public function graph()
    {
        $nodes = Scaffoldinterface::all()->map(function (Scaffoldinterface $entity) {
            return ['id' => $entity->id, 'label' => $entity->tablename];
        })->toJson();

        $edges = Relation::all()->map(function (Relation $relation) {
            return ['from' => $relation->scaffoldinterface_id, 'to' => $relation->to, 'label' => $relation->having];
        })->toJson();

        return view('scaffold-interface::graph', compact('nodes', 'edges'));
    }