BackendController::actionThemesettings PHP Method

    public function actionThemesettings()
    {
        if (Yii::app()->getRequest()->getIsPostRequest()) {
            if ($this->saveParamsSetting($this->yupe->coreModuleId, ['theme', 'backendTheme'])) {
                Yii::app()->getUser()->setFlash(yupe\widgets\YFlashMessages::SUCCESS_MESSAGE, Yii::t('YupeModule.yupe', 'Themes settings saved successfully!'));
                Yii::app()->getCache()->clear('yupe');
            } else {
                Yii::app()->getUser()->setFlash(yupe\widgets\YFlashMessages::ERROR_MESSAGE, Yii::t('YupeModule.yupe', 'There is an error when saving settings!'));
            }
            $this->redirect(['/yupe/backend/themesettings/']);
        }
        $settings = Settings::fetchModuleSettings('yupe', ['theme', 'backendTheme']);
        $noThemeValue = Yii::t('YupeModule.yupe', 'Theme is don\'t use');
        $theme = isset($settings['theme']) && $settings['theme']->param_value != '' ? $settings['theme']->param_value : $noThemeValue;
        $backendTheme = isset($settings['backendTheme']) && $settings['backendTheme']->param_value != '' ? $settings['backendTheme']->param_value : $noThemeValue;
        $this->render('themesettings', ['themes' => $this->yupe->getThemes(), 'theme' => $theme, 'backendThemes' => $this->yupe->getThemes(true), 'backendTheme' => $backendTheme]);
    }