1、數據庫設計
需要4個字段 （1）id(id) （2）name(名稱)（3）pid(父id)（4）path(所有父id)
1、列表頁面
<body>
<a href="__URL__/operateClass?action=pClass&pid=0&path=0,">添加父分類</a>
<table border="1">
<tr>
<td>分類ID</td>
<td>分類名稱</td>
<td>分類PID</td>
<td>分類path</td>
<td>添加子分類</td>
</tr>
<tr>
<foreach name="lists" item="v">
<td>{$v['id']}</td>
<td>{$v['name']}</td>
<td>{$v['pid']}</td>
<td>{$v['path']}</td>
<td><a href="__URL__/operateClass?action=sClass&id={$v['id']}&path={$v['path']}">添加子分類</a></td>
</foreach>
</tr>
</table>
</body>
2、列表控制器
public function operateClass(){
$action = $_GET['action'];
$path = $_GET['path'];
$id = $_GET['id'];
$this->assign('id',$id);
$this->assign('path',$path);
$this->display('add_class');
}
3、添加頁面
<body>
<form action="__URL__/addClass" method="post" id="form">
<input type="hidden" name="id" id="id" value="{$id}"/>
<input type="hidden" name="path" id="path" value="{$path}"/>
<h3>分類</h3>
分類名稱：<input type="text" name="name" id="name"/><br/>
<input type="submit" name="sub" id="sub" value="提交"/> <input type="button" name="clear" id="clear" value="清空"/>
</form>
</body>
4、添加的控制器
public function addClass(){
$model = M();
if($_POST['id']){
$where = array(
'name' => $_POST['name'],
'pid' => $_POST['id'],
'path' => $_POST['path'].$_POST['id'].',',
);
$sAdd = $model->table("tp_class")->add($where);
if($sAdd){
$this->redirect('userlist');
}
}else{
$where = array(
'name' => $_POST['name'],
'pid' => 0,
'path' => '0'.$_POST['id'].',',
);
$sAdd = $model->table("tp_class")->add($where);
if($sAdd){
$this->redirect('userlist');
}
}
}