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  • 织梦文章tag标签或者文章keyword关键字调用相关文章

    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,支持直接输出自定义字段,支持flag文章属性,非常适合SEO
     
    eregtype=’all|tag|keyword’,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 文件代码如下
     
    <?php
    if(!defined(‘DEDEINC’)) exit(‘Request Error!’);
    function lib_liketags(&$ctag,&$refObj)
    {
        global $dsql,$envs;
        
        //属性处理
        $attlist=”row|12,titlelen|30,infolen|250,col|1,tablewidth|100,typeid|0,byabs|0,imgwidth|120,imgheight|90,flag|”;
        FillAttsDefault($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’] : ” );
        }
        
        $typeid = ( !empty($typeid) ? $typeid : 0 );
        if(empty($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’];
    }
    }
     
    //获得附加表的相关信息
    $addField = “”;
    $addJoin = “”;
    if(is_object($refObj->ChannelUnit))
    {
    $addtable  = $refObj->ChannelUnit->ChannelInfos[‘addtable’];
    if($addtable!=””)
    {
    $addJoin = ” LEFT JOIN $addtable ON arc.id = “.$addtable.”.aid “;
    $addField = “”;
    $fields = explode(“,”,$refObj->ChannelUnit->ChannelInfos[‘listfields’]);
    foreach($fields as $k=>$v)
    {
    $nfields[$v] = $k;
    }
    foreach($refObj->ChannelUnit->ChannelFields as $k=>$arr)
    {
    if(isset($nfields[$k]))
    {
    if(!empty($arr[‘rename’]))
    {
    $addField .= “,”.$addtable.”.”.$k.” as “.$arr[‘rename’];
    }
    else
    {
    $addField .= “,”.$addtable.”.”.$k;
    }
    }
    }
    }
    }
     
    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 $addField 
    from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id $addJoin 
    where arc.arcrank>-1 and arc.id in($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 $addField 
    from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id $addJoin 
    where arc.arcrank>-1 and ($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 $addField 
    from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id $addJoin 
    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){
            $artlist = “<table width=’$tablewidth’ border=’0′ cellspacing=’0′ cellpadding=’0′>”;
        }
        $dtp2 = new DedeTagParse();
        $dtp2->SetNameSpace(‘field’, ‘[‘, ‘]’);
        $dtp2->LoadString($innertext);
        $GLOBALS[‘autoindex’] = 0;
        $line = $row;
        for($i=0; $i < $line; $i++)
        {
            if($col>1) $artlist .= “<tr>”;
            for($j=0; $j < $col; $j++)
            {
                if($col>1) $artlist .= ”    <td width=’$colWidth’>”;
                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(!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’]);
                    $row[‘typelink’] = “<a href='”.$row[‘typeurl’].”‘>”.$row[‘typename’].”</a>”;
                    $row[‘image’] = “<img src='”.$row[‘picname’].”‘ border=’0′ width=’$imgwidth’ height=’$imgheight’                $row[‘imglink’] = “<a href='”.$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(preg_match(‘#b#’, $row[‘flag’])) $row[‘title’] = “<strong>”.$row[‘title’].”</strong>”;
                    $row[‘textlink’] = “<a href='”.$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’) {
                                $dtp2->Assign($k,$row);
                            }
                            else {
                                if(isset($row[$ctag->GetName()])) $dtp2->Assign($k,$row[$ctag->GetName()]);
                                else $dtp2->Assign($k,”);
                            }
                        }
                        $GLOBALS[‘autoindex’]++;
                    }
     
                    $artlist .= $dtp2->GetResult();
                }
                //if hasRow
                else
                {
                    $artlist .= ”;
                }
                if($col>1) $artlist .= ”    </td>”;
            }
            //Loop Col
            if($col>1) $i += $col – 1;
            if($col>1) $artlist .= ”    </tr>”;
        }
        //loop line
        if($col>1) $artlist .= ”    </table>”;
        $dsql->FreeResult(“al”);
        return $artlist;
    }
    前台模板标签调用写法
     
    {dede:liketags row=’3′ typeid=’6′ titlelen=’250′ eregtype=’all|tag|keyword’ flag=’c’ infolen=’250′}
    <li>
    <a href=”[field:arcurl/]” title=”[field:title/]” target=”_blank”>
    <div class=”list-img”>
    <img src=”[field:litpic/]” alt=”[field:title/]”/>
    </div>
    <div class=”list-info”>
    <p class=”title”>[field:title/]</p>
    <p class=”meta”>¥[field:jiage/]元</p>
    </div>
    </a>
    </li>
    {/dede:liketags}
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