public function delete(ThumbnailRequest $request)
    {
        $crudeName = $request->input('crudeName');
        $crude = CrudeInstance::get($crudeName);
        $id = $request->input('model_id');
        $column = $request->input('model_column');

        $model = $crude->deleteThumbnailByIdAndColumn($id, $column);

        return ['model' => $model];
    }