thinkPHP实现基于ajax的评论回复功能
发布:smiling 来源: PHP粉丝网 添加日期:2021-10-05 12:19:38 浏览: 评论:0
这篇文章主要介绍了thinkPHP实现基于ajax的评论回复功能,结合实例形式分析了thinkPHP实现ajax评论回复所涉及的控制器、视图、样式、js使用post进行ajax提交、并附带了相应的SQL语句,需要的朋友可以参考下。
本文实例讲述了thinkPHP实现基于ajax的评论回复功能,分享给大家供大家参考,具体如下:
控制器代码:
- <?php
- namespace Home\Controller;
- use Think\Controller;
- class IndexController extends Controller {
- public function index(){
- $num = M('comment')->count(); //获取评论总数
- $this->assign('num',$num);
- $data=array();
- $data=$this->getCommlist();//获取评论列表
- $this->assign("commlist",$data);
- $this->display('index');
- }
- /**
- *添加评论
- */
- public function addComment(){
- $data=array();
- if((isset($_POST["comment"]))&&(!emptyempty($_POST["comment"]))){
- $cm = json_decode($_POST["comment"],true);//通过第二个参数true,将json字符串转化为键值对数组
- $cm['create_time']=date('Y-m-d H:i:s',time());
- $newcm = M('comment');
- $id = $newcm->add($cm);
- $cm["id"] = $id;
- $data = $cm;
- $num = M('comment')->count();//统计评论总数
- $data['num']= $num;
- }else{
- $data["error"] = "0";
- }
- echo json_encode($data);
- }
- /**
- *递归获取评论列表
- */
- protected function getCommlist($parent_id = 0,&$result = array()){
- $arr = M('comment')->where("parent_id = '".$parent_id."'")->order("create_time desc")->select();
- if(emptyempty($arr)){
- return array();
- }
- foreach ($arr as $cm) {
- $thisArr=&$result[];
- $cm["children"] = $this->getCommlist($cm["id"],$thisArr);
- $thisArr = $cm;
- }
- return $result;
- }
- }
JavaScript代码:
- $(function(){
- //点击提交评论内容
- $('body').delegate('.comment-submit','click',function(){
- var content = $.trim($(this).parent().prev().children("textarea").val());//根据布局结构获取当前评论内容
- $(this).parent().prev().children("textarea").val("");//获取完内容后清空输入框
- if(""==content){
- alert("评论内容不能为空!");
- }else{
- var cmdata = new Object();
- cmdata.parent_id = $(this).attr("parent_id");//上级评论id
- cmdata.content = content;
- cmdata.nickname = "游客";//测试用数据
- cmdata.head_pic = "/Public/images/default.jpg";//测试用数据
- var replyswitch = $(this).attr("replyswitch");//获取回复开关锁属性
- $.ajax({
- type:"POST",
- url:"/index.php/home/index/addComment",
- data:{
- comment:JSON.stringify(cmdata)
- },
- dataType:"json",
- success:function(data){
- if(typeof(data.error)=="undefined"){
- $(".comment-reply").next().remove();//删除已存在的所有回复div
- //更新评论总数
- $(".comment-num").children("span").html(data.num+"条评论");
- //显示新增评论
- var newli = "";
- if(cmdata.parent_id == "0"){
- //发表的是一级评论时,添加到一级ul列表中
- newli = "<li comment_id='"+data.id+"'><div ><div><img class='head-pic' src='"+data.head_pic+"' alt=''></div><div class='cm'><div class='cm-header'><span>"+data.nickname+"</span><span>"+data.create_time+"</span></div><div class='cm-content'><p>"+data.content+"</p></div><div class='cm-footer'><a class='comment-reply' comment_id='"+data.id+"' href='javascript:void(0);'>回复</a></div></div></div><ul class='children'></ul></li>";
- $(".comment-ul").prepend(newli);
- }else{
- //否则添加到对应的孩子ul列表中
- if('off'==replyswitch){//检验出回复关闭锁存在,即三级评论不再提供回复功能
- newli = "<li comment_id='"+data.id+"'><div ><div><img class='head-pic' src='"+data.head_pic+"' alt=''></div><div class='children-cm'><div class='cm-header'><span>"+data.nickname+"</span><span>"+data.create_time+"</span></div><div class='cm-content'><p>"+data.content+"</p></div><div class='cm-footer'></div></div></div><ul class='children'></ul></li>";
