织梦用{dede:sql}标签实现分页的方法
时间:2019-11-14 11:56:31 来源:未知 作者:站长技术网 点击:次
打开织梦include/arc.listview.class.php，找到代码： 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
{
$this->TotalResult = 0;
}
}
}
//end
然后找到代码： if($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"),
$InnerText
)
);
}
//end
最后找到function GetArcList这个函数，在其后添加一个可以通过传入sql参数获取指定数据源的方法，代码如下： /**
* 通过listsql标签中sql属性传入的参数来获得一个单列的文档列表
* */
function GetSqlList($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;
}
//end
总共就添加三段代码，每一段代码基本都参考它紧接着的上面那段原始代码，而无需改变它原来任何一个地方的代码，应该算是比较完美了，接下来在模板文件中的使用方法就跟一开始思路中所提到的那样，分页标签依旧沿用原来的，调用范例： |