给 Discuz X3.2 门户添加四级频道栏目

默认 Discuz X 门户支持三级栏目的，但是如果添加四级需要修改程序才可以，具体是
修改 source/admincp/admincp_portalcategory.php 的 751-767 行代码，把

if($level == 2) {
$class = $last ? 'lastchildboard' : 'childboard';
$return = '<tr
id="cat'.$value['catid'].'"><td> </td><td
><input type="text"
name="neworder['.$value['catid'].']" value="'.$value['displayorder'].'"
/></td><td><div ">'.
'<input type="text" name="name['.$value['catid'].']" value="'.$value['catname'].'" />'.
'</div>'.
'</td><td>'.$value['articles'].'</td>'.
'<td>'.(empty($value['disallowpublish']) ? cplang('yes') : cplang('no')).'</td>'.
'<td>'.(!empty($value['allowcomment']) ? cplang('yes') : cplang('no')).'</td>'.
'<td>'.(empty($value['closed']) ? cplang('yes') : cplang('no')).'</td>'.
'<td><input type="radio"
name="newsetindex" value="'.$value['catid'].'" '.($value['caturl'] ==
$_G['setting']['defaultindex'] ? 'checked="checked"':'').'
/></td>'.
'<td><a href="'.$value['caturl'].'" target="_blank">'.cplang('view').'</a> 
<a
href="'.ADMINSCRIPT.'?action=portalcategory&operation=edit&catid='.$value['catid'].'">'.cplang('edit').'</a> 
<a
href="'.ADMINSCRIPT.'?action=portalcategory&operation=move&catid='.$value['catid'].'">'.cplang('portalcategory_move').'</a> 
<a
href="'.ADMINSCRIPT.'?action=portalcategory&operation=delete&catid='.$value['catid'].'">'.cplang('delete').'</a> 
<a
href="'.ADMINSCRIPT.'?action=diytemplate&operation=perm&targettplname=portal/list_'.$value['catid'].'&tpldirectory='.getdiydirectory($value['primaltplname']).'">'.cplang('portalcategory_blockperm').'</a></td>
<td><a
href="'.ADMINSCRIPT.'?action=article&operation=list&&catid='.$value['catid'].'">'.cplang('portalcategory_articlemanagement').'</a> 
<a
href="'.ADMINSCRIPT.'?action=portalcategory&operation=perm&catid='.$value['catid'].'">'.cplang('portalcategory_articleperm').'</a>'.$publish.'</td></tr>';

替换为

if ($level == 3) {
$class = $last ? 'lastthirdboard' : 'thirdboard';
$return = '<tr
id="cat'.$value['catid'].'"><td> </td><td
><input type="text"
name="neworder['.$value['catid'].']" value="'.$value['displayorder'].'"
/></td><td><div ">'.
'<input type="text" name="name['.$value['catid'].']" value="'.$value['catname'].'" />'.
'</div>'.
'</td><td>'.$value['articles'].'</td>'.
'<td>'.(empty($value['disallowpublish']) ? cplang('yes') : cplang('no')).'</td>'.
'<td>'.(!empty($value['allowcomment']) ? cplang('yes') : cplang('no')).'</td>'.
'<td>'.(empty($value['closed']) ? cplang('yes') : cplang('no')).'</td>'.
'<td><input type="radio"
name="newsetindex" value="'.$value['catid'].'" '.($value['caturl'] ==
$_G['setting']['defaultindex'] ? 'checked="checked"':'').'
/></td>'.
'<td><a href="'.$value['caturl'].'" target="_blank">'.cplang('view').'</a> 
<a
href="'.ADMINSCRIPT.'?action=portalcategory&operation=edit&catid='.$value['catid'].'">'.cplang('edit').'</a> 
<a
href="'.ADMINSCRIPT.'?action=portalcategory&operation=move&catid='.$value['catid'].'">'.cplang('portalcategory_move').'</a> 
<a
href="'.ADMINSCRIPT.'?action=portalcategory&operation=delete&catid='.$value['catid'].'">'.cplang('delete').'</a> 
<a
href="'.ADMINSCRIPT.'?action=diytemplate&operation=perm&targettplname=portal/list_'.$value['catid'].'&tpldirectory='.getdiydirectory($value['primaltplname']).'">'.cplang('portalcategory_blockperm').'</a></td>
<td><a
href="'.ADMINSCRIPT.'?action=article&operation=list&&catid='.$value['catid'].'">'.cplang('portalcategory_articlemanagement').'</a> 
<a
href="'.ADMINSCRIPT.'?action=portalcategory&operation=perm&catid='.$value['catid'].'">'.cplang('portalcategory_articleperm').'</a>'.$publish.'</td></tr>';
}elseif($level == 2) {
$class = $last ? 'lastchildboard' : 'childboard';
$return = '<tr
id="cat'.$value['catid'].'"><td> </td><td
><input type="text"
name="neworder['.$value['catid'].']" value="'.$value['displayorder'].'"
/></td><td><div ">'.
'<input type="text" name="name['.$value['catid'].']" value="'.$value['catname'].'" />'.
'<a
href="'.ADMINSCRIPT.'?action=portalcategory&operation=add&upid='.$value['catid'].'">'.cplang('portalcategory_addfourthcategory').'</a></div>'.
'</td><td>'.$value['articles'].'</td>'.
'<td>'.(empty($value['disallowpublish']) ? cplang('yes') : cplang('no')).'</td>'.
'<td>'.(!empty($value['allowcomment']) ? cplang('yes') : cplang('no')).'</td>'.
'<td>'.(empty($value['closed']) ? cplang('yes') : cplang('no')).'</td>'.
'<td><input type="radio"
name="newsetindex" value="'.$value['catid'].'" '.($value['caturl'] ==
$_G['setting']['defaultindex'] ? 'checked="checked"':'').'
/></td>'.
'<td><a href="'.$value['caturl'].'" target="_blank">'.cplang('view').'</a> 
<a
href="'.ADMINSCRIPT.'?action=portalcategory&operation=edit&catid='.$value['catid'].'">'.cplang('edit').'</a> 
<a
href="'.ADMINSCRIPT.'?action=portalcategory&operation=move&catid='.$value['catid'].'">'.cplang('portalcategory_move').'</a> 
<a
href="'.ADMINSCRIPT.'?action=portalcategory&operation=delete&catid='.$value['catid'].'">'.cplang('delete').'</a> 
<a
href="'.ADMINSCRIPT.'?action=diytemplate&operation=perm&targettplname=portal/list_'.$value['catid'].'&tpldirectory='.getdiydirectory($value['primaltplname']).'">'.cplang('portalcategory_blockperm').'</a></td>
<td><a
href="'.ADMINSCRIPT.'?action=article&operation=list&&catid='.$value['catid'].'">'.cplang('portalcategory_articlemanagement').'</a> 
<a
href="'.ADMINSCRIPT.'?action=portalcategory&operation=perm&catid='.$value['catid'].'">'.cplang('portalcategory_articleperm').'</a>'.$publish.'</td></tr>';
for($i=0,$L=count($value['children']); $i<$L; $i++) {
$return .= showcategoryrow($value['children'][$i], 3, $i==$L-1);
}

然后再在 staticimageadmincpadmincp.css 的 317 行后添加

.thirdboard{ padding-left:165px; background:url(bg_repno.gif) no-repeat -130px -550px; }
.lastthirdboard{ padding-left:165px; background:url(bg_repno.gif) no-repeat -130px -600px; }

在 sourcelanguagelang_admincp.php 的 6590 下添加