项目代码提交

model/class_model.py

@@ -0,0 +1,24 @@
+#导入需要用的工具
+from sqlalchemy import Column, Integer, String, DateTime
+from sqlalchemy.orm import relationship
+
+from database import Base
+from model.teacher_model import teacher_class
+
+#班级表
+class Classes(Base):
+    __tablename__ = "classes"
+    cid = Column(Integer, primary_key=True, autoincrement=True)
+    class_name = Column(String(10), nullable=False)
+    start_time = Column(DateTime,nullable=False)
+    head_teacher = Column(String(10),nullable=False)
+    teacher = Column(String(15),nullable=False)
+    is_del = Column(Integer, default=1)  # 与现有查询/删除接口一致：1有效，0删除
+#老师表和班级表多对多
+    teachers = relationship("Teacher", secondary=teacher_class, back_populates="classes")
+# #班级表和学生表一对多
+    students = relationship("Student", back_populates="classes")
+
+
+
+