dedecms网站栏目增加缩略图的方法

dede/catalog_add.php　
dede/catalog_edit.php
dede/templets/catalog_add.htm
dede/templets/catalog_edit.htm

alter table `dede_arctype` add `typeimg` char(100) NOT NULL default '';
打开dede/catalog_add.php

$queryTemplate = "insert into `dede_arctype`

(reid,topid,sortrank,typename,typedir,

(reid,topid,sortrank,typename,typedir,typeimg,

('~reid~','~topid~','~rank~','~typename~','~typedir~',

('~reid~','~topid~','~rank~','~typename~','~typedir~','~typeimg~',

$upquery = "Update `dede_arctype` set

`typeimg`='$typeimg',

<tr> </p> <p> <td height="26">列表命名规则：</td> 
<td> 
<input name="namerule2" type="text" id="namerule2" value="{typedir}/list_{tid}_{page}.html" class="pubinputs" style="width:250px" /> 
<img src="img/help.gif" alt="帮助" width="16" height="16" border="0" style="cursor:pointer" onClick="ShowHide('helpvar3')"/></td> 
</tr>

<tr> 
<td height="65">栏目图片：</td> 
<td> 
<input name="typeimg" type="text" style="width:250px" id="typeimg" class="alltxt" value="" /> 
<input type="button" name="set9" value="浏览... "class="coolbg np" style="width:60px" onClick="SelectTemplets('form1.typeimg&activepath=%2Ftemplets%2Ftypeimg&img=yes');" /> 
(栏目模板里用{dede:field.typeimg /}调用) 
</td> 
</tr>

<tr> 
<td height="26">列表命名规则：</td> 
<td> <input name="namerule2" type="text" id="namerule2" value="<?php echo $myrow['namerule2']?>" size="40" class="iptxt" /> 
<img src="img/help.gif" alt="帮助" width="16" height="16" border="0" style="cursor:pointer" onClick="ShowHide('helpvar3')"/></td> 
</tr>

<tr> 
<td height="65">栏目图片：</td> 
<td> 
<input name="typeimg" type="text" style="width:250px" id="typeimg" class="alltxt" value="<?php echo $myrow['typeimg']?>" /> 
<input type="button" name="set9" value="浏览... "class="coolbg np" style="width:60px" onClick="SelectImages('form1.typeimg&activepath=%2Ftemplets%2Ftypeimg&img=yes');" /> 
(栏目模板里用{dede:field.typeimg /}调用) 
</td> 
</tr>

if($this->ChannelUnit->ChannelInfos['issystem']!=-1)

$query = "Select arc.*,tp.reid,tp.typedir,ch.addtable from `dede_archives` arc left join dede_arctype tp on tp.id=arc.typeid left join dede_channeltype as ch on arc.channel = ch.id where arc.id='$aid' "; 
$this->Fields = $this->dsql->GetOne($query);

$query = "Select arc.*,tp.reid,tp.typedir,tp.typeimg,ch.addtable 
from `dede_archives` arc 
left join dede_arctype tp on tp.id=arc.typeid 
left join dede_channeltype as ch on arc.channel = ch.id 
where arc.id='$aid' "; 
$this->Fields = $this->dsql->GetOne($query);