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更新内容： - 后端 AI 服务优化（能力分析、知识点解析等） - 前端考试和陪练界面更新 - 修复多个 prompt 和 JSON 解析问题 - 更新 Coze 语音客户端
45 lines
2.5 KiB
Python
45 lines
2.5 KiB
Python
"""
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错题记录模型
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"""
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from sqlalchemy import Column, Integer, ForeignKey, Text, DateTime, func
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from sqlalchemy.orm import relationship
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from datetime import datetime
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from app.models.base import BaseModel
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class ExamMistake(BaseModel):
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"""错题记录表"""
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__tablename__ = "exam_mistakes"
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# 核心关联字段
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user_id = Column(Integer, ForeignKey("users.id", ondelete="CASCADE"), nullable=False, index=True, comment="用户ID")
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exam_id = Column(Integer, ForeignKey("exams.id", ondelete="CASCADE"), nullable=False, index=True, comment="考试ID")
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round = Column(Integer, nullable=True, default=1, comment="考试轮次(1/2/3)")
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question_id = Column(Integer, ForeignKey("questions.id", ondelete="SET NULL"), nullable=True, index=True, comment="题目ID（AI生成的题目可能为空）")
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knowledge_point_id = Column(Integer, ForeignKey("knowledge_points.id", ondelete="SET NULL"), nullable=True, index=True, comment="关联的知识点ID")
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# 题目核心信息
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question_content = Column(Text, nullable=False, comment="题目内容")
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correct_answer = Column(Text, nullable=False, comment="正确答案")
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user_answer = Column(Text, nullable=True, comment="用户答案")
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question_type = Column(Text, nullable=True, index=True, comment="题型(single/multiple/judge/blank/essay)")
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# 掌握状态和统计字段
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mastery_status = Column(Text, nullable=False, default='unmastered', index=True, comment="掌握状态: unmastered-未掌握, mastered-已掌握")
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difficulty = Column(Text, nullable=False, default='medium', index=True, comment="题目难度: easy-简单, medium-中等, hard-困难")
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wrong_count = Column(Integer, nullable=False, default=1, comment="错误次数统计")
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mastered_at = Column(DateTime, nullable=True, comment="标记掌握时间")
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# 审计字段（继承自BaseModel，但这里重写以匹配数据库实际结构）
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created_at = Column(DateTime, nullable=False, server_default=func.now(), comment="创建时间（北京时间）")
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updated_at = Column(DateTime, nullable=False, server_default=func.now(), onupdate=func.now(), comment="更新时间（北京时间）")
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# 关系
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user = relationship("User", backref="exam_mistakes")
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exam = relationship("Exam", backref="mistakes")
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question = relationship("Question", backref="mistake_records")
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knowledge_point = relationship("KnowledgePoint", backref="mistake_records")
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def __repr__(self):
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return f"<ExamMistake(id={self.id}, user_id={self.user_id}, exam_id={self.exam_id})>"
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