下一篇问题的解决方法-织梦dedecms-v5.1升级sp1后不显示上一篇

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：

复制代码 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：

复制代码 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();}}

注释： 其实主要是修改了sql语句

原来的：

复制代码 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

复制代码 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：

复制代码 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.siteurlfrom `{$this->MainTable}` arc left join dede_arctype t on arc.typeid=t.IDwhere ";$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：{$preRow['title']} ";}else{$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']);$this->PreNext['next'] = "下一篇：{$nextRow['title']} ";}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：

复制代码 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.siteurlfrom `{$this->MainTable}` arc left join dede_arctype t on arc.typeid=t.IDwhere ";$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：{$preRow['title']} ";}else{$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']);$this->PreNext['next'] = "下一篇：{$nextRow['title']} ";}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

复制代码 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。