virtualenv --python 3.9 .venv source .venv/bin/activate
pip install django pip install djangorestframework
django-admin startproject tutorial . # Note the trailing '.' character cd tutorial django-admin startapp quickstart
In Django shell:
from tutorial.models import Company, Employee
c = Company(name="C1")
Employee(name="E1", company=Company.objects.get())
c.delete()The expected behaviour in this case is that the company is deleted, and the company attribute on the Employee instance is set to None.
What actually happens is that the Employee instance is deleted, as if the on-delete behaviour was set to Cascade.