language_main.php

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<?php

class Language_Main extends oxAdminDetails
{

    protected $_aLangData = null;

    protected $_aLangParams = null;

    protected $_aLanguagesUrls = null;

    protected $_aLanguagesSslUrls = null;

    public function render()
    {
        $myConfig = $this->getConfig();


        parent::render();

        $sOxId = $this->_aViewData["oxid"] = $this->getEditObjectId();
        //loading languages info from config
        $this->_aLangData = $this->_getLanguages();

        if ($sOxId != -1) {
            //checking if translations files exists
            $this->_checkLangTranslations($sOxId);
        }

        if ($sOxId != "-1" && isset($sOxId)) {
            $this->_aViewData["edit"] = $this->_getLanguageInfo($sOxId);
        }

        return "language_main.tpl";
    }

    public function save()
    {
        $myConfig = $this->getConfig();


        parent::save();

        $sOxId = $this->getEditObjectId();
        $aParams = oxRegistry::getConfig()->getRequestParameter("editval");

        if (!isset($aParams['active'])) {
            $aParams['active'] = 0;
        }

        if (!isset($aParams['default'])) {
            $aParams['default'] = false;
        }

        if (empty($aParams['sort'])) {
            $aParams['sort'] = '99999';
        }

        //loading languages info from config
        $this->_aLangData = $this->_getLanguages();
        //checking input errors
        if (!$this->_validateInput()) {
            return;
        }

        $blViewError = false;

        // if changed language abbervation, updating it for all arrays related with languages
        if ($sOxId != -1 && $sOxId != $aParams['abbr']) {
            // #0004850 preventing changing abbr for main language with base id = 0
            if ((int) $this->_aLangData['params'][$sOxId]['baseId'] == 0) {
                $oEx = oxNew("oxExceptionToDisplay");
                $oEx->setMessage('LANGUAGE_ABBRCHANGEMAINLANG_WARNING');
                oxRegistry::get("oxUtilsView")->addErrorToDisplay($oEx);
                $aParams['abbr'] = $sOxId;
            } else {
                $this->_updateAbbervation($sOxId, $aParams['abbr']);
                $sOxId = $aParams['abbr'];
                $this->setEditObjectId($sOxId);

                $blViewError = true;
            }
        }

        // if adding new language, setting lang id to abbervation
        if ($blNewLanguage = ($sOxId == -1)) {
            $sOxId = $aParams['abbr'];
            $this->_aLangData['params'][$sOxId]['baseId'] = $this->_getAvailableLangBaseId();
            $this->setEditObjectId($sOxId);
        }

        //updating language description
        $this->_aLangData['lang'][$sOxId] = $aParams['desc'];

        //updating language parameters
        $this->_aLangData['params'][$sOxId]['active'] = $aParams['active'];
        $this->_aLangData['params'][$sOxId]['default'] = $aParams['default'];
        $this->_aLangData['params'][$sOxId]['sort'] = $aParams['sort'];

        //if setting lang as default
        if ($aParams['default'] == '1') {
            $this->_setDefaultLang($sOxId);
        }

        //updating language urls
        $iBaseId = $this->_aLangData['params'][$sOxId]['baseId'];
        $this->_aLangData['urls'][$iBaseId] = $aParams['baseurl'];
        $this->_aLangData['sslUrls'][$iBaseId] = $aParams['basesslurl'];

        //sort parameters, urls and languages arrays by language base id
        $this->_sortLangArraysByBaseId();

        $this->_aViewData["updatelist"] = "1";

        //saving languages info
        $this->getConfig()->saveShopConfVar('aarr', 'aLanguageParams', $this->_aLangData['params']);
        $this->getConfig()->saveShopConfVar('aarr', 'aLanguages', $this->_aLangData['lang']);
        $this->getConfig()->saveShopConfVar('arr', 'aLanguageURLs', $this->_aLangData['urls']);
        $this->getConfig()->saveShopConfVar('arr', 'aLanguageSSLURLs', $this->_aLangData['sslUrls']);

