kmaya:仿cnbeta文章列表显示栏目缩略图的方

仿cnbeta的关键是每个栏目对应一个缩略图,下面是我的一个思路:

首先通过后台SQL命令行工具给“栏目”对应的表:dede_arctype表加一个字段,用来放图片
具体命令是:

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ALTER TABLE dede_arctype  ADD typelitpic  varchar(80) NOT NULL DEFAULT ‘’;

将来图片的地址就是对应存放在typelitpic字段,你可以根据自己的喜欢取名;

接着就是让{dede:arclist /} 能获取 dede_arctype.typelitpic里的值
方法是在后台:◇标签源码碎片管理 >> 修改标签
修改 arclist.lib.php

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<?php

if(!defined('DEDEINC')) exit('Request Error!');

function lib_arclist(&$ctag,&$refObj)
{
global $envs;

$autopartid = 0;
$tagname = $ctag->GetTagName();
$channelid = $ctag->GetAtt('channelid');

if($tagname=='imglist' || $tagname=='imginfolist') {
$listtype = 'image';
}
else if($tagname=='specart') {
$channelid = -1;
$listtype='';
}
else if($tagname=='coolart') {
$listtype = 'commend';
}
else if($tagname=='autolist') {
$autopartid = $ctag->GetAtt('partsort');
}
else {
$listtype = $ctag->GetAtt('type');
}

//排序
if($ctag->GetAtt('sort')!='') $orderby = $ctag->GetAtt('sort');
else if($tagname=='hotart') $orderby = 'click';
else $orderby = $ctag->GetAtt('orderby');

//对相应的标记使用不同的默认innertext
if(trim($ctag->GetInnerText()) != '') $innertext = $ctag->GetInnerText();
else if($tagname=='imglist') $innertext = GetSysTemplets('part_imglist.htm');
else if($tagname=='imginfolist') $innertext = GetSysTemplets('part_imginfolist.htm');
else $innertext = GetSysTemplets("part_arclist.htm");

//兼容titlelength
if($ctag->GetAtt('titlelength')!='') $titlelen = $ctag->GetAtt('titlelength');
else $titlelen = $ctag->GetAtt('titlelen');

//兼容infolength
if($ctag->GetAtt('infolength')!='') $infolen = $ctag->GetAtt('infolength');
else $infolen = $ctag->GetAtt('infolen');

$typeid = trim($ctag->GetAtt('typeid'));
if(empty($typeid)) {
$typeid = ( isset($refObj->Fields['typeid']) ? $refObj->Fields['typeid'] : $envs['typeid'] );
}

if($listtype=='autolist') {
$typeid = lib_GetAutoChannelID($ctag->GetAtt('partsort'),$typeid);
}

if($ctag->GetAtt('att')=='') {
$flag = $ctag->GetAtt('flag');
}
else {
$flag = $ctag->GetAtt('att');
}

return lib_arclistDone
(
$refObj, $ctag, $typeid, $ctag->GetAtt('row'), $ctag->GetAtt('col'), $titlelen, $infolen,
$ctag->GetAtt('imgwidth'), $ctag->GetAtt('imgheight'), $listtype, $orderby,
$ctag->GetAtt('keyword'), $innertext, $envs['aid'], $ctag->GetAtt('idlist'), $channelid,
$ctag->GetAtt('limit'), $flag,$ctag->GetAtt('orderway'), $ctag->GetAtt('subday'), $ctag->GetAtt('noflag')
);
}

function lib_arclistDone(&$refObj, &$ctag, $typeid=0, $row=10, $col=1, $titlelen=30, $infolen=160,
$imgwidth=120, $imgheight=90, $listtype='all', $orderby='default', $keyword='',
$innertext='', $arcid=0, $idlist='', $channelid=0, $limit='', $att='', $order='desc', $subday=0, $noflag='')
{
global $dsql,$PubFields,$cfg_keyword_like,$cfg_index_cache,$_arclistEnv,$envs,$cfg_cache_type;
$row = AttDef($row,10);
$titlelen = AttDef($titlelen,30);
$infolen = AttDef($infolen,160);
$imgwidth = AttDef($imgwidth,120);
$imgheight = AttDef($imgheight,120);
$listtype = AttDef($listtype,'all');
$arcid = AttDef($arcid,0);
$channelid = AttDef($channelid,0);
$orderby = AttDef($orderby,'default');
$orderWay = AttDef($order,'desc');
$subday = AttDef($subday,0);
$line = $row;
$orderby=strtolower($orderby);
$keyword = trim($keyword);
$innertext = trim($innertext);

