How to use the created objects from get_or_create method?

Question

Here if the object created I want to use this object in another model. How can I do it ? I suppose created returns the Boolean value so How can I get the created object ?

value, created = MyModel.objects.get_or_create(field1=field1, field2=field2)
if created:
     another_model_obj.manytomanyfield.add(created)

Answer 1

You should make use of the value , this is the object that is created:

value, created = MyModel.objects.get_or_create(field1=field1, field2=field2)
if created:
     another_model_obj.manytomanyfield.add()  # ← use value

The .get_or_create(…) [Django-doc] method returns a 2-tuple:

Returns a tuple of (object, created) , where object is the retrieved or created object and created is a boolean specifying whether a new object was created.

So the first line " unpacks " the 2-tuple into two variables value and created where value is the object that is either obtained (if it already exists), or created (if it did not yet exists).