        //checking if added language already has created multilang fields
        //with new base ID - if not, creating new fields
        if ($blNewLanguage) {
            if (!$this->_checkMultilangFieldsExistsInDb($sOxId)) {
                $this->_addNewMultilangFieldsToDb();
            } else {
                $blViewError = true;
            }
        }

        // show message for user to generate views
        if ($blViewError) {
            $oEx = oxNew('oxExceptionToDisplay');
            $oEx->setMessage('LANGUAGE_ERRORGENERATEVIEWS');
            oxRegistry::get("oxUtilsView")->addErrorToDisplay($oEx);
        }
    }

    protected function _getLanguageInfo($sOxId)
    {
        $sDefaultLang = $this->getConfig()->getConfigParam('sDefaultLang');

        $aLangData = $this->_aLangData['params'][$sOxId];
        $aLangData['abbr'] = $sOxId;
        $aLangData['desc'] = $this->_aLangData['lang'][$sOxId];
        $aLangData['baseurl'] = $this->_aLangData['urls'][$aLangData['baseId']];
        $aLangData['basesslurl'] = $this->_aLangData['sslUrls'][$aLangData['baseId']];
        $aLangData['default'] = ($this->_aLangData['params'][$sOxId]["baseId"] == $sDefaultLang) ? true : false;

        return $aLangData;
    }

    protected function _setLanguages($aLangData)
    {
        $this->_aLangData = $aLangData;
    }

    protected function _getLanguages()
    {
        $aLangData['params'] = $this->getConfig()->getConfigParam('aLanguageParams');
        $aLangData['lang'] = $this->getConfig()->getConfigParam('aLanguages');
        $aLangData['urls'] = $this->getConfig()->getConfigParam('aLanguageURLs');
        $aLangData['sslUrls'] = $this->getConfig()->getConfigParam('aLanguageSSLURLs');

        // empty languages parameters array - creating new one with default values
        if (!is_array($aLangData['params'])) {
            $aLangData['params'] = $this->_assignDefaultLangParams($aLangData['lang']);
        }

        return $aLangData;
    }

    protected function _updateAbbervation($sOldId, $sNewId)
    {
        foreach (array_keys($this->_aLangData) as $sTypeKey) {

            if (is_array($this->_aLangData[$sTypeKey]) && count($this->_aLangData[$sTypeKey]) > 0) {

                if ($sTypeKey == 'urls' || $sTypeKey == 'sslUrls') {
                    continue;
                }

                $aKeys = array_keys($this->_aLangData[$sTypeKey]);
                $aValues = array_values($this->_aLangData[$sTypeKey]);
                //find and replace key
                $iReplaceId = array_search($sOldId, $aKeys);
                $aKeys[$iReplaceId] = $sNewId;

                $this->_aLangData[$sTypeKey] = array_combine($aKeys, $aValues);
            }
        }
    }

    protected function _sortLangArraysByBaseId()
    {
        $aUrls = array();
        $aSslUrls = array();
        $aLanguages = array();

        uasort($this->_aLangData['params'], array($this, '_sortLangParamsByBaseIdCallback'));

        foreach ($this->_aLangData['params'] as $sAbbr => $aParams) {
            $iId = (int) $aParams['baseId'];
            $aUrls[$iId] = $this->_aLangData['urls'][$iId];
            $aSslUrls[$iId] = $this->_aLangData['sslUrls'][$iId];
            $aLanguages[$sAbbr] = $this->_aLangData['lang'][$sAbbr];
        }

        $this->_aLangData['lang'] = $aLanguages;
        $this->_aLangData['urls'] = $aUrls;
        $this->_aLangData['sslUrls'] = $aSslUrls;
    }

    protected function _assignDefaultLangParams($aLanguages)
    {
        $aParams = array();
        $iBaseId = 0;

        foreach (array_keys($aLanguages) as $sOxId) {
            $aParams[$sOxId]['baseId'] = $iBaseId;
            $aParams[$sOxId]['active'] = 1;
            $aParams[$sOxId]['sort'] = $iBaseId + 1;

