dedecms织梦tag+keyword调用相关文章

 官方的dede:likearticle并没有那么精准的输出相关文章，下面我们自定义一个类库文件来实现精准获取相关文章
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)非常适合SEO
在 \include\taglib\ 下添加一个liketags.lib.php 代码如下
    global $dsql;
    //属性处理
    $attlist="row|12,titlelen|30,infolen|250,col|1,tablewidth|100,mytypeid|0,byabs|0,imgwidth|120,imgheight|90,flag|";
    FillAttsDefault($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!='')
        {
            $dsql->Execute("me", "Select aid From `dede_taglist` where tid in($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);
            $query = "Select arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule,
            tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath
            from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id
            where arc.id in($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";
    }
    $dtp2 = new DedeTagParse();
    $dtp2->SetNameSpace('field', '[', ']');
    $dtp2->LoadString($innertext);
    $GLOBALS['autoindex'] = 0;
    $line = $row;
    for($i=0; $i < $line; $i++)
    {
        if($col>1) $artlist .= "\r\n";
        for($j=0; $j < $col; $j++)
        {
            if($col>1) $artlist .= "    \r\n";
        }
        //Loop Col
        if($col>1) $i += $col - 1;
        if($col>1) $artlist .= "    \r\n";
    }
    //loop line
    if($col>1) $artlist .= "   

\r\n";             if($row = $dsql->GetArray("al"))             {                 $ids[] = $row['id'];                 //处理一些特殊字段 www.lol9.cn织梦模板                 $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(!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['title'])."'>";                 $row['imglink'] = "".$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 .= "

\r\n";
    $dsql->FreeResult("al");
    return $artlist;}
 
前台模板调用    
{dede:liketags row='3' mytypeid='6' eregtype='all|tag|keyword' titlelen='250' infolen='250'}

[field:title/]

[field:description /]

{/dede:liketags}