ThinkPHP无限级分类原理实现留言与回复功能实例，thinkphp实例

本文所述留言板程序使用了无限级分类的原理，可以实现无限级留言与回复。留言列表gclist保留了留言层次空格，使留言--回复层次分明。分享给大家供大家参考。具体分析如下：

功能上，本程序可以实现无限级留言与回复，即对留言回复，对回复的留言回复。当然你也可以作有限制的控制，使其只对留言回复，关键是在模板代码中去掉回复的留言中的“回复该留言”即可。欢迎去拍砖！

程序效果如下图所示：

完整源码点击此处本站下载。

数据表：

复制代码代码如下:

-- ----------------------------
-- Table structure for `wb_guestbook`
-- ----------------------------
DROP TABLE IF EXISTS `wb_guestbook`;
CREATE TABLE `eway_guestbook` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`pid` int(10) NOT NULL,
`email` varchar(50) NOT NULL,
`path` varchar(100) NOT NULL,
`username` varchar(30) NOT NULL,
`updatetime` int(10) NOT NULL,
`ip` varchar(15) NOT NULL,
`url` varchar(200) NOT NULL,
`inputtime` int(10) NOT NULL,
`content` text NOT NULL,
`verify` varchar(32) NOT NULL,
`isreply` tinyint(1) NOT NULL,
`status` tinyint(1) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=42 DEFAULT CHARSET=utf8;

代码：

复制代码代码如下:

// +----------------------------------------------------------------------
// | WBlog
// +----------------------------------------------------------------------
// | Copyright (c) 2008 http://www.w3note.com All rights reserved.
// +----------------------------------------------------------------------
// | Author: 网菠萝果
// +----------------------------------------------------------------------
// $Id$
/**
+------------------------------------------------------------------------------
* @class 留言板控制器GuestbookAction.class.php
+------------------------------------------------------------------------------
*/
class GuestbookAction extends CommonAction {
    public function index(){
        $garr= D('Guestbook')->gclist("id,username,inputtime,pid,url,content,path,concat(path,'-',id) as bpath");

        $this->assign('Gklist', $garr['list']);
        $this->assign('page',$garr['page']);
        $this->display();
    }
// +----------------------------------------------------------------------
// | 添加留言
// +----------------------------------------------------------------------

    public function add(){
        $this->adddata('Guestbook');

        }
// +----------------------------------------------------------------------
// | 网址跳转。如在表单url添加网址的话，点击会跳转到相关网站
// +----------------------------------------------------------------------

    public function tourl(){
      $this->gettourl('Guestbook');
      }
}
?>
// +----------------------------------------------------------------------
// | WBlog
// +----------------------------------------------------------------------
// | Copyright (c) 2008   http://www.w3note.com All rights reserved.
// | Author: 网菠萝果
// +----------------------------------------------------------------------
// $Id$
/**
+------------------------------------------------------------------------------
* @function 留言板模型类GuestbookModel.class.php
+------------------------------------------------------------------------------
*/

class GuestbookModel extends RelationModel{
// +----------------------------------------------------------------------
// | $_validate表单自动验证
// +----------------------------------------------------------------------

     protected $_validate = array(
                array('email','require','请填写您的邮箱!'),
                array('email','email','邮箱格式错误！'),

               );
// +----------------------------------------------------------------------
// | $_auto表单自动填充
// +----------------------------------------------------------------------

        protected $_auto=array(
                 array('status','1'),
                 array('inputtime','time',1,'function'),
                 array('content','content',1,'callback'),
                 array('url','geturl',1,'callback'),
                 array ('inputtime','time',1,'function'),
                 array('path','path',3,'callback'),
                 array('username','getusername',3,'callback'),
                   );
// +----------------------------------------------------------------------
// | getusername()过滤用户名
// +----------------------------------------------------------------------
      public function getusername(){
          if (isset ($_POST['username'])) {
            if(trim($_POST['username'])=='网菠萝果'){
                return $data= '￣□￣';
            }elseif(strlen($_POST['username']) >10){
                return $data= msubstr($_POST['username'],0,5);
            }else{
                return $data= $_POST['username'];
            }
        }
        }
// +----------------------------------------------------------------------
// | path()返回子类的path,父类的path的值为0
// +----------------------------------------------------------------------
     public function path(){
           $pid=isset($_POST['pid'])?(int)$_POST['pid']:0;
           $id=$_POST['id'];
            if($pid==0){
                return 0;
            }

            $fat=$this->where(array('id' => $pid))->find();
            $data=$fat['path'].'-'.$fat['id'];
            return $data;
        }
// +----------------------------------------------------------------------
// | content()过滤留言内容
// +----------------------------------------------------------------------
    public function content() {
        if (isset ($_POST['content']) && !empty ($_POST['content'])) {
             $data =deleteHtmlTags($_POST['content']);
             $data =safeHtml($data);
            if (strlen($data) > 1000) {
                $data = msubstr($data, 0, 500);
            }
            return $data;
          }
           }
// +----------------------------------------------------------------------
// | content()过滤URL
// +----------------------------------------------------------------------
    public function geturl(){
        if (isset ($_POST['url'])) {
        $data = deleteHtmlTags($_POST['url']);
        $data = safeHtml($data);
            return $data=$data?$data:"";
        }
    }
// +----------------------------------------------------------------------
// |gclist($field,$where='',$pagesize=30)留言列表
// +----------------------------------------------------------------------
// |$field,字段
// +----------------------------------------------------------------------
// |$where查询条件，默认为空
// +----------------------------------------------------------------------
// |$pagesize分页记录，默认为30
// +----------------------------------------------------------------------
// |使用方法，看上面的控制器调用
// +----------------------------------------------------------------------

     public function gclist($field,$where='',$pagesize=30) {
        import("ORG.Util.Page");
         $count = $this->field('id')->where($where)->count();
         $P = new Page($count, $pagesize);

        $list=$this->field($field)->where($where)->order('bpath,id')->limit($P->firstRow . ',' . $P->listRows)->select();

        foreach ($list as $k => $v) {
            $list[$k]['count'] = count(explode('-', $v['bpath']));
            $list[$k]['tousername']=$this->where(array('id'=> $v['pid']))->getField('username');
            $str = '';
            if ($v['pid'] 0) {
                for ($i = 0; $i                     $str .= ' ';
                }
                $str .= ' ';
            }
            $list[$k]['space'] = $str;
        }
        $P->setConfig('header', '篇');
        $P->setConfig('prev', "«");
        $P->setConfig('next', '»');
        $P->setConfig('first', '|«');
        $P->setConfig('last', '»|');
        $page = $P->show();
        $arr=array('page'=>$page,'list'=>$list);
        return $arr;
    }
}
?>

希望本文所述对大家的ThinkPHP框架程序设计有所帮助。