首先后台执行SQLALTER TABLE dede_archives ADD zan int(11) NOT NULL DEFAULT '0' AFTER weight;也就是在 dede_archives 表中增加 zan 这个字段,加到weight这个字段后边。然后执行CREATE TABLE IF NOT EXISTS `dede_zan` ( `id` int(11) NOT NULL AUTO_INCREMENT, `aid` int(11) NOT NULL, `ip` varchar(40) NOT NULL, PRIMARY KEY (`id`)) ENGINE=MyISAM DEFAULT CHARSET=utf8这个表是保存被赞的文档aid 及IP的,为了检测是否赞过的IP然后在include/extend.func.php 中增加以下函数,用来获取文档被赞次数的function zan($aid){ global $dsql; $row = $dsql->GetOne("Select id,zan From dede_archives where id='".$aid."'"); return $row['zan']; }
打开模板templets/default/article_article.htm加入css.zan p{background:#000; opacity:.8;filter:alpha(opacity=80);}.zan p a{padding-left:30px; height:24px; background:url(/images/heart.png) no-repeat 4px -1px;color:#fff; font-weight:bold; font-size:14px}.zan p a:hover{background-position:4px -25px;text-decoration:none}加入JS,记得引入jquery.js<script type="text/javascript" src="/jquery.js"></script>$(function(){ $("p a").click(function(){ var zan = $(this); var id = zan.attr("rel"); //对应id zan.fadeOut(300); //渐隐效果 $.ajax({ type:"POST", url:"/zan.php", data:"id="+id, cache:false, //不缓存此页面 success:function(data){ zan.html(data); zan.fadeIn(300); //渐显效果 } }); return false; });});加入<div class="zan"><p><a href="#" title="赞一个 "class="img_on" rel="{dede:field.id/}">{dede:field.id function="zan(@me)"/}</a></p></div>
建立zan.php 放到根目录<?phprequire_once (dirname(__FILE__) . "/include/common.inc.php");$ip =getip(); //获取用户IP$id = $_POST['id'];if(!isset($id) || empty($id)) exit;//查询已赞过的IP$dsql->SetQuery("SELECT ip FROM dede_zan WHERE aid='".$id."' and ip='$ip'");$dsql->Execute();$count = $dsql->GetTotalRow();if($count==0){ //如果没有记录 $dsql->ExecuteNoneQuery("update dede_archives set zan=zan+1 where id='$id'; ");//写入赞数 $dsql->ExecuteNoneQuery("insert into dede_zan (aid,ip) values ('$id','$ip'); ");//写入IP,及被赞的AID $rows = $dsql->GetOne("Select zan from dede_archives where id='".$id."'");//获取被赞的数量 $zan = $rows['zan']; //获取赞数值 echo $zan;}else{ echo "赞过了..";}好了,点赞功能开发好了。
