dede:sql实现分页,织梦sql实现分页的办法

文章介绍   思路是把dede:list标签进行改造, 列表页专用标签的工作原理大致是先通过栏目变量id获取到对应的数据源再呈现到页面上来,那么 就可以让它不仅仅通过栏目变量id还可以通过指定的sql语句来获取数据源 可以另外嵌入一个类似{dede:listsql sql='select * from wp_posts' pagesize='10'}的标签来使用。    打开include/arc.listview.class.php这个文件   找到:     if ( ! is_object ( $ctag ) ) { $ctag = $this -> dtp -> GetTag ( "list" ) ; }   这一段,在其后添加如下代码:   if(!is_object($ctag)) { $ctag = $this->dtp->GetTag("listsql"); if (is_object($ctag)) { $cquery = $ctag->GetAtt("sql"); $cquery = preg_replace("/SELECT(.*?)FROM/is", " SELECT count(*) as dd FROM ", $cquery); $cquery = preg_replace("/ORDER(.*?)SC/is", "", $cquery); $row = $this->dsql->GetOne($cquery); if(is_array($row)) { $this->TotalResult = $row['dd']; } else { $this->TotalResult = 0; } } } 然后找到: if($ctag->GetName()=="list") { $limitstart = ($this->PageNo-1) * $this->PageSize; $row = $this->PageSize; if(trim($ctag->GetInnerText())=="") { $InnerText = GetSysTemplets("list_fulllist.htm"); } else { $InnerText = trim($ctag->GetInnerText()); } $this->dtp->Assign($tagid, $this->GetArcList( $limitstart, $row, $ctag->GetAtt("col"), $ctag->GetAtt("titlelen"), $ctag->GetAtt("infolen"), $ctag->GetAtt("imgwidth"), $ctag->GetAtt("imgheight"), $ctag->GetAtt("listtype"), $ctag->GetAtt("orderby"), $InnerText, $ctag->GetAtt("tablewidth"), $ismake, $ctag->GetAtt("orderway") ) ); } 这一段,在其后添加如下代码: else if($ctag->GetName()=="listsql") { $limitstart = ($this->PageNo-1) * $this->PageSize; $row = $this->PageSize; if(trim($ctag->GetInnerText())=="") { $InnerText = GetSysTemplets("list_fulllist.htm"); } else { $InnerText = trim($ctag->GetInnerText()); } $this->dtp->Assign($tagid, $this->GetSqlList( $limitstart, $row, $ctag->GetAtt("sql"), $InnerText ) ); } 最后找到function GetArcList这个方法,在其后添加一个可以通过传入sql参数获取指定数据源的方法,代码如下:   function GetSqlList($limitstart = 0, $row = 10, $sql = '', $innertext){   global $cfg_list_son; $innertext = trim($innertext);   if ($innertext == '') { $innertext = GetSysTemplets('list_fulllist.htm'); } //处理SQL语句 $limitStr = " LIMIT {$limitstart},{$row}";   $this->dsql->SetQuery($sql . $limitStr); $this->dsql->Execute('al'); $t2 = ExecTime();   //echo $t2-$t1; $sqllist = ''; $this->dtp2->LoadSource($innertext); $GLOBALS['autoindex'] = 0;   //获取字段 while($row = $this->dsql->GetArray("al")) {   $GLOBALS['autoindex']++;   if(is_array($this->dtp2->CTags)) { foreach($this->dtp2->CTags as $k=>$ctag) { if($ctag->GetName()=='array') { //传递整个数组,在runphp模式中有特殊作用 $this->dtp2->Assign($k,$row); } else { if(isset($row[$ctag->GetName()])) { $this->dtp2->Assign($k,$row[$ctag->GetName()]); } else { $this->dtp2->Assign($k,''); } } } }   $sqllist .= $this->dtp2->GetResult();   }//while   $t3 = ExecTime(); //echo ($t3-$t2); $this->dsql->FreeResult('al');   return $sqllist; } 总共就添加三段代码,调用范例: {dede:listsql sql='select ID,post_title from wp_posts' pagesize='10'} <li><a href="http://www.zuola.net/[field:ID /].html">[field:post_title /]</a></li> {/dede:listsql} <!--分页--> {dede:pagelist listsize='2' listitem='index pre pageno next end '/}   {dede:sql}和{dede:listsql}的文章链接地址<a href="[field:id runphp='yes'] $id=@me ;@me='';$url=GetOneArchive($id);@me=$url['arcurl'];[/field:id]">