from django.http import HttpResponseForbidden from django.shortcuts import get_object_or_404 from .models import Backup def backup_view_permission(old_fuction): def new_function(request, pk, *args, **kwargs): backup = get_object_or_404(Backup, pk=pk) user = request.user if user.has_perm("customers.view_customer", backup.computer.customer): return old_fuction(request, pk) else: return HttpResponseForbidden("You're not allowed to access this device.") return new_function