How to make a subquery in Django to fetch all fields from a related model?

Question

Django

Let's say there is a post model in which there is a record field (this is the ManyToMany field). When I request Posts.objects.all().get(id=myid) I get the post object with the specified id. But the record field contains only the id of the records, but I need it to contain all the fields of this very record. I found the QuerySet select_related and prefeth_related methods on the Internet. As I understand it, you need to use the latter.

Answer 1

And she contains. It's just that the descriptor field (the same M2M connection) creates a request only if this field is accessed (or by explicitly calling prefetch_related). What is the actual task? Serialize data and send it via API? Use Django REST framework, it's made for this.