Initial Game Logic 2

django/library/models.py

@@ -38,6 +38,8 @@ class QivipQuiz(models.Model):
     description = models.TextField(validators=[validate_description],max_length=200,blank=False, default="In dem Quiz geht es um ...")
     difficulty= models.CharField(max_length=13, choices=list(DIFFICULTY_VALUES.items()), default="nicht gesetzt", help_text="1: niedrigste Schwierigkeit und 5: höchste Schwierigkeit")
     credits=models.TextField(blank=True, editable=True)
+    average_rating = models.FloatField(default=3.0)
+    rating_count = models.IntegerField(default=0)
     def __str__(self):
 
         return self.name
@@ -47,7 +49,7 @@ class QivipQuiz(models.Model):
 # Create your models here.
 class QivipQuestion(models.Model):
     uuid = models.UUIDField(default=uuid.uuid4, editable=False, unique=True)
-    quiz_id = models.ForeignKey(QivipQuiz, on_delete=models.CASCADE, related_name='question')
+    quiz_id = models.ForeignKey(QivipQuiz, on_delete=models.CASCADE, related_name='questions')
     creation_date = models.DateTimeField(auto_now_add=True)
     update_date = models.DateTimeField(auto_now=True)
     data = models.TextField()
@@ -61,6 +63,28 @@ class Tag(models.Model):
     def __str__(self):
         return self.name
 
+class QuizRating(models.Model):
+    quiz = models.ForeignKey(QivipQuiz, on_delete=models.CASCADE, related_name='ratings')
+    participant_id = models.CharField(max_length=200)
+    rating = models.IntegerField(choices=[(i, str(i)) for i in range(1, 6)])
+    created_at = models.DateTimeField(auto_now_add=True)
+
+    class Meta:
+        unique_together = ('quiz', 'participant_id')
+
+    def save(self, *args, **kwargs):
+        is_new = self.pk is None
+        super().save(*args, **kwargs)
+
+        if is_new:
+            # Update quiz average rating
+            quiz = self.quiz
+            total_ratings = quiz.ratings.count()
+            avg_rating = quiz.ratings.aggregate(models.Avg('rating'))['rating__avg']
+            quiz.average_rating = round(avg_rating, 1) if avg_rating else 3.0
+            quiz.rating_count = total_ratings
+            quiz.save()
+
 class QuizCategory(models.Model):
     name = models.CharField(max_length=100, unique=True)
     description = models.TextField(blank=True, null=True)