differentiate updates from inserts to allow for updates to use the syntax

Mark Unsworth · Mark Unsworth · commit 568dd07a98f9 · 2015-06-09T15:45:18.000+01:00
diff --git a/django_mongodb_engine/base.py b/django_mongodb_engine/base.py
@@ -38,6 +38,7 @@
 class DatabaseFeatures(NonrelDatabaseFeatures):
     supports_microsecond_precision = False
     supports_long_model_names = False
+    distinguishes_insert_from_update = True
 
 
 class DatabaseOperations(NonrelDatabaseOperations):
