Model creation in autocommit mode.

[Florian Apolloner]

Hi there,

a fun issue came up on IRC today: Even when in autocommit mode, Django starts a transaction when doing Model.objects.create (https://github.com/django/django/blob/fb2964a4106b1282c4179b6fbbd0374f5be1ccac/django/db/models/base.py#L752). This makes some sense when there are parents to be saved also, but imo results in a rather high database roundtrip number for the simple case where there is a single model without inheritance. Does anyone know why we do this?

I've created a really simple patch https://github.com/django/django/pull/10448 which already (mostly) passes the testsuite.

Cheers,

Florian

[Tim Graham]

https://code.djangoproject.com/ticket/21171 looks like it should help.

[Florian Apolloner]

Jupp, that ticket at least shows that I am not the first one to stumble onto this :) Baring no objections I will at least try to fix it for the "easy" cases; seems like an easy win.