- }else{//二级评论的回复按钮要添加回复关闭锁属性
- newli = "<li comment_id='"+data.id+"'><div ><div><img class='head-pic' src='"+data.head_pic+"' alt=''></div><div class='children-cm'><div class='cm-header'><span>"+data.nickname+"</span><span>"+data.create_time+"</span></div><div class='cm-content'><p>"+data.content+"</p></div><div class='cm-footer'><a class='comment-reply' comment_id='"+data.id+"' href='javascript:void(0);' replyswitch='off' >回复</a></div></div></div><ul class='children'></ul></li>";
- }
- $("li[comment_id='"+data.parent_id+"']").children("ul").prepend(newli);
- }
- }else{
- //有错误信息
- alert(data.error);
- }
- }
- });
- }
- });
- //点击"回复"按钮显示或隐藏回复输入框
- $("body").delegate(".comment-reply","click",function(){
- if($(this).next().length>0){//判断出回复div已经存在,去除掉
- $(this).next().remove();
- }else{//添加回复div
- $(".comment-reply").next().remove();//删除已存在的所有回复div
- //添加当前回复div
- var parent_id = $(this).attr("comment_id");//要回复的评论id
- var divhtml = "";
- if('off'==$(this).attr("replyswitch")){//二级评论回复后三级评论不再提供回复功能,将关闭属性附加到"提交回复"按钮"
- divhtml = "<div class='div-reply-txt' style='width:98%;padding:3px;' replyid='2'><div><textarea class='txt-reply' replyid='2' style='width: 100%; height: 60px;'></textarea></div><div style='margin-top:5px;text-align:right;'><a class='comment-submit' parent_id='"+parent_id+"' style='font-size:14px;text-decoration:none;background-color:#63B8FF;' href='javascript:void(0);' replyswitch='off' >提交回复</a></div></div>";
- }else{
- divhtml = "<div class='div-reply-txt' style='width:98%;padding:3px;' replyid='2'><div><textarea class='txt-reply' replyid='2' style='width: 100%; height: 60px;'></textarea></div><div style='margin-top:5px;text-align:right;'><a class='comment-submit' parent_id='"+parent_id+"' style='font-size:14px;text-decoration:none;background-color:#63B8FF;' href='javascript:void(0);'>提交回复</a></div></div>";
- }
- $(this).after(divhtml);
- }
- });
- })
页面样式代码:
- .comment-filed{
- width:640px;
- margin:0 auto;
- }
- .comment-num{
- text-align: right;
- font-size:14px;
- }
- .div-txt-submit{
- text-align:right;
- margin-top:8px;
- }
- .comment-submit{
- background-color:#63B8FF;
- margin-top:15px;
- text-decoration:none;
- color:#fff;
- padding:5px;
- font-size:14px;
- }
- .txt-commit{
- border:1px solid blue;
- width:620px;
- height: 60px;
- padding: 10px;
- }
- .txt-reply{
- width: 100%;
- height: 60px;
- }
- .comment-filed-list{
- margin-top:20px;
- }
- .comment-list{
- margin-top:2px;
- width:herit;
- height:50px;
- border-top:1px solid gray;
- }
- .comment-ul{
- list-style:none;
- padding-left:0;
- }
- .head-pic{
- width:40px;
- height:40px;
- }
- .cm{
- position:relative;
- top:0px;
- left:40px;
- top:-40px;
- width:600px;
- }
- .cm-header{
- padding-left:5px;
- }
- .cm-content{
- padding-left:5px;
- }
- .cm-footer{
- padding-bottom:15px;
- text-align:right;
- border-bottom: 1px dotted #CCC;
- }
- .comment-reply{
- text-decoration:none;
- color:gray;
- font-size: 14px;
- }
- .children{
- list-style:none;
- background-color:#FAFAFA;
- padding-left:0;
- margin-left:40px;
- }
- .children-cm{
- position:relative;
- left:40px;
- top:-40px;
- width:90%;
- }
页面布局代码:
- <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
- <html lang="en">
- <head>
- <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
- <title>php评论及回复功能</title>
