Update model django through kwargs

Question

How can i pass a dict which contain fields to update a Django model? This is not to create an object, but to update it.

example:

obj = Object.objects.cre         


        

Answer 1

If you know you want to create it:

Book.objects.create(**fields)

Assuming you need to check for an existing instance, you can find it with get or create:

instance, created = Book.objects.get_or_create(slug=slug, defaults=fields)
if not created:
    for attr, value in fields.iteritems(): 
        setattr(instance, attr, value)
    instance.save()

As mentioned in another answer, you can also use the update function on the queryset manager, but i believe that will not send any signals out (which may not matter to you if you aren't using them). However, you probably shouldn't use it to alter a single object:

Book.objects.filter(id=id).update(**fields)