织梦dedecms v5.1升级sp1后不显示上一篇、下一篇问题的解决方法

方法很简单，也是最懒的方法，把关键之处恢复为升级之前的，需要修改两处。

第一处：

修改dede/inc/inc_archives_functions.php

原为：

代码如下:

//更新上下篇文章
if($cfg_up_prenext=='Y' && !empty($typeid))
{
$preRow = $arc->dsql->GetOne("Select ID From `{$arc->MainTable}` where ID<$aid And ID>".($aid+10)." And arcrank>-1 And typeid='$typeid' order by ID desc");
$nextRow = $arc->dsql->GetOne("Select ID From `{$arc->MainTable}` where ID<$aid And ID>".($aid-10)." And arcrank>-1 And typeid='$typeid' order by ID asc");
if(is_array($preRow)){
$arc = new Archives($preRow['ID']);
$arc->MakeHtml();
}
if(is_array($nextRow)){
$arc = new Archives($nextRow['ID']);
$arc->MakeHtml();
}
}

改为：

代码如下:

//更新上下篇文章
if($cfg_up_prenext=='Y' && !empty($typeid))
{
$preRow = $arc->dsql->GetOne("Select ID From `{$arc->MainTable}` where ID<$aid And arcrank>-1 And typeid='$typeid' order by ID desc");
$nextRow = $arc->dsql->GetOne("Select ID From `{$arc->MainTable}` where ID<$aid And arcrank>-1 And typeid='$typeid' order by ID asc");
if(is_array($preRow)){
$arc = new Archives($preRow['ID']);
$arc->MakeHtml();
}
if(is_array($nextRow)){
$arc = new Archives($nextRow['ID']);
$arc->MakeHtml();
}
}

网管之家注释：其实主要是修改了sql语句

原来的：

代码如下:

$preRow = $arc->dsql->GetOne("Select ID From `{$arc->MainTable}` where ID<$aid And ID>".($aid+10)." And arcrank>-1 And typeid='$typeid' order by ID desc");
$nextRow = $arc->dsql->GetOne("Select ID From `{$arc->MainTable}` where ID<$aid And ID>".($aid-10)." And arcrank>-1 And typeid='$typeid' order by ID asc");

现在的

代码如下:

$preRow = $arc->dsql->GetOne("Select ID From `{$arc->MainTable}` where ID<$aid And arcrank>-1 And typeid='$typeid' order by ID desc");
$nextRow = $arc->dsql->GetOne("Select ID From `{$arc->MainTable}` where ID<$aid And arcrank>-1 And typeid='$typeid' order by ID asc");

就是将And ID>".($aid+10)." 与And ID>".($aid-10)." 去掉了，为什么id不能大于10呢。如果对于栏目比较多的，肯定不行

第二处：

修改include/inc_archives_view.php

原为：

代码如下:
//--------------------------
//获取上一篇，下一篇链接
//--------------------------
function GetPreNext($gtype='')
{
$rs = "";
if(count($this->PreNext)<2)
{ $aid = $this->ArcID;
$idmax = $this->ArcID+10;
$idmin = $this->ArcID-10;
$next = " arc.ID>'$aid' And arc.ID<'$idmax' And arc.arcrank>-1 And typeid='{$this->Fields['typeid']}' order by arc.ID asc ";
$pre = " arc.ID>'$idmin' And arc.ID<'$aid' And arc.arcrank>-1 And typeid='{$this->Fields['typeid']}' order by arc.ID desc ";
$query = "Select arc.ID,arc.title,arc.shorttitle,
arc.typeid,arc.ismake,arc.senddate,arc.arcrank,arc.money,
t.typedir,t.typename,t.namerule,t.namerule2,t.ispart,
t.moresite,t.siteurl
from `{$this->MainTable}` arc left join dede_arctype t on arc.typeid=t.ID
where ";
$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'],true,$preRow['siteurl']);
$this->PreNext['pre'] = "上一篇：<a href='$mlink' target='_blank'>{$preRow['title']}</a> ";
}
else{
$this->PreNext['pre'] = "上一篇：没有了 ";
}
if(is_array($nextRow))
{
$mlink = GetFileUrl($nextRow['ID'],$nextRow['typeid'],$nextRow['senddate'],$nextRow['title'],$nextRow['ismake'],$nextRow['arcrank'],$nextRow['namerule'],$nextRow['typedir'],$nextRow['money'],true,$nextRow['siteurl']);
$this->PreNext['next'] = "下一篇：<a href='$mlink' target='_blank'>{$nextRow['title']}</a> ";
}
else{
$this->PreNext['next'] = "下一篇：没有了 ";
}
} if($gtype=='pre'){
$rs = $this->PreNext['pre'];
}
else if($gtype=='next'){
$rs = $this->PreNext['next'];
}
else{
$rs = $this->PreNext['pre']."   ".$this->PreNext['next'];
} return $rs;
}