- <link rel="stylesheet" type="text/css" href="/Public/css/comment.css" rel="external nofollow" >
- <script type="text/javascript" src="/Public/js/jquery-1.11.3.min.js" ></script>
- <script type="text/javascript" src="/Public/js/comment.js" ></script>
- </head>
- <body>
- <div class="comment-filed">
- <!--发表评论区begin-->
- <div>
- <div class="comment-num">
- <span>{$num}条评论</span>
- </div>
- <div>
- <div>
- <textarea class="txt-commit" replyid="0"></textarea>
- </div>
- <div class="div-txt-submit">
- <a class="comment-submit" parent_id="0" style="" href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><span style=''>发表评论</span></a>
- </div>
- </div>
- </div>
- <!--发表评论区end-->
- <!--评论列表显示区begin-->
- <!-- {$commentlist} -->
- <div class="comment-filed-list" >
- <div><span>全部评论</span></div>
- <div class="comment-list" >
- <!--一级评论列表begin-->
- <ul class="comment-ul">
- <volist name="commlist" id="data">
- <li comment_id="{$data.id}">
- <div >
- <div>
- <img class="head-pic" src="{$data.head_pic}" alt="">
- </div>
- <div class="cm">
- <div class="cm-header">
- <span>{$data.nickname}</span>
- <span>{$data.create_time}</span>
- </div>
- <div class="cm-content">
- <p>
- {$data.content}
- </p>
- </div>
- <div class="cm-footer">
- <a class="comment-reply" comment_id="{$data.id}" href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >回复</a>
- </div>
- </div>
- </div>
- <!--二级评论begin-->
- <ul class="children">
- <volist name="data.children" id="child" >
- <li comment_id="{$child.id}">
- <div >
- <div>
- <img class="head-pic" src="{$child.head_pic}" alt="">
- </div>
- <div class="children-cm">
- <div class="cm-header">
- <span>{$child.nickname}</span>
- <span>{$child.create_time}</span>
- </div>
- <div class="cm-content">
- <p>
- {$child.content}
- </p>
- </div>
- <div class="cm-footer">
- <a class="comment-reply" replyswitch="off" comment_id="{$child.id}" href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >回复</a>
- </div>
- </div>
- </div>
- <!--三级评论begin-->
- <ul class="children">
- <volist name="child.children" id="grandson" >
- <li comment_id="{$grandson.id}">
- <div >
- <div>
- <img class="head-pic" src="{$grandson.head_pic}" alt="">
- </div>
- <div class="children-cm">
- <div class="cm-header">
- <span>{$grandson.nickname}</span>
- <span>{$grandson.create_time}</span>
- </div>
- <div class="cm-content">
- <p>
- {$grandson.content}
- </p>
- </div>
- <div class="cm-footer">
- <!-- <a class="comment-reply" comment_id="1" href="javascript:void(0);" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >回复</a> -->
- </div>
- </div>
- </div>
- </li>
- </volist>
- </ul>
- <!--三级评论end-->
- </li>
- </volist>
- </ul>
- <!--二级评论end-->
- </li>
- </volist>
- </ul>
- <!--一级评论列表end-->
- </div>
- </div>
- <!--评论列表显示区end-->
- </div>
- </body>
- </html>
sql语句:
- DROP TABLE IF EXISTS `t_comment`;
- CREATE TABLE `t_comment` (
- `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键id',
- `parent_id` int(11) NOT NULL COMMENT '上级评论id,若是一级评论则为0',
- `nickname` varchar(100) DEFAULT NULL COMMENT '评论人昵称',
- `head_pic` varchar(400) DEFAULT NULL COMMENT '评论人头像',
- `content` text COMMENT '评论内容',
- `create_time` datetime DEFAULT NULL COMMENT '评论或回复发表时间',
- PRIMARY KEY (`id`)
- ) ENGINE=MyISAM AUTO_INCREMENT=148 DEFAULT CHARSET=utf8;
页面布局少一个jquery.js请自行加上。
Tags: thinkPHP评论回复 ajax评论回复
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