copy database objects into another- django

Question

I know how to copy python object in to another as,

new_obj.__dict__ = original_obj.__dict__.copy()

But while playing with database, it overwrite the old object with new one.

I know the old_obj is overwritten because of same id.

So what I tried is , get latest id from database and add 1 to it as follows,

obj = Author.objects.latest('id')
put_id = obj.id + 1

And then use this put_id for saving another object.

Is this is right approach to save copied object to database or any other way to achieve this automatically ?

possible duplicate of How do I clone a Django model instance object and save it to the database? — rnevius
– rnevius, Commented Jun 1, 2015 at 14:53

Othman · Accepted Answer · 2015-06-01 14:54:58Z

4

You just have to make the primary key None in order to get a new primary key for the new object

new_object = ModelName.objects.get(pk= #OLD_OBJECT_PK )
new_object.pk = None
new_object.save()

answered Jun 1, 2015 at 14:54

Othman

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