is_authenticated ReadOnly example django

Here is an example of using the is_authenticated attribute in a Django view to only allow authenticated users to access a certain page, and to only allow them to view the page (not make any changes):

from django.shortcuts import render
from django.contrib.auth.decorators import login_required

@login_required(login_url='/login/')
def my_view(request):
    # This view requires authentication to access
    # and only allows read-only access

    # your view logic here

    return render(request, 'my_template.html', context)

In this example, the @login_required decorator is used to ensure that only authenticated users can access the view. If a user who is not authenticated tries to access the view, they will be redirected to the login page (specified by the login_url argument).

The is_authenticated attribute is a built-in attribute of the User model in Django that is set to True if the user is authenticated, and False otherwise. By using the @login_required decorator, we can be sure that the is_authenticated attribute will always be True for the request.user object inside the view.