Change attachment to file response

competition/views.py

@@ -290,7 +290,8 @@ def my_solution(self, request, pk=None):
             raise exceptions.NotFound(
                 detail='Zatiaľ nebolo nahraté žiadne riešenie')
         return FileResponse(
-            file, content_type='application/pdf')
+            file, content_type='application/pdf',
+        )
 
     @action(detail=True, url_path='corrected-solution')
     def corrected_solution(self, request, pk=None):
@@ -492,19 +493,25 @@ def remove_vote(self, request, pk=None):
     def download_solution(self, request, pk=None):
         """Stiahne riešenie"""
         solution = self.get_object()
-        response = HttpResponse(
-            solution.solution, content_type='application/pdf')
-        response['Content-Disposition'] = f'attachment; filename="{solution.solution}"'
-        return response
+        file = solution.solution
+        if not file:
+            raise exceptions.NotFound(
+                detail='Zatiaľ nebolo nahraté žiadne riešenie')
+        return FileResponse(
+            file, content_type='application/pdf',
+        )
 
     @action(methods=['get'], detail=True, url_path='download-corrected')
     def download_corrected(self, request, pk=None):
         """Stiahne opravenú verziu riešenia"""
         solution = self.get_object()
-        response = HttpResponse(
-            solution.solution, content_type='application/pdf')
-        response['Content-Disposition'] = f'attachment; filename="{solution.corrected_solution}"'
-        return response
+        file = solution.corrected_solution
+        if not file:
+            raise exceptions.NotFound(
+                detail='Zatiaľ nebolo nahraté žiadne riešenie')
+        return FileResponse(
+            file, content_type='application/pdf',
+        )
 
     @action(methods=['post'], detail=True,
             url_path='upload-solution-file',