diff --git a/database.py b/database.py index e69de29..ecff48f 100644 --- a/database.py +++ b/database.py @@ -0,0 +1,13 @@ +from models import * +from core.database import * +from sqlalchemy import create_engine + + +db_url = "mysql+pymysql://root:123456@127.0.0.1:3306/student_manager?charset=utf8mb4" +engine = create_engine(db_url + ,pool_size=50 + ,echo=True) + +Base.metadata.create_all(engine) +db = SessionLocal() +db.commit() \ No newline at end of file diff --git a/models/__init__.py b/models/__init__.py index 8b13789..10d5f19 100644 --- a/models/__init__.py +++ b/models/__init__.py @@ -1 +1,7 @@ - +from .class_model import Classes +from .class_teacher import ClassTeachers +from .consultant import Consultant +from .employment import Employment +from .score import Score +from .student import Student +from .teacher import Teacher diff --git a/models/class_model.py b/models/class_model.py index 8c7935d..35c1c9f 100644 --- a/models/class_model.py +++ b/models/class_model.py @@ -3,7 +3,7 @@ from datetime import datetime # 导入datetime模块下的datetime类 from core.database import Base # 从core软件包下的database模块导入Base class Classes( Base ): # 在python里的名字 - __tablename__ = 'classes' # 在数据库中表的名字 + __tablename__ = 'class_info_detail' # 在数据库中表的名字 #————创建班级"主键"的字段名———— id = Column( Integer # 声明字段的数据类型是"整数" , primary_key = True # 声明是"主键" diff --git a/models/class_teacher.py b/models/class_teacher.py index e69de29..37d1e35 100644 --- a/models/class_teacher.py +++ b/models/class_teacher.py @@ -0,0 +1,53 @@ +from sqlalchemy import (Column, Integer, String, Text, + BigInteger,ForeignKey,VARCHAR,DateTime + ) +from sqlalchemy.dialects.mssql import TINYINT + +from core.database import Base +from datetime import datetime + + +#班级老师关系表 class_teachers_info_detail 中间表 ORM 模型完整定义 +#字段包括id,class_id,teacher_id,role,created_at,updated_at,is_deleted +class ClassTeachers(Base): + __tablename__ = "class_teachers_info_detail" + id = Column( + Integer + ,primary_key=True + ,autoincrement=True + ,comment='关系') + class_id = Column( + Integer + ,ForeignKey('class_info_detail.id') + ,nullable=False + ,comment='关联 class_id' + ) + teacher_id = Column( + Integer + ,ForeignKey("teacher_info_detail.id") + ,nullable=False + ,comment='关联 teacher_id' + ) + role = Column( + VARCHAR(30) + ,nullable=False + ,comment='老师在班级中的角色：head_teacher班主任 / lecturer授课老师 / assistant助教' + ) + created_at = Column( + DateTime + ,nullable=False + ,default=datetime.now() + ,comment='创建时间' + ) + updated_at = Column( + DateTime + ,nullable=False + ,default=datetime.now() + ,comment='更新时间' + ) + is_deleted = Column( + TINYINT + ,nullable=False + ,default=0 + ,comment='逻辑删除' + ) diff --git a/models/consultant.py b/models/consultant.py index d51ac3d..5f6f4ed 100644 --- a/models/consultant.py +++ b/models/consultant.py @@ -3,7 +3,7 @@ from sqlalchemy import * from datetime import datetime from core.database import Base class Consultant(Base): - __tablename__ = "consultants" + __tablename__ = "consultant_info_detail" id = Column(Integer, primary_key=True, autoincrement=True, comment="主键") consultant_no = Column(String(50), unique=True, nullable=False, comment="顾问编号") diff --git a/models/employment.py b/models/employment.py index 69e2706..76a1f7c 100644 --- a/models/employment.py +++ b/models/employment.py @@ -6,11 +6,11 @@ from core.database import Base, engine # 为了符合三范式，就业表只保存 student_id，不保存学生姓名和班级名称。查询返回时通过关联 students 和 classes 带出学生姓名、班级名称。 class Employment(Base): - __tablename__ = "employments" # 实际数据库的表名字 - id = Column(BigInteger, primary_key=True # 主键 + __tablename__ = "employment_info_detail" # 实际数据库的表名字 + id = Column(Integer, primary_key=True # 主键 , autoincrement=True # 声明是自增主键 ,comment="就业信息主键id") - student_id = Column(BigInteger, ForeignKey("students.id") # 外键 -> students.id + student_id = Column(Integer, ForeignKey("student_info_detail.id") # 外键 -> students.id , nullable=False # 不允许为null ,comment="关联学生id") employment_status = Column(String(50) diff --git a/models/score.py b/models/score.py index c7fe39c..90e9682 100644 --- a/models/score.py +++ b/models/score.py @@ -9,7 +9,7 @@ class Score(Base): ,comment="成绩表序号，自增主键" ) student_id = Column(Integer - ,ForeignKey("student.id") + ,ForeignKey("student_info_detail.id") ,nullable=False ,comment="学生学号" ) diff --git a/models/student.py b/models/student.py index 990a693..ab805e4 100644 --- a/models/student.py +++ b/models/student.py @@ -13,11 +13,11 @@ class Student(Base): , unique = True) student_name = Column(VARCHAR(50)) class_id = Column(Integer - ,foreign_key = 'class_info_detail.id' + ,ForeignKey('class_info_detail.id') )#外键约束 班级表的主键id，存在这个班级，学生表才可以输入 consultant_id = Column(Integer + , ForeignKey('consultant_info_detail.id') ,nullable = True - ,foreign_key = 'consultant_info_detail.id' )#外键约束 顾问表的主键id，存在这个顾问，才可以写入，允许为空 native_place = Column(VARCHAR(100) ,nullable = True) diff --git a/models/teacher.py b/models/teacher.py index fe6ff57..0e930d7 100644 --- a/models/teacher.py +++ b/models/teacher.py @@ -10,7 +10,7 @@ from datetime import datetime # teachers 老师表 ORM 模型 #字段包括id,teacher_no,teacher_name,phone,email,remark,created_at,updated_at,is_deleted class Teacher(Base): - __tablename__ = 'teachers_info_detail' + __tablename__ = 'teacher_info_detail' id = Column( Integer , primary_key=True @@ -62,48 +62,3 @@ class Teacher(Base): ) -#班级老师关系表 class_teachers_info_detail 中间表 ORM 模型完整定义 -#字段包括id,class_id,teacher_id,role,created_at,updated_at,is_deleted -class ClassTeachers(Base): - __tablename__ = "class_teachers_info_detail" - id = Column( - BigInteger - ,primary_key=True - ,autoincrement=True - ,comment='关系') - class_id = Column( - BigInteger - ,ForeignKey('class_id') - ,nullable=False - ,comment='关联 class_id' - ) - teacher_id = Column( - BigInteger - ,ForeignKey('teacher_id') - ,nullable=False - ,comment='关联 teacher_id' - ) - role = Column( - VARCHAR(30) - ,nullable=False - ,comment='老师在班级中的角色：head_teacher班主任 / lecturer授课老师 / assistant助教' - ) - created_at = Column( - DateTime - ,nullable=False - ,default=datetime.now() - ,comment='创建时间' - ) - updated_at = Column( - DateTime - ,nullable=False - ,default=datetime.now() - ,comment='更新时间' - ) - is_deleted = Column( - TINYINT - ,nullable=False - ,default=0 - ,comment='逻辑删除' - ) -