Django - How can you include annotated results in a serialized QuerySet?

Question

How can you include annotated results in a serialized QuerySet?

data = serializer.serialize(Books.objects.filter(publisher__id=id).annotate(num_books=Count(         


        

Answer 1

To get count from specific columns, you must declare them via values method

>>>> Books.objects.filter(publisher__id=id).values('').annotate(num_books=Count('related_books'))
[{'num_books': 1, '': X}]