How does dedecms call the current column ID and the current column top ID?

dedecmsHow to call the current column ID and the current column top-level ID?

{dede:type}[field:typename /]The example in this article describes how dedecms calls the current column ID and The method of the current column's top-level ID. Share it with everyone for your reference. The specific analysis is as follows:

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1. The method of using dedecms to obtain the current column ID is as follows:

1. Template The following method is used to call the column ID:

The code is as follows:

{dede:type}[field:ID /]{/dede:type}

2. If the current column ID is called in {dede:sql}, the calling method is as follows:

The code is as follows:

{dede:sql sql='Select * from dede_arctype where id = ~typeid~ '} 
[field:字段]
{/dede:sql}

2. Call the top column ID of the current column:

First, add this tag syntax

where you need to call the top column ID The code is as follows:

{dede:type}[feild:topid/]{/dede:type}

Second, modify the source file, find type.lib.php in the taglib directory under the include directory, and find this statement:

The code is as follows:

$row = $dsql->GetOne("Select id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath 
From `dede_arctype` where id='$typeid' ");

Modify to:

The code is as follows:

$row = $dsql->GetOne("Select id,topid,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath 
From `dede_arctype` where id='$typeid' ");

Add the next line in if(!is_array($row)) return ";Add:

The code is as follows:

if( $row['topid']==0){$row['topid']=$row['id'];}{dede:type} 
[field:typename /]{/dede:type}

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