Method getStoreId

/**
 * Method to get a store id based on model configuration state.
 *
 * This is necessary because the model is used by the component and
 * different modules that might need different sets of data or different
 * ordering requirements.
 *
 * @param   string  $id  A prefix for the store id.
 *
 * @return  string  A store id.
 *
 * @since   1.6
 */
protected function getStoreId($id = '')
{
    // Compile the store id.
    return md5($id);
}