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