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"""
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数据库模型定义
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"""
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from sqlalchemy import Column, Integer, String, Float, DateTime, ForeignKey, Boolean
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from sqlalchemy.orm import relationship
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from datetime import datetime
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from backend.database import Base
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class Student(Base):
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"""学生表"""
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__tablename__ = "students"
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id = Column(Integer, primary_key=True, index=True, autoincrement=True)
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student_id = Column(String(50), unique=True, index=True, nullable=False, comment="学号")
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name = Column(String(100), nullable=False, comment="姓名")
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major = Column(String(100), comment="专业")
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total_score = Column(Float, default=0.0, comment="总积分")
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random_rollcall_count = Column(Integer, default=0, comment="随机点名次数")
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order_rollcall_count = Column(Integer, default=0, comment="顺序点名次数")
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transfer_right_count = Column(Integer, default=0, comment="转移权次数")
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created_at = Column(DateTime, default=datetime.now, comment="创建时间")
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updated_at = Column(DateTime, default=datetime.now, onupdate=datetime.now, comment="更新时间")
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# 关系
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rollcall_records = relationship("RollCallRecord", back_populates="student")
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score_records = relationship("ScoreRecord", back_populates="student")
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class RollCallRecord(Base):
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"""点名记录表"""
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__tablename__ = "rollcall_records"
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id = Column(Integer, primary_key=True, index=True, autoincrement=True)
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student_id = Column(Integer, ForeignKey("students.id"), nullable=False, comment="学生ID")
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rollcall_type = Column(String(20), nullable=False, comment="点名类型：random/order")
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is_present = Column(Boolean, default=False, comment="是否到达")
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question_repeat_score = Column(Float, default=0.0, comment="重复问题得分")
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answer_score = Column(Float, default=0.0, comment="回答问题得分")
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attendance_score = Column(Float, default=0.0, comment="到达得分")
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total_score_change = Column(Float, default=0.0, comment="本次积分变化")
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event_type = Column(String(50), comment="随机事件类型")
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created_at = Column(DateTime, default=datetime.now, comment="创建时间")
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# 关系
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student = relationship("Student", back_populates="rollcall_records")
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class ScoreRecord(Base):
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"""积分记录表"""
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__tablename__ = "score_records"
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id = Column(Integer, primary_key=True, index=True, autoincrement=True)
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student_id = Column(Integer, ForeignKey("students.id"), nullable=False, comment="学生ID")
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score_change = Column(Float, nullable=False, comment="积分变化")
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reason = Column(String(200), comment="积分变化原因")
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created_at = Column(DateTime, default=datetime.now, comment="创建时间")
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# 关系
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student = relationship("Student", back_populates="score_records")
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