[Answered ]-User permissions for content in Django

first i recommend you to use django rest_framework.it has many good tools for that and you can run your site in anyplatform that you want.its just a advice not related to your question.
for your problem you have 2 ways first use the django document for underestanding what is the permissions model.with class Meta:

https://docs.djangoproject.com/en/1.10/ref/models/options/#permissions

second you can use the django app name : django-guardian

see the doc:
https://django-guardian.readthedocs.io/en/stable/overview.html