Critical bug fix:
- DELETE /quizzes/{id} was returning 500 due to {\"quiz_id\": None} update using
the DB column name instead of Python attribute name (source_quiz_id).
Fixed with {QuestionModel.source_quiz_id: None, synchronize_session=False}
Extraction fix:
- Two-phase extraction was incorrectly triggering for PREP 2012/2014 format
documents that have 'Preferred Response:' in their explanation text.
Fix: check for inline 'Correct Answer:' first — if found, always use standard
extraction regardless of 'Preferred Response:' appearing elsewhere.
Quiz trash bin:
- DELETE /quizzes/{id} now soft-deletes (sets deleted_at)
- GET /quizzes/trash — list deleted quizzes (moderator)
- PATCH /quizzes/{id}/restore — restore from trash
- DELETE /quizzes/{id}/permanent — permanent delete (must be in trash first)
- TrashPage.jsx — accessible via Settings → Admin → Trash
Hide/publish quizzes:
- is_published column on quizzes (1=visible, 0=hidden)
- PATCH /quizzes/{id}/publish?published=false — hide from regular users
- Moderators see all quizzes; regular users only see published
- 👁/🙈 toggle button per quiz card (moderators only)
Quiz progress resume (cross-browser via Redis):
- POST /attempts/progress — save {answers, current_idx, mode} to Redis (7 days)
- GET /attempts/progress?quiz_id=N — retrieve saved progress
- DELETE /attempts/progress/{quiz_id} — clear on submit
- QuizPage auto-saves to Redis every 1.5s (debounced) while in progress
- ModeSelectScreen loads saved progress from server, shows Resume button
- Works across browsers, devices, and after logout
Delete attempt:
- DELETE /attempts/{id} — user can delete own attempt + clears reminders for that quiz
ConfirmButton component:
- Replaces all window.confirm() / window.prompt() across the app
- Double-click pattern: first click shows [Confirm] [Cancel] inline
- Applied to: QuizzesPage, DocumentDetailPage, QuizEditPage, QuestionBankPage
Category delete (QuestionBankPage):
- window.prompt() replaced with inline modal dialog with select dropdown
- User chooses where to move questions before deletion
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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