dedecms操作数据库的各类方法，二次开发都会用到的。首先，引入common.inc.php文件require_once (dirname(__FILE__) . "/include/common.inc.php");
1、获取一条记录的内容：$row = $dsql->GetOne("Select * From dede_* where id = $aid");echo $row['id'];
2、将查询获取总数输出：$row = $dsql->GetOne("select count(*) as dd where typeid = $typeid");echo $row['dd'];//输出总数;
3、将查询的若干条记录输出$sql = "Select * from dede_*";$dsql->SetQuery($sql);//将SQL查询语句格式化$dsql->Execute();//执行SQL操作//通过循环输出执行查询中的结果while($row = $dsql->GetArray()){echo $row['id'];echo $row['title'];}//或者采取这种方式输出内容 while($row = $dsql->GetObject()){echo $row->id;echo $row->Title;};
4、将查询的若干条记录输出$dsql->SetQuery("Select id,typename From `dede_arctype` where reid=0 And channeltype=1 And ishidden=0 And ispart<>2 order by sortrank");$dsql->Execute();while($row=$dsql->GetObject()){ $channellist .= "{$row->typename} "; echo $row->id;};
5、插入一条记录$sql = "INSERT INTO `dede_member_flink`(mid,title,url,linktype,imgurl,imgwidth,imgheight)VALUES(".$cfg_ml->M_ID.",'$title','$url','$linktype','$imgurl','$imgwidth','$imgheight');";//插入记录数据库$dsql->ExecuteNoneQuery($sql);//执行SQL操作$gid = $dsql->GetLastID();//获取刚刚插入的id;
6、删除一条记录$sql = "Delete From dede_member_flink where aid='$aid' And mid='".$cfg_ml->M_ID."';";$dsql->SetQuery($sql);$dsql->ExecNoneQuery();//或者使用简化模式$dsql->ExecNoneQuery("Delete From dede_member_flink where aid='$aid' And mid='".$cfg_ml->M_ID."';");
7、更新一条记录$upquery = "Update dede_member_flink settitle='$title',url='$url',linktype='$linktype',imgurl='$imgurl',imgwidth='$imgwidth',imgheight='$imgheight'where aid='$aid' And mid='".$cfg_ml->M_ID."';";$rs = $dsql->ExecuteNoneQuery($upquery);
8、判断获取数据库内容的常用方法$row = $dsql->GetOne("Select * From dede_moneycard_type where tid={$pid}");if(!is_array($row)){echo "失败";exit();}$upquery = " Update dede_member_flink settitle='$title',url='$url',linktype='$linktype',imgurl='$imgurl',imgwidth='$imgwidth',imgheight='$imgheight'where aid='$aid' And mid='".$cfg_ml->M_ID."';";$rs = $dsql->ExecuteNoneQuery($upquery);if($rs){echo "成功";}else{echo "失败";};
9、获取总数$dsql = new DedeSql(false);$dsql->SetQuery("Select * from `dede_admin` where userid='$userid' Or uname='$uname'");$dsql->Execute();$ns = $dsql->GetTotalRow();关闭数据库$dsql->Close();
