DedeCMS5.5实现上一图集、下一图集的修改方法

DedeCMS5.5实现上一图集、下一图集的修改方法

大家都知道DedeCMS从5.5版本之后加入图集功能，调用起来很方便，其中 {dede:prenext get='nextimg'/}　{dede:prenext get='preimg'/}　就是上下页链接，可以显示图片的，可是我想要的功能是做一个图片幻灯类似于新浪的那种。就是“上一图集”“下一图集”的样子。

织梦不带有这个功能，需要我们自己来扩展。

打开include/arc.archives.class.php文件，修改GetPreNext() ，以下区域红色代码是新增加的。

//获取上一篇，下一篇链接
    

function GetPreNext($gtype='')
    {
 $rs = '';
 if(count($this->PreNext)<2)
 {
     $aid = $this->ArcID;
     $preR =  $this->dsql->GetOne("Select id From `q_arctiny` where id<$aid And arcrank>-1 And typeid='{$this->Fields['typeid']}' order by id desc");
     $nextR = $this->dsql->GetOne("Select id From `q_arctiny` where id>$aid And arcrank>-1 And typeid='{$this->Fields['typeid']}' order by id asc");
     $next = (is_array($nextR) ? " where arc.id={$nextR['id']} " : ' where 1>2 ');
     $pre = (is_array($preR) ? " where arc.id={$preR['id']} " : ' where 1>2 ');
     $query = "Select arc.id,arc.title,arc.shorttitle,arc.typeid,arc.ismake,arc.senddate,arc.arcrank,arc.money,arc.filename,arc.litpic,
   t.typedir,t.typename,t.namerule,t.namerule2,t.ispart,t.moresite,t.siteurl,t.sitepath
   from `q_archives` arc left join q_arctype t on arc.typeid=t.id  ";
     $nextRow = $this->dsql->GetOne($query.$next);
     $preRow = $this->dsql->GetOne($query.$pre);
     if(is_array($preRow))
     {
  $mlink = GetFileUrl($preRow['id'],$preRow['typeid'],$preRow['senddate'],$preRow['title'],$preRow['ismake'],$preRow['arcrank'],
  $preRow['namerule'],$preRow['typedir'],$preRow['money'],$preRow['filename'],$preRow['moresite'],$preRow['siteurl'],$preRow['sitepath']);
  $this->PreNext['pre'] = "上一篇：{$preRow['title']} ";
  $this->PreNext['preimg'] = " "; 
  $this->PreNext['pretj'] = "<<上一图集 ";
     }
     else
     {
  $this->PreNext['pre'] = "上一篇：没有了 ";
  $this->PreNext['preimg'] ="";
  $this->PreNext['pretj'] = "没有了 ";
     }
     if(is_array($nextRow))
     {
  $mlink = GetFileUrl($nextRow['id'],$nextRow['typeid'],$nextRow['senddate'],$nextRow['title'],$nextRow['ismake'],$nextRow['arcrank'],
  $nextRow['namerule'],$nextRow['typedir'],$nextRow['money'],$nextRow['filename'],$nextRow['moresite'],$nextRow['siteurl'],$nextRow['sitepath']);
  $this->PreNext['next'] = "下一篇：{$nextRow['title']} ";
  $this->PreNext['nextimg'] = " ";
  $this->PreNext['nexttj'] = "下一图集>> ";
     }
     else
     {
  $this->PreNext['next'] = "下一篇：没有了 ";
  $this->PreNext['nextimg'] ="";
  $this->PreNext['nexttj'] = "没有了 ";
     }
 }
 if($gtype=='pre')
 {
     $rs =  $this->PreNext['pre'];
 }
 else if($gtype=='preimg'){
     
     $rs =  $this->PreNext['preimg'];
 }
 else if($gtype=='pretj'){
     
     $rs =  $this->PreNext['pretj'];
 }
 else if($gtype=='next')
 {
     $rs =  $this->PreNext['next'];
 }
 else if($gtype=='nextimg'){
     
     $rs =  $this->PreNext['nextimg'];
 }
 else if($gtype=='nexttj'){
     
     $rs =  $this->PreNext['nexttj'];
 }
 else
 {
     $rs =  $this->PreNext['pre']."   ".$this->PreNext['next'];
 }
 return $rs;
    }

调用的时候写成这样即可： 上一图集：{dede:prenext get='pretj'/} 下一图集：{dede:prenext get='nexttj'/}