<?php
class Tx_xxx_Controller_AbstractController extends Tx_Extbase_MVC_Controller_ActionController {

    /**
     * Session storage key used
     * @var string
     */
    protected $sessionDataStorageKey = 'tx_xxx';

    /**
     * The session data container
     * @var array
     */
    protected $sessionData = array();

    protected function getExtConf() {
        return unserialize($GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf']['xxx']);
    }

    public function initializeAction() {
        $this->loadSessionData();
                if(!$this->sessionData['productcategory']){
                    $this->sessionData['productcategory'] = 1;
                    $this->storeSessionData();
                }
    }

    /**
     * Loads data from session
     * @return void
     */
    protected function loadSessionData() {
        $GLOBALS['TSFE']->fe_user->fetchSessionData();
        $this->sessionData = $GLOBALS['TSFE']->fe_user->getKey('ses', $this->sessionDataStorageKey);
    }

    /**
     * Stores data to session
     * @return void
     */
    protected function storeSessionData() {
        $GLOBALS['TSFE']->fe_user->setKey('ses', $this->sessionDataStorageKey, $this->sessionData);
        $GLOBALS['TSFE']->fe_user->storeSessionData();
    }

    /**
     * removes all date from session
     * @return void
     */
    protected function clearSessionData() {
        $this->sessionData = array();
        $GLOBALS['TSFE']->fe_user->setKey('ses', $this->sessionDataStorageKey, $this->sessionData);
        $GLOBALS['TSFE']->fe_user->storeSessionData();
    }

    /**
     * fetches the cookie of a given name and handles magic quotes
     *
     * @param string $cookieName
     */
    protected static function getCookie($cookieName) {
        $cookie = $_COOKIE[$cookieName];
        if ($cookie && get_magic_quotes_gpc()) {
            $cookie = stripslashes($cookie);
        }
        return $cookie;
    }
}
?>