$tablewidth=$ctag->GetAtt("tablewidth");
if($tablewidth=="") $tablewidth = 100;
if(empty($col)) $col = 1;
$colWidth = ceil(100/$col);
$tablewidth = $tablewidth."%";
$colWidth = $colWidth."%";

if($innertext=='') $innertext = GetSysTemplets('part_arclist.htm');
if( @$ctag->GetAtt('getall') == 1 ) $getall = 1;
else $getall = 0;

if($att=='0') $att='';
if($att=='3') $att='f';
if($att=='1') $att='h';

$orwheres = array();
$maintable = '#@__archives';
//按不同情况设定SQL条件 排序方式
if($idlist=='')
{
if($orderby=='near' && $cfg_keyword_like=='N') { $keyword=''; }

//时间限制(用于调用最近热门文章、热门评论之类),这里的时间只能计算到天,否则缓存功能将无效
if($subday > 0)
{
$ntime = gmmktime(0, 0, 0, gmdate('m'), gmdate('d'), gmdate('Y'));
$limitday = $ntime - ($subday * 24 * 3600);
$orwheres[] = " arc.senddate > $limitday ";
}
//关键字条件
if($keyword!='')
{
$keyword = str_replace(',', '|', $keyword);
$orwheres[] = " CONCAT(arc.title,arc.keywords) REGEXP '$keyword' ";
}
//文档属性
if(eregi('commend',$listtype)) $orwheres[] = " FIND_IN_SET('c', arc.flag)>0  ";
if(eregi('image',$listtype)) $orwheres[] = " FIND_IN_SET('p', arc.flag)>0  ";
if($att != '') {
$flags = explode(',', $att);
for($i=0; isset($flags[$i]); $i++) $orwheres[] = " FIND_IN_SET('{$flags[$i]}', arc.flag)>0 ";
}

if(!empty($typeid))
{
//指定了多个栏目时,不再获取子类的id
if( ereg(',', $typeid) )
{
//指定了getall属性或主页模板例外
if($getall==1 || empty($refObj->Fields['typeid']))
{
$typeids = explode(',', $typeid);
foreach($typeids as $ttid) {
$typeidss[] = GetSonIds($ttid);
}
$typeidStr = join(',', $typeidss);
$typeidss = explode(',', $typeidStr);
$typeidssok = array_unique($typeidss);
$typeid = join(',', $typeidssok);
}
$orwheres[] = " arc.typeid in ($typeid) ";
}
else
{
//处理交叉栏目
$CrossID = '';
if($ctag->GetAtt('cross')=='1')
{
$arr = $dsql->GetOne("Select `id`,`topid`,`cross`,`crossid`,`ispart`,`typename` From `#@__arctype` where id='$typeid' ");
if( $arr['cross']==0 || ( $arr['cross']==2 && trim($arr['crossid']=='') ) )
{
$orwheres[] = ' arc.typeid in ('.GetSonIds($typeid).')';
}
else
{
$selquery = '';
if($arr['cross']==1) {
$selquery = "Select id,topid From `#@__arctype` where typename like '{$arr['typename']}' And id<>'{$typeid}' And topid<>'{$typeid}'  ";
}
else {
$arr['crossid'] = ereg_replace('[^0-9,]','',trim($arr['crossid']));
if($arr['crossid']!='') $selquery = "Select id,topid From `#@__arctype` where id in('{$arr['crossid']}') And id<>'{$typeid}' And topid<>'{$typeid}'  ";
}
if($selquery!='')
{
$dsql->SetQuery($selquery);
$dsql->Execute();
while($arr = $dsql->GetArray())
{
$CrossID .= ($CrossID=='' ? $arr['id'] : ','.$arr['id']);
}
}
}
}
if($CrossID=='') $orwheres[] = ' arc.typeid in ('.GetSonIds($typeid).')';
else $orwheres[] = ' arc.typeid in ('.GetSonIds($typeid).','.$CrossID.')';
}
}

//频道ID
if(eregi('spec', $listtype)) $channelid==-1;

if(!empty($channelid)) $orwheres[] = " And arc.channel = '$channelid' ";

if(!empty($noflag)) $orwheres[] = " FIND_IN_SET('$noflag', arc.flag)<1 ";

$orwheres[] = ' arc.arcrank > -1 ';

//由于这个条件会导致缓存功能失去意义,因此取消
//if($arcid!=0) $orwheres[] = " arc.id<>'$arcid' ";
}

//文档排序的方式
$ordersql = '';
if($orderby=='hot' || $orderby=='click') $ordersql = " order by arc.click $orderWay";
else if($orderby == 'sortrank' || $orderby=='pubdate') $ordersql = " order by arc.sortrank $orderWay";
else if($orderby == 'id') $ordersql = "  order by arc.id $orderWay";
else if($orderby == 'near') $ordersql = " order by ABS(arc.id - ".$arcid.")";
else if($orderby == 'lastpost') $ordersql = "  order by arc.lastpost $orderWay";
else if($orderby == 'scores') $ordersql = "  order by arc.scores $orderWay";
else if($orderby == 'rand') $ordersql = "  order by rand()";
else $ordersql = " order by arc.sortrank $orderWay";

