php无限极分类:
无限极分类重点在于表的设计:
1在model中:
class CatModel extends Model{ protected $cat = array(); public function __construct(){ parent::__construct(); $this->cats = $this->select(); } public function getTree($parent_id=0,$lev=0){ $tree = array(); foreach($this->cats as $c){ if ($c['parent_id'] == $parent_id) { $c['lev'] = $lev; $tree[] = $c; //再查出下层的目录拼接到一起去 $tree = array_merge($tree,$this->getTree($c['cat_id'] , $lev+1)); } } return $tree; } }
2在controller中:
class GoodsController extends Controller{ public function catelist(){ $catModel = D('Cat'); $catlist = $catModel->getTree(); //print_r($catlist); $this->assign('list',$catlist); $this->display(); } }
3在view中:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>管理中心 - 商品分类 </title> <meta name="robots" content="noindex, nofollow" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link href="__PUBLIC__/Admin/styles/general.css" rel="stylesheet" type="text/css" /> <link href="__PUBLIC__/Admin/styles/main.css" rel="stylesheet" type="text/css" /> </head> <body> <h1> <span class="action-span"><a href="cateadd.html">添加分类</a></span> <span class="action-span1"><a href="#">管理中心</a> </span><span id="search_id" class="action-span1"> - 商品分类 </span> <div style="clear:both"></div> </h1> <form method="post" action="" name="listForm"> <div class="list-div" id="listDiv"> <table width="100%" cellspacing="1" cellpadding="2" id="list-table"> <tbody> <tr> <th>分类名称</th> <th>商品数量</th> <th>数量单位</th> <th>导航栏</th> <th>是否显示</th> <th>价格分级</th> <th>排序</th> <th>操作</th> </tr> <foreach name='catlist' item='cal'> <tr align="center" class="0" id="tr_2"> <td align="left" class="first-cell" style="padding-left="1""> <img src="__PUBLIC__/Admin/images/menu_minus.gif" id="icon_0_1" width="9" height="9" border="0" style="margin-left:{$cal['lev']*2}em" /> <span><a href="#">{$cal['cat_name']}</a></span> </td> <td width="10%">0</td> <td width="10%"><span> </span></td> <td width="10%"><img src="__PUBLIC__/Admin/images/no.gif" /></td> <td width="10%"><img src="__PUBLIC__/Admin/images/yes.gif" /></td> <td><span>0</span></td> <td width="10%" align="right"><span>50</span></td> <td width="24%" align="center"><a href="{:U('admin/cat/catedit',array('cat_id'=>$cal['cat_id']))}">编辑</a> | <a href="{:U('admin/cat/catdel',array('cat_id'=>$cal['cat_id']))}" title="移除">移除</a> </td> </tr> </foreach> </tbody> </table> </div> </form> <include file='./Index:footer' /> </body> </html>
效果如下:
