see if atomic transactions fixes case uploads

atlas/api.py

@@ -3,6 +3,8 @@ from typing import List, Tuple
 from django.shortcuts import get_object_or_404
 from ninja import ModelSchema, Router, Schema, Field
 
+from django.db import transaction
+
 # from .decorators import user_is_author_or_rapid_checker
 from django.core.exceptions import PermissionDenied
 import pydicom
@@ -123,7 +125,8 @@ def import_dicoms_helper(request, case_id: int | None = None):
 
         # Check if series with the id already exists (in which case we just add to htat)
         try:
-            series = Series.objects.get(series_instance_uid=tags["SeriesInstanceUID"])
+            with transaction.atomic():
+                series = Series.objects.get(series_instance_uid=tags["SeriesInstanceUID"])
         except Series.DoesNotExist:
             series = Series(
                 modality=modality,
@@ -240,7 +243,8 @@ def check_images_hashes(request, hashes: List[str]):
     for hash in hashes:
         try:
             # TOOD also check against uncategorised dicoms?
-            series_image = SeriesImage.objects.get(image_blake3_hash=hash)
+            with transaction.atomic():
+                series_image = SeriesImage.objects.get(image_blake3_hash=hash)
             data = {
                 "id": series_image.pk,
                 "url": series_image.series.get_absolute_url(),