source/Application/Controller/Admin/LanguageMain.php
protected function _setDefaultLang($sOxId)
    {
        $sDefaultId = $this->_aLangData['params'][$sOxId]['baseId'];
        \OxidEsales\Eshop\Core\Registry::getConfig()->saveShopConfVar('str', 'sDefaultLang', $sDefaultId);
    }
protected function _setDefaultLang($sOxId)
    {
        $sDefaultId = $this->_aLangData['params'][$sOxId]['baseId'];
        \OxidEsales\Eshop\Core\Registry::getConfig()->saveShopConfVar('str', 'sDefaultLang', $sDefaultId);
    }
protected function _setDefaultLang ( $ sOxId ) { $ sDefaultId = $ this -> _aLangData [ 'params' ] [ $ sOxId ] [ 'baseId' ] ; \ OxidEsales \ Eshop \ Core \ Registry :: getConfig ( ) -> saveShopConfVar ( 'str' , 'sDefaultLang' , $ sDefaultId ) ; }
Sets default language base ID to config var 'sDefaultLang'

@param string $sOxId language abbervation
Sets default language base ID to config var sDefaultLang