夺命雷公狗TP3.2.3商城14-----无限极分类列表页

<?php
namespace Admin\Model;
use Think\Model;
class CateModel extends Model {
    protected $_validate = array(
        array(‘catename‘,‘require‘,‘分类名称不能为空‘,1)
    );
    //定义一个方法，获取树状的分类信息
    public function cateTree(){
        $cats = $this->order(‘id desc‘)->select();
        //通过tree里面的方法进行排序
        return $this->tree($cats);
    }
    public function tree($arr,$pid=0,$level=0){ //$level是自己定义出来的
        static $tree = array();
        foreach($arr as $v){
           if($v[‘pid‘]==$pid){
                //说明找到，保存
                $v[‘level‘] = $level;
                $tree[] = $v;
                //继续找
                $this -> tree($arr,$v[‘id‘],$level+1); //这里的cate_id表的id
            }
        }
        return $tree;
    }
        
}

public function lists(){
            $mod = D(‘cate‘);
            $data = $mod -> cateTree();
            $this -> assign(‘data‘,$data);
            $this -> display();
        }

<volist name="data" id="vo">
                        <tr>
                            <td>{$vo.id}</td>
                            <td title="">{$vo[‘level‘]|str_repeat="▲&nbsp;&nbsp;&nbsp;",###} {$vo[‘catename‘]}</td>
                            <td>
                                <a class="link-update" href="__MODULE__/admin/edit/id/{$vo.id}">修改</a>
                                <a class="link-del" href="__MODULE__/admin/del/id/{$vo.id}">删除</a>
                            </td>
                        </tr>
                        </volist>