ThinkPHP无限级分类原理实现留言与回复功能实例

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：

-- ----------------------------     

-- 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：

<?php     

// +----------------------------------------------------------------------     

// | 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');     

      }      

}     

?>     

<?php     

// +----------------------------------------------------------------------     

// | 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 < $list[$k]['count'] * 2; $i++) {     

                    $str .= '&nbsp;';     

                }     

                $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。