25 lines
910 B
Python
25 lines
910 B
Python
"""客观题本地判分：精确比对答案集合。"""
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from app.models.question import OBJECTIVE_TYPES, Question
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def is_objective(q: Question) -> bool:
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return q.type in OBJECTIVE_TYPES
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def can_grade_locally(q: Question) -> bool:
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"""客观题且录了标准答案，才能本地判。"""
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return is_objective(q) and bool(q.correct_answer)
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def grade_objective(q: Question, user_answer: list[str]) -> bool | None:
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"""选择/判断题：忽略顺序与大小写，比对答案集合。
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没录标准答案时返回 None（无法判定），而不是 False —— 否则一条只是
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随手记下、还没填答案的笔记会被静默算错，并污染复习清单。
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"""
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correct = {str(a).strip().upper() for a in (q.correct_answer or [])}
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if not correct:
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return None
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given = {str(a).strip().upper() for a in (user_answer or [])}
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return correct == given
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