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dedecms的list标签orderby属性只支持按一个字段排序,假如想多个字段排序的话,就需要对PHP举办修改,使其可以支持多字段排序,修改如下:
打开include/arc.listview.class.php,找到:
- //假如不消默认的sortrank或id排序,利用连系查询(数据量大时很是迟钝)
- if(preg_match('/hot|click|lastpost|title/', $orderby))
- {
- $query = "SELECT arc.*,tp.typedir,tp.typename,tp.isdefault,tp.defaultname,
- tp.namerule,tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath
- $addField
- FROM `js_archives` arc
- LEFT JOIN `js_arctype` tp ON arc.typeid=tp.id
- $addJoin
- WHERE {$this->addSql} $ordersql LIMIT $limitstart,$row";
- }
- //普通环境先从arctiny表查出ID,然后按ID查询(速度很是快)
- else
- {
- $t1 = ExecTime();
- $ids = array();
- $query = "SELECT id FROM `js_arctiny` arc WHERE {$this->addSql} $ordersql LIMIT $limitstart,$row ";
- $this->dsql->SetQuery($query);
- $this->dsql->Execute();
- while($arr=$this->dsql->GetArray())
- {
- $ids[] = $arr['id'];
- }
- $idstr = join(',',$ids);
- if($idstr=='')
- {
- return '';
- }
- else
- {
- $query = "SELECT arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,
- tp.namerule,tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath
- $addField
- FROM `js_archives` arc LEFT JOIN `js_arctype` tp ON arc.typeid=tp.id
- $addJoin
- WHERE arc.id in($idstr) $ordersql ";
- }
- $t2 = ExecTime();
- //echo $t2-$t1;
-
- }
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替换为:
- if($orderby=="default")
- {
- $t1 = ExecTime();
- $ids = array();
- $query = "SELECT id FROM `js_arctiny` arc WHERE {$this->addSql} $ordersql LIMIT $limitstart,$row ";
- $this->dsql->SetQuery($query);
- $this->dsql->Execute();
- while($arr=$this->dsql->GetArray())
- {
- $ids[] = $arr['id'];
- }
- $idstr = join(',',$ids);
- if($idstr=='')
- {
- return '';
- }
- else
- {
- $query = "SELECT arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,
- tp.namerule,tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath
- $addField
- FROM `js_archives` arc LEFT JOIN `js_arctype` tp ON arc.typeid=tp.id
- $addJoin
- WHERE arc.id in($idstr) $ordersql ";
- }
- $t2 = ExecTime();
- //echo $t2-$t1;
-
- }
- else
- {
- $query = "SELECT arc.*,tp.typedir,tp.typename,tp.isdefault,tp.defaultname,
- tp.namerule,tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath
- $addField
- FROM `js_archives` arc
- LEFT JOIN `js_arctype` tp ON arc.typeid=tp.id
- $addJoin
- WHERE {$this->addSql} $ordersql LIMIT $limitstart,$row";
- }
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找到:
- else {
- $ordersql=" ORDER BY arc.sortrank $orderWay";
- }
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替换为:
- else if($orderby=="default"){
- $ordersql=" ORDER BY arc.sortrank $orderWay";
- }
- else{
- $ordersql=" ORDER BY ".$orderby.",arc.sortrank $orderWay";
- }
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此刻在模板中就可以应用了多字段排序了,模板应用如下:
- {dede:list pagesize='17' orderby='arc.title desc,arc.id'}
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