debug lesson

apps/course/serializers/lesson.py

@@ -9,10 +9,27 @@ from apps.quiz.serializers import QuizListSerializer
 class LessonSerializer(serializers.ModelSerializer):
     is_complated = serializers.SerializerMethodField()
     quizs = serializers.SerializerMethodField()    
+    permission = serializers.SerializerMethodField()  
     
     class Meta:
         model = Lesson
-        fields = ['id', 'title', 'priority', 'is_active', 'duration', 'content_type', 'content_file', 'video_link', 'is_complated', 'quizs']
+        fields = ['id', 'title', 'priority', 'is_active', 'permission','duration', 'content_type', 'content_file', 'video_link', 'is_complated', 'quizs']
+        
+    def get_permission(self, obj):
+        if student := self._get_authenticated_user():
+            if not self._is_participant(student, obj.course):
+                return False
+            return True            
+        return False
+    
+    def _get_authenticated_user(self):
+        """Helper method to retrieve the authenticated user from the context."""
+        request = self.context.get('request')
+        return request.user if request and request.user.is_authenticated else None
+
+    def _is_participant(self, student, course):
+        """Helper method to check if a student is a participant in the given course."""
+        return Participant.objects.filter(student=student, course=course).exists()
 
     def get_is_complated(self, obj):
         request = self.context.get('request')

apps/course/views/lesson.py

@@ -28,7 +28,7 @@ class LessonListView(ListAPIView):
     
     def get_queryset(self):
         course_slug = self.kwargs.get('slug')
-        course = get_object_or_404(Course, )
+        course = get_object_or_404(Course, slug=course_slug)
         course = Course.objects.filter(slug=course_slug).first()
         if not course:
             raise AppAPIException({"message": "course not found"}, status_code=status.HTTP_404_NOT_FOUND)