public function upload(ThumbnailRequest $request)
    {
        $crudeName = $request->input('crudeName');
        $crude = CrudeInstance::get($crudeName);
        $column = $request->input('columnName');
        $file = $request->file()['file'];

        $id = $request->input('modelId');
        $model = $crude->uploadThumbnailByIdAndColumn($id, $column, $file);

        return ['success' => true, 'model' => $model];
    }