public function appendColumnSizesToPalette($dataContainer)
    {
        $model = \Database::getInstance()
            ->prepare('SELECT * FROM tl_columnset WHERE id=?')
            ->limit(1)
            ->execute($dataContainer->id);

        $sizes = array_merge(deserialize($model->sizes, true));

        foreach ($sizes as $size) {
            $field = 'columnset_' . $size;

            \MetaPalettes::appendFields('tl_columnset', 'columnset', array($field));
        }
    }