改为：

代码如下:
//--------------------------
//获取上一篇，下一篇链接
//--------------------------
function GetPreNext($gtype='')
{
$rs = "";
if(count($this->PreNext)<2)
{ $aid = $this->ArcID;
$idmax = $this->ArcID+10;
$idmin = $this->ArcID-10;
$next = " arc.ID>'$aid' And arc.arcrank>-1 And typeid='{$this->Fields['typeid']}' order by arc.ID asc ";
$pre = " arc.ID<'$aid' And arc.arcrank>-1 And typeid='{$this->Fields['typeid']}' order by arc.ID desc ";
$query = "Select arc.ID,arc.title,arc.shorttitle,
arc.typeid,arc.ismake,arc.senddate,arc.arcrank,arc.money,
t.typedir,t.typename,t.namerule,t.namerule2,t.ispart,
t.moresite,t.siteurl
from `{$this->MainTable}` arc left join dede_arctype t on arc.typeid=t.ID
where ";
$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'],true,$preRow['siteurl']);
$this->PreNext['pre'] = "上一篇：<a href='$mlink' target='_blank'>{$preRow['title']}</a> ";
}
else{
$this->PreNext['pre'] = "上一篇：没有了 ";
}
if(is_array($nextRow))
{
$mlink = GetFileUrl($nextRow['ID'],$nextRow['typeid'],$nextRow['senddate'],$nextRow['title'],$nextRow['ismake'],$nextRow['arcrank'],$nextRow['namerule'],$nextRow['typedir'],$nextRow['money'],true,$nextRow['siteurl']);
$this->PreNext['next'] = "下一篇：<a href='$mlink' target='_blank'>{$nextRow['title']}</a> ";
}
else{
$this->PreNext['next'] = "下一篇：没有了 ";
}
} if($gtype=='pre'){
$rs = $this->PreNext['pre'];
}
else if($gtype=='next'){
$rs = $this->PreNext['next'];
}
else{
$rs = $this->PreNext['pre']."   ".$this->PreNext['next'];
} return $rs;
}

改好的文件覆盖上传即可。

当然这里也是修改的sql语句

代码如下:
$next = " arc.ID>'$aid' And arc.arcrank>-1 And typeid='{$this->Fields['typeid']}' order by arc.ID asc ";
$pre = " arc.ID<'$aid' And arc.arcrank>-1 And typeid='{$this->Fields['typeid']}' order by arc.ID desc ";

因为可能版本不同，不建议直接全部复制，只需要替换下sql语句即可。要不容易出现错误。

上一篇：dedecms更新后支付宝接口提示错误ILLEGAL_EXTERFACE的解决方法

下一篇：分享两个DEDECMS分页样式css代码

免责声明：本站所有文章和图片均来自用户分享和网络收集，文章和图片版权归原作者及原出处所有，仅供学习与参考，请勿用于商业用途，如果损害了您的权利，请联系网站客服处理。

来源：网友投稿关注：时间：2020-12-29 08:33

☉首先声明，只要是我们的vip会员所有源码均可以免费下载，不做任何限制(了解更多)
☉本站的源码不会像其它下载站一样植入大量的广告。为了更好的用户体验以后坚持不打水印
☉本站只提供精品织梦源码，源码在于可用，不在多！！希望在这里找到你合适的。
☉本站提供的整站织梦程序，均带数据及演示地址。可以在任一源码详情页查看演示地址
☉本站所有资源（包括源码、模板、素材、特效等）仅供学习与参考，请勿用于商业用途。
☉如有其他问题，请加网站客服QQ进行交流。