paster

<?php
class XxxPeer extends BaseXxxPeer
{
	/**
	 * generate permalink and try uniqueness, if not it adds number
	 * 
	 * @param string $text
	 * @return string
	 */
	public static function tryPermalink($text = false) {
		if($text) {
			$uri = myString::urilize($text);
			$c = new Criteria;
			$c->add(self::PERMALINK, $uri);
			if(self::doCount($c) > 0) {
				return $uri.'-'.(self::getCount()+1);
			} else {
				return $uri;
			}
		} else {
			return 'kategorie-'.(self::getCount()+1);
		}
	}

	/**
     * return count of items
     * 
     * @return int
     */
	public static function getCount() {
		return self::doCount(new Criteria());
	}

	/**
	 * retrieve object by permalink
	 * 
	 * @param string $permalink
	 * @return object
	 */
	public static function retrieveByPermalink($permalink) {
		$c = new Criteria();
		$c->add(self::PERMALINK, $permalink);
		
		return self::doSelectOne($c);
	}
}
?>

podrizena classa
----------------

	public function save($con = null) {
		if($this->getPermalink() != myString::urilize($this->getName()))
			$this->setPermalink(ItemPeer::tryPermalink($this->getName()));
		$ret = parent::save($con);
		return $ret;
	}