How to get unlimited column subcategories in DEDECMS?
Most corporate websites use DEDECMS. When I was designing a website for a client today, after finishing the DEDE automatic internal linking and full URL spelling formats, I encountered a small problem because there are the most product categories. There are four levels. The customer requested that there be a pop-up menu on the left to call sub-categories at each level, but DEDECMS can only call the first-level category by default. After hard work, Baidu GOOGLE finally figured out this thing. I didn't dare to keep it to myself, so I sent it out to share with friends in need.
Recommended learning: Dream Weaver cms
First, modify the code of the /include/taglib/channerl.lib.php file to the following:
The code is as follows:
<?php
function lib_channel(&$ctag,&$refObj)
{
global $_sys_globals,$envs,$dsql;
$attlist = “typeid|0,reid|0,row|100,col|1,type|son,currentstyle|”;
FillAttsDefault($ctag->CAttribute->Items,$attlist);
extract($ctag->CAttribute->Items, EXTR_SKIP);
$innertext = $ctag->GetInnerText();
if(empty($typeid) && $envs['typeid']!=0)
{
$typeid = $envs['typeid'];
$reid = $envs['reid'];
}else{
$reid=0;
}
if($type==”||$type==’sun’) $type=”son”;
if($innertext==”) $innertext = GetSysTemplets(“channel_list.htm”);
if($reid==0 && $typeid>0)
{
$dbrow = $dsql->GetOne(“Select reid From ying_arctype where id=’$typeid’ “);
if(is_array($dbrow)) $reid = $dbrow['reid'];
}
$likeType = ”;
if($type==’top’)
{
$sql = “Select id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath,description
From ying_arctype where reid=0 And ishidden<>1 order by sortrank asc limit 0,$row”;
}
else if($type==”son”)
{
//if($_sys_globals['typeid']>0) $typeid = $_sys_globals['typeid'];
if($typeid==0) {
return ”;
}
$sql = “Select id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath,description
From ying_arctype where reid=’$typeid’ And ishidden<>1 order by sortrank asc limit 0,$row”;
}
else if($type==”self”)
{
if($reid==0) {
return ”;
}
$sql = “Select id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath,description
From ‘ying_arctype’ where reid=’$reid’ And ishidden<>1 order by sortrank asc limit 0,$row”;
}
//And id<>’$typeid’
$dtp2 = new DedeTagParse();
$dtp2->SetNameSpace(“field”,”[","]“);
$dtp2->LoadSource($innertext);
$dsql2 = clone $dsql;
$dsql->SetQuery($sql);
$dsql->Execute();
$line = $row;
$GLOBALS['autoindex'] = 0;
for($i=0;$i < $line;$i++)
{
if($col>1) $likeType .= “<dl>\r\n”;
for($j=0;$j<$col;$j++)
{
if($col>1) $likeType .= “<dd>\r\n”;
if($row=$dsql->GetArray())
{
if($type==’self’ && $row['id']==$typeid) //处理同级栏目中，当前栏目的样式
{
if($currentstyle!=”)
{
$linkOkstr = $currentstyle;
$row['typelink'] = GetOneTypeUrlA($row);
$linkOkstr = str_replace(“~typelink~”,$row['typelink'],$linkOkstr);
$linkOkstr = str_replace(“~typename~”,$row['typename'],$linkOkstr);
$likeType .= $linkOkstr;
}
}else
{
$row['typelink'] = $row['typeurl'] = GetOneTypeUrlA($row);
if(is_array($dtp2->CTags))
{
foreach($dtp2->CTags as $tagid=>$ctag){
if(isset($row[$ctag->GetName()]))
{
$dtp2->Assign($tagid,$row[$ctag->GetName()]);
}
elseif (preg_match(‘/^sonchannel[0-9]*$/’,$ctag->GetName()))
{
$dtp2->Assign($tagid,lib_channel_son($ctag,$row['id'],$dsql2));