            $iBaseId++;
        }

        return $aParams;
    }

    protected function _setDefaultLang($sOxId)
    {
        $sDefaultId = $this->_aLangData['params'][$sOxId]['baseId'];
        $this->getConfig()->saveShopConfVar('str', 'sDefaultLang', $sDefaultId);
    }

    protected function _getAvailableLangBaseId()
    {
        $aBaseId = array();
        foreach ($this->_aLangData['params'] as $aLang) {
            $aBaseId[] = $aLang['baseId'];
        }

        $iNewId = 0;
        sort($aBaseId);
        $iTotal = count($aBaseId);

        //getting first available id
        while ($iNewId <= $iTotal) {
            if ($iNewId !== $aBaseId[$iNewId]) {
                break;
            }
            $iNewId++;
        }

        return $iNewId;
    }

    protected function _checkLangTranslations($sOxId)
    {
        $myConfig = $this->getConfig();

        $sDir = dirname($myConfig->getTranslationsDir('lang.php', $sOxId));

        if (empty($sDir)) {
            $oEx = oxNew("oxExceptionToDisplay");
            $oEx->setMessage('LANGUAGE_NOTRANSLATIONS_WARNING');
            oxRegistry::get("oxUtilsView")->addErrorToDisplay($oEx);
        }
    }

    protected function _checkMultilangFieldsExistsInDb($sOxId)
    {
        $iBaseId = $this->_aLangData['params'][$sOxId]['baseId'];
        $sTable = getLangTableName('oxarticles', $iBaseId);
        $sColumn = 'oxtitle' . oxRegistry::getLang()->getLanguageTag($iBaseId);

        $oDbMetadata = oxNew('oxDbMetaDataHandler');

        return $oDbMetadata->tableExists($sTable) && $oDbMetadata->fieldExists($sColumn, $sTable);
    }

    protected function _addNewMultilangFieldsToDb()
    {
        //creating new multilanguage fields with new id over whole DB
        oxDb::getDb()->startTransaction();

        $oDbMeta = oxNew("oxDbMetaDataHandler");

        try {
            $oDbMeta->addNewLangToDb();
        } catch (Exception $oEx) {
            // if exception, rollBack everything
            oxDb::getDb()->rollbackTransaction();

            //show warning
            echo $oEx->getMessage();
            $oEx = oxNew("oxExceptionToDisplay");
            $oEx->setMessage('LANGUAGE_ERROR_ADDING_MULTILANG_FIELDS');
            oxRegistry::get("oxUtilsView")->addErrorToDisplay($oEx);

            return;
        }

        oxDb::getDb()->commitTransaction();
    }

    protected function _checkLangExists($sAbbr)
    {
        $myConfig = $this->getConfig();
        $aAbbrs = array_keys($this->_aLangData['lang']);

        if (in_array($sAbbr, $aAbbrs)) {
            return true;
        }

        return false;
    }

    protected function _sortLangParamsByBaseIdCallback($oLang1, $oLang2)
    {
        return ($oLang1['baseId'] < $oLang2['baseId']) ? -1 : 1;
    }

    protected function _validateInput()
    {
        $blResult = true;

        $sOxId = $this->getEditObjectId();
        $aParams = oxRegistry::getConfig()->getRequestParameter("editval");

        // if creating new language, checking if language already exists with
        // entered language abbervation
        if ($sOxId == -1) {
            if ($this->_checkLangExists($aParams['abbr'])) {
                $oEx = oxNew('oxExceptionToDisplay');
                $oEx->setMessage('LANGUAGE_ALREADYEXISTS_ERROR');
                oxRegistry::get("oxUtilsView")->addErrorToDisplay($oEx);
                $blResult = false;
            }
        }

        // checking if language name is not empty
        if (empty($aParams['desc'])) {
            $oEx = oxNew('oxExceptionToDisplay');
            $oEx->setMessage('LANGUAGE_EMPTYLANGUAGENAME_ERROR');
            oxRegistry::get("oxUtilsView")->addErrorToDisplay($oEx);
            $blResult = false;
        }

        return $blResult;
    }
}