How to do "insert if not exist else update" with mongoengine?

python django mongodb mongoengine

Note that get_or_create is now scheduled to be deprecated, because with no transaction support in MongoDB it cannot ensure atomicity.

The preferred way is update with upsert:

Location.objects(user_id=user_id).update_one(set__point=point, upsert=True)

More on upserts on the MongoDB documentation.

python django mongodb mongoengine

There is a new way to do it since version 0.9 (explained here):

location = Location.objects(user_id=user_id).modify(upsert=True, new=True, set__point=point)

It returns the created or updated object.

python django mongodb mongoengine

this is what I came up with:

location = Location.objects.get_or_create(user_id=user_id)[0]  location.point = point  location.save()

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