set ModelLog transactions as atomic

sync/models/model_log.py

@@ -24,6 +24,9 @@ class ModelLog(models.Model):
     device_id = models.CharField(max_length=200, blank=True, null=True)
     count = models.IntegerField(default=0)
 
+    class Meta:
+        ordering = ['-date']
+
     def formatted_time(self):
         return self.date.strftime('%H:%M:%S.%f')
 

sync/signals.py

@@ -120,15 +120,16 @@ def save_model_log_if_possible(instance, signal, created, device_id):
 
 def save_model_log(users, model_operation, model_name, model_id, store_id, device_id):
 
-    model_log = ModelLog()
+    with transaction.atomic():
-    model_log.operation = model_operation
+        model_log = ModelLog()
-    model_log.model_name = model_name
+        model_log.operation = model_operation
-    model_log.model_id = model_id
+        model_log.model_name = model_name
-    model_log.store_id = store_id
+        model_log.model_id = model_id
-    model_log.device_id = device_id
+        model_log.store_id = store_id
-    # model_log.date = timezone.now()
+        model_log.device_id = device_id
-    model_log.save()
+        # model_log.date = timezone.now()
-    model_log.users.set(users)
+        model_log.save()
+        model_log.users.set(users)
 
         # print(f'ML users = {len(users)}')
     # existing_log = ModelLog.objects.filter(users__in=users, model_id=model_id, operation=model_operation).first()