//limit条件
$limit = trim(eregi_replace('limit','',$limit));
if($limit!='') $limitsql = " limit $limit ";
else $limitsql = " limit 0,$line ";

$orwhere = '';
if(isset($orwheres[0])) {
$orwhere = join(' And ',$orwheres);
$orwhere = ereg_replace("^ And",'',$orwhere);
$orwhere = ereg_replace("And[ ]{1,}And",'And ',$orwhere);
}
if($orwhere!='') $orwhere = " where $orwhere ";

//获取附加表信息
$addfield = trim($ctag->GetAtt('addfields'));
$addfieldsSql = '';
$addfieldsSqlJoin = '';
if($addfield != '' && !empty($channelid))
{
$row = $dsql->GetOne("Select addtable From `#@__channeltype` where id='$channelid' ");
if(isset($row['addtable']) && trim($row['addtable']) != '')
{
$addtable = trim($row['addtable']);
$addfields = explode(',', $addfield);
$row['addtable'] = trim($row['addtable']);
$addfieldsSql = ",addf.".join(',addf.', $addfields);
$addfieldsSqlJoin = " left join `$addtable` addf on addf.aid = arc.id ";
}
}

$query = "Select arc.*,tp.typedir,tp.typename,tp.typelitpic,tp.corank,tp.isdefault,tp.defaultname,tp.namerule,
tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath
$addfieldsSql
from `$maintable` arc left join `#@__arctype` tp on arc.typeid=tp.id
$addfieldsSqlJoin
$orwhere $ordersql $limitsql";

$md5hash = md5($query);
$stylehash = ($cfg_cache_type=='content' ? md5($innertext) : '');
$needSaveCache = true;

if($idlist!='' || $GLOBALS['_arclistEnv']=='index' || $cfg_index_cache==0)
{
$needSaveCache = false;
}
else
{
$idlist = GetArclistCache($md5hash, $stylehash);
if($idlist != '') {
$needSaveCache = false;
}
//如果使用的是内容缓存,直接返回结果
if($cfg_cache_type=='content' && $idlist != '')
{
$idlist = ($idlist==0 ? '' : $idlist);
return $idlist;
}
}

//指定了id或使用缓存中的id
if($idlist != '')
{
$query = "Select arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule,tp.namerule2,tp.ispart,
tp.moresite,tp.siteurl,tp.sitepath,tp.typelitpic
$addfieldsSql
from `$maintable` arc left join `#@__arctype` tp on arc.typeid=tp.id
$addfieldsSqlJoin
where arc.id in($idlist) $ordersql ";
}

$dsql->SetQuery($query);
$dsql->Execute('al');
$artlist = '';
if($col>1) $artlist = "<table width='$tablewidth' border='0' cellspacing='0' cellpadding='0'>\r\n";
$dtp2 = new DedeTagParse();
$dtp2->SetNameSpace('field', '[', ']');
$dtp2->LoadString($innertext);
$GLOBALS['autoindex'] = 0;
$ids = array();
for($i=0; $i<$line; $i++)
{
if($col>1) $artlist .= "<tr>\r\n";
for($j=0; $j<$col; $j++)
{
if($col>1) $artlist .= "    <td width='$colWidth'>\r\n";
if($row = $dsql->GetArray("al"))
{
$ids[] = $row['id'];
//处理一些特殊字段
$row['info'] = $row['infos'] = cn_substr($row['description'],$infolen);
$row['id'] =  $row['id'];

if($row['corank'] > 0 && $row['arcrank']==0)
{
$row['arcrank'] = $row['corank'];
}

$row['filename'] = $row['arcurl'] = GetFileUrl($row['id'],$row['typeid'],$row['senddate'],$row['title'],$row['ismake'],
$row['arcrank'],$row['namerule'],$row['typedir'],$row['money'],$row['filename'],$row['moresite'],$row['siteurl'],$row['sitepath']);

