function GetPreNext($gtype='')
{
$rs = '';
if(count($this->PreNext)<2)
{
$aid = $this->ArcID;
$preR = $this->dsql->GetOne("Select id From `dede_arctiny` where id<$aid And arcrank>-1 And typeid='{$this->Fields['typeid']}' order by id desc");
$nextR = $this->dsql->GetOne("Select id From `dede_arctiny` where id>$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 `dede_archives` arc left join dede_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']);
$this->PreNext['pre'] = "上一篇：<a href='$mlink'>{$preRow['title']}</a> ";
$this->PreNext['preurl']=$mlink;
$this->PreNext['preimg'] = "<a href='$mlink'><img src="{$preRow['litpic']}" }
else
{
$this->PreNext['pre'] = "上一篇：没有了 ";
$this->PreNext['preurl'] = "javascript:void:";
$this->PreNext['preimg'] ="<img src="/templets/default/images/nophoto.jpg" }
if(is_array($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']);
$this->PreNext['next'] = "下一篇：<a href='$mlink'>{$nextRow['title']}</a> ";
$this->PreNext['nexturl']=$mlink;
$this->PreNext['nextimg'] = "<a href='$mlink'><img src="{$nextRow['litpic']}" }
else
{
$this->PreNext['next'] = "下一篇：没有了 ";
$this->PreNext['nexturl'] = "javascript:void:";
$this->PreNext['nextimg'] ="<a href='javascript:void(0)' }
}
if($gtype=='pre')
{
$rs = $this->PreNext['pre'];
}
else if($gtype=='preimg'){
$rs = $this->PreNext['preimg'];
}
else if($gtype=='next')
{
$rs = $this->PreNext['next'];
}
else if($gtype=='nextimg'){
$rs = $this->PreNext['nextimg'];
}
else if($gtype=='preurl'){
$rs = $this->PreNext['preurl'];
}else if($gtype=='nexturl'){
$rs = $this->PreNext['nexturl'];
}
else{
$rs = $this->PreNext['pre']." ".$this->PreNext['next'];
}
return $rs;
}
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