How to add parent column call and multi-level support currentstyle in DEDECMS

How to add parent column calls and multi-level support for currentstyle in DEDECMS?

Because I needed it, I modified the code myself and shared it with friends who can use it. You can learn from it!

Recommended study: Dream Weaver cms

\include\inc_typelink.php

1. After this code (about 263 lines)

if($reID==0 && $typeid>0){ 
$dbrow = $this->dsql->GetOne("Select reID From dede_arctype where ID='$typeid' "); 
if(is_array($dbrow)) $reID = $dbrow['reID']; 
}

Add

// 新增代码 
if($reID>0){ 
$dbrow = $this->dsql->GetOne("Select reID From dede_arctype where ID='$reID'"); 
if(is_array($dbrow)) $parentID = $dbrow['reID']; 
} 
// 新增代码结束结束

2. Then after the following code:

else if($typetype=="self"){ 
$sql = "Select ID,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl From dede_arctype where reID=&#39;$reID&#39; And ishidden<>1 order by sortrank asc limit 0,$row"; 
}

Add

else if($typetype=="parent"){ //新增代码 获得上级栏目 
$sql = "Select ID,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl From dede_arctype where reID=&#39;$parentID&#39; And ishidden<>1 order by sortrank asc limit 0,$row"; 
} 
//新增代码结束 获得上级栏目

3. Modify the following code

if($row['ID']=="$typeid" && $myinnertext != ''){

Modify For:

if(($row['ID']=="$typeid" || $row['ID']=="$reID" || $row['ID']=="$parentID") && $myinnertext != ''){

After 3 steps of modification

can achieve 2 functions:

1. Call the parent column (superior), the column classification is too deep Useful

methods:

{dede:channel type='parent'}{dede:channel}

2. You can call currentstyle, which is very useful if the column classification is too deep and you want to change the current column style!

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