views.py

    success_message = _("The group role has been assigned.")

    def get_default_success_url(self) -> str:
        return reverse("assigned_group_roles", args=[self.group.pk])

    def get_permission_object(self):
        self.group = get_object_or_404(Group, pk=self.kwargs.get("pk"))
        try:
            self.role = GroupRole.objects.get(pk=self.kwargs.get("role_pk"))
        except GroupRole.DoesNotExist:
            self.role = None
        return self.group

    def get_form_kwargs(self):
        kwargs = super().get_form_kwargs()
        kwargs["request"] = self.request
        kwargs["initial"] = {"role": self.role, "groups": [self.group]}
        return kwargs

    def get_context_data(self, **kwargs: Any) -> Dict[str, Any]:
        context = super().get_context_data(**kwargs)
        context["role"] = self.role
        context["group"] = self.group
        return context


@method_decorator(never_cache, name="dispatch")
class GroupRoleAssignmentEditView(PermissionRequiredMixin, SuccessNextMixin, AdvancedEditView):
    """Edit view for group role assignments."""

    model = GroupRoleAssignment
    form_class = GroupRoleAssignmentEditForm
    permission_required = "alsijil.edit_grouproleassignment"
    template_name = "alsijil/group_role/edit_assignment.html"
    success_message = _("The group role assignment has been saved.")

    def get_default_success_url(self) -> str:
        pk = self.object.groups.first().pk
        return reverse("assigned_group_roles", args=[pk])


@method_decorator(never_cache, "dispatch")
class GroupRoleAssignmentStopView(PermissionRequiredMixin, SuccessNextMixin, DetailView):
    model = GroupRoleAssignment
    permission_required = "alsijil.stop_grouproleassignment"

    def get_default_success_url(self) -> str:
        pk = self.object.groups.first().pk
        return reverse("assigned_group_roles", args=[pk])

    def get(self, request, *args, **kwargs):
        self.object = self.get_object()
        if not self.object.date_end:
            self.object.date_end = timezone.now().date()
            self.object.save()
            messages.success(request, _("The group role assignment has been stopped."))
        return redirect(self.get_success_url())


@method_decorator(never_cache, "dispatch")
class GroupRoleAssignmentDeleteView(
    PermissionRequiredMixin, RevisionMixin, SuccessNextMixin, AdvancedDeleteView
):
    """Delete view for group role assignments."""

    model = GroupRoleAssignment
    permission_required = "alsijil.delete_grouproleassignment"
    template_name = "core/pages/delete.html"
    success_message = _("The group role assignment has been deleted.")

    def get_default_success_url(self) -> str:
        pk = self.object.groups.first().pk
        return reverse("assigned_group_roles", args=[pk])