DEDE官方的dede:likearticle是利用文章中输入的关键词或者自动分词形成的关键词来关联文章，但是有时候自动生成的关键词并不精确，造成关联不准，这里我们通过自定义一个类库文件来实现精准获取相关文章
可以单用tag来调用相关文章,也可用tag+keyword来调用相关文章(默认tag优先于keyword,可以自己排序)
在 \include\taglib\ 下添加一个liketags.lib.php 代码如下
<?php if(!defined('DEDEINC')) exit('Request Error!');
function lib_liketags(&$ctag,&$refObj)
{
global $dsql;
//属性处理
$attlist="row|12,titlelen|30,infolen|250,col|1,tablewidth|100,mytypeid|0,byabs|0,imgwidth|1,imgheight|90,flag|";
FillAttsDefault($ctag->CAttribute->Items,$attlist);
extract($ctag->CAttribute->Items, EXTR_SKIP);
$revalue = '';
if(empty($tablewidth)) $tablewidth = 100;
if(empty($col)) $col = 1;
$colWidth = ceil(100/$col);
$tablewidth = $tablewidth."%";
$colWidth = $colWidth."%";
$orwheres = '';
if($flag != '') {
$flags = explode(',', $flag);
for($i=0; isset($flags[$i]); $i++) $orwheres .= " AND FIND_IN_SET('{$flags[$i]}', arc.flag)>0 ";
}
$ids = array();
$tids = array();
if(!empty($refObj->Fields['tags'])) {
$keyword = $refObj->Fields['tags'];
}
else {
$keyword = ( !empty($refObj->Fields['keywords']) ? $refObj->Fields['keywords'] : '' );
}
$typeid = ( !empty($mytypeid) ? $mytypeid : 0 );
if(empty($typeid))
{
if(!empty($refObj->Typelink->TypeInfos['reid'])) {
$typeid = $refObj->Typelink->TypeInfos['reid'];
}
else {
if(!empty($refObj->Fields['typeid'])) $typeid = $refObj->Fields['typeid'];
}
}
if( !empty($typeid) && !preg_match('#,#', $typeid) ) {
$typeid = GetSonIds($typeid);
}
if(!empty($refObj->Fields['tags']) && $eregtype != 'keyword' )
{
$tags = explode(',', addslashes($refObj->Fields['tags']));
$getsql = " tag like '".join("' OR tag like '", $tags)."' ";
$dsql->Execute('me', "Select * From `dede_tagindex` where $getsql ");
while($arow = $dsql->GetArray('me'))
{
$tids[] = $arow['id'];
}
$tid = join(',', $tids);
if($tid!='')
{
061
$dsql->Execute("me", "Select aid From `dede_taglist` where tid in($tid) And arcrank > -1 group by aid order by aid desc");
while($arow = $dsql->GetArray("me"))
{
$ids[] = $arow['aid'];
$arcid = $refObj->Fields['aid'];
}
}
}
if($eregtype == 'tag' && count($ids) == 0 )
{
return;
}
else
{
if(count($ids) > 0)
{
if(!empty($typeid))
{
$typeid = " And arc.typeid in($typeid) And arc.id$arcid ";
}
$idsStr = join(',', $ids);
$query = "Select arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule,
tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath
from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id
where arc.arcrank>-1 and arc.id in($idsStr) $typeid order by arc.id desc limit 0, $row";
}
else
{
$limitRow = $row - count($ids);
$keyword = '';
if(!empty($refObj->Fields['keywords']))
{
$keywords = explode(',' , trim($refObj->Fields['keywords']));
$keyword = '';
$n = 1;
foreach($keywords as $k)
{
if($n > 3) break;
if(trim($k)=='') continue;
else $k = addslashes($k);
$keyword .= ($keyword=='' ? " CONCAT(arc.keywords,' ',arc.title) like '%$k%' " : " OR CONCAT(arc.keywords,' ',arc.title) like '%$k%' ");
$n++;
}
}
$arcid = (!empty($refObj->Fields['id']) ? $refObj->Fields['aid'] : 0);
if( empty($arcid) || $byabs==0 )
{
$orderquery = " order by arc.id desc ";
}
else
{
$orderquery = " order by ABS(arc.id - ".$arcid.") ";
}
if($keyword != '')
{
if(!empty($typeid))
{
$typeid = " And arc.typeid in($typeid) And arc.id$arcid ";
}
$query = "Select arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule,
tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath
from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id
where arc.arcrank>-1 and ($keyword) $typeid $orderquery limit 0, $row";
}
else
{
if(!empty($typeid))
{
$typeid = " arc.typeid in($typeid) And arc.id$arcid ";
}
$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
from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id
where arc.arcrank>-1 and $typeid $orderquery limit 0, $row";
}
}
}
$innertext = trim( $ctag->GetInnerText() );
if($innertext=='') $innertext = GetSysTemplets('part_arclist.htm');
$dsql->SetQuery($query);
$dsql->Execute('al');
$artlist = '';
if($col > 1){
$artlist = "| \r\n"; if($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'], $row['namerule'],$row['moresite'],$row['siteurl'],$row['sitepath']); if($row['litpic'] == '-' || $row['litpic'] == '') { $row['litpic'] = $GLOBALS['cfg_cmspath'].'/images/defaultpic.gif'; } if(!preg_match("#^http:\/\/#i", $row['litpic']) && $GLOBALS['cfg_multi_site'] == 'Y') { $row['litpic'] = $GLOBALS['cfg_mainsite'].$row['litpic']; } $row['picname'] = $row['litpic']; $row['stime'] = GetDateMK($row['pubdate']); $row['typelink'] = "".$row['typename'].""; $row['image'] = ""; $row['imglink'] = "".$row['image'].""; $row['fulltitle'] = $row['title']; $row['title'] = cn_substr($row['title'], $titlelen); if($row['color']!='') $row['title'] = "".$row['title'].""; if(preg_match('#b#', $row['flag'])) $row['title'] = "".$row['title'].""; $row['textlink'] = "".$row['title'].""; $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') { $dtp2->Assign($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 .= " |
前台模板调用文章来源：https://www.toymoban.com/news/detail-432350.html
{dede:liketags row='3' mytypeid='6' eregtype='all|tag|keyword' titlelen='250' infolen='250'}
[field:title/]
[field:description /]
{/dede:liketags}
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