Where to handle exceptions in Django admin?

Question

Django

Hello I'm new to django I have a question how to handle exceptions in the django admin panel? For example, there is a field with a unique parameter. When adding a field value with unique to the database again, an exception will occur django.db.IntegrityError Tell me where to catch and process this error?

Answer 1

Create a form for the model that will check the uniqueness of the combination of fields and throw a ValidationError if not unique