<?php
	class AppModel extends Model {

		function createSlug ($string, $id=null) {
			$slug = Inflector::slug ($string,'-');
			$slug = low ($slug);
			$i = 0;
			$params = array ();
			$params ['conditions']= array();
			$params ['conditions'][$this->name.'.slug']= $slug;
			if (!is_null($id)) {
				$params ['conditions']['not'] = array($this->name.'.id'=>$id);
			}
			while (count($this->find ('all',$params))) {
				if (!preg_match ('/-{1}[0-9]+$/', $slug )) {
					$slug .= '-' . ++$i;
				} else {
					$slug = preg_replace ('/[0-9]+$/', ++$i, $slug );
				}
				$params ['conditions'][$this->name . '.slug']= $slug;
			}
			return $slug;
		}
	}
?>