messages.views.SuccessMessageMixin

class views.SuccessMessageMixin

Adds a success message attribute to FormView based classes

get_success_message(cleaned_data): cleaned_data is the cleaned data from the form which is used for string formatting

Example views.py:

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"

The cleaned data from the form is available for string interpolation using the %(field_name)s syntax. For ModelForms, if you need access to fields from the saved object override the get_success_message() method.

Example views.py for ModelForms:

from django.contrib.messages.views import SuccessMessageMixin
from django.views.generic.edit import CreateView
from myapp.models import ComplicatedModel
 
class ComplicatedCreate(SuccessMessageMixin, CreateView):
    model = ComplicatedModel
    success_url = '/success/'
    success_message = "%(calculated_field)s was created successfully"
 
    def get_success_message(self, cleaned_data):
        return self.success_message % dict(
            cleaned_data,
            calculated_field=self.object.calculated_field,
        )

Links:

https://docs.djangoproject.com/en/1.10/ref/contrib/messages/#django.contrib.messages.views.SuccessMessageMixin

doc_Django

2025-01-10 15:47:30

Comments