How to construct nested QuerySet with django ORM?

It's too inconvenient to paste the code in the email, I'll just copy a StackOverFlow link. https://stackoverflow.com/questions/72251670/how-to-construct-nested-queryset-with-django-orm Ignoring the `DRF` part, I want to construct an `object` like this, how to do it? -- You received this messa

How to display models.full_clean() ValidationError in django admin?

Copy from: https://stackoverflow.com/questions/71231549/how-to-display-models-full-clean-validationerror-in-django-admin Question: https://docs.djangoproject.com/en/4.0/ref/models/instances/#validating-objects from django.core.exceptions import ValidationError try: article.full_clean

How can I let BinaryField edit by hex str?

I rewrited SelfModel.save() to do that. But I feel it wasn't a good way. So , I tried to create a CustomField to do this , but It looks like some wrong. It can't render a hex str in my url , how can I fix it ? should I rewrite get_db_prep_value() or get_lookups() ? *class BinaryHex