ThinkPHP学习札记（十一）自动填充一个无限极分类

<?php /**
 * ThinkPHP中的
 * 自动完成(无限极分类)
 * 		用户输入的字段并不是用户手动填写的
 *
 */
class AutoCateAction extends Action{
	public function index(){
		$cate=M('Cate');
		$list=$cate->field("id,name,pid,path,concat(path,'-',id) as bpath")->order("bpath")->select();
		foreach ($list as $key=>$value){
			$list[$key]['count']=count(explode('-', $value['bpath']));
		}
		$this->assign('alist',$list);
		$this->display();
	}
	function add(){
		//经过自定义模型
		$cate=D('Cate');
		if ($vo=$cate->create()) {
			dump($vo);
			if ($cate->add()){
				$this->success("注册成功");
			}else{
				$this->error($cate->getError());
			}
		}else{
			$this->error($cate->getError());
		}
	}
}
?>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title></title>

<?php class CateModel extends Model{
		protected $_auto=array(
			array('path','filldata',3,'callback'),
		);
		function filldata(){
			//因为在model当中，所以不用new，直接用this就可以了
			$pid=isset($_POST['pid'])?(int)$_POST['pid']:0;
			if ($pid==0)return 0;
			$pcate=$this->where('id='.$pid)->find();
				$path=$pcate['path'].'-'.$pcate['id'];
			return $path;
		}
	}
?>