theme_config.php

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<?php

class Theme_Config extends Shop_Config
{
    protected $_sTheme = 'shop_config.tpl';

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

        $sTheme  = $this->_sTheme = $this->getEditObjectId();
        $sShopId = $myConfig->getShopId();

        if (!isset( $sTheme ) ) {
            $sTheme = $this->_sTheme = $this->getConfig()->getConfigParam('sTheme');
        }

        $oTheme = oxNew('oxTheme');
        if ($oTheme->load($sTheme)) {
            $this->_aViewData["oTheme"] =  $oTheme;

            try {
                oxLang::getInstance()->registerAdditionalLangFile(
                    $this->_getTemplateOptionsLanguageFile()
                );

                $aDbVariables = $this->_loadConfVars($sShopId, $this->_getModuleForConfigVars());
                $this->_aViewData["var_constraints"] = $aDbVariables['constraints'];
                $this->_aViewData["var_grouping"]    = $aDbVariables['grouping'];
                foreach ($this->_aConfParams as $sType => $sParam) {
                    $this->_aViewData[$sParam] = $aDbVariables['vars'][$sType];
                }
            } catch (oxException $oEx) {
                oxUtilsView::getInstance()->addErrorToDisplay( $oEx );
                $oEx->debugOut();
            }
        } else {
            oxUtilsView::getInstance()->addErrorToDisplay( new oxException('EXCEPTION_THEME_NOT_LOADED') );
        }
        return 'theme_config.tpl';
    }


    public function setTheme()
    {
        $sTheme = $this->getEditObjectId();
        $oTheme = oxNew('oxtheme');
        $oTheme->setTheme($sTheme);
    }

    protected function _getModuleForConfigVars()
    {
        return oxConfig::OXMODULE_THEME_PREFIX.$this->_sTheme;
    }

    protected function _getTemplateOptionsLanguageFile()
    {
        $iLang = oxLang::getInstance()->getTplLanguage();
        $sFile = $this->getConfig()->getDir(
                "theme_options.php",
                oxLang::getInstance()->getLanguageAbbr( $iLang ),
                false,
                $iLang,
                null,
                $this->_sTheme,
                true,
                true
        );
        if (!$sFile) {
            $oErr = new oxFileException('EXCEPTION_FILENOTFOUND');
            $oErr->setFileName('theme_options.php for the theme "'.$this->_sTheme.'"');
            throw $oErr;
        }
        return $sFile;
    }

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

        oxAdminDetails::save();

        $sTheme  = $this->_sTheme = $this->getEditObjectId();
        $sShopId = $myConfig->getShopId();

        $sModule = $this->_getModuleForConfigVars();

        foreach ($this->_aConfParams as $sType => $sParam) {
            $aConfVars = oxConfig::getParameter($sParam);
            if (is_array($aConfVars)) {
                foreach ( $aConfVars as $sName => $sValue ) {
                    $myConfig->saveShopConfVar(
                            $sType,
                            $sName,
                            $this->_serializeConfVar($sType, $sName, $sValue),
                            $sShopId,
                            $sModule
                    );
                }
            }
        }
    }
}