let a finished island quiz open the next island, and ground ask-AI in the student's book
The frontend plays node quizzes, but a node only completed once every one of its
8-13 lessons was completed separately, so students were stuck after the first
island of each unit. POST /api/nodes/{id}/quiz/complete now completes the node
(any score; score only sets stars/xp) and returns nextNodeId.
Also closes the other backend gaps found while auditing the frontend:
- /api/ai/ask without lessonId now picks the book from the user's grade instead
of skipping retrieval, so the "ask Pi" tab is grounded in the textbook.
- guest sessions return a refreshToken; they used to go silently 401 after 1h.
- lesson_complete throttle 10/hour -> 120/hour (a lesson here is 1-2 questions).
- progressPercent is per grade, not over all 2,617 lessons of every grade.
- a one-year plan (299,000 toman) is created by migration when no plan exists.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
@@ -157,6 +157,43 @@ class UserLessonCompletion(models.Model):
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return f"completion-user{self.user_id}-lesson{self.lesson_id}"
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class UserNodeCompletion(models.Model):
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"""
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پایانِ آزمونِ یک مبحث (جزیرهی روی نقشه) — POST /api/nodes/{id}/quiz/complete.
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چرا جدا از UserLessonCompletion: اپ در سطحِ مبحث بازی میکند (آزمونِ
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چهارسوالیِ GET /nodes/{id}/quiz) ولی مبحث فقط وقتی «تمام» حساب میشد که
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تکتکِ درسهایش (معمولاً ۸ تا ۱۳ تا) جدا تمام شده باشند. با آزمونِ مبحث
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هیچوقت به آن نمیرسید و جزیرهی بعدی قفل میماند. قاعده عمداً ساده است:
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آزمونِ جزیره که تمام شد، جزیره تمام است و بعدی باز میشود. نمره فقط
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ستاره و امتیاز را تعیین میکند، نه باز شدنِ مسیر.
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"""
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user_id = models.IntegerField(db_index=True) # ارجاع سبک به accounts.User
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node = models.ForeignKey(Node, on_delete=models.CASCADE, related_name='completions')
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correct_count = models.PositiveIntegerField()
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total_questions = models.PositiveIntegerField()
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stars = models.PositiveSmallIntegerField()
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xp_earned = models.PositiveIntegerField(default=0)
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coins_earned = models.PositiveIntegerField(default=0)
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# تکرارِ آزمون مجاز است (فقط بارِ اول جایزه دارد)؛ کلید فقط جلوی ردیفِ
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# تکراریِ ناشی از دابلکلیک/رتریِ همان submit را میگیرد.
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idempotency_key = models.CharField(max_length=100, null=True, blank=True)
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created_at = models.DateTimeField(auto_now_add=True)
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class Meta:
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constraints = [
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models.UniqueConstraint(
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fields=['user_id', 'node', 'idempotency_key'],
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condition=models.Q(idempotency_key__isnull=False) & ~models.Q(idempotency_key=''),
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name='uniq_node_completion_idempotency_key',
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),
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]
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indexes = [models.Index(fields=['user_id', 'node'])]
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def __str__(self):
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return f"node-completion-user{self.user_id}-node{self.node_id}"
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class NodeProgress(models.Model):
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"""
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وضعیتِ پیشرفتِ هر کاربر روی هر Node (نه Lesson و نه Unit).
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