Atomic Updates

Django’s support for updates (using the update() method) can be used to run atomic updates against a single or multiple documents:

Post.objects.filter(...).update(title='Everything is the same')

results in a update() query that uses the atomic $set operator to update the title field:

.update(..., {'$set': {'title': 'Everything is the same'}})

It’s also possible to use F() objects which are translated into $inc operations. For example,


is translated to:

.update(..., {'$inc': {'visits': 1}})