column(String(20), unique=True, nullable=True)
+    t_email = Column(String(20), unique=False)
+    #创建老师时必须指定一个存在的班级
+    class_id = Column(Integer, ForeignKey("class_info.class_id"), nullable=False)
+    role = Column(String(50), nullable=False)
+    is_deleted = Column(Integer, default=0)
+
+
+