django display message after POST form submit

Question

I have a page with a POST form, that have a action set to some url.
i.e assume this page url is /form_url/ : ..

The view in /sub

Answer 1

from django.contrib.messages.views import SuccessMessageMixin
from django.views.generic.edit import CreateView 
from myapp.models import Author

class AuthorCreate(SuccessMessageMixin, CreateView):
    model = Author
    success_url = '/success/'
    success_message = "%(name)s was created successfully"

https://docs.djangoproject.com/en/1.11/ref/contrib/messages/