rules

import rules from rules import Predicate from django.conf import settings from django.apps import apps from django.http import HttpResponse from django.views.generic import View settings.configure( INSTALLED_APPS=['django.contrib.auth', 'django.contrib.contenttypes', 'rules'], SECRET_KEY='a-very-secret-key', TEMPLATES=[{'BACKEND': 'django.template.backends.django.DjangoTemplates', 'OPTIONS': {'string_if_invalid': 'INVALID'}}], DEBUG=True ) apps.populate(settings.INSTALLED_APPS) # 1. Define a simple predicate is_staff = Predicate(lambda u: u.is_staff) # 2. Add the rule with a name rules.add_rule('can_access_staff_area', is_staff) # 3. Use it in a Django View from rules.contrib.views import PermissionsRequiredMixin from django.contrib.auth.models import User class StaffAreaView(PermissionsRequiredMixin, View): permission_required = 'can_access_staff_area' def get(self, request): return HttpResponse("Welcome, staff member!") # Example of creating a mock user and checking permission (for demonstration) mock_user_staff = User(username='staffuser', is_staff=True) mock_user_non_staff = User(username='regularuser', is_staff=False) # This would typically happen inside a request context can_access_staff_true = rules.test_rule('can_access_staff_area', mock_user_staff) can_access_staff_false = rules.test_rule('can_access_staff_area', mock_user_non_staff) assert can_access_staff_true is True assert can_access_staff_false is False print(f"Staff user can access staff area: {can_access_staff_true}") print(f"Regular user can access staff area: {can_access_staff_false}")