function test(){
import('ORG.Util.Page');
$message=M('UserMessage');
$condition['origin']=array('eq',$_POST['origin']);
$condition['tocity']=array('eq',$_POST['tocity']);
$search_time = date("Y-m-d H:i",strtotime($_POST['traveldate']));
$condition['traveldate']=array('egt',$search_time);
$count=$message->where($condition)->count();
$page=new Page($count,6);
$list = $message->where($condition)->order('traveldate')
->limit($page->firstRow.','.$page->listRows)->select();
foreach($condition as $key=>$val) {
$page->parameter .= "$key=".urlencode($val).'&';
}
$show = $page->show();// 分页显示输出
echo $message->getLastSql();
$this->assign('page',$show);// 赋值分页输出
$this->assign('list',$list);// 赋值数据集
$this->display(); // 输出模板
}

这代码 到了第二页就不能传递$condition 怎么破？