/**(V3.8 新增)(V6.7 更新)
 * 设置路由映射
 * @param string $m 模块名
 */
function set_mapping($m) {
	$siteid = get_siteid();
    $site_mapping = 'site_mapping_'.$m.'_'.$siteid;
    if(!$mapping = getcache($site_mapping)){
        $data = D('category')->field('catid,`type`,catdir,arrchildid')->where(array('siteid'=>$siteid,'`type`<' => 2))->order('catid ASC')->select();
        $mapping = array();
        foreach($data as $val){
            $mapping['^'.str_replace('/', '\/', $val['catdir']).'$'] = $m.'/index/lists/catid/'.$val['catid'];
            if($val['type']) continue;  
            $mapping['^'.str_replace('/', '\/', $val['catdir']).'\/list_(\d+)$'] = $m.'/index/lists/catid/'.$val['catid'].'/page/$1';
            if(strpos($val['arrchildid'], ',')) continue; 
            $mapping['^'.str_replace('/', '\/', $val['catdir']).'\/(\d+)$'] = $m.'/index/show/catid/'.$val['catid'].'/id/$1';             
        }
        //结合自定义URL规则
        $route_rules = get_urlrule();
        if(!empty($route_rules)) $mapping = array_merge($route_rules, $mapping); 
        setcache($site_mapping, $mapping);
    }
    return array_merge($mapping, C('route_rules'));
}