5398342e3d
Suspend now pauses the timer instead of letting it run out: - 'Suspend & Leave' sends suspended=true with time_left to backend - On resume, backend re-anchors started_at to now with held time_left - Closing tab without suspending continues to run the timer (unchanged) Timer-expired auto-submits are marked with expired=1 and excluded from: - Attempt history (GET /attempts/history) - Dashboard stats (quiz count, total attempts, average score) - Attempt list (GET /attempts) - DDL: ALTER TABLE quiz_attempts ADD COLUMN expired INTEGER DEFAULT 0 Course-quiz decoupling is preserved — these changes only touch non-course quizzes (Quiz.course_id IS NULL). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
37 lines
1.6 KiB
Python
37 lines
1.6 KiB
Python
from datetime import datetime
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from sqlalchemy import Column, Integer, Boolean, String, DateTime, ForeignKey, JSON
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from sqlalchemy.orm import relationship
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from app.database import Base
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class QuizAttempt(Base):
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__tablename__ = "quiz_attempts"
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id = Column(Integer, primary_key=True, index=True)
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quiz_id = Column(Integer, ForeignKey("quizzes.id", ondelete="CASCADE"), nullable=False)
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user_id = Column(Integer, ForeignKey("users.id", ondelete="CASCADE"), nullable=False)
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score = Column(Integer, default=0)
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total_questions = Column(Integer, default=0)
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started_at = Column(DateTime, default=datetime.utcnow)
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completed_at = Column(DateTime, nullable=True)
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selected_question_ids = Column(JSON, nullable=True) # for question pool: which questions this attempt uses
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expired = Column(Integer, default=0) # 1 = auto-submitted due to timer expiry (abandoned), excluded from history
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quiz = relationship("Quiz", back_populates="attempts")
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user = relationship("User", back_populates="attempts")
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answers = relationship("AttemptAnswer", back_populates="attempt", cascade="all, delete-orphan")
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class AttemptAnswer(Base):
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__tablename__ = "attempt_answers"
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id = Column(Integer, primary_key=True, index=True)
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attempt_id = Column(Integer, ForeignKey("quiz_attempts.id", ondelete="CASCADE"), nullable=False)
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question_id = Column(Integer, ForeignKey("questions.id", ondelete="CASCADE"), nullable=False)
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user_answer = Column(String, nullable=False)
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is_correct = Column(Boolean, default=False)
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attempt = relationship("QuizAttempt", back_populates="answers")
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question = relationship("Question")
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