日期:2014-05-17  浏览次数:20441 次

ThinkPHP学习笔记(十一)自动填充一个无限极分类

创建数据库表:tb_cate:id,name,pid,path

action

<?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());
		}
	}
}
?>

html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title></title>
</head>
<body>
<form action="__URL__/add" method="post">
父级栏目:<select name="pid">
			<option value="0">根</option>
			<volist name="alist" id="vo">
				<option value="<!--{$vo['id']}-->">
					<php>
						for($i=0;$i<$vo['count'];$i++){
							echo '-';
						}
					</php>
					<!--{$vo['name']}-->
				</option>
			</volist>
		</select>
新栏目名:<input type="text" name="name"><br/>
		<input type="submit" value="添加栏目"><br/>
</form>

</body>
</html>

cateModel

<?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;
		}
	}
?>