aaa

student_system_final/model/classes.py

@@ -0,0 +1,15 @@
+from sqlalchemy import Column, Integer, String, DateTime, Float, Date
+from sqlalchemy.orm import relationship
+from database import Base
+from model.teacher import class_teacher
+
+
+class Class(Base):
+    __tablename__ = "student_class"
+    cid = Column(Integer, primary_key=True)
+    class_name=Column(String(20),nullable=False)
+    start_time=Column(Date,nullable=False)
+    headteacher=Column(String(20),nullable=False)
+    flag=Column(Integer,nullable=False,default=1)
+    teachers=relationship("Teacher",secondary=class_teacher,back_populates="classes")
+    student = relationship("Student", back_populates="classes")

student_system_final/model/student.py

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+from sqlalchemy import Column, Integer, String, DateTime, Float, Date, ForeignKey
+from sqlalchemy.orm import relationship
+from database import Base
+class Student(Base):
+    __tablename__ = "student"
+    sid=Column(Integer,primary_key=True,autoincrement=True)
+    cid =Column(Integer, ForeignKey("student_class.cid"),nullable=False)#班级编号，外键关联班级表
+    name=Column(String(30),nullable=False)#学生姓名，字符串形式，不能为空值（必填）
+    address=Column(String(50),nullable=False)#籍贯，字符串形式，不能为空值（必填）
+    school=Column(String(50),nullable=False)#毕业院校，字符串形式，不能为空值（必填）
+    major=Column(String(50),nullable=False)#专业，字符串形式，不能为空值（必填）
+    start_time=Column(Date,nullable=False)#入学时间，字符串形式，不能为空值（必填）
+    end_time=Column(Date,nullable=True)#毕业时间，字符串形式，可以为空值（未毕业学生）
+    education=Column(String(20),nullable=False)#学历 ，字符串形式，不能为空值（必填）
+    consultant_id=Column(Integer,nullable=False)#顾问编号，整数
+    gender=Column(String(3),nullable=False)#性别，字符串
+    age=Column(Integer,nullable=False)#年龄
+    flag=Column(Integer,nullable=False)#逻辑删除，当值为1是保留，当值为0时删除
+    score=relationship("Score",back_populates="student")
+    work=relationship("Work",back_populates="student")
+    classes=relationship("Class",back_populates="student")
+
+

student_system_final/model/student_score.py

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+# model/users.py
+# 本文件定义 User 表的结构，映射到 MySQL 数据库
+
+from sqlalchemy import Column, Integer, String, DateTime, Float, ForeignKey
+from sqlalchemy.orm import relationship
+from database import Base
+from model.student import Student
+#建立学生考核表模型
+class Score(Base):
+    __tablename__ = "student_score"  # 表名
+    # 字段定义
+    score_id = Column(Integer, primary_key=True,autoincrement=True) # 主键，自增，索引
+    sid = Column(Integer,ForeignKey("student.sid"),nullable=False)  # 用户名，唯一，非空
+    exam_num=Column(Integer)#考核次数
+    score=Column(Float)#分数
+    flag=Column(Integer,default=1)#状态
+    #一对多 成绩表
+    student=relationship("Student", back_populates="score")

student_system_final/model/teacher.py

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+from sqlalchemy import Column, Integer, String, DateTime, Float, Date, Table, ForeignKey
+from sqlalchemy.orm import relationship
+from database import Base
+
+class_teacher=Table("class_teacher",Base.metadata,
+                    Column("cid",Integer,ForeignKey("student_class.cid"),primary_key=True),
+                    Column("teacher_id",Integer,ForeignKey("teacher.teacher_id"),primary_key=True))
+
+class Teacher(Base):
+    __tablename__="teacher"
+    teacher_id=Column(Integer,primary_key=True,autoincrement=True,comment="老师id")
+    teacher_name=Column(String(50),nullable=False)
+    gender=Column(String(5),comment="性别")
+    phone=Column(String(20),comment="联系电话")
+    is_headteacher=Column(Integer,default=0,comment="数据状态 1-班主任 0-教师")
+    flag=Column(Integer,default=1,comment="数据状态 1-正常 0-删除")
+    classes=relationship("Class",secondary=class_teacher,back_populates="teachers")

student_system_final/model/work.py

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+from sqlalchemy import Column, Integer, String, Date, Float, Numeric, ForeignKey
+from sqlalchemy import create_engine
+from sqlalchemy.orm import relationship
+SQ_URL = "mysql+pymysql://root:123456@localhost:3306/student_system"
+engine = create_engine(SQ_URL,pool_size=5,echo=True)
+from database import Base
+class Work(Base):
+    __tablename__ = 'student_work'
+    # 包含字段：学生编号ID、学生姓名、学生班级、就业开放时间、offer下发时间、就业公司名称、就业薪资
+    employment_id = Column(Integer, autoincrement=True,primary_key=True)
+    sid = Column(Integer,ForeignKey("student.sid"), unique=True)
+    open_time = Column(Date, default="1970-01-01")
+    offer_time = Column(Date, default="1970-01-01")
+    company_name = Column(String(50))
+    salary = Column(Numeric(10,2))
+    flag = Column(Integer, default=1)
+    student = relationship("Student", back_populates="work")