ThinkPHP自动填充实现无限级分类的方法
这篇文章主要介绍了ThinkPHP自动填充实现无限级分类的方法,是ThinkPHP项目开发中非常实用的一个技巧,需要的朋友可以参考下
本文实例展示了ThinkPHP自动填充实现无限级分类的方法,是ThinkPHP常用功能之一,非常具有实用价值。现将完整实例分享给大家,供大家参考。具体实现步骤如下:
表aoli_cate如下图所示:
一、action部分:
aoli/Home/Lib/Action/CataAction.class.php文件如下:
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<?php class CateAction extends Action{ 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(); } //添加栏目 function add(){ $cate = new CateModel(); if ( $vo = $cate ->create()){ if ( $cate ->add()){ $this ->success( '添加栏目成功' ); } else { $this ->error( '添加栏目失败' ); } //dump($vo); } else { $this ->error( $cate ->getError()); } } } ?> |
二、模型部分:
aoli/Home/Lib/Model/CataModel.class.php文件如下:
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<?php class CateModel extends Model{ //对应数据库中的表aoli_cate protected $_auto = array ( array ( 'path' , 'tclm' ,3, 'callback' ), ); function tclm(){ $pid =isset( $_POST [ 'pid' ])?(int) $_POST [ 'pid' ]:0; echo ( $pid ); if ( $pid ==0){ $data =0; } else { $list = $this ->where( "id=$pid" )->find(); $data = $list [ 'path' ]. '-' . $list [ 'id' ]; //子类的path为父类的path加上父类的id } return $data ; } } ?> |
三、view视图部分
aoli/Home/Tpl/default/Cate/index.html页面如下:
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< form action = "__URL__/add" method = "post" > 请选择父级栏目:< select name = "pid" size = "20" > < option value = "0" >根栏目</ option > < volist name = "alist" id = "vo" > < option value = "{$vo['id']}" > < php > for($i=0;$i<$vo['count'];$i++){ echo ' '; } </ php > {$vo['name']} </ option > </ volist > </ select >< br /> 新的栏目名称:< input type = "text" name = "name" />< br /> < input type = "submit" value = "添加栏目" /> </ form > |