error :object can't be deleted because its id attribute is set to None

Question

Trying to Delete an object using shell in django. How do i delete the object say "Ron"?

I use the following command:

t.delete('Ron')

It looks to me that you *never* saved it in the first place. — Willem Van Onsem, Sep 06 '18 at 10:00
I suspect OP is doing `t = Model(name="Ron")` and thinking this is doing a get rather than instantiating a new object. — Daniel Roseman, Sep 06 '18 at 10:52

score 10 · Accepted Answer · answered Sep 06 '18 at 10:01

The error:

object can't be deleted because its id attribute is set to None

Suggests that you either never saved the object t in the first place, or you changed the primary key (here id) to None manually.

If you have a single object you can perform a .delete() on the object, for example:

my_obj = Model.objects.get(name='Ron')
my_obj.delete()

You should not add extra parameters to delete except for using and keep_parents, as specified in the documentation for Model.delete()

Or you can delete the objects with a .filter(..) statement, like:

Model.objects.filter(name='Ron').delete()

this will delete all Model objects with name 'Ron'.

this happened to me with [djongo](https://github.com/nesdis/djongo) which doesnt always create the primary key automatically — citynorman, Apr 24 '19 at 14:48

1 Answers1