}
}
}
$likeType .= $dtp2->GetResult();
}
}
if($col>1) $likeType .= “</dd>\r\n”;
$GLOBALS['autoindex']++;
}//Loop Col
if($col>1)
{
$i += $col – 1;
$likeType .= ” </dl>\r\n”;
}
}//Loop for $i
reset($dsql2);
$dsql->FreeResult();
return $likeType;
}
function lib_channel_son($ctag,$typeid = 0,$dsql2)
{
$attlist = “row|100,col|1,currentstyle|”;
FillAttsDefault($ctag->CAttribute->Items,$attlist);
extract($ctag->CAttribute->Items, EXTR_SKIP);
$innertext = $ctag->GetInnerText();
$dsql3 = clone $dsql2;
$likeType = ”;
//if($_sys_globals['typeid']>0) $typeid = $_sys_globals['typeid'];
if($typeid==0) {
return ”;
}
$sql = “Select id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath,description
From ying_arctype where reid=’$typeid’ And ishidden<>1 order by sortrank asc limit 0,$row”;
//And id<>’$typeid’
$dtp2 = new DedeTagParse();
$dtp2->SetNameSpace(“field”,”[","]“);
$dtp2->LoadSource($innertext);
$dsql2->SetQuery($sql);
$dsql2->Execute();
$line = $row;
for($i=0;$i < $line;$i++)
{
if($col>1) $likeType .= “<dl>\r\n”;
for($j=0;$j<$col;$j++)
{
if($col>1) $likeType .= “<dd>\r\n”;
if($row=$dsql2->GetArray())
{
$row['typelink'] = $row['typeurl'] = GetOneTypeUrlA($row);
if(is_array($dtp2->CTags))
{
foreach($dtp2->CTags as $tagid=>$ctag){
if(isset($row[$ctag->GetName()]))
{
$dtp2->Assign($tagid,$row[$ctag->GetName()]);
}
elseif (preg_match(‘/^sonchannel[0-9]*$/’,$ctag->GetName()))
{
$dtp2->Assign($tagid,lib_channel_son($ctag,$row['id'],$dsql3));
}
}
}
$likeType .= $dtp2->GetResult();
}
if($col>1) $likeType .= “</dd>\r\n”;
}//Loop Col
if($col>1)
{
$i += $col – 1;
$likeType .= ” </dl>\r\n”;
}
}//Loop for $i
reset($dsql3);
$dsql2->FreeResult();
return $likeType;
}
?>Use [field:sonchannel0] [/field:sonchannel0] to call in the template. This is used to get the sub-column (using [sonchannel number] as the label name is to prevent embedding The tags cannot be parsed correctly when applied). The purpose of this is to facilitate you to select sub-columns when your column has many sub-columns with infinite levels. Let’s take an example:
The code is as follows:
<ul id="left_nav">
{dede:channel type='son' typeid='16'}
<li><a href="[field:typelink/]“>[field:typename/]</a>
<ul>
[field:sonchannel0]
<li><a href="[field:typelink/]“>[field:typename/]</a>
<ul>
[field:sonchannel1]
<li><a href="[field:typelink/]“>[field:typename/]</a>
<ul>
[field:sonchannel2]
<li><a href="[field:typelink/]“>[field:typename/]</a>
<ul>
[field:sonchannel3]
<li><a href="[field:typelink/]“>[field:typename/]</a></li>
[/field:sonchannel3]
</ul>
</li>
[/field:sonchannel2]
</ul>
</li>
[/field:sonchannel1]
</ul>
</li>
[/field:sonchannel0]
</ul>
</li>
{/dede:channel}
</ul>Just change the number in the above typeid to the ID of your major category. Because I couldn’t find it in the DEDE official forum, I posted it here. I hope it can be helpful. Convenient and useful.
Note: Please make a backup before modifying the file in case of errors. Some quotation marks in the above code may be automatically converted to full-width. Please modify it to half-width, or you can ask Xiao Han to obtain the modified file.
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