$row['typeurl'] = GetTypeUrl($row['typeid'],$row['typedir'],$row['isdefault'],$row['defaultname'],$row['ispart'],
$row['namerule2'],$row['moresite'],$row['siteurl'],$row['sitepath']);

if($row['litpic'] == '-' || $row['litpic'] == '')
{
$row['litpic'] = $GLOBALS['cfg_cmspath'].'/images/defaultpic.gif';
}
if(!eregi("^http://",$row['litpic']) && $GLOBALS['cfg_multi_site'] == 'Y')
{
$row['litpic'] = $GLOBALS['cfg_mainsite'].$row['litpic'];
}
if($row['typelitpic'] == '-' || $row['typelitpic'] == '')
{
$row['typelitpic'] = $GLOBALS['cfg_cmspath'].'/images/defaultpic.gif';
}
if(!eregi("^http://",$row['typelitpic']) && $GLOBALS['cfg_multi_site'] == 'Y')
{
$row['typelitpic'] = $GLOBALS['cfg_mainsite'].$row['typelitpic'];
}
$row['picname'] = $row['litpic'];
$row['stime'] = GetDateMK($row['pubdate']);
$row['typelink'] = "<a href='".$row['typeurl']."'>".$row['typename']."</a>";
$row['image'] = "<img src='".$row['picname']."' border='0' width='$imgwidth' height='$imgheight' alt='".ereg_replace("['><]","",$row['title'])."'>";
$row['imglink'] = "<a href='".$row['filename']."'>".$row['image']."</a>";
$row['fulltitle'] = $row['title'];
$row['title'] = cn_substr($row['title'],$titlelen);
if($row['color']!='') $row['title'] = "<font color='".$row['color']."'>".$row['title']."</font>";
if(ereg('b',$row['flag'])) $row['title'] = "<strong>".$row['title']."</strong>";
//$row['title'] = "<b>".$row['title']."</b>";

$row['textlink'] = "<a href='".$row['filename']."'>".$row['title']."</a>";

$row['plusurl'] = $row['phpurl'] = $GLOBALS['cfg_phpurl'];
$row['memberurl'] = $GLOBALS['cfg_memberurl'];
$row['templeturl'] = $GLOBALS['cfg_templeturl'];

if(is_array($dtp2->CTags))
{
foreach($dtp2->CTags as $k=>$ctag)
{
if($ctag->GetName()=='array') {
//传递整个数组,在runphp模式中有特殊作用
$dtp2->Assign($k,$row);
}
else {
if(isset($row[$ctag->GetName()])) $dtp2->Assign($k,$row[$ctag->GetName()]);
else $dtp2->Assign($k,'');
}
}
$GLOBALS['autoindex']++;
}

$artlist .= $dtp2->GetResult()."\r\n";
}//if hasRow
else{
$artlist .= '';
}
if($col>1) $artlist .= "    </td>\r\n";
}//Loop Col
if($col>1) $i += $col - 1;
if($col>1) $artlist .= "    </tr>\r\n";
}//loop line
if($col>1) $artlist .= "    </table>\r\n";
$dsql->FreeResult("al");
//保存ID缓存
$idsstr = join(',',$ids);
if($needSaveCache)
{
if($idsstr=='') $idsstr = '0';
if($cfg_cache_type=='content' && $idsstr!='0') {
$idsstr = $artlist;
}
$inquery = "INSERT INTO `#@__arccache`(`md5hash`,`stylehash`,`uptime`,`cachedata`) VALUES ('".$md5hash."','$stylehash', '".time()."', '$idsstr'); ";
$dsql->ExecuteNoneQuery("Delete From `#@__arccache` where md5hash='".$md5hash."' ");
$dsql->ExecuteNoneQuery($inquery);
}
return $artlist;
}

//查询缓存
function GetArclistCache($md5hash, $stylehash)
{
global $dsql,$envs,$cfg_makesign_cache,$cfg_index_cache,$cfg_cache_type;
if($cfg_index_cache <= 0) return '';
if(isset($envs['makesign']) && $cfg_makesign_cache=='N') return '';
$mintime = time() - $cfg_index_cache;
if($cfg_cache_type=='id') {
$arr = $dsql->GetOne("Select cachedata,uptime From `#@__arccache` where md5hash = '$md5hash' ");
}
else {
$arr = $dsql->GetOne("Select cachedata,uptime From `#@__arccache` where md5hash = '$md5hash' And stylehash='$stylehash' ");
}
if(!is_array($arr)) {
return '';
}
else if($arr['uptime'] < $mintime) {
return '';
}
else {
return $arr['cachedata'];
}
}

function lib_GetAutoChannelID($sortid,$topid)
{
global $dsql;
if(empty($sortid)) $sortid = 1;
$getstart = $sortid - 1;
$row = $dsql->GetOne("Select id,typename From #@__arctype where reid='{$topid}' And ispart<2 And ishidden<>'1' order by sortrank asc limit $getstart,1");
if(!is_array($row)) return 0;
else return $row['id'];
}
?>

剩下的工作就 是在网站后台的“网站栏目管理”功能块里添加对栏目缩略图的管理,要改的文件就是网站根目录dede里的catalog_add.php和 catalog_edit.php两个文件,本人直接把“发表文章”里的那个传缩略图的代码直接复制过来了,让缩略图存入到文章附加表中,哪位高手有什么 更好的方法介绍一下,不胜感激 呵呵:)

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